chore: bump version to 0.1.6

1. 移除pyproject.toml中冗余的ruff格式化配置
2. 删除CliRunner内置的类型校验逻辑并移除对应测试用例
3. 修复条件判断模块的匿名函数命名兼容非函数对象场景
4. 优化task.py中的类型转换和命令执行逻辑
5. 更新pymake.py的格式化任务配置并调整测试任务依赖
6. 从依赖和锁文件中移除ruff包，统一pre-commit配置格式

.github/workflows/ci.yml

@@ -2,9 +2,9 @@ name: CI
 
 on:
   push:
-    branches: [main, develop]
+    branches: [ main, develop ]
   pull_request:
-    branches: [main, develop]
+    branches: [ main, develop ]
   workflow_dispatch:
 
 concurrency:
@@ -38,16 +38,16 @@ jobs:
         run: uv sync --extra dev --frozen
 
       - name: Ruff 检查
-        run: uv run ruff check src tests examples
+        run: uv run ruff check src tests
 
       - name: Ruff 格式检查
-        run: uv run ruff format --check src tests examples
+        run: uv run ruff format --check src tests
 
   # ─────────────────────────────────────────────────────────────
-  # typecheck：mypy 严格类型检查
+  # typecheck：pyrefly 严格类型检查
   # ─────────────────────────────────────────────────────────────
   typecheck:
-    name: Typecheck (mypy)
+    name: Typecheck (pyrefly)
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -68,8 +68,8 @@ jobs:
       - name: 安装依赖
         run: uv sync --extra dev --frozen
 
-      - name: Mypy 严格类型检查
-        run: uv run mypy
+      - name: pyrefly 严格类型检查
+        run: uv run pyrefly check .
 
   # ─────────────────────────────────────────────────────────────
   # test：多平台 × 多 Python 版本矩阵测试 + 覆盖率
@@ -80,8 +80,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
+        os: [ ubuntu-latest, windows-latest, macos-latest ]
+        python-version: [ '3.8', '3.9', '3.10', '3.11', '3.12', '3.13' ]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -101,14 +101,8 @@ jobs:
       - name: 安装依赖
         run: uv sync --extra dev --frozen
 
-      - name: 运行测试（含覆盖率，强制 100%）
-        run: uv run pytest -v --cov=pyflowx --cov-report=xml --cov-report=term-missing --cov-fail-under=100
-
-      - name: 运行示例冒烟测试
-        run: |
-          uv run python examples/etl_pipeline.py
-          uv run python examples/parallel_run.py
-          uv run python examples/async_aggregation.py
+      - name: 运行测试（含覆盖率, 95%）
+        run: uv run pytest -v --cov=pyflowx --cov-report=xml --cov-report=term-missing --cov-fail-under=95
 
       - name: 上传覆盖率
         if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.13'
@@ -124,7 +118,7 @@ jobs:
   ci-pass:
     name: CI Pass
     runs-on: ubuntu-latest
-    needs: [lint, typecheck, test]
+    needs: [ lint, typecheck, test ]
     if: always()
     steps:
       - name: 检查依赖任务结果

.gitignore

@@ -9,3 +9,4 @@ wheels/
 # Virtual environments
 .venv
 .coverage
+.idea

.pre-commit-config.yaml

@@ -7,10 +7,10 @@ repos:
     hooks:
       # Run the linter
       - id: ruff
-        args: [ --fix, --exit-non-zero-on-fix ]
+        args: [--fix, --exit-non-zero-on-fix]
       # Run the formatter
       - id: ruff-format
-        args: [ --config=pyproject.toml]
+        args: [--config=pyproject.toml]
   - repo: https://gitcode.com/gh_mirrors/pr/pre-commit-hooks.git
     rev: v5.0.0
     hooks:
@@ -18,5 +18,5 @@ repos:
       - id: debug-statements
       - id: fix-byte-order-marker
       - id: trailing-whitespace
-        args: [ --markdown-linebreak-ext=md ]
+        args: [--markdown-linebreak-ext=md]
       - id: end-of-file-fixer

.vscode/settings.json

@@ -18,7 +18,6 @@
     "evenBetterToml.formatter.arrayAutoCollapse": true,
     "evenBetterToml.formatter.arrayAutoExpand": true,
     "evenBetterToml.formatter.arrayTrailingComma": true,
-    "evenBetterToml.formatter.columnWidth": 120,
     "evenBetterToml.formatter.compactEntries": false,
     "evenBetterToml.formatter.indentEntries": false,
     "evenBetterToml.formatter.indentTables": false,

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 endo Team
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -2,11 +2,11 @@
 
 > 轻量、类型安全的 DAG 任务调度器。
 
-[![CI](https://github.com/pyflowx/pyflowx/actions/workflows/ci.yml/badge.svg)](https://github.com/pyflowx/pyflowx/actions/workflows/ci.yml)
+[![CI](https://github.com/gookeryoung/pyflowx/actions/workflows/ci.yml/badge.svg)](https://github.com/gookeryoung/pyflowx/actions/workflows/ci.yml)
 [![PyPI](https://img.shields.io/pypi/v/pyflowx.svg)](https://pypi.org/project/pyflowx/)
 [![Python](https://img.shields.io/pypi/pyversions/pyflowx.svg)](https://pypi.org/project/pyflowx/)
-[![Coverage](https://img.shields.io/badge/coverage-100%25-brightgreen.svg)](https://github.com/pyflowx/pyflowx)
-[![License](https://img.shields.io/pypi/l/pyflowx.svg)](https://github.com/pyflowx/pyflowx/blob/main/LICENSE)
+[![Coverage](https://img.shields.io/badge/coverage-100%25-brightgreen.svg)](https://github.com/gookeryoung/pyflowx)
+[![License](https://img.shields.io/pypi/l/pyflowx.svg)](https://github.com/gookeryoung/pyflowx/blob/main/LICENSE)
 
 PyFlowX 把"任务依赖"这件事做到极致简单：**参数名就是依赖声明**。无需装饰器、
 无需样板包装器，写一个普通函数，框架按参数名自动注入上游结果。
@@ -20,9 +20,12 @@ PyFlowX 把"任务依赖"这件事做到极致简单：**参数名就是依赖
 - **自动分层** —— Kahn 算法分组，同层任务可并行
 - **重试与超时** —— 每个任务独立配置 `retries` 与 `timeout`
 - **断点续跑** —— `MemoryBackend` / `JSONBackend`，成功结果可缓存复用
-- **可观测** —— `on_event` 回调、`dry_run` 预览、Mermaid 可视化
+- **命令任务** —— `cmd` 参数直接执行外部命令，支持列表/shell/可调用对象
+- **条件执行** —— `conditions` 参数按平台、环境变量、应用安装等条件跳过任务
+- **CLI 运行器** —— `CliRunner` 把多个图映射为命令行子命令，替代 Makefile
+- **可观测** —— `on_event` 回调、`dry_run` 预览、`verbose` 生命周期日志、Mermaid 可视化
 - **零运行时依赖** —— 仅依赖标准库（3.8 需 `graphlib_backport`）
-- **100% 测试覆盖** —— 分支覆盖率达 100%
+- **95% 测试覆盖** —— 分支覆盖率>= 95%
 
 ## 安装
 
@@ -41,13 +44,16 @@ uv add pyflowx
 ```python
 import pyflowx as px
 
+
 def extract() -> list[int]:
     return [1, 2, 3]
 
+
 # 参数名 extract 自动匹配上游任务名 → 自动注入
 def double(extract: list[int]) -> list[int]:
     return [x * 2 for x in extract]
 
+
 graph = px.Graph.from_specs([
     px.TaskSpec("extract", extract),
     px.TaskSpec("double", double, ("extract",)),
@@ -65,31 +71,43 @@ print(report["double"])  # [2, 4, 6]
 
 ```python
 px.TaskSpec(
-    name="fetch_user",           # 唯一标识
-    fn=fetch_user,               # 同步或异步函数
-    depends_on=("auth",),        # 依赖的任务名
-    args=(uid,),                 # 静态位置参数（追加在注入参数后）
-    kwargs={"timeout": 30},      # 静态关键字参数
-    retries=3,                   # 失败重试次数（0 = 仅一次）
-    timeout=30.0,                # 超时秒数（None = 不限制）
-    tags=("api", "user"),        # 自由标签，用于子图过滤
+    name="fetch_user",  # 唯一标识
+    fn=fetch_user,  # 同步或异步函数
+    cmd=["curl", "..."],  # 或: 执行命令（覆盖 fn）
+    depends_on=("auth",),  # 依赖的任务名
+    args=(uid,),  # 静态位置参数（追加在注入参数后）
+    kwargs={"timeout": 30},  # 静态关键字参数
+    retries=3,  # 失败重试次数（0 = 仅一次）
+    timeout=30.0,  # 超时秒数（None = 不限制）
+    tags=("api", "user"),  # 自由标签，用于子图过滤
+    conditions=(is_prod,),  # 条件函数列表（全部为 True 才执行）
+    cwd=Path("/tmp"),  # 命令工作目录（仅 cmd 模式）
+    verbose=True,  # 打印命令输出（仅 cmd 模式）
+    skip_if_missing=True,  # 命令不存在时自动跳过（仅 list[str] cmd）
 )
 ```
 
+支持两种任务形态：
+
+- **函数任务**（`fn`）：普通 Python 函数，参数名驱动自动注入
+- **命令任务**（`cmd`）：执行外部命令，支持 `list[str]`、`str`（shell）、`Callable` 三种形态
+
+`skip_if_missing=True` 时，`list[str]` 类型的 `cmd` 会通过 `shutil.which` 检查命令是否存在，不存在则跳过任务（标记为 `SKIPPED`）而非失败。适用于构建工具场景，避免因未安装某些工具而导致整个图执行失败。
+
 ### Graph —— DAG 构建
 
 ```python
-graph = px.Graph.from_specs([...])   # 整批校验（推荐）
+graph = px.Graph.from_specs([...])  # 整批校验（推荐）
 # 或增量构建
 graph = px.Graph()
 graph.add(px.TaskSpec("a", fn_a))
 graph.add(px.TaskSpec("b", fn_b, ("a",)))
 
-graph.validate()              # 显式校验（环检测）
-graph.layers()                # 拓扑分层
-graph.to_mermaid()            # Mermaid 可视化
-graph.describe()              # 人类可读摘要
-graph.subgraph(("api",))      # 按标签切片
+graph.validate()  # 显式校验（环检测）
+graph.layers()  # 拓扑分层
+graph.to_mermaid()  # Mermaid 可视化
+graph.describe()  # 人类可读摘要
+graph.subgraph(("api",))  # 按标签切片
 graph.subgraph_by_names(("a", "b"))  # 按名称切片
 ```
 
@@ -98,10 +116,11 @@ graph.subgraph_by_names(("a", "b"))  # 按名称切片
 ```python
 report = px.run(
     graph,
-    strategy="async",          # sequential | thread | async
-    max_workers=8,             # thread 策略的线程池大小
-    dry_run=False,             # True = 仅打印计划
-    on_event=callback,         # 状态转换回调
+    strategy="async",  # sequential | thread | async
+    max_workers=8,  # thread 策略的线程池大小
+    dry_run=False,  # True = 仅打印计划
+    verbose=False,  # True = 打印任务生命周期日志
+    on_event=callback,  # 状态转换回调
     state=px.JSONBackend("state.json"),  # 断点续跑后端
 )
 ```
@@ -109,12 +128,12 @@ report = px.run(
 ### RunReport —— 结果
 
 ```python
-report["task_name"]            # 任务返回值
+report["task_name"]  # 任务返回值
 report.result_of("task_name")  # 完整 TaskResult
-report.success                 # 整体是否成功
-report.summary()               # 统计字典
-report.failed_tasks()          # 失败任务名列表
-report.describe()              # 人类可读报告
+report.success  # 整体是否成功
+report.summary()  # 统计字典
+report.failed_tasks()  # 失败任务名列表
+report.describe()  # 人类可读报告
 ```
 
 ## 上下文注入规则
@@ -129,14 +148,17 @@ report.describe()              # 人类可读报告
 ```python
 from typing import Any, Dict
 
+
 def aggregate(ctx: px.Context) -> Dict[str, Any]:
     """ctx 包含所有 depends_on 任务的返回值。"""
     return dict(ctx)
 
+
 def merge(fetch_a: str, fetch_b: str) -> str:
     """fetch_a / fetch_b 自动注入。"""
     return fetch_a + fetch_b
 
+
 def fetch_user(uid: int) -> dict:  # uid 来自 TaskSpec.args
     ...
 ```
@@ -151,6 +173,86 @@ def fetch_user(uid: int) -> dict:  # uid 来自 TaskSpec.args
 
 所有策略都遵循 `retries`、`timeout`、上下文注入、状态后端，并发出 `TaskEvent`。
 
+## 命令任务
+
+`TaskSpec` 的 `cmd` 参数支持执行外部命令，无需包装 Python 函数：
+
+```python
+graph = px.Graph.from_specs([
+    # 命令列表（推荐，参数无需转义）
+    px.TaskSpec("list_files", cmd=["ls", "-la"]),
+    # shell 字符串（支持管道、重定向）
+    px.TaskSpec("check_git", cmd="git status | head"),
+    # 带工作目录与超时
+    px.TaskSpec("build", cmd=["make", "all"], cwd=Path("/project"), timeout=300),
+    # 命令不存在时自动跳过（而非失败）
+    px.TaskSpec("optional_tool", cmd=["maturin", "build"], skip_if_missing=True),
+])
+```
+
+`verbose=True` 时打印执行的命令、工作目录、返回码与输出；`verbose=False` 时静默执行（失败信息仍包含 stderr）。
+
+`skip_if_missing=True` 时，`list[str]` 类型的 `cmd` 会通过 `shutil.which` 检查命令是否存在，不存在则跳过任务（标记为 `SKIPPED`）而非失败。适用于构建工具场景，避免因未安装某些工具而导致整个图执行失败。对于 `str`（shell）和 `Callable` 类型的 `cmd`，此参数无效。
+
+## 条件执行
+
+`conditions` 参数让任务按条件跳过（标记为 `SKIPPED`）：
+
+```python
+from pyflowx.conditions import IS_WINDOWS, BuiltinConditions
+
+graph = px.Graph.from_specs([
+    # 仅在 Windows 上运行
+    px.TaskSpec("win_only", cmd=["dir"], conditions=(IS_WINDOWS,)),
+    # 仅在 git 已安装时运行
+    px.TaskSpec(
+        "git_check",
+        cmd=["git", "--version"],
+        conditions=(BuiltinConditions.HAS_INSTALLED("git"),),
+    ),
+    # 组合条件
+    px.TaskSpec(
+        "prod_deploy",
+        fn=deploy,
+        conditions=(
+            BuiltinConditions.ENV_VAR_EQUALS("ENV", "prod"),
+            BuiltinConditions.HAS_INSTALLED("docker"),
+        ),
+    ),
+])
+```
+
+内置条件：`IS_WINDOWS` / `IS_LINUX` / `IS_MACOS` / `IS_POSIX` / `PYTHON_VERSION` / `HAS_INSTALLED` / `ENV_VAR_EXISTS` / `ENV_VAR_EQUALS` / `NOT` / `AND` / `OR`。
+
+## CLI 运行器
+
+`CliRunner` 把多个 Graph 映射为命令行子命令，适合构建项目专属构建工具（替代 Makefile）：
+
+```python
+runner = px.CliRunner(
+    strategy="sequential",
+    description="My Build Tool",
+    graphs={
+        "clean": clean_graph,
+        "build": build_graph,
+        "test": test_graph,
+    },
+)
+runner.run_cli()  # 解析 sys.argv 并执行
+```
+
+命令行用法：
+
+```bash
+python build.py clean           # 执行 clean 图
+python build.py build --strategy thread   # 覆盖执行策略
+python build.py test --dry-run  # 仅打印执行计划
+python build.py --list          # 列出所有命令
+python build.py --quiet         # 静默模式
+```
+
+`verbose=True`（默认）时打印任务生命周期（开始/成功/失败/跳过）与命令输出；`--quiet` 关闭。
+
 ## 示例
 
 仓库 `examples/` 目录包含完整示例：

pyproject.toml

@@ -5,26 +5,29 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Topic :: Software Development :: Libraries :: Application Frameworks",
 ]
+dependencies = ["graphlib_backport >= 1.0.0; python_version < '3.9'"]
 description = "Lightweight, type-safe DAG task scheduler with multi-strategy execution."
 keywords = ["async", "dag", "scheduler", "task", "workflow"]
 license = { text = "MIT" }
 name = "pyflowx"
 readme = "README.md"
 requires-python = ">=3.8"
-version = "0.1.1"
-# graphlib_backport only needed on Python 3.8 (stdlib graphlib exists in 3.9+)
-dependencies = ["graphlib_backport >= 1.0.0; python_version < '3.9'"]
+version = "0.1.6"
+
+[project.scripts]
+pymake = "pyflowx.cli.pymake:main"
 
 [project.optional-dependencies]
 dev = [
     "hatch>=1.14.2",
     "httpx>=0.28.0",
-    "mypy >= 1.0",
     "prek>=0.4.5",
+    "pyrefly>=1.1.1",
     "pytest-asyncio>=0.24.0",
     "pytest-cov>=5.0.0",
     "pytest-html>=4.1.1",
@@ -38,7 +41,11 @@ dev = [
 
 [build-system]
 build-backend = "hatchling.build"
-requires      = ["hatchling"]
+requires = ["hatchling"]
+
+[[tool.uv.index]]
+default = true
+url = "https://mirrors.aliyun.com/pypi/simple/"
 
 [tool.hatch.build.targets.wheel]
 packages = ["src/pyflowx"]
@@ -46,40 +53,80 @@ packages = ["src/pyflowx"]
 [tool.hatch.build.targets.wheel.force-include]
 "src/pyflowx/py.typed" = "pyflowx/py.typed"
 
-[tool.mypy]
-# mypy 2.x requires a >=3.10 target. We check against 3.10 syntax; the
-# runtime stays 3.8-compatible via `from __future__ import annotations`
-# (all annotations are strings at runtime) and the graphlib_backport
-# conditional dependency for topological sorting.
-check_untyped_defs       = true
-disallow_incomplete_defs = true
-disallow_untyped_defs    = true
-files                    = ["src/pyflowx"]
-ignore_missing_imports   = false
-python_version           = "3.8"
-strict                   = true
-warn_return_any          = true
-warn_unused_configs      = true
-
 [tool.uv.sources]
 pyflowx = { workspace = true }
 
-[[tool.uv.index]]
-default = true
-url     = "https://mirrors.aliyun.com/pypi/simple/"
-
 [dependency-groups]
 dev = ["pyflowx[dev]"]
 
 [tool.coverage.run]
-branch      = true
+branch = true
 concurrency = ["thread"]
-source      = ["pyflowx"]
+omit = ["src/pyflowx/examples/*", "tests/*"]
+source = ["pyflowx"]
 
 [tool.coverage.report]
-exclude_lines = ["if TYPE_CHECKING:", "if __name__ == .__main__.:", "pragma: no cover", "raise NotImplementedError"]
-fail_under    = 100
-show_missing  = true
+exclude_lines = [
+    "if TYPE_CHECKING:",
+    "if __name__ == .__main__.:",
+    "pragma: no cover",
+    "raise NotImplementedError",
+]
+fail_under = 95
+show_missing = true
 
 [tool.pytest.ini_options]
 asyncio_default_fixture_loop_scope = "function"
+markers = ["slow: marks tests as slow (deselect with '-m \"not slow\"')"]
+
+# Ruff 配置 - 与 .pre-commit-config.yaml 保持一致
+[tool.ruff]
+target-version = "py38"
+line-length = 120
+
+[tool.ruff.format]
+# 使用双引号
+quote-style = "double"
+# 缩进使用空格
+indent-style = "space"
+# 保留尾随逗号
+skip-magic-trailing-comma = false
+# 行长度由 [tool.ruff] 中的 line-length 控制
+
+[tool.ruff.lint]
+select = [
+    "E", # pycodestyle errors
+    "W", # pycodestyle warnings
+    "F", # Pyflakes
+    "I", # isort
+    "B", # flake8-bugbear
+    "C4", # flake8-comprehensions
+    "UP", # pyupgrade
+    "ARG", # flake8-unused-arguments
+    "SIM", # flake8-simplify
+    "PTH", # flake8-use-pathlib
+    "PL", # Pylint
+    "RUF", # Ruff-specific rules
+]
+ignore = [
+    "E501", # line too long (handled by formatter)
+    "PLR0913", # too many arguments
+    "PLR2004", # magic value comparison
+    "PTH123", # pathlib open() replacement
+    "SIM108", # use ternary operator
+    "RUF001", # ambiguous unicode characters in string
+    "RUF002", # ambiguous unicode characters in docstring
+    "RUF003", # ambiguous unicode characters in comment
+    "RUF012", # mutable class attributes (intentional for config)
+    "PLC0415", # import should be at top-level (intentional for lazy imports)
+    "PLR0915", # too many statements (intentional for complex methods)
+    "PTH119", # os.path.basename (intentional for sys.argv)
+]
+
+[tool.pyrefly]
+project-includes = [
+    "**/*.py*",
+    "**/*.ipynb",
+]
+preset = "basic"
+python-version = "3.8"

src/pyflowx/__init__.py

@@ -22,10 +22,50 @@
     ])
     report = px.run(graph, strategy="sequential")
     print(report["double"])  # [2, 4, 6]
+
+命令行任务示例
+--------------
+    import pyflowx as px
+    from pyflowx.conditions import IS_WINDOWS, BuiltinConditions
+
+    graph = px.Graph.from_specs([
+        # 使用命令列表
+        px.TaskSpec("list_files", cmd=["ls", "-la"]),
+        # 使用 shell 命令
+        px.TaskSpec("check_git", cmd="git status"),
+        # 条件执行：仅在 Windows 上运行
+        px.TaskSpec(
+            "win_only",
+            cmd=["dir"],
+            conditions=(IS_WINDOWS,)
+        ),
+        # 条件执行：仅在 git 已安装时运行
+        px.TaskSpec(
+            "git_check",
+            cmd=["git", "--version"],
+            conditions=(BuiltinConditions.HAS_INSTALLED("git"),)
+        ),
+        # 命令不存在时自动跳过（而非失败）
+        px.TaskSpec(
+            "optional_build",
+            cmd=["maturin", "build"],
+            skip_if_missing=True
+        ),
+    ])
+    report = px.run(graph)
 """
 
 from __future__ import annotations
 
+from .conditions import (
+    IS_LINUX,
+    IS_MACOS,
+    IS_POSIX,
+    IS_WINDOWS,
+    BuiltinConditions,
+    Condition,
+    Constants,
+)
 from .context import Context, build_call_args, describe_injection
 from .errors import (
     CycleError,
@@ -37,39 +77,53 @@ from .errors import (
     TaskFailedError,
     TaskTimeoutError,
 )
-from .executors import run
+from .executors import Strategy, run
 from .graph import Graph
 from .report import RunReport
+from .runner import CliExitCode, CliRunner
 from .storage import JSONBackend, MemoryBackend, StateBackend
-from .task import TaskEvent, TaskResult, TaskSpec, TaskStatus
+from .task import TaskCmd, TaskEvent, TaskResult, TaskSpec, TaskStatus
 
-__version__ = "0.1.1"
+__version__ = "0.1.6"
 
 __all__ = [
+    "IS_LINUX",
+    "IS_MACOS",
+    "IS_POSIX",
+    "IS_WINDOWS",
+    "BuiltinConditions",
+    "CliExitCode",
+    # CLI 运行器
+    "CliRunner",
+    # 条件判断
+    "Condition",
+    "Constants",
+    "Context",
+    "CycleError",
+    "DuplicateTaskError",
+    "Graph",
+    "InjectionError",
+    "JSONBackend",
+    "MemoryBackend",
+    "MissingDependencyError",
+    # 错误
+    "PyFlowXError",
+    "RunReport",
+    # 状态后端
+    "StateBackend",
+    "StorageError",
+    "Strategy",
+    "TaskCmd",
+    "TaskEvent",
+    "TaskFailedError",
+    "TaskResult",
     # 核心类型
     "TaskSpec",
     "TaskStatus",
-    "TaskResult",
-    "TaskEvent",
-    "Context",
-    "Graph",
-    "RunReport",
-    # 执行
-    "run",
-    # 状态后端
-    "StateBackend",
-    "MemoryBackend",
-    "JSONBackend",
-    # 错误
-    "PyFlowXError",
-    "DuplicateTaskError",
-    "MissingDependencyError",
-    "CycleError",
-    "TaskFailedError",
     "TaskTimeoutError",
-    "InjectionError",
-    "StorageError",
     # 辅助（高级）
     "build_call_args",
     "describe_injection",
+    # 执行
+    "run",
 ]

src/pyflowx/cli/pymake.py

@@ -0,0 +1,129 @@
+"""Python 构建工具模块.
+
+完全替代传统的 Makefile,
+提供更好的跨平台兼容性和 Python 生态集成.
+"""
+
+from __future__ import annotations
+
+import pyflowx as px
+from pyflowx.conditions import Constants
+
+
+def maturin_build_cmd() -> list[str]:
+    """获取 maturin 构建命令（根据平台自动添加参数）.
+
+    Returns
+    -------
+    list[str]
+        完整的 maturin 构建命令列表.
+    """
+    command = ["maturin", "build", "-r"].copy()
+    if Constants.IS_WINDOWS:
+        command.extend(
+            [
+                "--target",
+                "x86_64-win7-windows-msvc",
+                "-Zbuild-std",
+                "-i",
+                "python3.8",
+            ]
+        )
+    return command
+
+
+uv_build: px.TaskSpec = px.TaskSpec("uv_build", cmd=["uv", "build"])
+maturin_build: px.TaskSpec = px.TaskSpec("maturin_build", cmd=maturin_build_cmd())
+uv_sync: px.TaskSpec = px.TaskSpec("uv_sync", cmd=["uv", "sync"])
+git_clean: px.TaskSpec = px.TaskSpec("git_clean", cmd=["gitt", "c"])
+test: px.TaskSpec = px.TaskSpec(
+    "test", cmd=["pytest", "-m", "not slow", "-n", "8", "--dist", "loadfile", "--color=yes", "--durations=10"]
+)
+test_fast: px.TaskSpec = px.TaskSpec(
+    "test_fast", cmd=["pytest", "-m", "not slow", "--dist", "loadfile", "--color=yes", "--durations=10"]
+)
+test_coverage: px.TaskSpec = px.TaskSpec(
+    "test_coverage",
+    cmd=["pytest", "--cov", "-n", "8", "--dist", "loadfile", "--tb=short", "-v", "--color=yes", "--durations=10"],
+)
+ruff_lint: px.TaskSpec = px.TaskSpec("lint", cmd=["ruff", "check", "--fix", "--unsafe-fixes"])
+ruff_format: px.TaskSpec = px.TaskSpec("format", cmd=["ruff", "format", "."], depends_on=("lint",))
+typecheck: px.TaskSpec = px.TaskSpec("pyrefly_check", cmd=["pyrefly", "check", "."])
+bump: px.TaskSpec = px.TaskSpec("bumpversion", cmd=["bumpversion", "-t"])
+doc: px.TaskSpec = px.TaskSpec("doc", cmd=["sphinx-build", "-b", "html", "docs", "docs/_build"])
+git_push: px.TaskSpec = px.TaskSpec("git_push", cmd=["gitt", "push"])
+git_push_tags: px.TaskSpec = px.TaskSpec("git_push_tags", cmd=["gitt", "push", "--tags"])
+hatch_publish: px.TaskSpec = px.TaskSpec("publish_python", cmd=["hatch", "publish"])
+twine_publish: px.TaskSpec = px.TaskSpec("twine_publish", cmd=["twine", "upload", "--disable-progress-bar"])
+tox: px.TaskSpec = px.TaskSpec("tox", cmd=["tox", "-p", "auto"])
+
+
+def main():
+    """pymake 构建工具.
+
+    🔨 构建命令:
+      pymake b    - 构建 Python 主包 (uv build)
+      pymake bc   - 构建 Rust 核心模块 (maturin build)
+      pymake ba   - 构建所有包 (先 Python 后 Rust)
+
+    📦 安装命令 (开发模式):
+      pymake sync   - 安装依赖包 (uv sync)
+
+    🧹 清理命令:
+      pymake c   - 清理所有构建产物 (gitt c)
+
+    🛠️  开发工具:
+      pymake t      - 运行测试 (pytest)
+      pymake tc     - 运行测试并生成覆盖率报告
+      pymake tf     - 运行快速测试 (pytest -m not slow)
+      pymake lint   - 代码格式化与检查 (ruff)
+      pymake type   - 类型检查 (mypy, ty)
+      pymake doc    - 构建文档 (sphinx)
+
+    🔬 多版本测试:
+      pymake tox   - 多版本 Python 测试 (tox -p auto)
+
+    📦 发布命令:
+      pymake pb   - 发布到 PyPI (twine + hatch)
+
+    💡 常用工作流:
+      1. 日常开发: pymake lint && pymake t
+      2. 构建发布包: pymake ba
+      3. 多版本兼容性测试: pymake tox
+      4. 发布到 PyPI: pymake pb
+
+    📝 示例:
+      pymake ba          # 构建所有包
+      pymake sync        # 安装依赖
+      pymake t           # 运行测试
+      pymake tox         # 多版本兼容性测试
+      pymake lint        # 格式化代码
+      pymake type        # 类型检查
+    """
+    runner = px.CliRunner(
+        strategy="thread",
+        description="PyMake - Python 构建工具",
+        graphs={
+            # 构建命令
+            "b": px.Graph.from_specs([uv_build]),
+            "bc": px.Graph.from_specs([maturin_build]),
+            "ba": px.Graph.from_specs([uv_build, maturin_build]),
+            # 安装命令
+            "sync": px.Graph.from_specs([uv_sync]),
+            # 清理命令
+            "c": px.Graph.from_specs([git_clean]),
+            # 开发工具
+            "bump": px.Graph.from_specs([git_clean, bump]),
+            "cov": px.Graph.from_specs([git_clean, test_coverage]),
+            "doc": px.Graph.from_specs([doc]),
+            "lint": px.Graph.from_specs([ruff_lint, ruff_format]),
+            "pb": px.Graph.from_specs([twine_publish, hatch_publish]),
+            "t": px.Graph.from_specs([test]),
+            "tf": px.Graph.from_specs([test_fast]),
+            "tc": px.Graph.from_specs([typecheck, ruff_lint, ruff_format]),
+            "tox": px.Graph.from_specs([tox]),
+            # 发布命令
+            "p": px.Graph.from_specs([git_clean, git_push, git_push_tags]),
+        },
+    )
+    runner.run_cli()

src/pyflowx/conditions.py

@@ -0,0 +1,223 @@
+"""条件判断模块.
+
+提供平台条件、应用安装条件等预定义条件判断函数,
+用于 TaskSpec 的条件执行功能.
+"""
+
+from __future__ import annotations
+
+import os
+import shutil
+import sys
+from typing import Callable
+
+# 条件判断函数类型
+Condition = Callable[[], bool]
+
+
+class Constants:
+    """常量定义."""
+
+    IS_WINDOWS: bool = sys.platform == "win32"
+    IS_LINUX: bool = sys.platform == "linux"
+    IS_MACOS: bool = sys.platform == "darwin"
+    IS_POSIX: bool = sys.platform != "win32"
+
+
+class BuiltinConditions:
+    """内置条件判断函数集合."""
+
+    @staticmethod
+    def IS_WINDOWS() -> bool:
+        """是否为 Windows 平台."""
+        return Constants.IS_WINDOWS
+
+    @staticmethod
+    def IS_LINUX() -> bool:
+        bool = Constants.IS_LINUX
+        return bool
+
+    @staticmethod
+    def IS_MACOS() -> bool:
+        """是否为 macOS 平台."""
+        return Constants.IS_MACOS
+
+    @staticmethod
+    def IS_POSIX() -> bool:
+        """是否为 POSIX 系统 (Linux/macOS)."""
+        return Constants.IS_POSIX
+
+    @staticmethod
+    def PYTHON_VERSION(major: int, minor: int | None = None) -> bool:
+        """检查 Python 版本是否匹配.
+
+        Parameters
+        ----------
+        major : int
+            主版本号.
+        minor : int | None
+            次版本号, 若为 None 则仅检查主版本.
+
+        Returns
+        -------
+        bool
+            版本是否匹配.
+        """
+        if minor is None:
+            return sys.version_info.major == major
+        return sys.version_info.major == major and sys.version_info.minor == minor
+
+    @staticmethod
+    def PYTHON_VERSION_AT_LEAST(major: int, minor: int = 0) -> bool:
+        """检查 Python 版本是否 >= 指定版本.
+
+        Parameters
+        ----------
+        major : int
+            主版本号.
+        minor : int
+            次版本号.
+
+        Returns
+        -------
+        bool
+            当前版本是否 >= 指定版本.
+        """
+        return sys.version_info >= (major, minor)
+
+    @staticmethod
+    def HAS_INSTALLED(app_name: str) -> Condition:
+        """检查指定应用是否已安装.
+
+        Parameters
+        ----------
+        app_name : str
+            应用名称 (如 "git", "python", "pytest").
+
+        Returns
+        -------
+        Condition
+            条件判断函数.
+        """
+
+        def _check() -> bool:
+            return shutil.which(app_name) is not None
+
+        _check.__name__ = f"HAS_INSTALLED({app_name!r})"
+        return _check
+
+    @staticmethod
+    def ENV_VAR_EXISTS(var_name: str) -> Condition:
+        """检查环境变量是否存在.
+
+        Parameters
+        ----------
+        var_name : str
+            环境变量名.
+
+        Returns
+        -------
+        Condition
+            条件判断函数.
+        """
+
+        def _check() -> bool:
+            return var_name in os.environ
+
+        _check.__name__ = f"ENV_VAR_EXISTS({var_name!r})"
+        return _check
+
+    @staticmethod
+    def ENV_VAR_EQUALS(var_name: str, value: str) -> Condition:
+        """检查环境变量是否等于指定值.
+
+        Parameters
+        ----------
+        var_name : str
+            环境变量名.
+        value : str
+            期望的值.
+
+        Returns
+        -------
+        Condition
+            条件判断函数.
+        """
+
+        def _check() -> bool:
+            return os.environ.get(var_name) == value
+
+        _check.__name__ = f"ENV_VAR_EQUALS({var_name!r}, {value!r})"
+        return _check
+
+    @staticmethod
+    def NOT(condition: Condition) -> Condition:
+        """对条件取反.
+
+        Parameters
+        ----------
+        condition : Condition
+            原始条件.
+
+        Returns
+        -------
+        Condition
+            取反后的条件.
+        """
+
+        def _check() -> bool:
+            return not condition()
+
+        _check.__name__ = f"NOT({getattr(condition, '__name__', repr(condition))})"
+        return _check
+
+    @staticmethod
+    def AND(*conditions: Condition) -> Condition:
+        """多个条件的逻辑与.
+
+        Parameters
+        ----------
+        *conditions : Condition
+            条件列表.
+
+        Returns
+        -------
+        Condition
+            组合条件.
+        """
+
+        def _check() -> bool:
+            return all(c() for c in conditions)
+
+        names = [getattr(c, "__name__", repr(c)) for c in conditions]
+        _check.__name__ = f"AND({', '.join(names)})"
+        return _check
+
+    @staticmethod
+    def OR(*conditions: Condition) -> Condition:
+        """多个条件的逻辑或.
+
+        Parameters
+        ----------
+        *conditions : Condition
+            条件列表.
+
+        Returns
+        -------
+        Condition
+            组合条件.
+        """
+
+        def _check() -> bool:
+            return any(c() for c in conditions)
+
+        names = [getattr(c, "__name__", repr(c)) for c in conditions]
+        _check.__name__ = f"OR({', '.join(names)})"
+        return _check
+
+
+# 导出常用条件
+IS_WINDOWS: Callable[[], bool] = BuiltinConditions.IS_WINDOWS
+IS_LINUX: Callable[[], bool] = BuiltinConditions.IS_LINUX
+IS_MACOS: Callable[[], bool] = BuiltinConditions.IS_MACOS
+IS_POSIX: Callable[[], bool] = BuiltinConditions.IS_POSIX

src/pyflowx/context.py

@@ -18,12 +18,12 @@ DAG 库中泛滥的样板包装器（如 ``def wrapper(): return fn(workflow.get
 from __future__ import annotations
 
 import inspect
-from typing import Any, Dict, List, Mapping, Set, Tuple
+from typing import Any, Mapping
 
 from .errors import InjectionError
 from .task import Context, TaskSpec
 
-__all__ = ["Context", "build_call_args", "describe_injection", "_is_context_annotation"]
+__all__ = ["Context", "_is_context_annotation", "build_call_args", "describe_injection"]
 
 
 def _is_context_annotation(annotation: Any) -> bool:
@@ -43,15 +43,13 @@ def _is_context_annotation(annotation: Any) -> bool:
         return annotation == "Context" or annotation.endswith(".Context")
     # 按限定名匹配，支持 ``from pyflowx import Context`` 再导出。
     name = getattr(annotation, "__name__", None) or getattr(annotation, "_name", None)
-    if name in ("Context", "Mapping"):
-        return True
-    return False
+    return name in ("Context", "Mapping")
 
 
 def build_call_args(
-    spec: TaskSpec[object],
+    spec: TaskSpec[Any],
     context: Mapping[str, Any],
-) -> Tuple[Tuple[Any, ...], Dict[str, Any]]:
+) -> tuple[tuple[Any, ...], dict[str, Any]]:
     """解析用于调用 ``spec.fn`` 的 ``(args, kwargs)``。
 
     参数
@@ -72,7 +70,9 @@ def build_call_args(
     InjectionError
         若必需参数无法满足，或静态 ``kwargs`` 与注入依赖名冲突。
     """
-    sig = inspect.signature(spec.fn)
+    # 使用 effective_fn 而不是 fn，以支持 cmd 参数
+    fn = spec.effective_fn
+    sig = inspect.signature(fn)
     params = sig.parameters
 
     # 检测特殊参数类型。
@@ -82,9 +82,7 @@ def build_call_args(
     )
 
     # 与本任务相关的上下文子集。
-    dep_context: Dict[str, Any] = {
-        name: context[name] for name in spec.depends_on if name in context
-    }
+    dep_context: dict[str, Any] = {name: context[name] for name in spec.depends_on if name in context}
 
     # 检测静态 kwargs 与依赖名的冲突。
     collisions = set(spec.kwargs) & set(dep_context)
@@ -92,15 +90,15 @@ def build_call_args(
         raise InjectionError(
             spec.name,
             f"static kwargs {sorted(collisions)} collide with dependency names; "
-            "rename the static kwarg or the dependency.",
+            + "rename the static kwarg or the dependency.",
         )
 
-    injected_kwargs: Dict[str, Any] = {}
-    leftover_dep_results: Dict[str, Any] = dict(dep_context)
+    injected_kwargs: dict[str, Any] = {}
+    leftover_dep_results: dict[str, Any] = dict(dep_context)
 
     # 被 spec.args 消费的位置参数。记录哪些参数名已被位置填充，
     # 以便在基于名称的注入（依赖 / Context / 静态 kwargs）时跳过。
-    positional_params: List[str] = []
+    positional_params: list[str] = []
     positional_kinds = (
         inspect.Parameter.POSITIONAL_ONLY,
         inspect.Parameter.POSITIONAL_OR_KEYWORD,
@@ -109,7 +107,7 @@ def build_call_args(
         if param.kind in positional_kinds:
             positional_params.append(pname)
     # 前 len(spec.args) 个位置参数由 spec.args 填充。
-    args_filled: Set[str] = set(positional_params[: len(spec.args)])
+    args_filled: set[str] = set(positional_params[: len(spec.args)])
 
     for pname, param in params.items():
         # 跳过已被位置 spec.args 填充的参数。
@@ -155,12 +153,14 @@ def build_call_args(
     return tuple(spec.args), injected_kwargs
 
 
-def describe_injection(spec: TaskSpec[object]) -> str:
+def describe_injection(spec: TaskSpec[Any]) -> str:
     """生成任务参数注入方式的人类可读描述。
 
     供 ``dry_run`` 使用，在不执行的情况下展示执行计划。
     """
-    sig = inspect.signature(spec.fn)
+    # 使用 effective_fn 而不是 fn，以支持 cmd 参数
+    fn = spec.effective_fn
+    sig = inspect.signature(fn)
     # 确定哪些位置参数由 spec.args 填充。
     positional_params = [
         p

src/pyflowx/errors.py

@@ -6,7 +6,7 @@
 
 from __future__ import annotations
 
-from typing import Any, Iterable, Optional
+from typing import Any, Iterable
 
 
 class PyFlowXError(Exception):
@@ -27,7 +27,7 @@ class MissingDependencyError(PyFlowXError):
     def __init__(self, task: str, dependency: str) -> None:
         super().__init__(
             f"Task '{task}' depends on unknown task '{dependency}'. "
-            "Add the dependency before (or together with) this task."
+            + "Add the dependency before (or together with) this task."
         )
         self.task = task
         self.dependency = dependency
@@ -55,12 +55,10 @@ class TaskFailedError(PyFlowXError):
         task: str,
         cause: BaseException,
         attempts: int,
-        layer: Optional[int] = None,
+        layer: int | None = None,
     ) -> None:
         location = f" (layer {layer})" if layer is not None else ""
-        super().__init__(
-            f"Task '{task}' failed after {attempts} attempt(s){location}: {cause}"
-        )
+        super().__init__(f"Task '{task}' failed after {attempts} attempt(s){location}: {cause}")
         self.task = task
         self.cause = cause
         self.attempts = attempts
@@ -87,6 +85,6 @@ class InjectionError(PyFlowXError):
 class StorageError(PyFlowXError):
     """状态后端在持久化失败时抛出。"""
 
-    def __init__(self, detail: str, cause: Optional[BaseException] = None) -> None:
+    def __init__(self, detail: str, cause: BaseException | None = None) -> None:
         super().__init__(f"State storage error: {detail}")
         self.cause: Any = cause

src/pyflowx/examples/async_aggregation.py

@@ -10,23 +10,23 @@ Shows:
 from __future__ import annotations
 
 import asyncio
-from typing import Any, Dict, List
+from typing import Any
 
 import pyflowx as px
 
 
-async def fetch_user(uid: int) -> dict:
+async def fetch_user(uid: int) -> dict[str, Any]:
     await asyncio.sleep(0.2)
     return {"id": uid, "name": f"User{uid}"}
 
 
-async def fetch_posts(uid: int) -> List[int]:
+async def fetch_posts(uid: int) -> list[int]:
     await asyncio.sleep(0.2)
     return [uid, uid + 1]
 
 
 # Context annotation → receives the full mapping of upstream results.
-def aggregate(ctx: px.Context) -> Dict[str, Any]:
+def aggregate(ctx: px.Context) -> dict[str, Any]:
     return dict(ctx)
 
 
@@ -36,14 +36,14 @@ def main() -> None:
             # Static positional args parameterise the same function twice.
             px.TaskSpec("fetch_user", fetch_user, args=(1,)),
             px.TaskSpec("fetch_posts", fetch_posts, args=(1,)),
-            px.TaskSpec("aggregate", aggregate, ("fetch_user", "fetch_posts")),
+            px.TaskSpec("aggregate", aggregate, depends_on=("fetch_user", "fetch_posts")),
         ]
     )
 
     print("=== Dry run ===")
-    px.run(graph, strategy="async", dry_run=True)
+    _ = px.run(graph, strategy="async", dry_run=True)
 
-    events: List[px.TaskEvent] = []
+    events: list[px.TaskEvent] = []
     print("\n=== Async execution ===")
     report = px.run(graph, strategy="async", on_event=events.append)
 

src/pyflowx/examples/etl_pipeline.py

@@ -10,21 +10,19 @@ Demonstrates the core PyFlowX workflow:
 
 from __future__ import annotations
 
-from typing import List
-
 import pyflowx as px
 
 # --- task functions: pure, testable, no framework coupling ------------- #
 
 
-def extract_customers() -> List[dict]:
+def extract_customers() -> list[dict]:
     return [
         {"id": "C001", "name": "Alice"},
         {"id": "C002", "name": "Bob"},
     ]
 
 
-def extract_orders() -> List[dict]:
+def extract_orders() -> list[dict]:
     return [
         {"id": "O001", "customer_id": "C001", "amount": 150.0},
         {"id": "O002", "customer_id": "C002", "amount": 200.5},
@@ -33,18 +31,14 @@ def extract_orders() -> List[dict]:
 
 # Parameter names match dependency names → automatic injection.
 def transform(
-    extract_customers: List[dict],
-    extract_orders: List[dict],
-) -> List[dict]:
+    extract_customers: list[dict],
+    extract_orders: list[dict],
+) -> list[dict]:
     cmap = {c["id"]: c for c in extract_customers}
-    return [
-        {**o, "customer_name": cmap[o["customer_id"]]["name"]}
-        for o in extract_orders
-        if o["customer_id"] in cmap
-    ]
+    return [{**o, "customer_name": cmap[o["customer_id"]]["name"]} for o in extract_orders if o["customer_id"] in cmap]
 
 
-def load(transform: List[dict]) -> int:
+def load(transform: list[dict]) -> int:
     print(f"  loaded {len(transform)} records")
     return len(transform)
 
@@ -57,10 +51,10 @@ def main() -> None:
             px.TaskSpec(
                 "transform",
                 transform,
-                ("extract_customers", "extract_orders"),
+                depends_on=("extract_customers", "extract_orders"),
                 tags=("transform",),
             ),
-            px.TaskSpec("load", load, ("transform",), retries=1, tags=("load",)),
+            px.TaskSpec("load", load, depends_on=("transform",), retries=1, tags=("load",)),
         ]
     )
 
@@ -68,7 +62,7 @@ def main() -> None:
     print(graph.describe())
 
     print("\n=== Dry run (no execution) ===")
-    px.run(graph, strategy="sequential", dry_run=True)
+    _ = px.run(graph, strategy="sequential", dry_run=True)
 
     print("\n=== Sequential execution ===")
     report = px.run(graph, strategy="sequential")

src/pyflowx/examples/parallel_run.py

@@ -33,7 +33,7 @@ def main() -> None:
         [
             px.TaskSpec("fetch_a", fetch_a),
             px.TaskSpec("fetch_b", fetch_b),
-            px.TaskSpec("merge", merge, ("fetch_a", "fetch_b")),
+            px.TaskSpec("merge", merge, depends_on=("fetch_a", "fetch_b")),
         ]
     )
 

src/pyflowx/executors.py

@@ -19,7 +19,7 @@ import concurrent.futures
 import inspect
 import logging
 from datetime import datetime
-from typing import Any, Awaitable, Callable, Dict, List, Mapping, Optional, cast
+from typing import Any, Awaitable, Callable, Literal, Mapping, cast
 
 from .context import build_call_args, describe_injection
 from .errors import TaskFailedError, TaskTimeoutError
@@ -32,19 +32,17 @@ logger = logging.getLogger("pyflowx")
 
 # 观察者回调类型。
 EventCallback = Callable[[TaskEvent], None]
-
-# 策略选择字面量。
-Strategy = str  # "sequential" | "thread" | "async"
+Strategy = Literal["sequential", "thread", "async"]
 
 
-def _is_async_fn(spec: TaskSpec[object]) -> bool:
-    """判断 ``spec.fn`` 是否为协程函数。"""
-    return inspect.iscoroutinefunction(spec.fn)
+def _is_async_fn(spec: TaskSpec[Any]) -> bool:
+    """判断 ``spec.effective_fn`` 是否为协程函数。"""
+    return inspect.iscoroutinefunction(spec.effective_fn)
 
 
 def _emit(
-    on_event: Optional[EventCallback],
-    result: TaskResult[object],
+    on_event: EventCallback | None,
+    result: TaskResult[Any],
 ) -> None:
     """若注册了回调则触发一个观察者事件。"""
     if on_event is None:
@@ -60,9 +58,7 @@ def _emit(
     )
 
 
-def _log_retry(
-    spec: TaskSpec[object], attempts: int, max_attempts: int, exc: BaseException
-) -> None:
+def _log_retry(spec: TaskSpec[Any], attempts: int, max_attempts: int, exc: BaseException) -> None:
     """记录重试日志（sync 与 async 共享，便于测试覆盖）。"""
     logger.warning(
         "task %r failed (attempt %d/%d): %r; retrying",
@@ -73,10 +69,15 @@ def _log_retry(
     )
 
 
-def _finalize_failure(result: TaskResult[object], layer_idx: Optional[int]) -> None:
+def _finalize_failure(
+    result: TaskResult[Any],
+    layer_idx: int | None,
+    on_event: EventCallback | None = None,
+) -> None:
     """标记任务为 FAILED 并抛出 TaskFailedError。"""
     result.status = TaskStatus.FAILED
     result.finished_at = datetime.now()
+    _emit(on_event, result)
     raise TaskFailedError(
         task=result.spec.name,
         cause=result.error if result.error is not None else RuntimeError("unknown"),
@@ -86,12 +87,21 @@ def _finalize_failure(result: TaskResult[object], layer_idx: Optional[int]) -> N
 
 
 def _run_sync_with_retry(
-    spec: TaskSpec[object],
+    spec: TaskSpec[Any],
     context: Mapping[str, Any],
-    layer_idx: Optional[int],
-) -> TaskResult[object]:
+    layer_idx: int | None,
+    on_event: EventCallback | None = None,
+) -> TaskResult[Any]:
     """执行同步任务并带重试；返回填充好的 TaskResult。"""
-    result: TaskResult[object] = TaskResult(spec=spec)
+    result: TaskResult[Any] = TaskResult(spec=spec)
+
+    # 检查条件是否满足
+    if not spec.should_execute():
+        result.status = TaskStatus.SKIPPED
+        result.finished_at = datetime.now()
+        logger.info("task %r skipped (条件不满足)", spec.name)
+        return result
+
     result.started_at = datetime.now()
     max_attempts = spec.retries + 1
     args, kwargs = build_call_args(spec, context)
@@ -99,25 +109,34 @@ def _run_sync_with_retry(
     while True:
         result.attempts += 1
         try:
-            result.value = spec.fn(*args, **kwargs)
+            result.value = spec.effective_fn(*args, **kwargs)
             result.status = TaskStatus.SUCCESS
             result.finished_at = datetime.now()
             return result
-        except Exception as exc:  # noqa: BLE001 - 用户代码可能抛任何异常
+        except Exception as exc:
             result.error = exc
             if result.attempts >= max_attempts:
-                _finalize_failure(result, layer_idx)  # pragma: no cover
+                _finalize_failure(result, layer_idx, on_event)
             _log_retry(spec, result.attempts, max_attempts, exc)
     raise AssertionError("unreachable")  # pragma: no cover
 
 
 async def _run_async_with_retry(
-    spec: TaskSpec[object],
+    spec: TaskSpec[Any],
     context: Mapping[str, Any],
-    layer_idx: Optional[int],
-) -> TaskResult[object]:
+    layer_idx: int | None,
+    on_event: EventCallback | None = None,
+) -> TaskResult[Any]:
     """在事件循环上执行任务（同步或异步）并带重试。"""
-    result: TaskResult[object] = TaskResult(spec=spec)
+    result: TaskResult[Any] = TaskResult[Any](spec=spec)
+
+    # 检查条件是否满足
+    if not spec.should_execute():
+        result.status = TaskStatus.SKIPPED
+        result.finished_at = datetime.now()
+        logger.info("task %r skipped (条件不满足)", spec.name)
+        return result
+
     result.started_at = datetime.now()
     max_attempts = spec.retries + 1
     args, kwargs = build_call_args(spec, context)
@@ -127,7 +146,7 @@ async def _run_async_with_retry(
         result.attempts += 1
         try:
             if _is_async_fn(spec):
-                coro = cast(Awaitable[Any], spec.fn(*args, **kwargs))
+                coro = cast(Awaitable[Any], spec.effective_fn(*args, **kwargs))
                 if spec.timeout is not None:
                     result.value = await asyncio.wait_for(coro, timeout=spec.timeout)
                 else:
@@ -135,12 +154,10 @@ async def _run_async_with_retry(
             else:
                 # 将同步工作卸载到线程，保持事件循环存活。
                 def fn_call() -> Any:
-                    return spec.fn(*args, **kwargs)
+                    return spec.effective_fn(*args, **kwargs)
 
                 if spec.timeout is not None:
-                    result.value = await asyncio.wait_for(
-                        loop.run_in_executor(None, fn_call), timeout=spec.timeout
-                    )
+                    result.value = await asyncio.wait_for(loop.run_in_executor(None, fn_call), timeout=spec.timeout)
                 else:
                     result.value = await loop.run_in_executor(None, fn_call)
             result.status = TaskStatus.SUCCESS
@@ -149,18 +166,18 @@ async def _run_async_with_retry(
         except asyncio.TimeoutError:
             result.error = TaskTimeoutError(spec.name, spec.timeout or 0.0)
             if result.attempts >= max_attempts:
-                _finalize_failure(result, layer_idx)  # pragma: no cover
+                _finalize_failure(result, layer_idx, on_event)
             logger.warning(
                 "task %r timed out (attempt %d/%d); retrying",
                 spec.name,
                 result.attempts,
                 max_attempts,
             )
-        except Exception as exc:  # noqa: BLE001
+        except Exception as exc:
             result.error = exc
             if result.attempts >= max_attempts:
-                _finalize_failure(result, layer_idx)  # pragma: no cover
-            _log_retry(spec, result.attempts, max_attempts, exc)  # pragma: no cover
+                _finalize_failure(result, layer_idx, on_event)
+            _log_retry(spec, result.attempts, max_attempts, exc)
     raise AssertionError("unreachable")  # pragma: no cover
 
 
@@ -168,23 +185,21 @@ async def _run_async_with_retry(
 # 层驱动器
 # ---------------------------------------------------------------------- #
 def _build_context(
-    spec: TaskSpec[object],
+    spec: TaskSpec[Any],
     global_context: Mapping[str, Any],
 ) -> Mapping[str, Any]:
     """将全局上下文限制为本任务的依赖。"""
-    return {
-        dep: global_context[dep] for dep in spec.depends_on if dep in global_context
-    }
+    return {dep: global_context[dep] for dep in spec.depends_on if dep in global_context}
 
 
 def _execute_layer_sequential(
-    layer: List[str],
+    layer: list[str],
     graph: Graph,
-    context: Dict[str, Any],
+    context: dict[str, Any],
     report: RunReport,
     backend: StateBackend,
     layer_idx: int,
-    on_event: Optional[EventCallback],
+    on_event: EventCallback | None,
 ) -> None:
     """逐个运行某层的任务。"""
     for name in layer:
@@ -197,7 +212,7 @@ def _execute_layer_sequential(
             _emit(on_event, result)
             logger.info("task %r skipped (cached)", name)
             continue
-        result = _run_sync_with_retry(spec, _build_context(spec, context), layer_idx)
+        result = _run_sync_with_retry(spec, _build_context(spec, context), layer_idx, on_event)
         context[name] = result.value
         backend.save(name, result.value)
         report.results[name] = result
@@ -205,25 +220,23 @@ def _execute_layer_sequential(
 
 
 def _execute_layer_threaded(
-    layer: List[str],
+    layer: list[str],
     graph: Graph,
-    context: Dict[str, Any],
+    context: dict[str, Any],
     report: RunReport,
     backend: StateBackend,
     layer_idx: int,
-    on_event: Optional[EventCallback],
+    on_event: EventCallback | None,
     max_workers: int,
 ) -> None:
     """在线程池中并发运行某层的任务。"""
     # 先同步满足已缓存任务。
-    to_run: List[str] = []
+    to_run: list[str] = []
     for name in layer:
         if backend.has(name):
             cached = backend.get(name)
             context[name] = cached
-            result = TaskResult(
-                spec=graph.spec(name), status=TaskStatus.SKIPPED, value=cached
-            )
+            result = TaskResult(spec=graph.spec(name), status=TaskStatus.SKIPPED, value=cached)
             report.results[name] = result
             _emit(on_event, result)
         else:
@@ -233,12 +246,12 @@ def _execute_layer_threaded(
         return
 
     with concurrent.futures.ThreadPoolExecutor(max_workers=max_workers) as pool:
-        future_to_name: Dict[concurrent.futures.Future[TaskResult[object]], str] = {}
+        future_to_name: dict[concurrent.futures.Future[TaskResult[Any]], str] = {}
         for name in to_run:
             spec = graph.spec(name)
             # 为本任务快照上下文以避免竞态。
             task_ctx = _build_context(spec, context)
-            fut = pool.submit(_run_sync_with_retry, spec, task_ctx, layer_idx)
+            fut = pool.submit(_run_sync_with_retry, spec, task_ctx, layer_idx, on_event)
             future_to_name[fut] = name
 
         for fut in concurrent.futures.as_completed(future_to_name):
@@ -251,23 +264,21 @@ def _execute_layer_threaded(
 
 
 async def _execute_layer_async(
-    layer: List[str],
+    layer: list[str],
     graph: Graph,
-    context: Dict[str, Any],
+    context: dict[str, Any],
     report: RunReport,
     backend: StateBackend,
     layer_idx: int,
-    on_event: Optional[EventCallback],
+    on_event: EventCallback | None,
 ) -> None:
     """在事件循环上并发运行某层的任务。"""
-    to_run: List[str] = []
+    to_run: list[str] = []
     for name in layer:
         if backend.has(name):
             cached = backend.get(name)
             context[name] = cached
-            result = TaskResult(
-                spec=graph.spec(name), status=TaskStatus.SKIPPED, value=cached
-            )
+            result = TaskResult(spec=graph.spec(name), status=TaskStatus.SKIPPED, value=cached)
             report.results[name] = result
             _emit(on_event, result)
         else:
@@ -280,7 +291,7 @@ async def _execute_layer_async(
     for name in to_run:
         spec = graph.spec(name)
         task_ctx = _build_context(spec, context)
-        coros.append(_run_async_with_retry(spec, task_ctx, layer_idx))
+        coros.append(_run_async_with_retry(spec, task_ctx, layer_idx, on_event))
 
     results = await asyncio.gather(*coros)
     for name, result in zip(to_run, results):
@@ -293,14 +304,56 @@ async def _execute_layer_async(
 # ---------------------------------------------------------------------- #
 # 公共 API
 # ---------------------------------------------------------------------- #
+def _make_verbose_callback(
+    on_event: EventCallback | None,
+) -> EventCallback | None:
+    """包装 on_event 回调, 在 verbose 模式下打印任务生命周期.
+
+    Parameters
+    ----------
+    on_event : EventCallback | None
+        用户提供的原始回调, 若为 None 则仅打印.
+
+    Returns
+    -------
+    EventCallback | None
+        包装后的回调.
+    """
+
+    def _verbose_callback(event: TaskEvent) -> None:
+        # 先打印生命周期信息
+        dur = f" ({event.duration:.3f}s)" if event.duration is not None else ""
+        if event.status == TaskStatus.RUNNING:  # pragma: no cover
+            print(f"[verbose] 任务 {event.task!r} 开始执行...", flush=True)
+        elif event.status == TaskStatus.SUCCESS:
+            print(f"[verbose] 任务 {event.task!r} 成功{dur}", flush=True)
+        elif event.status == TaskStatus.FAILED:
+            err = f": {event.error}" if event.error else ""
+            print(
+                f"[verbose] 任务 {event.task!r} 失败{dur} (尝试 {event.attempts} 次){err}",
+                flush=True,
+            )
+        elif event.status == TaskStatus.SKIPPED:  # pragma: no branch
+            print(f"[verbose] 任务 {event.task!r} 跳过", flush=True)
+        else:  # pragma: no cover
+            # 不可达: 执行器只发出 RUNNING/SUCCESS/FAILED/SKIPPED 事件
+            pass
+        # 再调用用户回调
+        if on_event is not None:
+            on_event(event)
+
+    return _verbose_callback
+
+
 def run(
     graph: Graph,
     strategy: Strategy = "sequential",
     *,
-    max_workers: Optional[int] = None,
+    max_workers: int | None = None,
     dry_run: bool = False,
-    on_event: Optional[EventCallback] = None,
-    state: Optional[StateBackend] = None,
+    verbose: bool = False,
+    on_event: EventCallback | None = None,
+    state: StateBackend | None = None,
 ) -> RunReport:
     """执行图并返回 :class:`RunReport`。
 
@@ -309,12 +362,16 @@ def run(
     graph:
         待执行的已校验 :class:`Graph`。
     strategy:
-        ``"sequential"``（默认）、``"thread"`` 或 ``"async"``。
+        执行策略, 接受 :class:`Strategy` 枚举成员或字符串
+        (``"sequential"`` / ``"thread"`` / ``"async"``). 默认 ``Strategy.SEQUENTIAL``.
     max_workers:
         ``"thread"`` 的线程池大小。默认 ``min(32, len(layer))``。
     dry_run:
         若为 ``True``，打印执行计划（层 + 注入）并返回空报告，不执行
         任何任务。
+    verbose:
+        若为 ``True``, 打印任务生命周期 (开始/成功/失败/跳过) 到 stdout.
+        注意: subprocess 命令的输出由 :class:`TaskSpec` 的 ``verbose`` 字段控制.
     on_event:
         可选回调，在每次状态转换时调用。
     state:
@@ -329,11 +386,6 @@ def run(
         任何任务耗尽重试后仍失败时。运行在失败层中止；后续层的任务
         不会被执行。
     """
-    if strategy not in ("sequential", "thread", "async"):
-        raise ValueError(
-            f"unknown strategy {strategy!r}; expected 'sequential', 'thread', or 'async'."
-        )
-
     graph.validate()
     layers = graph.layers()
 
@@ -341,19 +393,20 @@ def run(
         _print_dry_run(graph, layers)
         return RunReport(success=True)
 
+    # verbose 模式下包装事件回调
+    effective_callback: EventCallback | None = _make_verbose_callback(on_event) if verbose else on_event
+
     backend = resolve_backend(state)
     report = RunReport()
-    context: Dict[str, Any] = {}
+    context: dict[str, Any] = {}
 
     try:
         if strategy == "sequential":
-            _drive_sequential(graph, layers, context, report, backend, on_event)
+            _drive_sequential(graph, layers, context, report, backend, effective_callback)
         elif strategy == "thread":
-            _drive_threaded(
-                graph, layers, context, report, backend, on_event, max_workers
-            )
+            _drive_threaded(graph, layers, context, report, backend, effective_callback, max_workers)
         else:
-            _drive_async(graph, layers, context, report, backend, on_event)
+            _drive_async(graph, layers, context, report, backend, effective_callback)
     except TaskFailedError:
         report.success = False
         raise
@@ -361,7 +414,7 @@ def run(
     return report
 
 
-def _print_dry_run(graph: Graph, layers: List[List[str]]) -> None:
+def _print_dry_run(graph: Graph, layers: list[list[str]]) -> None:
     """打印执行计划但不运行任何任务。"""
     print(f"Dry run: {len(graph)} tasks, {len(layers)} layers")
     for idx, layer in enumerate(layers, 1):
@@ -372,11 +425,11 @@ def _print_dry_run(graph: Graph, layers: List[List[str]]) -> None:
 
 def _drive_sequential(
     graph: Graph,
-    layers: List[List[str]],
-    context: Dict[str, Any],
+    layers: list[list[str]],
+    context: dict[str, Any],
     report: RunReport,
     backend: StateBackend,
-    on_event: Optional[EventCallback],
+    on_event: EventCallback | None,
 ) -> None:
     for idx, layer in enumerate(layers, 1):
         _execute_layer_sequential(layer, graph, context, report, backend, idx, on_event)
@@ -384,40 +437,36 @@ def _drive_sequential(
 
 def _drive_threaded(
     graph: Graph,
-    layers: List[List[str]],
-    context: Dict[str, Any],
+    layers: list[list[str]],
+    context: dict[str, Any],
     report: RunReport,
     backend: StateBackend,
-    on_event: Optional[EventCallback],
-    max_workers: Optional[int],
+    on_event: EventCallback | None,
+    max_workers: int | None,
 ) -> None:
     for idx, layer in enumerate(layers, 1):
         workers = max_workers or max(1, min(32, len(layer)))
-        _execute_layer_threaded(
-            layer, graph, context, report, backend, idx, on_event, workers
-        )
+        _execute_layer_threaded(layer, graph, context, report, backend, idx, on_event, workers)
 
 
 def _drive_async(
     graph: Graph,
-    layers: List[List[str]],
-    context: Dict[str, Any],
+    layers: list[list[str]],
+    context: dict[str, Any],
     report: RunReport,
     backend: StateBackend,
-    on_event: Optional[EventCallback],
+    on_event: EventCallback | None,
 ) -> None:
     asyncio.run(_async_drive(graph, layers, context, report, backend, on_event))
 
 
 async def _async_drive(
     graph: Graph,
-    layers: List[List[str]],
-    context: Dict[str, Any],
+    layers: list[list[str]],
+    context: dict[str, Any],
     report: RunReport,
     backend: StateBackend,
-    on_event: Optional[EventCallback],
+    on_event: EventCallback | None,
 ) -> None:
     for idx, layer in enumerate(layers, 1):
-        await _execute_layer_async(
-            layer, graph, context, report, backend, idx, on_event
-        )
+        await _execute_layer_async(layer, graph, context, report, backend, idx, on_event)

src/pyflowx/graph.py

@@ -1,21 +1,21 @@
 """DAG 构建、校验、分层与可视化。
 
 使用标准库的 :mod:`graphlib`（3.9+）或 :mod:`graphlib_backport`（3.8）
-进行拓扑排序。图以增量方式构建并即时校验，使配置错误在构建时（而非
-执行时）快速失败。
+进行拓扑排序。图以增量方式构建并即时校验，使配置错误在构建时（而非执行时）快速失败。
 """
 
 from __future__ import annotations
 
 import sys
-from typing import Dict, Iterable, List, Mapping, Sequence, Set, Tuple
+from dataclasses import dataclass, field
+from typing import Any, Iterable, Mapping, Sequence
 
 from .errors import CycleError, DuplicateTaskError, MissingDependencyError
 from .task import TaskSpec
 
 # graphlib 自 3.9 起进入标准库；3.8 回退到 backport。
 if sys.version_info >= (3, 9):  # pragma: no cover
-    import graphlib
+    import graphlib  # pyright: ignore[reportUnreachable]
 
     _TopologicalSorter = graphlib.TopologicalSorter
 else:  # pragma: no cover
@@ -24,6 +24,7 @@ else:  # pragma: no cover
     _TopologicalSorter = graphlib.TopologicalSorter  # pragma: no cover
 
 
+@dataclass(frozen=True)
 class Graph:
     """校验后不可变的有向无环任务图。
 
@@ -35,30 +36,28 @@ class Graph:
     这使图可安全重复运行并在线程间共享。
     """
 
-    def __init__(self) -> None:
-        self._specs: Dict[str, TaskSpec[object]] = {}
-        # 任务 -> 其直接依赖（前驱）。
-        self._deps: Dict[str, Tuple[str, ...]] = {}
+    specs: dict[str, TaskSpec[Any]] = field(default_factory=dict)
+    deps: dict[str, tuple[str, ...]] = field(default_factory=dict)
 
     # ------------------------------------------------------------------ #
     # 构建
     # ------------------------------------------------------------------ #
-    def add(self, spec: TaskSpec[object]) -> "Graph":
+    def add(self, spec: TaskSpec[Any]) -> Graph:
         """注册一个任务 spec，并即时校验。
 
         返回 ``self`` 以支持链式调用，但推荐入口是 :meth:`from_specs`，
         它会整批校验（允许单次调用中的前向引用）。
         """
-        if spec.name in self._specs:
+        if spec.name in self.specs:
             raise DuplicateTaskError(spec.name)
-        self._specs[spec.name] = spec
-        self._deps[spec.name] = spec.depends_on
+        self.specs[spec.name] = spec
+        self.deps[spec.name] = spec.depends_on
         # 为增量 API 即时检查重名与缺失依赖。
         self._validate_references()
         return self
 
     @classmethod
-    def from_specs(cls, specs: Iterable[TaskSpec[object]]) -> "Graph":
+    def from_specs(cls, specs: Iterable[TaskSpec[Any]]) -> Graph:
         """从可迭代的 task spec 构建图。
 
         先收集所有 spec，再统一校验。这意味着任务可以引用*后出现*的
@@ -66,10 +65,10 @@ class Graph:
         """
         graph = cls()
         for spec in specs:
-            if spec.name in graph._specs:
+            if spec.name in graph.specs:
                 raise DuplicateTaskError(spec.name)
-            graph._specs[spec.name] = spec
-            graph._deps[spec.name] = spec.depends_on
+            graph.specs[spec.name] = spec
+            graph.deps[spec.name] = spec.depends_on
         graph._validate_references()
         graph.validate()
         return graph
@@ -79,9 +78,9 @@ class Graph:
     # ------------------------------------------------------------------ #
     def _validate_references(self) -> None:
         """确保每个依赖名都存在于图中。"""
-        for name, deps in self._deps.items():
+        for name, deps in self.deps.items():
             for dep in deps:
-                if dep not in self._specs:
+                if dep not in self.specs:
                     raise MissingDependencyError(name, dep)
 
     def validate(self) -> None:
@@ -91,7 +90,7 @@ class Graph:
         依赖存在性由 :meth:`_validate_references` 检查。
         """
         self._validate_references()
-        sorter = _TopologicalSorter(self._deps)
+        sorter = _TopologicalSorter(self.deps)
         try:
             # prepare() 在有环时抛出 CycleError；此处不需要
             # static_order() 的结果，仅利用其校验副作用。
@@ -105,23 +104,23 @@ class Graph:
     # 内省
     # ------------------------------------------------------------------ #
     @property
-    def names(self) -> List[str]:
+    def names(self) -> list[str]:
         """所有已注册任务名（按插入顺序）。"""
-        return list(self._specs.keys())
+        return list(self.specs.keys())
 
-    def spec(self, name: str) -> TaskSpec[object]:
+    def spec(self, name: str) -> TaskSpec[Any]:
         """返回 ``name`` 的 spec；不存在则 ``KeyError``。"""
-        return self._specs[name]
+        return self.specs[name]
 
-    def dependencies(self, name: str) -> Tuple[str, ...]:
+    def dependencies(self, name: str) -> tuple[str, ...]:
         """``name`` 的直接前驱。"""
-        return self._deps[name]
+        return self.deps[name]
 
-    def all_specs(self) -> Mapping[str, TaskSpec[object]]:
+    def all_specs(self) -> Mapping[str, TaskSpec[Any]]:
         """name -> spec 的只读视图。"""
-        return self._specs
+        return self.specs
 
-    def layers(self) -> List[List[str]]:
+    def layers(self) -> list[list[str]]:
         """将任务分组为可并行执行的层（Kahn 算法）。
 
         同层任务无相互依赖，可并发执行。层按执行顺序返回。
@@ -129,8 +128,8 @@ class Graph:
         图有环时抛出 :class:`~pyflowx.errors.CycleError`。
         """
         self.validate()
-        sorter = _TopologicalSorter(self._deps)
-        result: List[List[str]] = []
+        sorter = _TopologicalSorter(self.deps)
+        result: list[list[str]] = []
         # ``get_ready`` + ``done`` 每次给出一层，正好是并行执行所需的分组。
         sorter.prepare()
         while sorter.is_active():
@@ -145,56 +144,60 @@ class Graph:
     # ------------------------------------------------------------------ #
     # 子图 / 标签过滤
     # ------------------------------------------------------------------ #
-    def subgraph(self, tags: Iterable[str]) -> "Graph":
+    def subgraph(self, tags: Iterable[str]) -> Graph:
         """返回仅包含匹配任意标签的任务的新图。
 
         依赖会被修剪，仅保留被保留任务之间的边；指向被丢弃任务的边
         会被移除（被保留的任务不再等待它们）。用于调试时运行大型
         DAG 的切片。
         """
-        wanted: Set[str] = set(tags)
-        kept: List[TaskSpec[object]] = []
-        for spec in self._specs.values():
+        wanted: set[str] = set(tags)
+        kept: list[TaskSpec[Any]] = []
+        for spec in self.specs.values():
             if wanted & set(spec.tags):
                 pruned_deps = tuple(
-                    d
-                    for d in spec.depends_on
-                    if d in self._specs and (wanted & set(self._specs[d].tags))
+                    d for d in spec.depends_on if d in self.specs and (wanted & set(self.specs[d].tags))
                 )
                 kept.append(
-                    TaskSpec(
+                    TaskSpec[Any](
                         name=spec.name,
                         fn=spec.fn,
+                        cmd=spec.cmd,
                         depends_on=pruned_deps,
                         args=spec.args,
                         kwargs=spec.kwargs,
                         retries=spec.retries,
                         timeout=spec.timeout,
                         tags=spec.tags,
+                        conditions=spec.conditions,
+                        cwd=spec.cwd,
                     )
                 )
         return Graph.from_specs(kept)
 
-    def subgraph_by_names(self, names: Iterable[str]) -> "Graph":
+    def subgraph_by_names(self, names: Iterable[str]) -> Graph:
         """返回限定于 ``names`` 的新图（边已修剪）。"""
-        wanted: Set[str] = set(names)
+        wanted: set[str] = set(names)
         for n in wanted:
-            if n not in self._specs:
+            if n not in self.specs:
                 raise KeyError(f"Unknown task name: {n!r}")
-        kept: List[TaskSpec[object]] = []
-        for spec in self._specs.values():
+        kept: list[TaskSpec[Any]] = []
+        for spec in self.specs.values():
             if spec.name in wanted:
                 pruned_deps = tuple(d for d in spec.depends_on if d in wanted)
                 kept.append(
-                    TaskSpec(
+                    TaskSpec[Any](
                         name=spec.name,
                         fn=spec.fn,
+                        cmd=spec.cmd,
                         depends_on=pruned_deps,
                         args=spec.args,
                         kwargs=spec.kwargs,
                         retries=spec.retries,
                         timeout=spec.timeout,
                         tags=spec.tags,
+                        conditions=spec.conditions,
+                        cwd=spec.cwd,
                     )
                 )
         return Graph.from_specs(kept)
@@ -211,13 +214,11 @@ class Graph:
         valid = {"TD", "TB", "BT", "LR", "RL"}
         orientation = orientation.upper()
         if orientation not in valid:
-            raise ValueError(
-                f"Invalid orientation {orientation!r}; expected one of {sorted(valid)}."
-            )
-        lines: List[str] = [f"graph {orientation}"]
-        for name in self._specs:
+            raise ValueError(f"Invalid orientation {orientation!r}; expected one of {sorted(valid)}.")
+        lines: list[str] = [f"graph {orientation}"]
+        for name in self.specs:
             lines.append(f'    {name}["{name}"]')
-        for name, deps in self._deps.items():
+        for name, deps in self.deps.items():
             for dep in deps:
                 lines.append(f"    {dep} --> {name}")
         return "\n".join(lines) + "\n"
@@ -227,16 +228,16 @@ class Graph:
     # ------------------------------------------------------------------ #
     def describe(self) -> str:
         """用于调试的人类可读多行摘要。"""
-        out: List[str] = [f"Graph(tasks={len(self._specs)})"]
+        out: list[str] = [f"Graph(tasks={len(self.specs)})"]
         for layer_idx, layer in enumerate(self.layers(), 1):
             out.append(f"  Layer {layer_idx}: {layer}")
         return "\n".join(out)
 
     def __repr__(self) -> str:
-        return f"Graph(tasks={len(self._specs)})"
+        return f"Graph(tasks={len(self.specs)})"
 
     def __len__(self) -> int:
-        return len(self._specs)
+        return len(self.specs)
 
-    def __contains__(self, name: object) -> bool:
-        return name in self._specs
+    def __contains__(self, name: Any) -> bool:
+        return name in self.specs

src/pyflowx/report.py

@@ -7,7 +7,7 @@
 from __future__ import annotations
 
 from dataclasses import dataclass, field
-from typing import Any, Dict, Iterator, List
+from typing import Any, Iterator
 
 from .task import TaskResult, TaskStatus
 
@@ -24,7 +24,7 @@ class RunReport:
         当且仅当所有非跳过任务都以 ``SUCCESS`` 结束时为 ``True``。
     """
 
-    results: Dict[str, TaskResult[object]] = field(default_factory=dict)
+    results: dict[str, TaskResult[Any]] = field(default_factory=dict)
     success: bool = True
 
     # ---- 类型化访问 --------------------------------------------------- #
@@ -36,11 +36,11 @@ class RunReport:
         """
         return self.results[name].value
 
-    def result_of(self, name: str) -> TaskResult[object]:
+    def result_of(self, name: str) -> TaskResult[Any]:
         """返回 ``name`` 的完整 :class:`TaskResult`。"""
         return self.results[name]
 
-    def __contains__(self, name: object) -> bool:
+    def __contains__(self, name: Any) -> bool:
         return name in self.results
 
     def __iter__(self) -> Iterator[str]:
@@ -50,9 +50,9 @@ class RunReport:
         return len(self.results)
 
     # ---- 汇总 --------------------------------------------------------- #
-    def summary(self) -> Dict[str, Any]:
+    def summary(self) -> dict[str, Any]:
         """用于日志/仪表盘的紧凑统计字典。"""
-        counts: Dict[str, int] = {}
+        counts: dict[str, int] = {}
         total_duration = 0.0
         for r in self.results.values():
             counts[r.status.value] = counts.get(r.status.value, 0) + 1
@@ -65,19 +65,15 @@ class RunReport:
             "total_duration_seconds": round(total_duration, 6),
         }
 
-    def failed_tasks(self) -> List[str]:
+    def failed_tasks(self) -> list[str]:
         """以 FAILED 状态结束的任务名列表。"""
-        return [
-            name for name, r in self.results.items() if r.status == TaskStatus.FAILED
-        ]
+        return [name for name, r in self.results.items() if r.status == TaskStatus.FAILED]
 
     def describe(self) -> str:
         """用于调试的人类可读多行报告。"""
-        lines: List[str] = [f"RunReport(success={self.success})"]
+        lines: list[str] = [f"RunReport(success={self.success})"]
         for name, r in self.results.items():
             dur = f"{r.duration:.3f}s" if r.duration is not None else "-"
             err = f" error={r.error!r}" if r.error else ""
-            lines.append(
-                f"  {name}: {r.status.value} ({dur} attempts={r.attempts}){err}"
-            )
+            lines.append(f"  {name}: {r.status.value} ({dur} attempts={r.attempts}){err}")
         return "\n".join(lines)

src/pyflowx/runner.py

@@ -0,0 +1,261 @@
+"""命令行运行器：根据用户输入执行对应的任务流图.
+
+verbose 模式
+------------
+``CliRunner`` 默认 ``verbose=True``, 会:
+1. 打印任务生命周期 (开始/成功/失败/跳过) 到 stdout
+2. 对 ``cmd`` 类任务, 显示执行的命令及其标准输出/标准错误
+
+可通过构造参数 ``verbose=False`` 或命令行 ``--quiet`` 关闭.
+"""
+
+from __future__ import annotations
+
+import argparse
+import enum
+import sys
+from dataclasses import dataclass, field, replace
+from typing import Any, Sequence, get_args
+
+from .errors import PyFlowXError
+from .executors import Strategy, run
+from .graph import Graph
+from .task import TaskSpec
+
+__all__ = ["CliExitCode", "CliRunner"]
+
+
+class CliExitCode(enum.IntEnum):
+    """CliRunner 退出码."""
+
+    SUCCESS = 0
+    FAILURE = 1
+    INTERRUPTED = 130  # 与 POSIX 信号中断一致
+
+
+def _apply_verbose_to_graph(graph: Graph, verbose: bool) -> Graph:
+    """创建新图, 其中所有 TaskSpec 的 verbose 字段被设置为指定值.
+
+    使用 ``dataclasses.replace`` 在不可变的 TaskSpec 上创建带 verbose 标记的副本.
+    依赖关系、标签等元数据全部保留.
+
+    Parameters
+    ----------
+    graph : Graph
+        原始图.
+    verbose : bool
+        要设置的 verbose 值.
+
+    Returns
+    -------
+    Graph
+        所有 spec 的 verbose 字段已更新的新图.
+    """
+    new_specs: list[TaskSpec[Any]] = []
+    for spec in graph.all_specs().values():
+        if spec.verbose == verbose:
+            new_specs.append(spec)
+        else:
+            new_specs.append(replace(spec, verbose=verbose))
+    return Graph.from_specs(new_specs)
+
+
+@dataclass(frozen=True)
+class CliRunner:
+    """命令行运行器: 根据用户输入执行对应的任务流图.
+
+    将命令名映射到 Graph 实例.
+    通过 ``sys.argv`` 解析用户输入的命令, 执行对应的图.
+
+    Parameters
+    ----------
+    strategy : str | Strategy
+        默认执行策略 (``Strategy.SEQUENTIAL`` / ``Strategy.THREAD`` /
+        ``Strategy.ASYNC`` 或对应字符串). 可被命令行 ``--strategy`` 覆盖.
+    verbose : bool
+        是否显示详细执行过程. ``True`` 时打印任务生命周期和 subprocess 输出.
+        默认 ``True``. 可被命令行 ``--quiet`` 关闭.
+    **graphs : Graph
+        命令名到图的映射. 每个 key 是一个命令名, value 是对应的
+        :class:`~pyflowx.graph.Graph`.
+
+    Examples
+    --------
+    基本用法::
+
+        runner = px.CliRunner(
+            clean=px.Graph.from_specs(
+                [
+                    px.TaskSpec("cargo_clean", cmd=["cargo", "clean"]),
+                ]
+            ),
+            build=px.Graph.from_specs(
+                [
+                    px.TaskSpec("uv_build", cmd=["uv", "build"]),
+                ]
+            ),
+        )
+        runner.run()  # 解析 sys.argv
+
+    指定策略与描述::
+
+        runner = px.CliRunner(
+            strategy=px.Strategy.THREAD,
+        )
+        runner.run(["test", "--strategy", "sequential"])
+    """
+
+    graphs: dict[str, Graph] = field(default_factory=dict)
+    strategy: Strategy = field(default="sequential")
+    description: str = field(default_factory=str)
+    verbose: bool = field(default_factory=lambda: True)
+
+    def __post_init__(self) -> None:
+        if not self.graphs:
+            raise ValueError("CliRunner 至少需要一个命令 (通过关键字参数提供)")
+
+    # ------------------------------------------------------------------ #
+    # 内省
+    # ------------------------------------------------------------------ #
+    @property
+    def commands(self) -> list[str]:
+        """可用的命令列表 (按插入顺序)."""
+        return list(self.graphs.keys())
+
+    # ------------------------------------------------------------------ #
+    # 参数解析
+    # ------------------------------------------------------------------ #
+    def _prog_name(self) -> str:
+        """从 sys.argv[0] 推导程序名."""
+        import os
+
+        return os.path.basename(sys.argv[0]) if sys.argv else "pyflowx"
+
+    def create_parser(self) -> argparse.ArgumentParser:
+        """创建参数解析器.
+
+        子类可覆盖此方法以添加自定义参数. 覆盖时应保留 ``command``
+        位置参数与 ``--strategy`` / ``--dry-run`` / ``--list`` / ``--quiet``
+        选项, 否则 :meth:`run` 的默认逻辑可能失效.
+
+        Returns
+        -------
+        argparse.ArgumentParser
+            新创建的参数解析器实例.
+        """
+        parser = argparse.ArgumentParser(
+            prog=self._prog_name(),
+            description=self.description or "PyFlowX CLI Runner",
+            formatter_class=argparse.RawDescriptionHelpFormatter,
+            epilog=self._format_commands_help(),
+        )
+        _ = parser.add_argument(
+            "command",
+            nargs="?",
+            help="要执行的命令",
+        )
+        _ = parser.add_argument(
+            "--strategy",
+            choices=list(get_args(Strategy)),
+            default=self.strategy,
+            help="执行策略 (默认: %(default)s)",
+        )
+        _ = parser.add_argument(
+            "--dry-run",
+            action="store_true",
+            help="只打印执行计划, 不实际运行",
+        )
+        _ = parser.add_argument(
+            "--list",
+            action="store_true",
+            help="列出所有可用命令",
+        )
+        _ = parser.add_argument(
+            "--quiet",
+            action="store_true",
+            help="静默模式, 不显示执行过程 (覆盖默认 verbose)",
+        )
+        return parser
+
+    def _format_commands_help(self) -> str:
+        """格式化命令帮助文本."""
+        return "可用命令:\n" + " | ".join(self.graphs.keys())
+
+    # ------------------------------------------------------------------ #
+    # 执行
+    # ------------------------------------------------------------------ #
+    def run(self, args: Sequence[str] | None = None) -> int:
+        """解析参数并执行对应的图.
+
+        Parameters
+        ----------
+        args : Sequence[str] | None
+            参数列表, 默认使用 ``sys.argv[1:]``.
+
+        Returns
+        -------
+        int
+            退出码 (0 成功, 1 失败, 130 中断).
+
+        Raises
+        ------
+        SystemExit
+            当 argparse 无法解析参数时 (与标准 argparse 行为一致).
+        """
+        parser = self.create_parser()
+        parsed = parser.parse_args(args)
+
+        # --list: 列出命令
+        if parsed.list:
+            print(self._format_commands_help())
+            return CliExitCode.SUCCESS.value
+
+        # 无命令: 显示帮助
+        if not parsed.command:
+            parser.print_help()
+            return CliExitCode.FAILURE.value
+
+        # 验证命令
+        if parsed.command not in self.graphs:
+            available = ", ".join(self.graphs.keys())
+            print(
+                f"错误: 未知命令 {parsed.command!r} (可用命令: {available})",
+                file=sys.stderr,
+            )
+            return CliExitCode.FAILURE.value
+
+        # 确定是否 verbose: --quiet 覆盖默认值
+        verbose = self.verbose and not parsed.quiet
+
+        # 对图应用 verbose 设置 (重建带 verbose 标记的 spec)
+        graph = self.graphs[parsed.command]
+        if verbose:
+            graph = _apply_verbose_to_graph(graph, verbose=True)
+
+        # 执行对应的图
+        try:
+            report = run(
+                graph,
+                strategy=parsed.strategy,
+                dry_run=parsed.dry_run,
+                verbose=verbose,
+            )
+            return CliExitCode.SUCCESS.value if report.success else CliExitCode.FAILURE.value
+        except KeyboardInterrupt:
+            print("\n操作已取消", file=sys.stderr)
+            return CliExitCode.INTERRUPTED.value
+        except PyFlowXError as e:
+            print(f"错误: {e}", file=sys.stderr)
+            return CliExitCode.FAILURE.value
+
+    def run_cli(self, args: Sequence[str] | None = None) -> None:
+        """运行并以退出码退出进程.
+
+        作为 CLI 工具运行时的入口点, 等价于 ``sys.exit(self.run(args))``.
+
+        Parameters
+        ----------
+        args : Sequence[str] | None
+            参数列表, 默认使用 ``sys.argv[1:]``.
+        """
+        sys.exit(self.run(args))

src/pyflowx/storage.py

@@ -17,9 +17,9 @@
 from __future__ import annotations
 
 import json
-import os
 from abc import ABC, abstractmethod
-from typing import Any, Dict, Mapping, Optional
+from pathlib import Path
+from typing import Any, Mapping
 
 from .errors import StorageError
 
@@ -52,7 +52,7 @@ class MemoryBackend(StateBackend):
     """进程内 dict 后端。进程退出即丢失。"""
 
     def __init__(self) -> None:
-        self._store: Dict[str, Any] = {}
+        self._store: dict[str, Any] = {}
 
     def load(self) -> Mapping[str, Any]:
         return dict(self._store)
@@ -79,16 +79,16 @@ class JSONBackend(StateBackend):
     """
 
     def __init__(self, path: str) -> None:
-        self._path = path
-        self._store: Dict[str, Any] = {}
+        self._path: str = path
+        self._store: dict[str, Any] = {}
         self._load()
 
     def _load(self) -> None:
-        if not os.path.exists(self._path):
+        if not Path(self._path).exists():
             return
         try:
-            with open(self._path, "r", encoding="utf-8") as fh:
-                data = json.load(fh)
+            with open(self._path, encoding="utf-8") as fh:
+                data: Any = json.load(fh)
             if isinstance(data, dict):
                 self._store = data
         except (OSError, json.JSONDecodeError) as exc:
@@ -99,7 +99,8 @@ class JSONBackend(StateBackend):
         try:
             with open(tmp, "w", encoding="utf-8") as fh:
                 json.dump(self._store, fh, ensure_ascii=False, indent=2)
-            os.replace(tmp, self._path)
+
+            _ = Path(tmp).replace(Path(self._path))
         except (OSError, TypeError) as exc:
             raise StorageError(f"cannot write state file {self._path!r}", exc) from exc
 
@@ -109,11 +110,9 @@ class JSONBackend(StateBackend):
     def save(self, name: str, value: Any) -> None:
         # 在修改内存状态前先校验可序列化性。
         try:
-            json.dumps(value)
+            _ = json.dumps(value)
         except (TypeError, ValueError) as exc:
-            raise StorageError(
-                f"result of task {name!r} is not JSON-serialisable", exc
-            ) from exc
+            raise StorageError(f"result of task {name!r} is not JSON-serialisable", exc) from exc
         self._store[name] = value
         self._flush()
 
@@ -128,6 +127,6 @@ class JSONBackend(StateBackend):
         self._flush()
 
 
-def resolve_backend(backend: Optional[StateBackend]) -> StateBackend:
+def resolve_backend(backend: StateBackend | None) -> StateBackend:
     """返回 ``backend``；为 ``None`` 时返回新的 :class:`MemoryBackend`。"""
     return backend if backend is not None else MemoryBackend()

src/pyflowx/task.py

@@ -15,21 +15,22 @@
 * ``TaskStatus`` 是封闭枚举；执行器绝不发明临时字符串。
 """
 
-from __future__ import annotations
-
 from dataclasses import dataclass, field
 from datetime import datetime
 from enum import Enum
+from pathlib import Path
 from typing import (
     Any,
     Callable,
     Coroutine,
     Generic,
+    List,
     Mapping,
     Optional,
     Tuple,
     TypeVar,
     Union,
+    cast,
 )
 
 T = TypeVar("T")
@@ -44,6 +45,16 @@ TaskFn = Union[
 # 单任务类型由函数签名本身保留。
 Context = Mapping[str, Any]
 
+# 命令类型支持
+TaskCmd = Union[
+    List[str],  # 命令列表, 如 ["ls", "-la"]
+    str,  # shell 命令字符串
+    Callable[..., Any],  # Python 函数
+]
+
+# 条件判断函数类型
+Condition = Callable[[], bool]
+
 
 class TaskStatus(Enum):
     """任务在单次运行内的生命周期状态。"""
@@ -66,6 +77,13 @@ class TaskSpec(Generic[T]):
     fn:
         待执行的可调用对象，可为同步或异步。其参数名驱动自动上下文
         注入（见 :mod:`pyflowx.context`）。
+        若提供 ``cmd`` 参数，则此参数会被忽略。
+    cmd:
+        命令列表或 shell 字符串，支持三种形态：
+        - ``list[str]``: 命令及参数列表，如 ``["ls", "-la"]``
+        - ``str``: shell 命令字符串，如 ``"pip freeze > requirements.txt"``
+        - ``Callable``: Python 函数，与 ``fn`` 参数等效
+        若提供此参数，会自动包装为执行函数，覆盖 ``fn`` 参数。
     depends_on:
         必须先完成才能运行本任务的任务名列表。顺序无关；框架会做
         拓扑排序。
@@ -83,16 +101,38 @@ class TaskSpec(Generic[T]):
         取消 worker future。
     tags:
         自由标签，供 :meth:`Graph.subgraph` 做选择性执行与调试。
+    conditions:
+        条件判断函数列表，只有所有条件都返回 ``True`` 时才执行任务。
+        若任一条件返回 ``False``，任务会被标记为 SKIPPED。
+        用于平台判断、环境变量检查等场景。
+    cwd:
+        命令执行的工作目录，仅在使用 ``cmd`` 参数时有效。
+        ``None`` 表示当前目录。
+    verbose:
+        是否在命令执行时显示详细输出。``True`` 时会打印执行的命令
+        及其标准输出/标准错误。仅在使用 ``cmd`` 参数时有效。
+        ``False`` 时静默捕获输出（失败时仍会包含在错误信息中）。
+    skip_if_missing:
+        仅对 ``cmd`` 为 ``list[str]`` 的任务有效。``True`` 时自动检查
+        命令是否存在（通过 :func:`shutil.which`），不存在则跳过任务
+        （标记为 SKIPPED）而非失败。适用于构建工具场景，避免因未安装
+        某些工具（如 maturin、tox）而导致整个图执行失败。
+        对于 ``str`` (shell) 和 ``Callable`` 类型的 ``cmd``，此参数无效。
     """
 
     name: str
-    fn: TaskFn[T]
+    fn: Optional[TaskFn[T]] = None
+    cmd: Optional[TaskCmd] = None
     depends_on: Tuple[str, ...] = ()
     args: Tuple[Any, ...] = ()
     kwargs: Mapping[str, Any] = field(default_factory=dict)
     retries: int = 0
     timeout: Optional[float] = None
     tags: Tuple[str, ...] = ()
+    conditions: Tuple[Condition, ...] = ()
+    cwd: Optional[Path] = None
+    verbose: bool = False
+    skip_if_missing: bool = True
 
     def __post_init__(self) -> None:
         if not self.name:
@@ -103,6 +143,154 @@ class TaskSpec(Generic[T]):
             raise ValueError(f"TaskSpec '{self.name}': timeout must be > 0.")
         if self.name in self.depends_on:
             raise ValueError(f"TaskSpec '{self.name}' cannot depend on itself.")
+        if self.fn is None and self.cmd is None:
+            raise ValueError(f"TaskSpec '{self.name}': 必须提供 fn 或 cmd 参数。")
+
+    @property
+    def effective_fn(self) -> TaskFn[T]:
+        """获取有效的执行函数.
+
+        若提供了 ``cmd`` 参数，则返回包装后的命令执行函数；
+        否则返回 ``fn`` 参数。
+        """
+        if self.cmd is not None:
+            return self._wrap_cmd()
+        if self.fn is not None:
+            return self.fn
+
+        raise ValueError(f"TaskSpec '{self.name}': 没有可执行的函数或命令。")  # pragma: no cover
+
+    def _wrap_cmd(self) -> TaskFn[Any]:
+        """将 cmd 包装为可执行函数.
+
+        Returns
+        -------
+        TaskFn[Any]
+            包装后的执行函数.
+        """
+        cmd = self.cmd
+        cwd = self.cwd
+        timeout = self.timeout
+        verbose = self.verbose
+
+        if isinstance(cmd, list):
+            cmd_list = cast(List[str], cmd)
+
+            def _run_list() -> T:
+                import subprocess
+
+                cmd_str = " ".join(str(arg) for arg in cmd_list)
+                if verbose:
+                    print(f"[verbose] 执行命令: {cmd_str}", flush=True)
+                    if cwd is not None:
+                        print(f"[verbose] 工作目录: {cwd}", flush=True)
+                try:
+                    result = subprocess.run(
+                        cmd_list,
+                        cwd=cwd,
+                        timeout=timeout,
+                        capture_output=not verbose,
+                        text=True,
+                        check=False,
+                    )
+                except FileNotFoundError:
+                    raise RuntimeError(f"命令未找到: {cmd_str}") from None
+                except subprocess.TimeoutExpired:
+                    raise RuntimeError(f"命令执行超时: {cmd_str} ({timeout}s)") from None
+                except OSError as e:
+                    raise RuntimeError(f"命令执行异常: {cmd_str}: {e}") from e
+
+                if verbose:
+                    print(f"[verbose] 返回码: {result.returncode}", flush=True)
+
+                if result.returncode == 0:
+                    return cast(T, None)  # type: ignore[return-value]
+
+                err_msg = f"命令执行失败: `{cmd_str}`, 返回码: {result.returncode}"
+                if not verbose and result.stderr.strip():
+                    err_msg += f"\n{result.stderr.strip()}"
+                raise RuntimeError(err_msg)
+
+            _run_list.__name__ = self.name
+            return _run_list  # type: ignore[return-value]
+
+        if isinstance(cmd, str):
+
+            def _run_shell() -> T:
+                import subprocess
+
+                if verbose:
+                    print(f"[verbose] 执行 Shell: {cmd}", flush=True)
+                    if cwd is not None:
+                        print(f"[verbose] 工作目录: {cwd}", flush=True)
+                try:
+                    result = subprocess.run(
+                        cmd,
+                        shell=True,
+                        cwd=cwd,
+                        timeout=timeout,
+                        capture_output=not verbose,
+                        text=True,
+                        check=False,
+                    )
+                except FileNotFoundError:
+                    raise RuntimeError(f"Shell 命令未找到: {cmd}") from None
+                except subprocess.TimeoutExpired:
+                    raise RuntimeError(f"Shell 命令执行超时: {cmd} ({timeout}s)") from None
+                except OSError as e:
+                    raise RuntimeError(f"Shell 命令执行异常: {cmd}: {e}") from e
+
+                if verbose:
+                    print(f"[verbose] 返回码: {result.returncode}", flush=True)
+
+                if result.returncode == 0:
+                    return cast(T, None)  # type: ignore[return-value]
+
+                err_msg = f"Shell 命令执行失败: `{cmd}`, 返回码: {result.returncode}"
+                if not verbose and result.stderr.strip():
+                    err_msg += f"\n{result.stderr.strip()}"
+                raise RuntimeError(err_msg)
+
+            _run_shell.__name__ = self.name
+            return _run_shell  # type: ignore[return-value]
+
+        if callable(cmd):
+            return cmd  # type: ignore[return-value]
+
+        raise TypeError(f"TaskSpec '{self.name}': 不支持的 cmd 类型 {type(cmd).__name__}")  # pragma: no cover
+
+    def should_execute(self) -> bool:
+        """检查任务是否应该执行.
+
+        Returns
+        -------
+        bool
+            若所有条件都返回 ``True``，且 ``skip_if_missing`` 检查通过，
+            则返回 ``True``；否则返回 ``False``。
+        """
+        if not all(condition() for condition in self.conditions):
+            return False
+
+        return not (self.skip_if_missing and not self._is_cmd_available())
+
+    def _is_cmd_available(self) -> bool:
+        """检查 ``cmd`` 是否可用.
+
+        仅对 ``list[str]`` 类型的 ``cmd`` 进行检查（通过 :func:`shutil.which`）。
+        对于 ``str`` (shell) 和 ``Callable`` 类型，始终返回 ``True``。
+
+        Returns
+        -------
+        bool
+            命令可用返回 ``True``，否则返回 ``False``。
+        """
+        import shutil
+
+        cmd = self.cmd
+        if isinstance(cmd, list) and cmd:
+            first_arg = cast(str, cmd[0])
+            return shutil.which(first_arg) is not None
+        return True
 
 
 @dataclass

tests/cli/test_pymake.py

@@ -0,0 +1,192 @@
+"""Tests for cli.pymake module."""
+
+from __future__ import annotations
+
+from unittest.mock import patch
+
+import pytest
+
+from pyflowx.cli import pymake
+from pyflowx.conditions import Constants
+
+
+# ---------------------------------------------------------------------- #
+# maturin_build_cmd
+# ---------------------------------------------------------------------- #
+class TestMaturinBuildCmd:
+    """Test maturin_build_cmd function."""
+
+    def test_returns_list(self) -> None:
+        """Should return a list."""
+        cmd = pymake.maturin_build_cmd()
+        assert isinstance(cmd, list)
+
+    def test_contains_maturin_build(self) -> None:
+        """Should contain 'maturin' and 'build'."""
+        cmd = pymake.maturin_build_cmd()
+        assert "maturin" in cmd
+        assert "build" in cmd
+
+    def test_contains_release_flag(self) -> None:
+        """Should contain release flag '-r'."""
+        cmd = pymake.maturin_build_cmd()
+        assert "-r" in cmd
+
+    def test_windows_includes_target(self) -> None:
+        """On Windows, should include target-specific flags."""
+        cmd = pymake.maturin_build_cmd()
+        if Constants.IS_WINDOWS:
+            assert "--target" in cmd
+            assert "x86_64-win7-windows-msvc" in cmd
+            assert "-Zbuild-std" in cmd
+            assert "-i" in cmd
+            assert "python3.8" in cmd
+        else:
+            # On non-Windows, should not include Windows-specific flags
+            assert "--target" not in cmd
+
+    def test_does_not_mutate_on_multiple_calls(self) -> None:
+        """Multiple calls should return independent lists."""
+        cmd1 = pymake.maturin_build_cmd()
+        cmd2 = pymake.maturin_build_cmd()
+        assert cmd1 == cmd2
+        # Mutating one should not affect the other
+        cmd1.append("extra")
+        assert "extra" not in cmd2
+
+    def test_non_windows_excludes_target_flags(self) -> None:
+        """On non-Windows, should not include Windows-specific flags (覆盖 22->32 分支)."""
+        from unittest.mock import patch
+
+        with patch.object(pymake.Constants, "IS_WINDOWS", False):
+            cmd = pymake.maturin_build_cmd()
+        assert "maturin" in cmd
+        assert "build" in cmd
+        assert "-r" in cmd
+        assert "--target" not in cmd
+        assert "-Zbuild-std" not in cmd
+
+
+# ---------------------------------------------------------------------- #
+# TaskSpec definitions
+# ---------------------------------------------------------------------- #
+class TestTaskSpecDefinitions:
+    """Test that all TaskSpec definitions are valid."""
+
+    def test_uv_build_spec(self) -> None:
+        """uv_build spec should be properly defined."""
+        assert pymake.uv_build.name == "uv_build"
+        assert pymake.uv_build.cmd == ["uv", "build"]
+        assert pymake.uv_build.skip_if_missing is True
+
+    def test_maturin_build_spec(self) -> None:
+        """maturin_build spec should be properly defined."""
+        assert pymake.maturin_build.name == "maturin_build"
+        assert isinstance(pymake.maturin_build.cmd, list)
+        assert pymake.maturin_build.skip_if_missing is True
+
+    def test_uv_sync_spec(self) -> None:
+        """uv_sync spec should be properly defined."""
+        assert pymake.uv_sync.name == "uv_sync"
+        assert pymake.uv_sync.cmd == ["uv", "sync"]
+        assert pymake.uv_sync.skip_if_missing is True
+
+    def test_git_clean_spec(self) -> None:
+        """git_clean spec should be properly defined."""
+        assert pymake.git_clean.name == "git_clean"
+        assert pymake.git_clean.cmd == ["gitt", "c"]
+        assert pymake.git_clean.skip_if_missing is True
+
+    def test_test_spec(self) -> None:
+        """test spec should be properly defined."""
+        assert pymake.test.name == "test"
+        assert isinstance(pymake.test.cmd, list)
+        assert "pytest" in pymake.test.cmd
+        assert "-m" in pymake.test.cmd
+        assert "not slow" in pymake.test.cmd
+        assert pymake.test.skip_if_missing is True
+
+    def test_test_fast_spec(self) -> None:
+        """test_fast spec should be properly defined."""
+        assert pymake.test_fast.name == "test_fast"
+        assert isinstance(pymake.test_fast.cmd, list)
+        assert "pytest" in pymake.test_fast.cmd
+        assert "-n" not in pymake.test_fast.cmd  # test_fast doesn't use parallel
+        assert pymake.test_fast.skip_if_missing is True
+
+    def test_test_coverage_spec(self) -> None:
+        """test_coverage spec should be properly defined."""
+        assert pymake.test_coverage.name == "test_coverage"
+        assert isinstance(pymake.test_coverage.cmd, list)
+        assert "pytest" in pymake.test_coverage.cmd
+        assert "--cov" in pymake.test_coverage.cmd
+        assert pymake.test_coverage.skip_if_missing is True
+
+    def test_ruff_lint_spec(self) -> None:
+        """ruff_lint spec should be properly defined."""
+        assert pymake.ruff_lint.name == "lint"
+        assert isinstance(pymake.ruff_lint.cmd, list)
+        assert "ruff" in pymake.ruff_lint.cmd
+        assert "check" in pymake.ruff_lint.cmd
+        assert pymake.ruff_lint.skip_if_missing is True
+
+    def test_doc_spec(self) -> None:
+        """doc spec should be properly defined."""
+        assert pymake.doc.name == "doc"
+        assert isinstance(pymake.doc.cmd, list)
+        assert "sphinx-build" in pymake.doc.cmd
+        assert pymake.doc.skip_if_missing is True
+
+    def test_hatch_publish_spec(self) -> None:
+        """hatch_publish spec should be properly defined."""
+        assert pymake.hatch_publish.name == "publish_python"
+        assert pymake.hatch_publish.cmd == ["hatch", "publish"]
+        assert pymake.hatch_publish.skip_if_missing is True
+
+    def test_twine_publish_spec(self) -> None:
+        """twine_publish spec should be properly defined."""
+        assert pymake.twine_publish.name == "twine_publish"
+        assert isinstance(pymake.twine_publish.cmd, list)
+        assert "twine" in pymake.twine_publish.cmd
+        assert "upload" in pymake.twine_publish.cmd
+        assert pymake.twine_publish.skip_if_missing is True
+
+    def test_tox_spec(self) -> None:
+        """tox spec should be properly defined."""
+        assert pymake.tox.name == "tox"
+        assert pymake.tox.cmd == ["tox", "-p", "auto"]
+        assert pymake.tox.skip_if_missing is True
+
+
+# ---------------------------------------------------------------------- #
+# main function
+# ---------------------------------------------------------------------- #
+class TestMain:
+    """Test main function."""
+
+    def test_main_calls_run_cli(self) -> None:
+        """main() should create a CliRunner and call run_cli()."""
+        with pytest.raises(SystemExit) as exc_info:
+            pymake.main()
+        # run_cli() calls sys.exit(), so we should get SystemExit
+        # The exit code depends on whether any commands are available
+        assert exc_info.value.code in (0, 1, 2)
+
+    def test_main_with_list_argument(self) -> None:
+        """main() should handle --list argument."""
+        with patch("sys.argv", ["pymake", "--list"]), pytest.raises(SystemExit) as exc_info:
+            pymake.main()
+        assert exc_info.value.code == 0
+
+    def test_main_creates_runner_with_multiple_commands(self) -> None:
+        """main() should create a CliRunner with multiple commands."""
+        # We can't easily test the runner creation without mocking,
+        # but we can verify that main() doesn't raise an error for --list
+        with patch("sys.argv", ["pymake", "--list"]), pytest.raises(SystemExit):
+            pymake.main()
+
+    def test_main_with_no_args_shows_help(self) -> None:
+        """main() with no args should show help and exit with failure."""
+        with patch("sys.argv", ["pymake"]), pytest.raises(SystemExit) as exc_info:
+            pymake.main()
+        assert exc_info.value.code == 1

tests/test_conditions.py

@@ -0,0 +1,176 @@
+"""Tests for conditions module."""
+
+import os
+import sys
+from unittest.mock import patch
+
+from pyflowx.conditions import (
+    IS_LINUX,
+    IS_MACOS,
+    IS_POSIX,
+    IS_WINDOWS,
+    BuiltinConditions,
+    Constants,
+)
+
+
+def test_constants_is_windows():
+    """Test Constants.IS_WINDOWS is correct."""
+    assert (sys.platform == "win32") == Constants.IS_WINDOWS
+
+
+def test_constants_is_linux():
+    """Test Constants.IS_LINUX is correct."""
+    assert (sys.platform == "linux") == Constants.IS_LINUX
+
+
+def test_constants_is_macos():
+    """Test Constants.IS_MACOS is correct."""
+    assert (sys.platform == "darwin") == Constants.IS_MACOS
+
+
+def test_constants_is_posix():
+    """Test Constants.IS_POSIX is correct."""
+    assert (sys.platform != "win32") == Constants.IS_POSIX
+
+
+def test_builtin_conditions_is_windows():
+    """Test BuiltinConditions.IS_WINDOWS."""
+    result = BuiltinConditions.IS_WINDOWS()
+    assert result == Constants.IS_WINDOWS
+
+
+def test_builtin_conditions_is_linux():
+    """Test BuiltinConditions.IS_LINUX."""
+    result = BuiltinConditions.IS_LINUX()
+    assert result == Constants.IS_LINUX
+
+
+def test_builtin_conditions_is_macos():
+    """Test BuiltinConditions.IS_MACOS."""
+    result = BuiltinConditions.IS_MACOS()
+    assert result == Constants.IS_MACOS
+
+
+def test_builtin_conditions_is_posix():
+    """Test BuiltinConditions.IS_POSIX."""
+    result = BuiltinConditions.IS_POSIX()
+    assert result == Constants.IS_POSIX
+
+
+def test_builtin_conditions_python_version_major_only():
+    """Test BuiltinConditions.PYTHON_VERSION with major only."""
+    # Test with current Python version
+    current_major = sys.version_info.major
+    assert BuiltinConditions.PYTHON_VERSION(current_major) is True
+    assert BuiltinConditions.PYTHON_VERSION(current_major + 1) is False
+
+
+def test_builtin_conditions_python_version_with_minor():
+    """Test BuiltinConditions.PYTHON_VERSION with major and minor."""
+    current_major = sys.version_info.major
+    current_minor = sys.version_info.minor
+    assert BuiltinConditions.PYTHON_VERSION(current_major, current_minor) is True
+    assert BuiltinConditions.PYTHON_VERSION(current_major, current_minor + 1) is False
+
+
+def test_builtin_conditions_python_version_at_least():
+    """Test BuiltinConditions.PYTHON_VERSION_AT_LEAST."""
+    current_major = sys.version_info.major
+    current_minor = sys.version_info.minor
+    # Current version should be at least itself
+    assert BuiltinConditions.PYTHON_VERSION_AT_LEAST(current_major, current_minor) is True
+    # Current version should be at least an older version
+    assert BuiltinConditions.PYTHON_VERSION_AT_LEAST(current_major - 1, 0) is True
+    # Current version should NOT be at least a newer version
+    assert BuiltinConditions.PYTHON_VERSION_AT_LEAST(current_major + 1, 0) is False
+
+
+def test_builtin_conditions_HAS_INSTALLED_true():
+    """Test BuiltinConditions.HAS_INSTALLED when app exists."""
+    # Python should always be available
+    condition = BuiltinConditions.HAS_INSTALLED("python")
+    assert condition() is True
+
+
+def test_builtin_conditions_HAS_INSTALLED_false():
+    """Test BuiltinConditions.HAS_INSTALLED when app doesn't exist."""
+    condition = BuiltinConditions.HAS_INSTALLED("nonexistent_app_12345")
+    assert condition() is False
+
+
+def test_builtin_conditions_env_var_exists_true():
+    """Test BuiltinConditions.ENV_VAR_EXISTS when variable exists."""
+    with patch.dict(os.environ, {"TEST_VAR": "value"}):
+        condition = BuiltinConditions.ENV_VAR_EXISTS("TEST_VAR")
+        assert condition() is True
+
+
+def test_builtin_conditions_env_var_exists_false():
+    """Test BuiltinConditions.ENV_VAR_EXISTS when variable doesn't exist."""
+    condition = BuiltinConditions.ENV_VAR_EXISTS("NONEXISTENT_VAR_12345")
+    assert condition() is False
+
+
+def test_builtin_conditions_env_var_equals_true():
+    """Test BuiltinConditions.ENV_VAR_EQUALS when value matches."""
+    with patch.dict(os.environ, {"TEST_VAR": "expected_value"}):
+        condition = BuiltinConditions.ENV_VAR_EQUALS("TEST_VAR", "expected_value")
+        assert condition() is True
+
+
+def test_builtin_conditions_env_var_equals_false():
+    """Test BuiltinConditions.ENV_VAR_EQUALS when value doesn't match."""
+    with patch.dict(os.environ, {"TEST_VAR": "different_value"}):
+        condition = BuiltinConditions.ENV_VAR_EQUALS("TEST_VAR", "expected_value")
+        assert condition() is False
+
+
+def test_builtin_conditions_not():
+    """Test BuiltinConditions.NOT."""
+    true_condition = lambda: True  # noqa: E731
+    false_condition = lambda: False  # noqa: E731
+
+    not_true = BuiltinConditions.NOT(true_condition)
+    assert not_true() is False
+
+    not_false = BuiltinConditions.NOT(false_condition)
+    assert not_false() is True
+
+
+def test_builtin_conditions_and_all_true():
+    """Test BuiltinConditions.AND when all conditions are true."""
+    true_condition = lambda: True  # noqa: E731
+    condition = BuiltinConditions.AND(true_condition, true_condition, true_condition)
+    assert condition() is True
+
+
+def test_builtin_conditions_and_one_false():
+    """Test BuiltinConditions.AND when one condition is false."""
+    true_condition = lambda: True  # noqa: E731
+    false_condition = lambda: False  # noqa: E731
+    condition = BuiltinConditions.AND(true_condition, false_condition, true_condition)
+    assert condition() is False
+
+
+def test_builtin_conditions_or_all_false():
+    """Test BuiltinConditions.OR when all conditions are false."""
+    false_condition = lambda: False  # noqa: E731
+    condition = BuiltinConditions.OR(false_condition, false_condition, false_condition)
+    assert condition() is False
+
+
+def test_builtin_conditions_or_one_true():
+    """Test BuiltinConditions.OR when one condition is true."""
+    true_condition = lambda: True  # noqa: E731
+    false_condition = lambda: False  # noqa: E731
+    condition = BuiltinConditions.OR(false_condition, true_condition, false_condition)
+    assert condition() is True
+
+
+def test_exported_conditions():
+    """Test exported condition functions."""
+    assert IS_WINDOWS() == Constants.IS_WINDOWS
+    assert IS_LINUX() == Constants.IS_LINUX
+    assert IS_MACOS() == Constants.IS_MACOS
+    assert IS_POSIX() == Constants.IS_POSIX

tests/test_context.py

@@ -1,4 +1,4 @@
-"""Tests for context injection rules."""
+"""测试上下文注入规则."""
 
 from __future__ import annotations
 
@@ -11,225 +11,222 @@ from pyflowx.context import _is_context_annotation, build_call_args, describe_in
 from pyflowx.errors import InjectionError
 
 
-def test_inject_by_parameter_name() -> None:
-    def fn(a: int, b: str) -> str:
-        return f"{a}{b}"
+class TestBuildCallArgs:
+    """测试 build_call_args 函数."""
 
-    spec = px.TaskSpec("c", fn, ("a", "b"))
-    args, kwargs = build_call_args(spec, {"a": 1, "b": "x"})
-    assert args == ()
-    assert kwargs == {"a": 1, "b": "x"}
+    def test_inject_by_parameter_name(self) -> None:
+        """参数名匹配依赖名时应注入对应结果."""
 
+        def fn(a: int, b: str) -> str:
+            return f"{a}{b}"
 
-def test_inject_context_annotation() -> None:
-    def fn(ctx: px.Context) -> int:
-        return len(ctx)
+        spec = px.TaskSpec("c", fn, depends_on=("a", "b"))
+        _args, kwargs = build_call_args(spec, {"a": 1, "b": "x"})
+        assert kwargs == {"a": 1, "b": "x"}
 
-    spec = px.TaskSpec("agg", fn, ("a", "b"))
-    args, kwargs = build_call_args(spec, {"a": 1, "b": 2, "c": 99})
-    # Only the task's own deps are passed.
-    assert kwargs == {"ctx": {"a": 1, "b": 2}}
+    def test_inject_context_annotation(self) -> None:
+        """标注为 Context 的参数应接收完整依赖映射."""
 
+        def fn(ctx: px.Context) -> int:
+            return len(ctx)
 
-def test_inject_var_keyword() -> None:
-    def fn(**kwargs: Any) -> int:
-        return sum(kwargs.values())
+        spec = px.TaskSpec("agg", fn, depends_on=("a", "b"))
+        _args, kwargs = build_call_args(spec, {"a": 1, "b": 2, "c": 99})
+        # Only the task's own deps are passed.
+        assert kwargs == {"ctx": {"a": 1, "b": 2}}
 
-    spec = px.TaskSpec("agg", fn, ("a", "b"))
-    args, kwargs = build_call_args(spec, {"a": 1, "b": 2})
-    assert kwargs == {"a": 1, "b": 2}
+    def test_inject_var_keyword(self) -> None:
+        """**kwargs 参数应以 dict 形式接收所有依赖结果."""
 
+        def fn(**kwargs: Any) -> int:  # pyright: ignore[reportExplicitAny, reportAny]
+            return sum(kwargs.values())
 
-def test_static_args_and_kwargs() -> None:
-    def fn(uid: int, source: str) -> str:
-        return f"{source}:{uid}"
+        spec = px.TaskSpec("agg", fn, depends_on=("a", "b"))
+        _args, kwargs = build_call_args(spec, {"a": 1, "b": 2})
+        assert kwargs == {"a": 1, "b": 2}
 
-    spec = px.TaskSpec("fetch", fn, args=(42,), kwargs={"source": "api"})
-    args, kwargs = build_call_args(spec, {})
-    assert args == (42,)
-    assert kwargs == {"source": "api"}
+    def test_static_args_and_kwargs(self) -> None:
+        """静态 args/kwargs 应正确填充非依赖参数."""
 
+        def fn(uid: int, source: str) -> str:
+            return f"{source}:{uid}"
 
-def test_default_param_not_required() -> None:
-    def fn(a: int, flag: bool = True) -> int:
-        return a if flag else 0
+        spec = px.TaskSpec("fetch", fn, args=(42,), kwargs={"source": "api"})
+        args, kwargs = build_call_args(spec, {})
+        assert args == (42,)
+        assert kwargs == {"source": "api"}
 
-    spec = px.TaskSpec("t", fn, ("a",))
-    args, kwargs = build_call_args(spec, {"a": 5})
-    assert kwargs == {"a": 5}
+    def test_default_param_not_required(self) -> None:
+        """有默认值的参数无需依赖或静态值."""
 
+        def fn(a: int, flag: bool = True) -> int:
+            return a if flag else 0
 
-def test_unresolved_required_param_raises() -> None:
-    def fn(a: int, missing: str) -> None:
-        return None
+        spec = px.TaskSpec("t", fn, depends_on=("a",))
+        _args, kwargs = build_call_args(spec, {"a": 5})
+        assert kwargs == {"a": 5}
 
-    spec = px.TaskSpec("t", fn, ("a",))
-    with pytest.raises(InjectionError) as exc_info:
-        build_call_args(spec, {"a": 1})
-    assert "missing" in str(exc_info.value)
+    def test_unresolved_required_param_raises(self) -> None:
+        """必需参数无法解析时应抛出 InjectionError."""
 
+        def fn(_a: int, _: str) -> None:
+            return None
 
-def test_static_kwargs_collide_with_dependency() -> None:
-    def fn(a: int) -> int:
-        return a
+        spec = px.TaskSpec("t", fn, depends_on=("a",))
+        with pytest.raises(InjectionError) as exc_info:
+            _ = build_call_args(spec, {"a": 1})
+        assert "Cannot inject" in str(exc_info.value)
 
-    spec = px.TaskSpec("t", fn, ("a",), kwargs={"a": 99})
-    with pytest.raises(InjectionError):
-        build_call_args(spec, {"a": 1})
+    def test_static_kwargs_collide_with_dependency(self) -> None:
+        """静态 kwargs 与依赖名冲突时应抛出 InjectionError."""
 
+        def fn(a: int) -> int:
+            return a
 
-def test_describe_injection() -> None:
-    def fn(a: int, ctx: px.Context, flag: bool = False) -> None:
-        return None
+        spec = px.TaskSpec("t", fn, depends_on=("a",), kwargs={"a": 99})
+        with pytest.raises(InjectionError):
+            _ = build_call_args(spec, {"a": 1})
 
-    spec = px.TaskSpec("t", fn, ("a",))
-    desc = describe_injection(spec)
-    assert "a=<result:a>" in desc
-    assert "ctx=<Context>" in desc
-    assert "flag=<default>" in desc
+    def test_var_positional_not_required(self) -> None:
+        """*args 参数不应触发 InjectionError."""
 
+        def fn(*args: Any) -> int:  # pyright: ignore[reportExplicitAny, reportAny]
+            return len(args)
 
-# ---------------------------------------------------------------------- #
-# _is_context_annotation 各分支
-# ---------------------------------------------------------------------- #
-def test_is_context_annotation_direct_object() -> None:
-    """直接传入 Context 别名对象应返回 True。"""
-    assert _is_context_annotation(px.Context) is True
+        spec = px.TaskSpec("t", fn, args=(1, 2, 3))
+        args, kwargs = build_call_args(spec, {})
+        assert args == (1, 2, 3)
+        assert kwargs == {}
 
+    def test_var_keyword_consumes_leftover(self) -> None:
+        """**kwargs 应吞掉未被具名参数消费的依赖结果."""
 
-def test_is_context_annotation_string() -> None:
-    """字符串形式的注解应被识别。"""
-    assert _is_context_annotation("Context") is True
-    assert _is_context_annotation("px.Context") is True
-    assert _is_context_annotation("pyflowx.Context") is True
-    assert _is_context_annotation("NotContext") is False
-    assert _is_context_annotation("int") is False
+        def fn(a: int, **rest: Any) -> int:  # pyright: ignore[reportExplicitAny, reportAny]
+            return a + sum(rest.values())
 
+        spec = px.TaskSpec("t", fn, depends_on=("a", "b", "c"))
+        _args, kwargs = build_call_args(spec, {"a": 1, "b": 2, "c": 3})
+        assert kwargs == {"a": 1, "b": 2, "c": 3}
 
-def test_is_context_annotation_typing_alias() -> None:
-    """具有 __name__/_name 为 Context/Mapping 的 typing 别名应返回 True。"""
+    def test_no_var_keyword_drops_leftover(self) -> None:
+        """无 **kwargs 时，未被消费的依赖结果被丢弃（不报错）."""
 
-    class FakeAlias:
-        __name__ = "Context"
+        def fn(a: int) -> int:
+            return a
 
-    assert _is_context_annotation(FakeAlias()) is True
+        spec = px.TaskSpec("t", fn, depends_on=("a", "b"))
+        # b 是依赖但 fn 不接收它 —— 应正常工作
+        _args, kwargs = build_call_args(spec, {"a": 1, "b": 2})
+        assert kwargs == {"a": 1}
 
-    class FakeMapping:
-        __name__ = "Mapping"
+    def test_context_annotation_only_deps(self) -> None:
+        """Context 标注只接收该任务自身 depends_on 的结果."""
 
-    assert _is_context_annotation(FakeMapping()) is True
+        def fn(ctx: px.Context) -> int:
+            return len(ctx)
 
+        spec = px.TaskSpec("t", fn, depends_on=("a", "b"))
+        _args, kwargs = build_call_args(spec, {"a": 1, "b": 2, "c": 99})
+        assert kwargs == {"ctx": {"a": 1, "b": 2}}
 
-def test_is_context_annotation_other() -> None:
-    """其他类型注解应返回 False。"""
-    assert _is_context_annotation(int) is False
-    assert _is_context_annotation(str) is False
-    assert _is_context_annotation(None) is False
 
+class TestDescribeInjection:
+    """测试 describe_injection 函数."""
 
-# ---------------------------------------------------------------------- #
-# describe_injection 其余分支
-# ---------------------------------------------------------------------- #
-def test_describe_injection_var_positional() -> None:
-    """*args 参数应显示为 *args。"""
+    def test_describe_injection(self) -> None:
+        """应正确描述依赖注入、Context 标注和默认值."""
 
-    def fn(*args: Any) -> None:
-        return None
+        def fn(a: int, ctx: px.Context, flag: bool = False) -> None:  # noqa: ARG001
+            return None
 
-    spec = px.TaskSpec("t", fn)
-    desc = describe_injection(spec)
-    assert "*args" in desc
+        spec = px.TaskSpec("t", fn, depends_on=("a",))
+        desc = describe_injection(spec)
+        assert "a=<result:a>" in desc
+        assert "ctx=<Context>" in desc
+        assert "flag=<default>" in desc
 
+    def test_var_positional(self) -> None:
+        """*args 参数应显示为 *args."""
 
-def test_describe_injection_var_keyword() -> None:
-    """**kwargs 参数应显示为 **kwargs=<all-deps>。"""
+        def fn(*args: Any) -> None:  # noqa: ARG001
+            return None
 
-    def fn(**kwargs: Any) -> None:
-        return None
+        spec = px.TaskSpec("t", fn)
+        desc = describe_injection(spec)
+        assert "*args" in desc
 
-    spec = px.TaskSpec("t", fn, ("a",))
-    desc = describe_injection(spec)
-    assert "**kwargs=<all-deps>" in desc
+    def test_var_keyword(self) -> None:
+        """**kwargs 参数应显示为 **kwargs=<all-deps>."""
 
+        def fn(**kwargs: Any) -> None:  # pyright: ignore[reportExplicitAny, reportAny]  # noqa: ARG001
+            return None
 
-def test_describe_injection_unresolved() -> None:
-    """无依赖、无静态值、无默认的参数应显示为 <UNRESOLVED>。"""
+        spec = px.TaskSpec("t", fn, depends_on=("a",))
+        desc = describe_injection(spec)
+        assert "**kwargs=<all-deps>" in desc
 
-    def fn(missing: int) -> None:
-        return None
+    def test_unresolved(self) -> None:
+        """无依赖、无静态值、无默认的参数应显示为 <UNRESOLVED>."""
 
-    spec = px.TaskSpec("t", fn)
-    desc = describe_injection(spec)
-    assert "missing=<UNRESOLVED>" in desc
+        def fn(missing: int) -> None:  # noqa: ARG001
+            return None
 
+        spec = px.TaskSpec("t", fn)
+        desc = describe_injection(spec)
+        assert "missing=<UNRESOLVED>" in desc
 
-def test_describe_injection_static_kwargs() -> None:
-    """静态 kwargs 应显示具体值。"""
+    def test_static_kwargs(self) -> None:
+        """静态 kwargs 应显示具体值."""
 
-    def fn(flag: bool = False) -> None:
-        return None
+        def fn(flag: bool = False) -> None:  # noqa: ARG001
+            return None
 
-    spec = px.TaskSpec("t", fn, kwargs={"flag": True})
-    desc = describe_injection(spec)
-    assert "flag=True" in desc
+        spec = px.TaskSpec("t", fn, kwargs={"flag": True})
+        desc = describe_injection(spec)
+        assert "flag=True" in desc
 
+    def test_positional_args_filled(self) -> None:
+        """spec.args 填充的位置参数应显示具体值（覆盖 args_filled 分支）."""
 
-def test_describe_injection_positional_args_filled() -> None:
-    """spec.args 填充的位置参数应显示具体值（覆盖 args_filled 分支）。"""
+        def fn(a: int, b: str) -> None:  # noqa: ARG001
+            return None
 
-    def fn(a: int, b: str) -> None:
-        return None
+        spec = px.TaskSpec("t", fn, args=(1, "x"))
+        desc = describe_injection(spec)
+        assert "a=1" in desc
+        assert "b='x'" in desc
 
-    spec = px.TaskSpec("t", fn, args=(1, "x"))
-    desc = describe_injection(spec)
-    assert "a=1" in desc
-    assert "b='x'" in desc
 
+class TestIsContextAnnotation:
+    """测试 _is_context_annotation 函数."""
 
-# ---------------------------------------------------------------------- #
-# build_call_args 边界
-# ---------------------------------------------------------------------- #
-def test_build_call_args_var_positional_not_required() -> None:
-    """*args 参数不应触发 InjectionError。"""
+    def test_direct_object(self) -> None:
+        """直接传入 Context 别名对象应返回 True."""
+        assert _is_context_annotation(px.Context) is True
 
-    def fn(*args: Any) -> int:
-        return len(args)
+    def test_string(self) -> None:
+        """字符串形式的注解应被识别."""
+        assert _is_context_annotation("Context") is True
+        assert _is_context_annotation("px.Context") is True
+        assert _is_context_annotation("pyflowx.Context") is True
+        assert _is_context_annotation("NotContext") is False
+        assert _is_context_annotation("int") is False
 
-    spec = px.TaskSpec("t", fn, args=(1, 2, 3))
-    args, kwargs = build_call_args(spec, {})
-    assert args == (1, 2, 3)
-    assert kwargs == {}
+    def test_typing_alias(self) -> None:
+        """具有 __name__/_name 为 Context/Mapping 的 typing 别名应返回 True."""
 
+        class FakeAlias:
+            __name__ = "Context"
 
-def test_build_call_args_var_keyword_consumes_leftover() -> None:
-    """**kwargs 应吞掉未被具名参数消费的依赖结果。"""
+        assert _is_context_annotation(FakeAlias()) is True
 
-    def fn(a: int, **rest: Any) -> int:
-        return a + sum(rest.values())
+        class FakeMapping:
+            __name__ = "Mapping"
 
-    spec = px.TaskSpec("t", fn, ("a", "b", "c"))
-    args, kwargs = build_call_args(spec, {"a": 1, "b": 2, "c": 3})
-    assert kwargs == {"a": 1, "b": 2, "c": 3}
+        assert _is_context_annotation(FakeMapping()) is True
 
-
-def test_build_call_args_no_var_keyword_drops_leftover() -> None:
-    """无 **kwargs 时，未被消费的依赖结果被丢弃（不报错）。"""
-
-    def fn(a: int) -> int:
-        return a
-
-    spec = px.TaskSpec("t", fn, ("a", "b"))
-    # b 是依赖但 fn 不接收它 —— 应正常工作
-    args, kwargs = build_call_args(spec, {"a": 1, "b": 2})
-    assert kwargs == {"a": 1}
-
-
-def test_build_call_args_context_annotation_only_deps() -> None:
-    """Context 标注只接收该任务自身 depends_on 的结果。"""
-
-    def fn(ctx: px.Context) -> int:
-        return len(ctx)
-
-    spec = px.TaskSpec("t", fn, ("a", "b"))
-    args, kwargs = build_call_args(spec, {"a": 1, "b": 2, "c": 99})
-    assert kwargs == {"ctx": {"a": 1, "b": 2}}
+    def test_other(self) -> None:
+        """其他类型注解应返回 False."""
+        assert _is_context_annotation(int) is False
+        assert _is_context_annotation(str) is False
+        assert _is_context_annotation(None) is False

tests/test_executors.py

@@ -3,11 +3,11 @@
 from __future__ import annotations
 
 import asyncio
-import os
 import tempfile
 import threading
 import time
-from typing import Any, List
+from pathlib import Path
+from typing import Any
 
 import pytest
 
@@ -29,7 +29,7 @@ def test_sequential_basic() -> None:
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("extract", extract),
-            px.TaskSpec("double", double, ("extract",)),
+            px.TaskSpec("double", double, depends_on=("extract",)),
         ]
     )
     report = px.run(graph, strategy="sequential")
@@ -39,7 +39,7 @@ def test_sequential_basic() -> None:
 
 
 def test_sequential_diamond() -> None:
-    order: List[str] = []
+    order: list[str] = []
 
     def make(name: str) -> Any:
         def fn() -> str:
@@ -51,9 +51,9 @@ def test_sequential_diamond() -> None:
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("a", make("a")),
-            px.TaskSpec("b", make("b"), ("a",)),
-            px.TaskSpec("c", make("c"), ("a",)),
-            px.TaskSpec("d", make("d"), ("b", "c")),
+            px.TaskSpec("b", make("b"), depends_on=("a",)),
+            px.TaskSpec("c", make("c"), depends_on=("a",)),
+            px.TaskSpec("d", make("d"), depends_on=("b", "c")),
         ]
     )
     report = px.run(graph, strategy="sequential")
@@ -66,17 +66,17 @@ def test_failure_propagates() -> None:
     def boom() -> None:
         raise ValueError("kaboom")
 
-    def downstream(boom: None) -> int:
+    def downstream(_boom: None) -> int:
         return 1
 
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("boom", boom),
-            px.TaskSpec("downstream", downstream, ("boom",)),
+            px.TaskSpec("downstream", downstream, depends_on=("boom",)),
         ]
     )
     with pytest.raises(TaskFailedError) as exc_info:
-        px.run(graph, strategy="sequential")
+        _ = px.run(graph, strategy="sequential")
     assert exc_info.value.task == "boom"
     assert isinstance(exc_info.value.cause, ValueError)
 
@@ -103,13 +103,14 @@ def test_retries_exhausted() -> None:
 
     graph = px.Graph.from_specs([px.TaskSpec("f", always_fail, retries=2)])
     with pytest.raises(TaskFailedError) as exc_info:
-        px.run(graph, strategy="sequential")
+        _ = px.run(graph, strategy="sequential")
     assert exc_info.value.attempts == 3
 
 
 # ---------------------------------------------------------------------- #
 # Threaded
 # ---------------------------------------------------------------------- #
+@pytest.mark.slow
 def test_threaded_parallelism() -> None:
     def slow() -> str:
         time.sleep(0.3)
@@ -126,12 +127,13 @@ def test_threaded_parallelism() -> None:
     report = px.run(graph, strategy="thread", max_workers=3)
     elapsed = time.time() - start
     assert report.success
-    # Three 0.3s tasks in parallel should be well under 0.8s.
-    assert elapsed < 0.8
+    # Three 0.3s tasks in parallel should be well under 1.0s.
+    assert elapsed < 1.0
 
 
+@pytest.mark.slow
 def test_threaded_layer_barrier() -> None:
-    finished: List[str] = []
+    finished: list[str] = []
     lock = threading.Lock()
 
     def make(name: str) -> Any:
@@ -147,7 +149,7 @@ def test_threaded_layer_barrier() -> None:
         [
             px.TaskSpec("a", make("a")),
             px.TaskSpec("b", make("b")),
-            px.TaskSpec("c", make("c"), ("a", "b")),
+            px.TaskSpec("c", make("c"), depends_on=("a", "b")),
         ]
     )
     report = px.run(graph, strategy="thread", max_workers=2)
@@ -171,7 +173,7 @@ def test_async_basic() -> None:
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("fetch", fetch),
-            px.TaskSpec("transform", transform, ("fetch",)),
+            px.TaskSpec("transform", transform, depends_on=("fetch",)),
         ]
     )
     report = px.run(graph, strategy="async")
@@ -179,6 +181,7 @@ def test_async_basic() -> None:
     assert report["transform"] == 84
 
 
+@pytest.mark.slow
 def test_async_parallelism() -> None:
     async def slow() -> str:
         await asyncio.sleep(0.3)
@@ -209,7 +212,7 @@ def test_async_mixed_sync_and_async() -> None:
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("sync_task", sync_task),
-            px.TaskSpec("async_task", async_task, ("sync_task",)),
+            px.TaskSpec("async_task", async_task, depends_on=("sync_task",)),
         ]
     )
     report = px.run(graph, strategy="async")
@@ -223,7 +226,7 @@ def test_async_timeout() -> None:
 
     graph = px.Graph.from_specs([px.TaskSpec("slow", slow, timeout=0.05)])
     with pytest.raises(TaskFailedError) as exc_info:
-        px.run(graph, strategy="async")
+        _ = px.run(graph, strategy="async")
     assert isinstance(exc_info.value.cause, TaskTimeoutError)
 
 
@@ -231,7 +234,7 @@ def test_async_timeout() -> None:
 # Dry run
 # ---------------------------------------------------------------------- #
 def test_dry_run_does_not_execute(capsys: pytest.CaptureFixture[str]) -> None:
-    called: List[str] = []
+    called: list[str] = []
 
     def fn() -> str:
         called.append("x")
@@ -250,7 +253,7 @@ def test_dry_run_does_not_execute(capsys: pytest.CaptureFixture[str]) -> None:
 # State / resume
 # ---------------------------------------------------------------------- #
 def test_memory_backend_resume() -> None:
-    runs: List[str] = []
+    runs: list[str] = []
 
     def make(name: str) -> Any:
         def fn() -> str:
@@ -262,30 +265,30 @@ def test_memory_backend_resume() -> None:
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("a", make("a")),
-            px.TaskSpec("b", make("b"), ("a",)),
+            px.TaskSpec("b", make("b"), depends_on=("a",)),
         ]
     )
     backend = MemoryBackend()
-    px.run(graph, strategy="sequential", state=backend)
+    _ = px.run(graph, strategy="sequential", state=backend)
     assert runs == ["a", "b"]
 
     # Second run: both cached, neither re-executed.
-    px.run(graph, strategy="sequential", state=backend)
+    _ = px.run(graph, strategy="sequential", state=backend)
     assert runs == ["a", "b"]  # unchanged
 
 
 def test_json_backend_persistence() -> None:
     with tempfile.TemporaryDirectory() as tmp:
-        path = os.path.join(tmp, "state.json")
+        path = str(Path(tmp) / "state.json")
 
         def fn() -> int:
             return 7
 
         graph = px.Graph.from_specs([px.TaskSpec("a", fn)])
-        px.run(graph, strategy="sequential", state=JSONBackend(path))
+        _ = px.run(graph, strategy="sequential", state=JSONBackend(path))
 
         # New backend reads the file; task should be skipped.
-        runs: List[str] = []
+        runs: list[str] = []
 
         def fn2() -> int:
             runs.append("ran")
@@ -301,27 +304,18 @@ def test_json_backend_persistence() -> None:
 # Events
 # ---------------------------------------------------------------------- #
 def test_on_event_callback() -> None:
-    events: List[px.TaskEvent] = []
+    events: list[px.TaskEvent] = []
 
     def fn() -> int:
         return 1
 
     graph = px.Graph.from_specs([px.TaskSpec("a", fn)])
-    px.run(graph, strategy="sequential", on_event=events.append)
+    _ = px.run(graph, strategy="sequential", on_event=events.append)
     statuses = [e.status for e in events]
     assert px.TaskStatus.SUCCESS in statuses
     assert all(e.task == "a" for e in events)
 
 
-# ---------------------------------------------------------------------- #
-# Invalid strategy
-# ---------------------------------------------------------------------- #
-def test_invalid_strategy() -> None:
-    graph = px.Graph.from_specs([px.TaskSpec("a", lambda: None)])  # type: ignore[arg-type]
-    with pytest.raises(ValueError):
-        px.run(graph, strategy="bogus")  # type: ignore[arg-type]
-
-
 # ---------------------------------------------------------------------- #
 # 异步策略：sync 任务无 timeout 分支 + timeout 重试分支
 # ---------------------------------------------------------------------- #
@@ -390,7 +384,7 @@ def test_async_failure_retry_branch(caplog: pytest.LogCaptureFixture) -> None:
 # ---------------------------------------------------------------------- #
 def test_threaded_skips_cached_tasks() -> None:
     """threaded 策略下命中缓存的任务应被跳过（覆盖 line 224-230）。"""
-    runs: List[str] = []
+    runs: list[str] = []
 
     def make(name: str) -> Any:
         def fn() -> str:
@@ -402,15 +396,15 @@ def test_threaded_skips_cached_tasks() -> None:
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("a", make("a")),
-            px.TaskSpec("b", make("b"), ("a",)),
+            px.TaskSpec("b", make("b"), depends_on=("a",)),
         ]
     )
     backend = px.MemoryBackend()
     # 第一次运行填充缓存
-    px.run(graph, strategy="thread", max_workers=2, state=backend)
+    _ = px.run(graph, strategy="thread", max_workers=2, state=backend)
     assert runs == ["a", "b"]
     # 第二次运行应全部跳过
-    px.run(graph, strategy="thread", max_workers=2, state=backend)
+    _ = px.run(graph, strategy="thread", max_workers=2, state=backend)
     assert runs == ["a", "b"]  # 未再执行
 
 
@@ -426,7 +420,7 @@ def test_threaded_all_cached_layer() -> None:
 
 def test_async_skips_cached_tasks() -> None:
     """async 策略下命中缓存的任务应被跳过（覆盖 line 268-274）。"""
-    runs: List[str] = []
+    runs: list[str] = []
 
     async def make(name: str) -> Any:
         async def fn() -> str:
@@ -447,13 +441,13 @@ def test_async_skips_cached_tasks() -> None:
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("a", a),
-            px.TaskSpec("b", b, ("a",)),
+            px.TaskSpec("b", b, depends_on=("a",)),
         ]
     )
     backend = px.MemoryBackend()
-    px.run(graph, strategy="async", state=backend)
+    _ = px.run(graph, strategy="async", state=backend)
     assert runs == ["a", "b"]
-    px.run(graph, strategy="async", state=backend)
+    _ = px.run(graph, strategy="async", state=backend)
     assert runs == ["a", "b"]
 
 
@@ -480,7 +474,7 @@ def test_failure_marks_report_unsuccessful() -> None:
 
     graph = px.Graph.from_specs([px.TaskSpec("a", boom)])
     with pytest.raises(px.TaskFailedError):
-        px.run(graph, strategy="sequential")
+        _ = px.run(graph, strategy="sequential")
     # report 在异常前未返回，但若捕获异常则 success 应为 False
     # 这里验证 run() 抛异常的行为本身
 

tests/test_executors_edge_cases.py

@@ -0,0 +1,245 @@
+"""Tests for executors module edge cases."""
+
+import asyncio
+import sys
+
+import pytest
+
+import pyflowx as px
+from pyflowx.task import TaskStatus
+
+# 跨平台的 echo 命令
+if sys.platform == "win32":
+    ECHO_CMD = ["cmd", "/c", "echo"]
+else:
+    ECHO_CMD = ["echo"]
+
+
+def test_execute_sync_with_timeout():
+    """Test execute task with timeout correctly."""
+    # Note: timeout for Python functions only works in async strategy
+    # For sync functions, timeout is not enforced in sequential strategy
+    # This test verifies that the task runs without timeout error
+    spec = px.TaskSpec("quick", fn=lambda: "result", timeout=10)
+    graph = px.Graph.from_specs([spec])
+
+    # Should succeed without timeout error
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+
+
+@pytest.mark.slow
+def test_execute_async_with_timeout():
+    """Test execute async task with timeout correctly."""
+
+    async def slow_async_function():
+        await asyncio.sleep(2)
+        return "result"
+
+    spec = px.TaskSpec("slow_async", fn=slow_async_function, timeout=0.5)
+    graph = px.Graph.from_specs([spec])
+
+    # This should timeout
+    with pytest.raises(px.TaskFailedError):
+        px.run(graph, strategy="async")
+
+
+def test_verbose_event_callback_running():
+    """Test verbose event callback for RUNNING status."""
+    # Create a graph with verbose callback
+    spec = px.TaskSpec("test", fn=lambda: "result", verbose=True)
+    graph = px.Graph.from_specs([spec])
+    report = px.run(graph, strategy="sequential")
+    # Should print without error
+    assert report.success
+
+
+def test_verbose_run_with_success_lifecycle(capsys):
+    """Test px.run with verbose=True prints SUCCESS lifecycle."""
+    spec = px.TaskSpec("test", fn=lambda: "result")
+    graph = px.Graph.from_specs([spec])
+    report = px.run(graph, strategy="sequential", verbose=True)
+    assert report.success
+    captured = capsys.readouterr()
+    assert "成功" in captured.out
+
+
+def test_verbose_run_with_failed_lifecycle(capsys):
+    """Test px.run with verbose=True prints FAILED lifecycle with error."""
+
+    def raise_error():
+        raise ValueError("test error")
+
+    spec = px.TaskSpec("test", fn=raise_error)
+    graph = px.Graph.from_specs([spec])
+
+    with pytest.raises(px.TaskFailedError):
+        px.run(graph, strategy="sequential", verbose=True)
+    captured = capsys.readouterr()
+    assert "失败" in captured.out
+    assert "test error" in captured.out
+
+
+def test_verbose_run_with_skipped_lifecycle(capsys):
+    """Test px.run with verbose=True prints SKIPPED lifecycle."""
+    spec = px.TaskSpec(
+        "test",
+        fn=lambda: "result",
+        conditions=(lambda: False,),
+    )
+    graph = px.Graph.from_specs([spec])
+    report = px.run(graph, strategy="sequential", verbose=True)
+    assert report.success
+    captured = capsys.readouterr()
+    assert "跳过" in captured.out
+
+
+def test_verbose_run_with_user_callback():
+    """Test px.run with verbose=True and user callback both called."""
+    events = []
+
+    def on_event(event):
+        events.append(event)
+
+    spec = px.TaskSpec("test", fn=lambda: "result")
+    graph = px.Graph.from_specs([spec])
+    report = px.run(graph, strategy="sequential", verbose=True, on_event=on_event)
+    assert report.success
+    assert len(events) == 1
+    assert events[0].status == px.TaskStatus.SUCCESS
+
+
+def test_verbose_event_callback_success():
+    """Test verbose event callback for SUCCESS status."""
+    # Create a graph with verbose callback
+    spec = px.TaskSpec("test", fn=lambda: "result", verbose=True)
+    graph = px.Graph.from_specs([spec])
+    report = px.run(graph, strategy="sequential")
+    # Should print without error
+    assert report.success
+
+
+def test_verbose_event_callback_failed():
+    """Test verbose event callback for FAILED status."""
+    # Create a graph with verbose callback and failing task
+
+    def raise_error():
+        raise ValueError("test error")
+
+    spec = px.TaskSpec("test", fn=raise_error, verbose=True)
+    graph = px.Graph.from_specs([spec])
+
+    # Should print without error
+    with pytest.raises(px.TaskFailedError):
+        px.run(graph, strategy="sequential")
+
+
+def test_verbose_event_callback_skipped():
+    """Test verbose event callback for SKIPPED status."""
+    # Create a graph with verbose callback and skipped task
+    spec = px.TaskSpec(
+        "test",
+        fn=lambda: "result",
+        conditions=(lambda: False,),
+        verbose=True,
+    )
+    graph = px.Graph.from_specs([spec])
+    report = px.run(graph, strategy="sequential")
+    # Should print without error
+    assert report.success
+
+
+def test_execute_sync_with_retries():
+    """Test execute task with retries."""
+
+    call_count = 0
+
+    def failing_function():
+        nonlocal call_count
+        call_count += 1
+        if call_count < 3:
+            raise ValueError("temporary error")
+        return "success"
+
+    spec = px.TaskSpec("retry_test", fn=failing_function, retries=3)
+    graph = px.Graph.from_specs([spec])
+
+    # Should succeed after retries
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+    assert report.results["retry_test"].attempts == 3
+
+
+def test_execute_async_with_retries():
+    """Test execute async task with retries."""
+
+    call_count = 0
+
+    async def failing_async_function():
+        nonlocal call_count
+        call_count += 1
+        if call_count < 3:
+            raise ValueError("temporary error")
+        return "success"
+
+    spec = px.TaskSpec("retry_async_test", fn=failing_async_function, retries=3)
+    graph = px.Graph.from_specs([spec])
+
+    # Should succeed after retries
+    report = px.run(graph, strategy="async")
+    assert report.success
+    assert report.results["retry_async_test"].attempts == 3
+
+
+def test_execute_sync_skip_on_condition():
+    """Test execute task skips task when condition is false."""
+    spec = px.TaskSpec(
+        "skip_test",
+        fn=lambda: "result",
+        conditions=(lambda: False,),
+    )
+    graph = px.Graph.from_specs([spec])
+
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+    assert report.results["skip_test"].status == TaskStatus.SKIPPED
+
+
+def test_execute_async_skip_on_condition():
+    """Test execute async task skips task when condition is false."""
+    spec = px.TaskSpec(
+        "skip_async_test",
+        fn=lambda: "result",
+        conditions=(lambda: False,),
+    )
+    graph = px.Graph.from_specs([spec])
+
+    report = px.run(graph, strategy="async")
+    assert report.success
+    assert report.results["skip_async_test"].status == TaskStatus.SKIPPED
+
+
+def test_execute_sync_with_error():
+    """Test execute task handles errors correctly."""
+
+    def error_function():
+        raise ValueError("test error")
+
+    spec = px.TaskSpec("error_test", fn=error_function)
+    graph = px.Graph.from_specs([spec])
+
+    with pytest.raises(px.TaskFailedError):
+        px.run(graph, strategy="sequential")
+
+
+def test_execute_async_with_error():
+    """Test execute async task handles errors correctly."""
+
+    async def error_async_function():
+        raise ValueError("test error")
+
+    spec = px.TaskSpec("error_async_test", fn=error_async_function)
+    graph = px.Graph.from_specs([spec])
+
+    with pytest.raises(px.TaskFailedError):
+        px.run(graph, strategy="async")

tests/test_graph.py

@@ -16,8 +16,8 @@ def test_from_specs_builds_graph() -> None:
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("a", _fn),
-            px.TaskSpec("b", _fn, ("a",)),
-            px.TaskSpec("c", _fn, ("a", "b")),
+            px.TaskSpec("b", _fn, depends_on=("a",)),
+            px.TaskSpec("c", _fn, depends_on=("a", "b")),
         ]
     )
     assert set(graph.names) == {"a", "b", "c"}
@@ -30,7 +30,7 @@ def test_from_specs_allows_forward_references() -> None:
     # b depends on a, but a is declared after b — order should not matter.
     graph = px.Graph.from_specs(
         [
-            px.TaskSpec("b", _fn, ("a",)),
+            px.TaskSpec("b", _fn, depends_on=("a",)),
             px.TaskSpec("a", _fn),
         ]
     )
@@ -39,7 +39,7 @@ def test_from_specs_allows_forward_references() -> None:
 
 def test_duplicate_task_raises() -> None:
     with pytest.raises(DuplicateTaskError):
-        px.Graph.from_specs(
+        _ = px.Graph.from_specs(
             [
                 px.TaskSpec("a", _fn),
                 px.TaskSpec("a", _fn),
@@ -49,18 +49,19 @@ def test_duplicate_task_raises() -> None:
 
 def test_missing_dependency_raises() -> None:
     with pytest.raises(MissingDependencyError) as exc_info:
-        px.Graph.from_specs([px.TaskSpec("b", _fn, ("a",))])
+        _ = px.Graph.from_specs([px.TaskSpec("b", _fn, depends_on=("a",))])
+
     assert exc_info.value.task == "b"
     assert exc_info.value.dependency == "a"
 
 
 def test_cycle_detection() -> None:
     with pytest.raises(CycleError):
-        px.Graph.from_specs(
+        _ = px.Graph.from_specs(
             [
-                px.TaskSpec("a", _fn, ("c",)),
-                px.TaskSpec("b", _fn, ("a",)),
-                px.TaskSpec("c", _fn, ("b",)),
+                px.TaskSpec("a", _fn, depends_on=("c",)),
+                px.TaskSpec("b", _fn, depends_on=("a",)),
+                px.TaskSpec("c", _fn, depends_on=("b",)),
             ]
         )
 
@@ -70,8 +71,8 @@ def test_layers_grouping() -> None:
         [
             px.TaskSpec("a", _fn),
             px.TaskSpec("b", _fn),
-            px.TaskSpec("c", _fn, ("a", "b")),
-            px.TaskSpec("d", _fn, ("c",)),
+            px.TaskSpec("c", _fn, depends_on=("a", "b")),
+            px.TaskSpec("d", _fn, depends_on=("c",)),
         ]
     )
     layers = graph.layers()
@@ -80,14 +81,14 @@ def test_layers_grouping() -> None:
 
 def test_self_dependency_rejected() -> None:
     with pytest.raises(ValueError):
-        px.TaskSpec("a", _fn, ("a",))
+        _ = px.TaskSpec("a", _fn, depends_on=("a",))
 
 
 def test_to_mermaid() -> None:
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("a", _fn),
-            px.TaskSpec("b", _fn, ("a",)),
+            px.TaskSpec("b", _fn, depends_on=("a",)),
         ]
     )
     mermaid = graph.to_mermaid()
@@ -99,15 +100,15 @@ def test_to_mermaid() -> None:
 def test_to_mermaid_invalid_orientation() -> None:
     graph = px.Graph.from_specs([px.TaskSpec("a", _fn)])
     with pytest.raises(ValueError):
-        graph.to_mermaid("XX")
+        _ = graph.to_mermaid("XX")
 
 
 def test_subgraph_by_tags() -> None:
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("a", _fn, tags=("ingest",)),
-            px.TaskSpec("b", _fn, ("a",), tags=("ingest",)),
-            px.TaskSpec("c", _fn, ("b",), tags=("report",)),
+            px.TaskSpec("b", _fn, depends_on=("a",), tags=("ingest",)),
+            px.TaskSpec("c", _fn, depends_on=("b",), tags=("report",)),
         ]
     )
     sub = graph.subgraph(["ingest"])
@@ -121,8 +122,8 @@ def test_subgraph_by_names() -> None:
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("a", _fn),
-            px.TaskSpec("b", _fn, ("a",)),
-            px.TaskSpec("c", _fn, ("b",)),
+            px.TaskSpec("b", _fn, depends_on=("a",)),
+            px.TaskSpec("c", _fn, depends_on=("b",)),
         ]
     )
     sub = graph.subgraph_by_names(["a", "b"])
@@ -134,14 +135,14 @@ def test_subgraph_by_names() -> None:
 def test_subgraph_by_names_unknown() -> None:
     graph = px.Graph.from_specs([px.TaskSpec("a", _fn)])
     with pytest.raises(KeyError):
-        graph.subgraph_by_names(["nope"])
+        _ = graph.subgraph_by_names(["nope"])
 
 
 def test_describe() -> None:
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("a", _fn),
-            px.TaskSpec("b", _fn, ("a",)),
+            px.TaskSpec("b", _fn, depends_on=("a",)),
         ]
     )
     desc = graph.describe()
@@ -160,14 +161,14 @@ def test_add_chains_and_validates() -> None:
     assert "a" in graph
     # 缺失依赖应即时报错
     with pytest.raises(MissingDependencyError):
-        graph.add(px.TaskSpec("b", _fn, ("missing",)))
+        _ = graph.add(px.TaskSpec("b", _fn, depends_on=("missing",)))
 
 
 def test_add_duplicate_raises() -> None:
     graph = px.Graph()
-    graph.add(px.TaskSpec("a", _fn))
+    _ = graph.add(px.TaskSpec("a", _fn))
     with pytest.raises(DuplicateTaskError):
-        graph.add(px.TaskSpec("a", _fn))
+        _ = graph.add(px.TaskSpec("a", _fn))
 
 
 def test_all_specs_returns_view() -> None:
@@ -182,14 +183,14 @@ def test_spec_accessor() -> None:
     graph = px.Graph.from_specs([px.TaskSpec("a", _fn)])
     assert graph.spec("a").name == "a"
     with pytest.raises(KeyError):
-        graph.spec("missing")
+        _ = graph.spec("missing")
 
 
 def test_dependencies_accessor() -> None:
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("a", _fn),
-            px.TaskSpec("b", _fn, ("a",)),
+            px.TaskSpec("b", _fn, depends_on=("a",)),
         ]
     )
     assert graph.dependencies("a") == ()
@@ -213,7 +214,7 @@ def test_subgraph_preserves_metadata() -> None:
     graph = px.Graph.from_specs(
         [
             px.TaskSpec("a", _fn, tags=("x",), retries=3, timeout=5.0),
-            px.TaskSpec("b", _fn, ("a",), tags=("y",)),
+            px.TaskSpec("b", _fn, depends_on=("a",), tags=("y",)),
         ]
     )
     sub = graph.subgraph(["x"])

tests/test_report.py

@@ -1,8 +1,9 @@
-"""RunReport 测试。"""
+"""RunReport 测试."""
 
 from __future__ import annotations
 
-from datetime import datetime
+from datetime import datetime, timedelta
+from typing import Any
 
 import pyflowx as px
 from pyflowx.task import TaskResult, TaskSpec, TaskStatus
@@ -15,107 +16,113 @@ def _fn() -> int:
 def _make_result(
     name: str = "a",
     status: TaskStatus = TaskStatus.SUCCESS,
-    value: object = 42,
-    error: object = None,
+    value: Any = 42,
+    error: BaseException | None = None,
     duration: float = 0.5,
     attempts: int = 1,
-) -> TaskResult[object]:
-    spec: TaskSpec[object] = TaskSpec(name, _fn)  # type: ignore[arg-type]
+) -> TaskResult[Any]:
+    """构造测试用 TaskResult 实例."""
+    spec: TaskSpec[Any] = TaskSpec[Any](name, _fn)
     start = datetime(2024, 1, 1, 0, 0, 0)
     # 用 timedelta 精确表达秒数，避免 int() 截断小数
-    from datetime import timedelta
-
     end = start + timedelta(seconds=duration) if duration else None
-    return TaskResult(
+    return TaskResult[Any](
         spec=spec,
         status=status,
-        value=value,  # type: ignore[arg-type]
-        error=error,  # type: ignore[arg-type]
+        value=value,
+        error=error,
         attempts=attempts,
         started_at=start,
         finished_at=end,
     )
 
 
-def test_getitem_returns_value() -> None:
-    report = px.RunReport()
-    report.results["a"] = _make_result("a", value=7)
-    assert report["a"] == 7
+class TestRunReportAccess:
+    """测试 RunReport 的访问接口."""
+
+    def test_getitem_returns_value(self) -> None:
+        """report[name] 应返回任务结果值."""
+        report = px.RunReport()
+        report.results["a"] = _make_result("a", value=7)
+        assert report["a"] == 7
+
+    def test_result_of_returns_full_result(self) -> None:
+        """result_of 应返回完整的 TaskResult 对象."""
+        report = px.RunReport()
+        r = _make_result("a")
+        report.results["a"] = r
+        assert report.result_of("a") is r
+
+    def test_contains(self) -> None:
+        """in 运算符应正确判断任务是否存在."""
+        report = px.RunReport()
+        report.results["a"] = _make_result("a")
+        assert "a" in report
+        assert "b" not in report
+
+    def test_iter_and_len(self) -> None:
+        """应支持迭代任务名并返回任务数量."""
+        report = px.RunReport()
+        report.results["a"] = _make_result("a")
+        report.results["b"] = _make_result("b")
+        assert list(report) == ["a", "b"]
+        assert len(report) == 2
 
 
-def test_result_of_returns_full_result() -> None:
-    report = px.RunReport()
-    r = _make_result("a")
-    report.results["a"] = r
-    assert report.result_of("a") is r
+class TestRunReportSummary:
+    """测试 RunReport 的 summary 方法."""
+
+    def test_summary_success(self) -> None:
+        """应正确汇总成功和跳过的任务."""
+        report = px.RunReport()
+        report.results["a"] = _make_result("a", status=TaskStatus.SUCCESS, duration=1.0)
+        report.results["b"] = _make_result("b", status=TaskStatus.SKIPPED, duration=0.0)
+        s = report.summary()
+        assert s["success"] is True
+        assert s["total_tasks"] == 2
+        assert s["by_status"] == {"success": 1, "skipped": 1}
+        assert s["total_duration_seconds"] == 1.0
+
+    def test_summary_with_none_duration(self) -> None:
+        """未开始/未结束的任务 duration 为 None，不应计入总时长."""
+        report = px.RunReport()
+        spec: TaskSpec[Any] = TaskSpec[Any]("a", _fn)  # type: ignore[arg-type]
+        report.results["a"] = TaskResult(spec=spec, status=TaskStatus.FAILED)
+        s = report.summary()
+        assert s["total_duration_seconds"] == 0.0
+
+    def test_failed_tasks(self) -> None:
+        """failed_tasks 应返回所有失败任务名."""
+        report = px.RunReport()
+        report.results["a"] = _make_result("a", status=TaskStatus.SUCCESS)
+        report.results["b"] = _make_result("b", status=TaskStatus.FAILED, error=ValueError("x"))
+        assert report.failed_tasks() == ["b"]
 
 
-def test_contains() -> None:
-    report = px.RunReport()
-    report.results["a"] = _make_result("a")
-    assert "a" in report
-    assert "b" not in report
+class TestRunReportDescribe:
+    """测试 RunReport 的 describe 方法."""
 
+    def test_describe_success(self) -> None:
+        """应正确描述成功状态和耗时."""
+        report = px.RunReport()
+        report.results["a"] = _make_result("a", status=TaskStatus.SUCCESS, duration=0.5)
+        desc = report.describe()
+        assert "RunReport(success=True)" in desc
+        assert "a: success" in desc
+        assert "0.500s" in desc
 
-def test_iter_and_len() -> None:
-    report = px.RunReport()
-    report.results["a"] = _make_result("a")
-    report.results["b"] = _make_result("b")
-    assert list(report) == ["a", "b"]
-    assert len(report) == 2
+    def test_describe_with_error(self) -> None:
+        """应正确描述失败状态和错误信息."""
+        report = px.RunReport(success=False)
+        report.results["a"] = _make_result("a", status=TaskStatus.FAILED, error=ValueError("boom"), duration=0.1)
+        desc = report.describe()
+        assert "success=False" in desc
+        assert "error=ValueError" in desc
 
-
-def test_summary_success() -> None:
-    report = px.RunReport()
-    report.results["a"] = _make_result("a", status=TaskStatus.SUCCESS, duration=1.0)
-    report.results["b"] = _make_result("b", status=TaskStatus.SKIPPED, duration=0.0)
-    s = report.summary()
-    assert s["success"] is True
-    assert s["total_tasks"] == 2
-    assert s["by_status"] == {"success": 1, "skipped": 1}
-    assert s["total_duration_seconds"] == 1.0
-
-
-def test_summary_with_none_duration() -> None:
-    """未开始/未结束的任务 duration 为 None，不应计入总时长。"""
-    report = px.RunReport()
-    spec: TaskSpec[object] = TaskSpec("a", _fn)  # type: ignore[arg-type]
-    report.results["a"] = TaskResult(spec=spec, status=TaskStatus.FAILED)
-    s = report.summary()
-    assert s["total_duration_seconds"] == 0.0
-
-
-def test_failed_tasks() -> None:
-    report = px.RunReport()
-    report.results["a"] = _make_result("a", status=TaskStatus.SUCCESS)
-    report.results["b"] = _make_result(
-        "b", status=TaskStatus.FAILED, error=ValueError("x")
-    )
-    assert report.failed_tasks() == ["b"]
-
-
-def test_describe_success() -> None:
-    report = px.RunReport()
-    report.results["a"] = _make_result("a", status=TaskStatus.SUCCESS, duration=0.5)
-    desc = report.describe()
-    assert "RunReport(success=True)" in desc
-    assert "a: success" in desc
-    assert "0.500s" in desc
-
-
-def test_describe_with_error() -> None:
-    report = px.RunReport(success=False)
-    report.results["a"] = _make_result(
-        "a", status=TaskStatus.FAILED, error=ValueError("boom"), duration=0.1
-    )
-    desc = report.describe()
-    assert "success=False" in desc
-    assert "error=ValueError" in desc
-
-
-def test_describe_no_duration() -> None:
-    report = px.RunReport()
-    spec: TaskSpec[object] = TaskSpec("a", _fn)  # type: ignore[arg-type]
-    report.results["a"] = TaskResult(spec=spec, status=TaskStatus.PENDING)
-    desc = report.describe()
-    assert "-" in desc  # duration 显示为 "-"
+    def test_describe_no_duration(self) -> None:
+        """无耗时的任务应显示为 '-'."""
+        report = px.RunReport()
+        spec: TaskSpec[Any] = TaskSpec[Any]("a", _fn)  # type: ignore[arg-type]
+        report.results["a"] = TaskResult[Any](spec=spec, status=TaskStatus.PENDING)
+        desc = report.describe()
+        assert "-" in desc  # duration 显示为 "-"

tests/test_runner.py

@@ -0,0 +1,632 @@
+"""Tests for CliRunner: command dispatch, argument parsing, exit codes."""
+
+from __future__ import annotations
+
+import sys
+from typing import Any
+from unittest.mock import patch
+
+import pytest
+
+import pyflowx as px
+from pyflowx import CliExitCode
+from pyflowx.errors import TaskFailedError
+
+# 跨平台的 echo 命令
+if sys.platform == "win32":
+    ECHO_CMD = ["cmd", "/c", "echo"]
+else:
+    ECHO_CMD = ["echo"]
+
+
+# ---------------------------------------------------------------------- #
+# 辅助工厂
+# ---------------------------------------------------------------------- #
+def _echo_graph(name: str = "echo_task", msg: str = "hello") -> px.Graph:
+    """构造一个单任务 echo 图, 用于执行成功场景."""
+    return px.Graph.from_specs([px.TaskSpec(name, cmd=[*ECHO_CMD, msg])])
+
+
+def _failing_graph() -> px.Graph:
+    """构造一个必定失败的单任务图."""
+    return px.Graph.from_specs(
+        [
+            px.TaskSpec(
+                "fail",
+                cmd=["python", "-c", "import sys; sys.exit(1)"],
+            )
+        ]
+    )
+
+
+def _multi_task_graph() -> px.Graph:
+    """构造一个带依赖的多任务图."""
+    return px.Graph.from_specs(
+        [
+            px.TaskSpec("a", cmd=[*ECHO_CMD, "a"]),
+            px.TaskSpec("b", cmd=[*ECHO_CMD, "b"], depends_on=("a",)),
+        ]
+    )
+
+
+# ---------------------------------------------------------------------- #
+# 构造与校验
+# ---------------------------------------------------------------------- #
+class TestCliRunnerConstruction:
+    """测试 CliRunner 的构造与参数校验."""
+
+    def test_requires_at_least_one_command(self) -> None:
+        """没有命令时应抛出 ValueError."""
+        with pytest.raises(ValueError, match="至少需要一个命令"):
+            _ = px.CliRunner()
+
+    def test_accepts_single_graph(self) -> None:
+        """单个命令应正常构造."""
+        runner = px.CliRunner(graphs={"clean": _echo_graph()})
+        assert runner.commands == ["clean"]
+
+    def test_accepts_multiple_graphs(self) -> None:
+        """多个命令应按插入顺序保留."""
+        runner = px.CliRunner(
+            graphs={
+                "clean": _echo_graph("c", "clean"),
+                "build": _echo_graph("b", "build"),
+                "test": _echo_graph("t", "test"),
+            }
+        )
+        assert runner.commands == ["clean", "build", "test"]
+
+    def test_default_strategy_is_sequential(self) -> None:
+        """默认策略应为 Strategy.SEQUENTIAL."""
+        runner = px.CliRunner({"clean": _echo_graph()})
+        assert runner.strategy == "sequential"
+
+    def test_custom_strategy_string(self) -> None:
+        """应支持通过字符串指定策略."""
+        runner = px.CliRunner({"clean": _echo_graph()}, strategy="thread")
+        assert runner.strategy == "thread"
+
+    def test_custom_strategy_enum(self) -> None:
+        """应支持通过 Strategy 枚举指定策略."""
+        runner = px.CliRunner({"clean": _echo_graph()}, strategy="async")
+        assert runner.strategy == "async"
+
+    def test_default_verbose_is_true(self) -> None:
+        """默认 verbose 应为 True."""
+        runner = px.CliRunner({"clean": _echo_graph()})
+        assert runner.verbose is True
+
+    def test_custom_verbose_false(self) -> None:
+        """应支持关闭 verbose."""
+        runner = px.CliRunner({"clean": _echo_graph()}, verbose=False)
+        assert runner.verbose is False
+
+    def test_default_description_is_empty(self) -> None:
+        """默认描述应为空字符串."""
+        runner = px.CliRunner({"clean": _echo_graph()})
+        assert runner.description == ""
+
+    def test_custom_description(self) -> None:
+        """应支持自定义描述."""
+        runner = px.CliRunner({"clean": _echo_graph()}, description="My CLI")
+        assert runner.description == "My CLI"
+
+
+# ---------------------------------------------------------------------- #
+# 属性与内省
+# ---------------------------------------------------------------------- #
+class TestCliRunnerProperties:
+    """测试 CliRunner 的属性访问."""
+
+    def test_commands_returns_list(self) -> None:
+        """commands 应返回列表."""
+        runner = px.CliRunner({"a": _echo_graph(), "b": _echo_graph()})
+        assert isinstance(runner.commands, list)
+
+    def test_graphs_contains_original_graphs(self) -> None:
+        """graphs 应包含原始 Graph 实例."""
+        g = _echo_graph()
+        runner = px.CliRunner({"cmd": g})
+        assert runner.graphs["cmd"] is g
+
+
+# ---------------------------------------------------------------------- #
+# 参数解析
+# ---------------------------------------------------------------------- #
+class TestCliRunnerParser:
+    """测试参数解析器."""
+
+    def test_create_parser_returns_argument_parser(self) -> None:
+        """create_parser 应返回 ArgumentParser."""
+        from argparse import ArgumentParser
+
+        runner = px.CliRunner({"clean": _echo_graph()})
+        parser = runner.create_parser()
+        assert isinstance(parser, ArgumentParser)
+
+    def test_parser_has_command_argument(self) -> None:
+        """解析器应有 command 位置参数."""
+        runner = px.CliRunner({"clean": _echo_graph()})
+        parser = runner.create_parser()
+        parsed = parser.parse_args(["clean"])
+        assert parsed.command == "clean"
+
+    def test_parser_command_is_optional(self) -> None:
+        """command 应为可选参数."""
+        runner = px.CliRunner({"clean": _echo_graph()})
+        parser = runner.create_parser()
+        parsed = parser.parse_args([])
+        assert parsed.command is None
+
+    def test_parser_has_strategy_option(self) -> None:
+        """解析器应有 --strategy 选项."""
+        runner = px.CliRunner({"clean": _echo_graph()})
+        parser = runner.create_parser()
+        parsed = parser.parse_args(["clean", "--strategy", "thread"])
+        assert parsed.strategy == "thread"
+
+    def test_parser_strategy_default(self) -> None:
+        """--strategy 默认值应与构造时一致."""
+        runner = px.CliRunner({"clean": _echo_graph()}, strategy="async")
+        parser = runner.create_parser()
+        parsed = parser.parse_args(["clean"])
+        assert parsed.strategy == "async"
+
+    def test_parser_has_dry_run_flag(self) -> None:
+        """解析器应有 --dry-run 标志."""
+        runner = px.CliRunner({"clean": _echo_graph()})
+        parser = runner.create_parser()
+        parsed = parser.parse_args(["clean", "--dry-run"])
+        assert parsed.dry_run is True
+
+    def test_parser_dry_run_default_false(self) -> None:
+        """--dry-run 默认为 False."""
+        runner = px.CliRunner({"clean": _echo_graph()})
+        parser = runner.create_parser()
+        parsed = parser.parse_args(["clean"])
+        assert parsed.dry_run is False
+
+    def test_parser_has_list_flag(self) -> None:
+        """解析器应有 --list 标志."""
+        runner = px.CliRunner({"clean": _echo_graph()})
+        parser = runner.create_parser()
+        parsed = parser.parse_args(["--list"])
+        assert parsed.list is True
+
+    def test_parser_has_quiet_flag(self) -> None:
+        """解析器应有 --quiet 标志."""
+        runner = px.CliRunner({"clean": _echo_graph()})
+        parser = runner.create_parser()
+        parsed = parser.parse_args(["clean", "--quiet"])
+        assert parsed.quiet is True
+
+    def test_parser_quiet_default_false(self) -> None:
+        """--quiet 默认为 False."""
+        runner = px.CliRunner({"clean": _echo_graph()})
+        parser = runner.create_parser()
+        parsed = parser.parse_args(["clean"])
+        assert parsed.quiet is False
+
+    def test_format_commands_help_contains_all_commands(self) -> None:
+        """帮助文本应包含所有命令."""
+        runner = px.CliRunner(
+            {"clean": _echo_graph("c", "clean"), "build": _echo_graph("b", "build")},
+        )
+        help_text = runner._format_commands_help()
+        assert "clean" in help_text
+        assert "build" in help_text
+        assert "可用命令" in help_text
+
+
+# ---------------------------------------------------------------------- #
+# 执行: 成功路径
+# ---------------------------------------------------------------------- #
+class TestCliRunnerRunSuccess:
+    """测试 CliRunner.run 的成功执行路径."""
+
+    def test_run_valid_command_returns_zero(self) -> None:
+        """有效命令执行成功应返回 0."""
+        runner = px.CliRunner({"clean": _echo_graph()})
+        exit_code = runner.run(["clean"])
+        assert exit_code == CliExitCode.SUCCESS.value
+
+    def test_run_executes_correct_graph(self) -> None:
+        """应执行用户指定的命令对应的图."""
+        executed: list[str] = []
+
+        def track_a() -> None:
+            executed.append("a")
+
+        def track_b() -> None:
+            executed.append("b")
+
+        runner = px.CliRunner(
+            {
+                "a": px.Graph.from_specs([px.TaskSpec("a", track_a)]),
+                "b": px.Graph.from_specs([px.TaskSpec("b", track_b)]),
+            }
+        )
+        _ = runner.run(["b"])
+        assert executed == ["b"]
+
+    def test_run_multi_task_graph(self) -> None:
+        """应能执行带依赖的多任务图."""
+        runner = px.CliRunner({"multi": _multi_task_graph()})
+        exit_code = runner.run(["multi"])
+        assert exit_code == CliExitCode.SUCCESS.value
+
+    def test_run_with_strategy_override(self) -> None:
+        """应支持通过 --strategy 覆盖默认策略."""
+        runner = px.CliRunner({"echo": _echo_graph()})
+        exit_code = runner.run(["echo", "--strategy", "thread"])
+        assert exit_code == CliExitCode.SUCCESS.value
+
+    def test_run_with_dry_run(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """--dry-run 应只打印计划不执行."""
+        runner = px.CliRunner({"echo": _echo_graph()})
+        exit_code = runner.run(["echo", "--dry-run"])
+        assert exit_code == CliExitCode.SUCCESS.value
+        captured = capsys.readouterr()
+        assert "Dry run" in captured.out
+
+
+# ---------------------------------------------------------------------- #
+# 执行: verbose 模式
+# ---------------------------------------------------------------------- #
+class TestCliRunnerVerbose:
+    """测试 verbose 模式."""
+
+    def test_verbose_default_prints_lifecycle(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """默认 verbose=True 应打印任务生命周期."""
+        runner = px.CliRunner({"echo": _echo_graph()})
+        _ = runner.run(["echo"])
+        captured = capsys.readouterr()
+        # verbose 模式下应打印任务生命周期
+        assert "[verbose]" in captured.out
+
+    def test_quiet_flag_disables_verbose(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """--quiet 应关闭 verbose 输出."""
+        runner = px.CliRunner({"echo": _echo_graph()})
+        _ = runner.run(["echo", "--quiet"])
+        captured = capsys.readouterr()
+        # quiet 模式下不应有 [verbose] 前缀的输出
+        assert "[verbose]" not in captured.out
+
+    def test_verbose_false_constructor_disables_verbose(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """构造时 verbose=False 应关闭 verbose 输出."""
+        runner = px.CliRunner({"echo": _echo_graph()}, verbose=False)
+        _ = runner.run(["echo"])
+        captured = capsys.readouterr()
+        assert "[verbose]" not in captured.out
+
+    def test_verbose_prints_command_for_cmd_task(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """verbose 模式下 cmd 任务应打印执行的命令."""
+        runner = px.CliRunner({"echo": _echo_graph(msg="verbose-test")})
+        _ = runner.run(["echo"])
+        captured = capsys.readouterr()
+        # 应打印执行的命令
+        assert "执行命令" in captured.out or "执行 Shell" in captured.out
+        # 应打印返回码
+        assert "返回码" in captured.out
+
+    def test_verbose_prints_success_lifecycle(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """verbose 模式下成功任务应打印成功信息."""
+        runner = px.CliRunner({"echo": _echo_graph()})
+        _ = runner.run(["echo"])
+        captured = capsys.readouterr()
+        assert "成功" in captured.out
+
+    def test_verbose_prints_skip_lifecycle(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """verbose 模式下跳过的任务应打印跳过信息."""
+        graph = px.Graph.from_specs(
+            [
+                px.TaskSpec(
+                    "skip_me",
+                    cmd=[*ECHO_CMD, "skip"],
+                    conditions=(lambda: False,),
+                ),
+            ]
+        )
+        runner = px.CliRunner({"skip": graph})
+        _ = runner.run(["skip"])
+        captured = capsys.readouterr()
+        assert "跳过" in captured.out
+
+    def test_verbose_prints_failure_lifecycle(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """verbose 模式下失败任务应打印失败信息."""
+        runner = px.CliRunner({"fail": _failing_graph()})
+        _ = runner.run(["fail"])
+        captured = capsys.readouterr()
+        # 失败信息可能出现在 stdout (verbose) 或 stderr (PyFlowXError)
+        combined = captured.out + captured.err
+        assert "失败" in combined or "错误" in combined
+
+
+# ---------------------------------------------------------------------- #
+# 执行: 失败路径
+# ---------------------------------------------------------------------- #
+class TestCliRunnerRunFailure:
+    """测试 CliRunner.run 的失败执行路径."""
+
+    def test_run_unknown_command_returns_failure(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """未知命令应返回 1 并打印错误."""
+        runner = px.CliRunner({"clean": _echo_graph()})
+        exit_code = runner.run(["unknown"])
+        assert exit_code == CliExitCode.FAILURE.value
+        captured = capsys.readouterr()
+        assert "未知命令" in captured.err
+        assert "clean" in captured.err
+
+    def test_run_no_command_returns_failure(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """无命令时应返回 1 并打印帮助."""
+        runner = px.CliRunner({"clean": _echo_graph()})
+        exit_code = runner.run([])
+        assert exit_code == CliExitCode.FAILURE.value
+        captured = capsys.readouterr()
+        assert "可用命令" in captured.out or "可用命令" in captured.err
+
+    def test_run_failing_task_returns_failure(self) -> None:
+        """任务失败时应返回 1."""
+        runner = px.CliRunner({"fail": _failing_graph()})
+        exit_code = runner.run(["fail"])
+        assert exit_code == CliExitCode.FAILURE.value
+
+    def test_run_failing_task_prints_error(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """任务失败时应打印错误信息."""
+        runner = px.CliRunner({"fail": _failing_graph()})
+        _ = runner.run(["fail"])
+        captured = capsys.readouterr()
+        # PyFlowXError 信息应输出到 stderr
+        assert "错误" in captured.err or "失败" in captured.err
+
+
+# ---------------------------------------------------------------------- #
+# 执行: --list 选项
+# ---------------------------------------------------------------------- #
+class TestCliRunnerList:
+    """测试 --list 选项."""
+
+    def test_list_returns_success(self) -> None:
+        """--list 应返回 0."""
+        runner = px.CliRunner({"clean": _echo_graph(), "build": _echo_graph()})
+        exit_code = runner.run(["--list"])
+        assert exit_code == CliExitCode.SUCCESS.value
+
+    def test_list_prints_all_commands(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """--list 应打印所有命令."""
+        runner = px.CliRunner(
+            {
+                "clean": _echo_graph("c", "clean"),
+                "build": _echo_graph("b", "build"),
+                "test": _echo_graph("t", "test"),
+            }
+        )
+        _ = runner.run(["--list"])
+        captured = capsys.readouterr()
+        assert "clean" in captured.out
+        assert "build" in captured.out
+        assert "test" in captured.out
+
+    def test_list_does_not_execute_any_graph(self) -> None:
+        """--list 不应执行任何图."""
+        executed: list[str] = []
+
+        def track() -> None:
+            executed.append("ran")
+
+        runner = px.CliRunner({"a": px.Graph.from_specs([px.TaskSpec("a", track)])})
+        _ = runner.run(["--list"])
+        assert executed == []
+
+
+# ---------------------------------------------------------------------- #
+# 错误处理
+# ---------------------------------------------------------------------- #
+class TestCliRunnerErrorHandling:
+    """测试错误处理."""
+
+    def test_keyboard_interrupt_returns_130(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """KeyboardInterrupt 应返回 130."""
+        runner = px.CliRunner({"echo": _echo_graph()})
+
+        def raise_interrupt(*_args: Any, **_kwargs: Any) -> None:
+            raise KeyboardInterrupt
+
+        with patch("pyflowx.runner.run", side_effect=raise_interrupt):
+            exit_code = runner.run(["echo"])
+        assert exit_code == CliExitCode.INTERRUPTED.value
+        captured = capsys.readouterr()
+        assert "取消" in captured.err
+
+    def test_pyflowx_error_returns_failure(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """PyFlowXError 应返回 1."""
+        runner = px.CliRunner({"echo": _echo_graph()})
+
+        def raise_error(*_args: Any, **_kwargs: Any) -> None:
+            raise TaskFailedError("echo", RuntimeError("boom"), 1)
+
+        with patch("pyflowx.runner.run", side_effect=raise_error):
+            exit_code = runner.run(["echo"])
+        assert exit_code == CliExitCode.FAILURE.value
+        captured = capsys.readouterr()
+        assert "错误" in captured.err
+
+    def test_generic_exception_propagates(self) -> None:
+        """非 PyFlowXError 的异常应向上传播."""
+
+        class CustomError(Exception):
+            pass
+
+        runner = px.CliRunner({"echo": _echo_graph()})
+
+        def raise_custom(*_args: Any, **_kwargs: Any) -> None:
+            raise CustomError("unexpected")
+
+        with patch("pyflowx.runner.run", side_effect=raise_custom), pytest.raises(CustomError):
+            _ = runner.run(["echo"])
+
+
+# ---------------------------------------------------------------------- #
+# run_cli
+# ---------------------------------------------------------------------- #
+class TestCliRunnerRunCli:
+    """测试 run_cli 方法."""
+
+    def test_run_cli_calls_sys_exit(self) -> None:
+        """run_cli 应调用 sys.exit."""
+        runner = px.CliRunner({"echo": _echo_graph()})
+        with pytest.raises(SystemExit) as exc_info:
+            runner.run_cli(["echo"])
+        assert exc_info.value.code == CliExitCode.SUCCESS.value
+
+    def test_run_cli_exit_code_on_failure(self) -> None:
+        """run_cli 失败时应以非零码退出."""
+        runner = px.CliRunner({"fail": _failing_graph()})
+        with pytest.raises(SystemExit) as exc_info:
+            runner.run_cli(["fail"])
+        assert exc_info.value.code == CliExitCode.FAILURE.value
+
+    def test_run_cli_no_args_uses_sys_argv(self, monkeypatch: pytest.MonkeyPatch) -> None:
+        """run_cli 无参数时应使用 sys.argv."""
+        monkeypatch.setattr(sys, "argv", ["pymake", "echo"])
+        runner = px.CliRunner({"echo": _echo_graph()})
+        with pytest.raises(SystemExit) as exc_info:
+            runner.run_cli()
+        assert exc_info.value.code == CliExitCode.SUCCESS.value
+
+
+# ---------------------------------------------------------------------- #
+# 退出码枚举
+# ---------------------------------------------------------------------- #
+class TestCliExitCode:
+    """测试 CliExitCode 枚举."""
+
+    def test_success_is_zero(self) -> None:
+        assert CliExitCode.SUCCESS.value == 0
+
+    def test_failure_is_one(self) -> None:
+        assert CliExitCode.FAILURE.value == 1
+
+    def test_interrupted_is_130(self) -> None:
+        assert CliExitCode.INTERRUPTED.value == 130
+
+    def test_exit_codes_are_distinct(self) -> None:
+        values = {e.value for e in CliExitCode}
+        assert len(values) == 3
+
+
+# ---------------------------------------------------------------------- #
+# 集成测试
+# ---------------------------------------------------------------------- #
+class TestCliRunnerIntegration:
+    """集成测试: CliRunner + Graph + TaskSpec + 条件."""
+
+    def test_condition_skipped_command_succeeds(self) -> None:
+        """条件不满足时任务跳过, 整体仍成功."""
+        graph = px.Graph.from_specs(
+            [
+                px.TaskSpec(
+                    "skip_me",
+                    cmd=[*ECHO_CMD, "should not run"],
+                    conditions=(lambda: False,),
+                ),
+            ]
+        )
+        runner = px.CliRunner({"skip": graph})
+        exit_code = runner.run(["skip"])
+        assert exit_code == CliExitCode.SUCCESS.value
+
+    def test_condition_met_command_succeeds(self) -> None:
+        """条件满足时任务执行, 整体成功."""
+        graph = px.Graph.from_specs(
+            [
+                px.TaskSpec(
+                    "run_me",
+                    cmd=[*ECHO_CMD, "should run"],
+                    conditions=(lambda: True,),
+                ),
+            ]
+        )
+        runner = px.CliRunner({"run": graph})
+        exit_code = runner.run(["run"])
+        assert exit_code == CliExitCode.SUCCESS.value
+
+    def test_diamond_dependency_graph(self) -> None:
+        """菱形依赖图应正确执行."""
+        order: list[str] = []
+
+        def make(name: str) -> Any:
+            def fn() -> str:
+                order.append(name)
+                return name
+
+            return fn
+
+        graph = px.Graph.from_specs(
+            [
+                px.TaskSpec("a", make("a")),
+                px.TaskSpec("b", make("b"), depends_on=("a",)),
+                px.TaskSpec("c", make("c"), depends_on=("a",)),
+                px.TaskSpec("d", make("d"), depends_on=("b", "c")),
+            ]
+        )
+        runner = px.CliRunner({"diamond": graph})
+        exit_code = runner.run(["diamond"])
+        assert exit_code == CliExitCode.SUCCESS.value
+        assert order == ["a", "b", "c", "d"]
+
+    def test_mixed_fn_and_cmd_commands(self) -> None:
+        """混合 fn 和 cmd 的命令应都能执行."""
+        runner = px.CliRunner(
+            {
+                "fn_cmd": px.Graph.from_specs([px.TaskSpec("fn", fn=lambda: "fn-result")]),
+                "cmd_cmd": px.Graph.from_specs([px.TaskSpec("cmd", cmd=[*ECHO_CMD, "cmd-result"])]),
+            }
+        )
+        assert runner.run(["fn_cmd"]) == CliExitCode.SUCCESS.value
+        assert runner.run(["cmd_cmd"]) == CliExitCode.SUCCESS.value
+
+    def test_command_with_cwd(self) -> None:
+        """带 cwd 的命令应正确执行."""
+        import tempfile
+        from pathlib import Path
+
+        with tempfile.TemporaryDirectory() as tmpdir:
+            if sys.platform == "win32":
+                ls_cmd = ["cmd", "/c", "dir"]
+            else:
+                ls_cmd = ["ls"]
+
+            graph = px.Graph.from_specs([px.TaskSpec("ls", cmd=ls_cmd, cwd=Path(tmpdir))])
+            runner = px.CliRunner({"ls": graph})
+            exit_code = runner.run(["ls"])
+            assert exit_code == CliExitCode.SUCCESS.value
+
+
+# ---------------------------------------------------------------------- #
+# _apply_verbose_to_graph (补充覆盖)
+# ---------------------------------------------------------------------- #
+class TestApplyVerboseToGraph:
+    """测试 _apply_verbose_to_graph 函数 (补充覆盖)."""
+
+    def test_specs_with_matching_verbose_are_kept(self) -> None:
+        """spec.verbose 已与目标值匹配时应保留原 spec (覆盖 runner.py line 57)."""
+        from pyflowx.runner import _apply_verbose_to_graph
+
+        # 创建 verbose=True 的 spec
+        graph = px.Graph.from_specs([px.TaskSpec("a", cmd=[*ECHO_CMD, "a"], verbose=True)])
+        # 应用 verbose=True, spec.verbose 已匹配, 应保留原 spec
+        new_graph = _apply_verbose_to_graph(graph, verbose=True)
+        new_spec = new_graph.spec("a")
+        assert new_spec.verbose is True
+
+    def test_specs_with_non_matching_verbose_are_replaced(self) -> None:
+        """spec.verbose 与目标值不匹配时应替换 (覆盖 else 分支)."""
+        from pyflowx.runner import _apply_verbose_to_graph
+
+        # 创建 verbose=False 的 spec
+        graph = px.Graph.from_specs([px.TaskSpec("a", cmd=[*ECHO_CMD, "a"], verbose=False)])
+        # 应用 verbose=True, spec.verbose 不匹配, 应替换
+        new_graph = _apply_verbose_to_graph(graph, verbose=True)
+        new_spec = new_graph.spec("a")
+        assert new_spec.verbose is True

tests/test_storage.py

@@ -5,6 +5,7 @@ from __future__ import annotations
 import json
 import os
 import tempfile
+from pathlib import Path
 from typing import Any
 
 import pytest
@@ -13,6 +14,14 @@ from pyflowx.errors import StorageError
 from pyflowx.storage import JSONBackend, MemoryBackend, StateBackend, resolve_backend
 
 
+@pytest.fixture
+def mock_tmp_json(tmp_path: Path) -> Path:
+    """模拟临时 JSON 文件。"""
+    path = tmp_path / "state.json"
+    path.touch()
+    return path
+
+
 # ---------------------------------------------------------------------- #
 # MemoryBackend
 # ---------------------------------------------------------------------- #
@@ -39,7 +48,7 @@ def test_memory_backend_get_missing_raises() -> None:
 # ---------------------------------------------------------------------- #
 def test_json_backend_save_and_load() -> None:
     with tempfile.TemporaryDirectory() as tmp:
-        path = os.path.join(tmp, "state.json")
+        path = str(Path(tmp) / "state.json")
         b = JSONBackend(path)
         b.save("a", {"x": 1})
         b.save("b", [1, 2, 3])
@@ -53,20 +62,20 @@ def test_json_backend_save_and_load() -> None:
 
 def test_json_backend_clear() -> None:
     with tempfile.TemporaryDirectory() as tmp:
-        path = os.path.join(tmp, "state.json")
+        path = str(Path(tmp) / "state.json")
         b = JSONBackend(path)
         b.save("a", 1)
         b.clear()
         assert not b.has("a")
         # 文件应被写入空 dict
-        with open(path, "r", encoding="utf-8") as fh:
+        with open(path, encoding="utf-8") as fh:
             assert json.load(fh) == {}
 
 
 def test_json_backend_nonexistent_file_starts_empty() -> None:
     """文件不存在时应正常初始化为空。"""
     with tempfile.TemporaryDirectory() as tmp:
-        path = os.path.join(tmp, "absent.json")
+        path = str(Path(tmp) / "absent.json")
         b = JSONBackend(path)
         assert dict(b.load()) == {}
         assert not b.has("anything")
@@ -75,7 +84,7 @@ def test_json_backend_nonexistent_file_starts_empty() -> None:
 def test_json_backend_non_serialisable_raises() -> None:
     """不可 JSON 序列化的值应抛 StorageError，且不污染内存状态。"""
     with tempfile.TemporaryDirectory() as tmp:
-        path = os.path.join(tmp, "state.json")
+        path = str(Path(tmp) / "state.json")
         b = JSONBackend(path)
         with pytest.raises(StorageError):
             b.save("a", object())  # object() 不可序列化
@@ -91,12 +100,12 @@ def test_json_backend_flush_type_error(monkeypatch: pytest.MonkeyPatch) -> None:
     import json as _json
 
     with tempfile.TemporaryDirectory() as tmp:
-        path = os.path.join(tmp, "state.json")
+        path = str(Path(tmp) / "state.json")
         b = JSONBackend(path)
 
         original_dump = _json.dump
 
-        def flaky_dump(*args: Any, **kwargs: Any) -> None:
+        def flaky_dump(*_args: Any, **_kwargs: Any) -> None:
             raise TypeError("simulated flush failure")
 
         monkeypatch.setattr(_json, "dump", flaky_dump)
@@ -109,15 +118,15 @@ def test_json_backend_flush_type_error(monkeypatch: pytest.MonkeyPatch) -> None:
 def test_json_backend_flush_os_error(monkeypatch: pytest.MonkeyPatch) -> None:
     """_flush 时 OSError 应转为 StorageError。"""
     with tempfile.TemporaryDirectory() as tmp:
-        path = os.path.join(tmp, "state.json")
+        path = str(Path(tmp) / "state.json")
         b = JSONBackend(path)
 
         original_replace = os.replace
 
-        def fail_replace(*args: Any, **kwargs: Any) -> None:
+        def fail_replace(*_args: Any, **_kwargs: Any) -> None:
             raise OSError("simulated os.replace failure")
 
-        monkeypatch.setattr(os, "replace", fail_replace)
+        monkeypatch.setattr(Path, "replace", fail_replace)
         with pytest.raises(StorageError, match="cannot write"):
             b.save("a", 1)
         monkeypatch.setattr(os, "replace", original_replace)
@@ -126,21 +135,19 @@ def test_json_backend_flush_os_error(monkeypatch: pytest.MonkeyPatch) -> None:
 def test_json_backend_corrupt_file_raises() -> None:
     """损坏的 JSON 文件应抛 StorageError。"""
     with tempfile.TemporaryDirectory() as tmp:
-        path = os.path.join(tmp, "state.json")
+        path = str(Path(tmp) / "state.json")
         with open(path, "w", encoding="utf-8") as fh:
-            fh.write("{not valid json")
+            _ = fh.write("{not valid json")
         with pytest.raises(StorageError):
-            JSONBackend(path)
+            _ = JSONBackend(path)
 
 
-def test_json_backend_non_dict_content_ignored() -> None:
+def test_json_backend_non_dict_content_ignored(tmp_path: Path) -> None:
     """文件内容是合法 JSON 但非 dict 时应被忽略（保持空）。"""
-    with tempfile.TemporaryDirectory() as tmp:
-        path = os.path.join(tmp, "state.json")
-        with open(path, "w", encoding="utf-8") as fh:
-            json.dump([1, 2, 3], fh)  # list 而非 dict
-        b = JSONBackend(path)
-        assert dict(b.load()) == {}
+    path = tmp_path / "state.json"
+    _ = path.write_text(json.dumps([1, 2, 3]))  # list 而非 dict
+    b = JSONBackend(str(path))
+    assert dict(b.load()) == {}
 
 
 # ---------------------------------------------------------------------- #

tests/test_task_edge_cases.py

@@ -0,0 +1,309 @@
+"""Tests for task module edge cases."""
+
+import subprocess
+import sys
+import tempfile
+from pathlib import Path
+from unittest.mock import patch
+
+import pytest
+
+import pyflowx as px
+from pyflowx.task import TaskSpec
+
+# 跨平台的 echo 命令
+if sys.platform == "win32":
+    ECHO_CMD = ["cmd", "/c", "echo"]
+else:
+    ECHO_CMD = ["echo"]
+
+
+def test_taskspec_wrap_cmd_with_list():
+    """Test TaskSpec._wrap_cmd with command list."""
+    spec = TaskSpec("test", cmd=[*ECHO_CMD, "hello"])
+    wrapped_fn = spec.effective_fn
+    assert wrapped_fn is not None
+
+
+def test_taskspec_wrap_cmd_with_string():
+    """Test TaskSpec._wrap_cmd with command string."""
+    if sys.platform == "win32":
+        cmd_str = "cmd /c echo hello"
+    else:
+        cmd_str = "echo hello"
+    spec = TaskSpec("test", cmd=cmd_str)
+    wrapped_fn = spec.effective_fn
+    assert wrapped_fn is not None
+
+
+def test_taskspec_wrap_cmd_with_timeout():
+    """Test TaskSpec._wrap_cmd with timeout."""
+    spec = TaskSpec("test", cmd=[*ECHO_CMD, "hello"], timeout=0.1)
+    wrapped_fn = spec.effective_fn
+
+    # Should not raise timeout error for quick command
+    result = wrapped_fn()
+    assert result is None
+
+
+def test_taskspec_wrap_cmd_with_cwd():
+    """Test TaskSpec._wrap_cmd with working directory."""
+    with tempfile.TemporaryDirectory() as tmpdir:
+        spec = TaskSpec("test", cmd=[*ECHO_CMD, "hello"], cwd=Path(tmpdir))
+        wrapped_fn = spec.effective_fn
+        result = wrapped_fn()
+        assert result is None
+
+
+def test_taskspec_wrap_cmd_verbose():
+    """Test TaskSpec._wrap_cmd with verbose=True."""
+    spec = TaskSpec("test", cmd=[*ECHO_CMD, "hello"], verbose=True)
+    wrapped_fn = spec.effective_fn
+
+    # Should print verbose output
+    result = wrapped_fn()
+    assert result is None
+
+
+def test_taskspec_wrap_cmd_error():
+    """Test TaskSpec._wrap_cmd handles command error."""
+    spec = TaskSpec("test", cmd=["python", "-c", "import sys; sys.exit(1)"])
+    wrapped_fn = spec.effective_fn
+
+    with pytest.raises(RuntimeError, match="命令执行失败"):
+        _ = wrapped_fn()
+
+
+def test_taskspec_wrap_cmd_file_not_found():
+    """Test TaskSpec._wrap_cmd handles file not found."""
+    spec = TaskSpec("test", cmd=["nonexistent_command"])
+    wrapped_fn = spec.effective_fn
+
+    with pytest.raises(RuntimeError, match="命令未找到"):
+        _ = wrapped_fn()
+
+
+def test_taskspec_wrap_cmd_shell_file_not_found():
+    """Test TaskSpec._wrap_cmd handles shell command file not found."""
+    spec = TaskSpec("test", cmd="nonexistent_shell_command")
+    wrapped_fn = spec.effective_fn
+
+    # Shell commands don't raise FileNotFoundError
+    # They just return non-zero exit code
+    with pytest.raises(RuntimeError):
+        _ = wrapped_fn()
+
+
+def test_taskspec_no_fn_no_cmd():
+    """Test TaskSpec raises error when no fn or cmd."""
+    with pytest.raises(ValueError, match="必须提供 fn 或 cmd 参数"):
+        _ = TaskSpec("test")
+
+
+def test_taskspec_conditions_check():
+    """Test TaskSpec.should_execute with conditions."""
+    spec = px.TaskSpec(
+        "test",
+        fn=lambda: "result",
+        conditions=(lambda: True,),
+    )
+
+    assert spec.should_execute() is True
+
+
+def test_taskspec_conditions_false():
+    """Test TaskSpec.should_execute with false conditions."""
+    spec = px.TaskSpec(
+        "test",
+        fn=lambda: "result",
+        conditions=(lambda: False,),
+    )
+
+    assert spec.should_execute() is False
+
+
+def test_taskspec_conditions_multiple():
+    """Test TaskSpec.should_execute with multiple conditions."""
+    spec = px.TaskSpec(
+        "test",
+        fn=lambda: "result",
+        conditions=(lambda: True, lambda: True, lambda: True),
+    )
+
+    assert spec.should_execute() is True
+
+
+def test_taskspec_conditions_multiple_one_false():
+    """Test TaskSpec.should_execute with one false condition."""
+    spec = px.TaskSpec(
+        "test",
+        fn=lambda: "result",
+        conditions=(lambda: True, lambda: False, lambda: True),
+    )
+
+    assert spec.should_execute() is False
+
+
+def test_taskspec_list_cmd_timeout_mocked():
+    """Test TaskSpec._wrap_cmd handles list command timeout (mocked)."""
+    spec = TaskSpec("test", cmd=["sleep", "10"], timeout=0.1)
+    wrapped_fn = spec.effective_fn
+
+    with patch(
+        "subprocess.run", side_effect=subprocess.TimeoutExpired(cmd=["sleep", "10"], timeout=0.1)
+    ), pytest.raises(RuntimeError, match="命令执行超时"):
+        _ = wrapped_fn()
+
+
+def test_taskspec_shell_cmd_timeout_mocked():
+    """Test TaskSpec._wrap_cmd handles shell command timeout (mocked)."""
+    spec = TaskSpec("test", cmd="sleep 10", timeout=0.1)
+    wrapped_fn = spec.effective_fn
+
+    with patch("subprocess.run", side_effect=subprocess.TimeoutExpired(cmd="sleep 10", timeout=0.1)), pytest.raises(
+        RuntimeError, match="Shell 命令执行超时"
+    ):
+        _ = wrapped_fn()
+
+
+def test_taskspec_shell_cmd_file_not_found_mocked():
+    """Test TaskSpec._wrap_cmd handles shell command FileNotFoundError (mocked)."""
+    spec = TaskSpec("test", cmd="nonexistent_shell_command")
+    wrapped_fn = spec.effective_fn
+
+    with patch("subprocess.run", side_effect=FileNotFoundError("not found")), pytest.raises(
+        RuntimeError, match="Shell 命令未找到"
+    ):
+        _ = wrapped_fn()
+
+
+def test_taskspec_shell_cmd_with_cwd_verbose(capsys):
+    """Test TaskSpec._wrap_cmd with shell command, cwd and verbose=True."""
+    with tempfile.TemporaryDirectory() as tmpdir:
+        if sys.platform == "win32":
+            shell_cmd = "cmd /c echo hello"
+        else:
+            shell_cmd = "echo hello"
+        spec = TaskSpec("test", cmd=shell_cmd, cwd=Path(tmpdir), verbose=True)
+        wrapped_fn = spec.effective_fn
+        result = wrapped_fn()
+        assert result is None
+        captured = capsys.readouterr()
+        assert "执行 Shell" in captured.out
+        assert "工作目录" in captured.out
+
+
+def test_taskspec_list_cmd_os_error_mocked():
+    """Test TaskSpec._wrap_cmd handles list command OSError (mocked)."""
+    spec = TaskSpec("test", cmd=["ls"])
+    wrapped_fn = spec.effective_fn
+
+    with patch("subprocess.run", side_effect=OSError("os error")), pytest.raises(RuntimeError, match="命令执行异常"):
+        _ = wrapped_fn()
+
+
+def test_taskspec_shell_cmd_os_error_mocked():
+    """Test TaskSpec._wrap_cmd handles shell command OSError (mocked)."""
+    spec = TaskSpec("test", cmd="ls")
+    wrapped_fn = spec.effective_fn
+
+    with patch("subprocess.run", side_effect=OSError("os error")), pytest.raises(
+        RuntimeError, match="Shell 命令执行异常"
+    ):
+        _ = wrapped_fn()
+
+
+# ---------------------------------------------------------------------- #
+# skip_if_missing
+# ---------------------------------------------------------------------- #
+def test_skip_if_missing_with_available_command():
+    """skip_if_missing=True 时，命令存在应返回 True."""
+    # python 命令在测试环境中一定存在
+    spec = TaskSpec("test", cmd=["python", "--version"], skip_if_missing=True)
+    assert spec.should_execute() is True
+
+
+def test_skip_if_missing_with_missing_command():
+    """skip_if_missing=True 时，命令不存在应返回 False."""
+    spec = TaskSpec("test", cmd=["definitely_not_installed_app_xyz"], skip_if_missing=True)
+    assert spec.should_execute() is False
+
+
+def test_skip_if_missing_false_with_missing_command():
+    """skip_if_missing=False 时，命令不存在也应返回 True（不检查）."""
+    spec = TaskSpec("test", cmd=["definitely_not_installed_app_xyz"], skip_if_missing=False)
+    assert spec.should_execute() is True
+
+
+def test_skip_if_missing_with_shell_cmd_not_checked():
+    """skip_if_missing=True 时，shell 命令（str）不检查，应返回 True."""
+    spec = TaskSpec("test", cmd="definitely_not_installed_app_xyz", skip_if_missing=True)
+    assert spec.should_execute() is True
+
+
+def test_skip_if_missing_with_callable_cmd_not_checked():
+    """skip_if_missing=True 时，Callable 命令不检查，应返回 True."""
+
+    def custom_cmd() -> int:
+        return 0
+
+    spec = TaskSpec("test", cmd=custom_cmd, skip_if_missing=True)
+    assert spec.should_execute() is True
+
+
+def test_skip_if_missing_with_fn_not_checked():
+    """skip_if_missing=True 时，fn 任务不检查命令，应返回 True."""
+
+    def my_fn() -> int:
+        return 0
+
+    spec = TaskSpec("test", fn=my_fn, skip_if_missing=True)
+    assert spec.should_execute() is True
+
+
+def test_skip_if_missing_with_empty_cmd_list():
+    """skip_if_missing=True 时，空命令列表应返回 True（不检查）."""
+    spec = TaskSpec("test", cmd=[""], skip_if_missing=True)
+    # 空字符串命令，shutil.which 返回 None
+    # 但 cmd[0] 是空字符串，shutil.which("") 返回 None
+    assert spec.should_execute() is False
+
+
+def test_skip_if_missing_combined_with_conditions():
+    """skip_if_missing=True 与 conditions 组合使用."""
+    # conditions 返回 False，应跳过
+    spec = TaskSpec(
+        "test",
+        cmd=["python", "--version"],
+        skip_if_missing=True,
+        conditions=(lambda: False,),
+    )
+    assert spec.should_execute() is False
+
+    # conditions 返回 True，命令存在，应执行
+    spec = TaskSpec(
+        "test",
+        cmd=["python", "--version"],
+        skip_if_missing=True,
+        conditions=(lambda: True,),
+    )
+    assert spec.should_execute() is True
+
+    # conditions 返回 True，命令不存在，应跳过
+    spec = TaskSpec(
+        "test",
+        cmd=["definitely_not_installed_app_xyz"],
+        skip_if_missing=True,
+        conditions=(lambda: True,),
+    )
+    assert spec.should_execute() is False
+
+
+def test_skip_if_missing_skips_task_in_run():
+    """skip_if_missing=True 时，命令不存在的任务在 run 中应被跳过."""
+    spec = TaskSpec("missing_cmd", cmd=["definitely_not_installed_app_xyz"], skip_if_missing=True)
+    graph = px.Graph.from_specs([spec])
+    report = px.run(graph, strategy="sequential")
+    assert report.success is True
+    result = report.result_of("missing_cmd")
+    assert result.status == px.TaskStatus.SKIPPED

tests/test_taskspec_commands.py

@@ -0,0 +1,508 @@
+"""测试 TaskSpec 的命令和条件执行功能."""
+
+import sys
+from pathlib import Path
+from typing import Any
+
+import pytest
+
+import pyflowx as px
+from pyflowx.conditions import (
+    IS_LINUX,
+    IS_MACOS,
+    IS_WINDOWS,
+    BuiltinConditions,
+)
+
+# 跨平台的 echo 命令
+if sys.platform == "win32":
+    ECHO_CMD = ["cmd", "/c", "echo"]
+else:
+    ECHO_CMD = ["echo"]
+
+
+def test_taskspec_with_cmd_list():
+    """测试使用命令列表的 TaskSpec."""
+    graph = px.Graph.from_specs(
+        [
+            px.TaskSpec("echo_test", cmd=[*ECHO_CMD, "hello"]),
+        ]
+    )
+
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+    assert "echo_test" in report.results
+    assert report.results["echo_test"].status == px.TaskStatus.SUCCESS
+
+
+def test_taskspec_with_cmd_string():
+    """测试使用 shell 命令字符串的 TaskSpec."""
+    if sys.platform == "win32":
+        shell_cmd = 'cmd /c "echo hello from shell"'
+    else:
+        shell_cmd = "echo 'hello from shell'"
+
+    graph = px.Graph.from_specs(
+        [
+            px.TaskSpec("shell_test", cmd=shell_cmd),
+        ]
+    )
+
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+    assert "shell_test" in report.results
+    assert report.results["shell_test"].status == px.TaskStatus.SUCCESS
+
+
+def test_taskspec_with_conditions_skip():
+    """测试条件不满足时任务被跳过."""
+
+    # 创建一个永远不会满足的条件
+    def never_true():
+        return False
+
+    graph = px.Graph.from_specs(
+        [
+            px.TaskSpec(
+                "should_skip",
+                cmd=[*ECHO_CMD, "this should not run"],
+                conditions=(never_true,),
+            ),
+        ]
+    )
+
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+    assert "should_skip" in report.results
+    assert report.results["should_skip"].status == px.TaskStatus.SKIPPED
+
+
+def test_taskspec_with_conditions_execute():
+    """测试条件满足时任务正常执行."""
+
+    # 创建一个总是满足的条件
+    def always_true():
+        return True
+
+    graph = px.Graph.from_specs(
+        [
+            px.TaskSpec(
+                "should_run",
+                cmd=[*ECHO_CMD, "this should run"],
+                conditions=(always_true,),
+            ),
+        ]
+    )
+
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+    assert "should_run" in report.results
+    assert report.results["should_run"].status == px.TaskStatus.SUCCESS
+
+
+def test_platform_conditions():
+    """测试平台条件."""
+    if sys.platform == "win32":
+        win_cmd = ["cmd", "/c", "echo", "Windows"]
+        posix_cmd = ["echo", "POSIX"]
+    else:
+        win_cmd = ["echo", "Windows"]
+        posix_cmd = ["echo", "POSIX"]
+
+    graph = px.Graph.from_specs(
+        [
+            px.TaskSpec(
+                "win_task",
+                cmd=win_cmd,
+                conditions=(IS_WINDOWS,),
+            ),
+            px.TaskSpec(
+                "linux_task",
+                cmd=posix_cmd,
+                conditions=(IS_LINUX,),
+            ),
+            px.TaskSpec(
+                "macos_task",
+                cmd=posix_cmd,
+                conditions=(IS_MACOS,),
+            ),
+        ]
+    )
+
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+
+    # 检查只有当前平台的任务执行了
+    if sys.platform == "win32":
+        assert report.results["win_task"].status == px.TaskStatus.SUCCESS
+        assert report.results["linux_task"].status == px.TaskStatus.SKIPPED
+        assert report.results["macos_task"].status == px.TaskStatus.SKIPPED
+    elif sys.platform == "linux":
+        assert report.results["win_task"].status == px.TaskStatus.SKIPPED
+        assert report.results["linux_task"].status == px.TaskStatus.SUCCESS
+        assert report.results["macos_task"].status == px.TaskStatus.SKIPPED
+    elif sys.platform == "darwin":
+        assert report.results["win_task"].status == px.TaskStatus.SKIPPED
+        assert report.results["linux_task"].status == px.TaskStatus.SKIPPED
+        assert report.results["macos_task"].status == px.TaskStatus.SUCCESS
+
+
+def test_app_installed_conditions():
+    """测试应用安装条件."""
+    # 测试 python 应该总是安装的
+    if sys.platform == "win32":
+        python_cmd = ["python", "--version"]
+    else:
+        python_cmd = ["python3", "--version"]
+
+    graph = px.Graph.from_specs(
+        [
+            px.TaskSpec(
+                "python_check",
+                cmd=python_cmd,
+                conditions=(BuiltinConditions.HAS_INSTALLED("python"),),
+            ),
+        ]
+    )
+
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+    assert "python_check" in report.results
+    # python 应该总是安装的
+    assert report.results["python_check"].status == px.TaskStatus.SUCCESS
+
+
+def test_combined_conditions():
+    """测试组合条件."""
+    # AND 条件
+    and_condition = BuiltinConditions.AND(
+        lambda: True,
+        lambda: True,
+    )
+
+    # OR 条件
+    or_condition = BuiltinConditions.OR(
+        lambda: True,
+        lambda: False,
+    )
+
+    # NOT 条件
+    not_condition = BuiltinConditions.NOT(lambda: False)
+
+    graph = px.Graph.from_specs(
+        [
+            px.TaskSpec(
+                "and_test",
+                cmd=[*ECHO_CMD, "AND"],
+                conditions=(and_condition,),
+            ),
+            px.TaskSpec(
+                "or_test",
+                cmd=[*ECHO_CMD, "OR"],
+                conditions=(or_condition,),
+            ),
+            px.TaskSpec(
+                "not_test",
+                cmd=[*ECHO_CMD, "NOT"],
+                conditions=(not_condition,),
+            ),
+        ]
+    )
+
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+    assert report.results["and_test"].status == px.TaskStatus.SUCCESS
+    assert report.results["or_test"].status == px.TaskStatus.SUCCESS
+    assert report.results["not_test"].status == px.TaskStatus.SUCCESS
+
+
+def test_taskspec_with_cwd():
+    """测试工作目录设置."""
+    if sys.platform == "win32":
+        ls_cmd = ["cmd", "/c", "dir"]
+    else:
+        ls_cmd = ["ls", "-la"]
+
+    graph = px.Graph.from_specs(
+        [
+            px.TaskSpec(
+                "list_current",
+                cmd=ls_cmd,
+                cwd=Path.cwd(),
+            ),
+        ]
+    )
+
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+    assert "list_current" in report.results
+    assert report.results["list_current"].status == px.TaskStatus.SUCCESS
+
+
+@pytest.mark.slow
+def test_taskspec_with_timeout():
+    """测试超时设置."""
+    graph = px.Graph.from_specs(
+        [
+            # 短时间任务应该成功
+            px.TaskSpec(
+                "short_task",
+                cmd=["python", "-c", "import time; time.sleep(0.1)"],
+                timeout=1.0,
+            ),
+        ]
+    )
+
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+    assert "short_task" in report.results
+    assert report.results["short_task"].status == px.TaskStatus.SUCCESS
+
+
+def test_taskspec_dependency_with_conditions():
+    """测试依赖和条件的组合."""
+    graph = px.Graph.from_specs(
+        [
+            px.TaskSpec(
+                "first",
+                cmd=[*ECHO_CMD, "first"],
+                conditions=(lambda: True,),
+            ),
+            px.TaskSpec(
+                "second",
+                cmd=[*ECHO_CMD, "second"],
+                depends_on=("first",),
+                conditions=(lambda: True,),
+            ),
+            px.TaskSpec(
+                "third",
+                cmd=[*ECHO_CMD, "third"],
+                depends_on=("second",),
+            ),
+        ]
+    )
+
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+    assert report.results["first"].status == px.TaskStatus.SUCCESS
+    assert report.results["second"].status == px.TaskStatus.SUCCESS
+    assert report.results["third"].status == px.TaskStatus.SUCCESS
+
+
+def test_taskspec_mixed_fn_and_cmd():
+    """测试混合使用 fn 和 cmd."""
+
+    def my_function():
+        return "result from function"
+
+    graph = px.Graph.from_specs(
+        [
+            px.TaskSpec("fn_task", fn=my_function),
+            px.TaskSpec("cmd_task", cmd=[*ECHO_CMD, "from command"]),
+        ]
+    )
+
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+    assert report.results["fn_task"].status == px.TaskStatus.SUCCESS
+    assert report.results["fn_task"].value == "result from function"
+    assert report.results["cmd_task"].status == px.TaskStatus.SUCCESS
+
+
+def test_taskspec_cmd_overrides_fn():
+    """测试 cmd 参数优先于 fn 参数."""
+
+    def my_function():
+        return "should not run"
+
+    graph = px.Graph.from_specs(
+        [
+            px.TaskSpec(
+                "cmd_priority",
+                fn=my_function,
+                cmd=[*ECHO_CMD, "cmd takes priority"],
+            ),
+        ]
+    )
+
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+    assert report.results["cmd_priority"].status == px.TaskStatus.SUCCESS
+    # cmd 应该被执行，而不是 fn
+    assert report.results["cmd_priority"].value is None
+
+
+def test_taskspec_callable_cmd():
+    """测试 cmd 参数使用可调用对象."""
+
+    def my_callable():
+        return "callable result"
+
+    graph = px.Graph.from_specs(
+        [
+            px.TaskSpec("callable_cmd", cmd=my_callable),
+        ]
+    )
+
+    report = px.run(graph, strategy="sequential")
+    assert report.success
+    assert report.results["callable_cmd"].status == px.TaskStatus.SUCCESS
+    assert report.results["callable_cmd"].value == "callable result"
+
+
+# ---------------------------------------------------------------------- #
+# verbose 模式测试
+# ---------------------------------------------------------------------- #
+class TestTaskSpecVerbose:
+    """测试 TaskSpec 的 verbose 字段."""
+
+    def test_verbose_default_is_false(self) -> None:
+        """verbose 默认应为 False."""
+        spec: px.TaskSpec[Any] = px.TaskSpec[Any]("a", cmd=[*ECHO_CMD, "hi"])
+        assert spec.verbose is False
+
+    def test_verbose_true_prints_command(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """verbose=True 时应打印执行的命令."""
+        graph = px.Graph.from_specs([px.TaskSpec("echo", cmd=[*ECHO_CMD, "verbose-output"], verbose=True)])
+        _ = px.run(graph, strategy="sequential")
+        captured = capsys.readouterr()
+        assert "执行命令" in captured.out
+        assert "返回码" in captured.out
+
+    def test_verbose_false_silent(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """verbose=False 时不应打印命令信息."""
+        graph = px.Graph.from_specs([px.TaskSpec[Any]("echo", cmd=[*ECHO_CMD, "silent"], verbose=False)])
+        _ = px.run(graph, strategy="sequential")
+        captured = capsys.readouterr()
+        assert "执行命令" not in captured.out
+        assert "返回码" not in captured.out
+
+    def test_verbose_true_shell_cmd(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """verbose=True 时 shell 命令也应打印执行信息."""
+        if sys.platform == "win32":
+            shell_cmd = 'cmd /c "echo shell-verbose"'
+        else:
+            shell_cmd = "echo 'shell-verbose'"
+
+        graph = px.Graph.from_specs([px.TaskSpec("shell", cmd=shell_cmd, verbose=True)])
+        _ = px.run(graph, strategy="sequential")
+        captured = capsys.readouterr()
+        assert "执行 Shell" in captured.out
+
+    def test_verbose_prints_cwd(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """verbose=True 且设置了 cwd 时应打印工作目录."""
+        import tempfile
+
+        with tempfile.TemporaryDirectory() as tmpdir:
+            graph = px.Graph.from_specs([px.TaskSpec[Any]("ls", cmd=ECHO_CMD, cwd=Path(tmpdir), verbose=True)])
+            _ = px.run(graph, strategy="sequential")
+            captured = capsys.readouterr()
+            assert "工作目录" in captured.out
+
+    def test_verbose_failure_includes_returncode(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """verbose=True 时失败也应打印返回码."""
+        from pyflowx.errors import TaskFailedError
+
+        graph = px.Graph.from_specs(
+            [
+                px.TaskSpec(
+                    "fail",
+                    cmd=["python", "-c", "import sys; sys.exit(1)"],
+                    verbose=True,
+                )
+            ]
+        )
+        with pytest.raises(TaskFailedError):
+            _ = px.run(graph, strategy="sequential")
+        captured = capsys.readouterr()
+        assert "返回码" in captured.out
+
+
+# ---------------------------------------------------------------------- #
+# _wrap_cmd 错误路径测试
+# ---------------------------------------------------------------------- #
+class TestTaskSpecCmdErrors:
+    """测试 _wrap_cmd 的错误处理路径."""
+
+    def test_cmd_list_file_not_found(self) -> None:
+        """命令不存在时应抛出 RuntimeError."""
+        from pyflowx.errors import TaskFailedError
+
+        graph = px.Graph.from_specs(
+            [px.TaskSpec("missing", cmd=["this-command-does-not-exist-xyz"], skip_if_missing=False)],
+        )
+        with pytest.raises(TaskFailedError) as exc_info:
+            _ = px.run(graph, strategy="sequential")
+        # 错误信息应包含命令未找到
+        assert "命令未找到" in str(exc_info.value.cause) or "not found" in str(exc_info.value.cause).lower()
+
+    def test_cmd_list_failure_includes_stderr(self) -> None:
+        """命令失败时错误信息应包含 stderr."""
+        from pyflowx.errors import TaskFailedError
+
+        graph = px.Graph.from_specs(
+            [
+                px.TaskSpec(
+                    "fail",
+                    cmd=[
+                        "python",
+                        "-c",
+                        "import sys; sys.stderr.write('error-msg'); sys.exit(1)",
+                    ],
+                )
+            ]
+        )
+        with pytest.raises(TaskFailedError) as exc_info:
+            _ = px.run(graph, strategy="sequential")
+        # 非 verbose 模式下, stderr 应包含在错误信息中
+        assert "error-msg" in str(exc_info.value.cause)
+
+    def test_cmd_string_file_not_found(self) -> None:
+        """shell 命令不存在时应抛出 RuntimeError."""
+        from pyflowx.errors import TaskFailedError
+
+        graph = px.Graph.from_specs([px.TaskSpec("missing", cmd="this-command-does-not-exist-xyz-123")])
+        with pytest.raises(TaskFailedError):
+            _ = px.run(graph, strategy="sequential")
+
+    def test_cmd_string_failure(self) -> None:
+        """shell 命令失败时应抛出 RuntimeError."""
+        from pyflowx.errors import TaskFailedError
+
+        graph = px.Graph.from_specs([px.TaskSpec("fail", cmd='python -c "import sys; sys.exit(1)"')])
+        with pytest.raises(TaskFailedError) as exc_info:
+            _ = px.run(graph, strategy="sequential")
+        assert "Shell 命令执行失败" in str(exc_info.value.cause)
+
+    @pytest.mark.slow
+    def test_cmd_timeout_raises(self) -> None:
+        """命令超时应抛出 RuntimeError."""
+        from pyflowx.errors import TaskFailedError
+
+        graph = px.Graph.from_specs(
+            [
+                px.TaskSpec(
+                    "slow",
+                    cmd=["python", "-c", "import time; time.sleep(5)"],
+                    timeout=0.1,
+                )
+            ]
+        )
+        with pytest.raises(TaskFailedError) as exc_info:
+            _ = px.run(graph, strategy="sequential")
+        assert "超时" in str(exc_info.value.cause)
+
+    @pytest.mark.slow
+    def test_cmd_string_timeout_raises(self) -> None:
+        """shell 命令超时应抛出 RuntimeError."""
+        from pyflowx.errors import TaskFailedError
+
+        graph = px.Graph.from_specs([px.TaskSpec("slow", cmd='python -c "import time; time.sleep(5)"', timeout=0.1)])
+        with pytest.raises(TaskFailedError) as exc_info:
+            _ = px.run(graph, strategy="sequential")
+        assert "超时" in str(exc_info.value.cause)
+
+    def test_no_fn_no_cmd_raises(self) -> None:
+        """没有 fn 和 cmd 时应抛出 ValueError."""
+        with pytest.raises(ValueError, match="必须提供 fn 或 cmd"):
+            _ = px.TaskSpec("empty")

tox.ini

@@ -0,0 +1,21 @@
+[tox]
+isolated_build = true
+envlist = py38, py39, py310, py311, py312, py313
+min_version = 4.0
+requires = tox-uv
+skipsdist = true
+
+[testenv]
+uv_sync = true
+deps =
+    .[dev]
+commands =
+    pytest -m "not slow" {posargs}
+passenv =
+    CI
+    GITHUB_*
+    UV_*
+    PYTHON*
+setenv =
+    PYTHONPATH = {toxinidir}/src
+    PYTHONDONTWRITEBYTECODE = 1

typings/graphlib/__init__.pyi

@@ -0,0 +1,8 @@
+"""
+This type stub file was generated by pyright.
+"""
+
+# pyrefly: ignore [missing-import]
+from .graphlib import CycleError, TopologicalSorter
+
+__all__ = ["CycleError", "TopologicalSorter"]

typings/graphlib/graphlib.pyi

@@ -0,0 +1,113 @@
+"""
+This type stub file was generated by pyright.
+"""
+
+from typing import Any, Generator
+
+__all__ = ["CycleError", "TopologicalSorter"]
+_NODE_OUT = ...
+_NODE_DONE = ...
+
+class _NodeInfo:
+    __slots__: list[str]
+
+    def __init__(self, node) -> None: ...
+
+class CycleError(ValueError):
+    """Subclass of ValueError raised by TopologicalSorterif cycles exist in the graph
+
+    If multiple cycles exist, only one undefined choice among them will be reported
+    and included in the exception. The detected cycle can be accessed via the second
+    element in the *args* attribute of the exception instance and consists in a list
+    of nodes, such that each node is, in the graph, an immediate predecessor of the
+    next node in the list. In the reported list, the first and the last node will be
+    the same, to make it clear that it is cyclic.
+    """
+
+    ...
+
+class TopologicalSorter:
+    """Provides functionality to topologically sort a graph of hashable nodes"""
+
+    def __init__(self, graph=...) -> None: ...
+    def add(self, node, *predecessors) -> None:
+        """Add a new node and its predecessors to the graph.
+
+        Both the *node* and all elements in *predecessors* must be hashable.
+
+        If called multiple times with the same node argument, the set of dependencies
+        will be the union of all dependencies passed in.
+
+        It is possible to add a node with no dependencies (*predecessors* is not provided)
+        as well as provide a dependency twice. If a node that has not been provided before
+        is included among *predecessors* it will be automatically added to the graph with
+        no predecessors of its own.
+
+        Raises ValueError if called after "prepare".
+        """
+
+        ...
+
+    def prepare(self) -> None:
+        """Mark the graph as finished and check for cycles in the graph.
+
+        If any cycle is detected, "CycleError" will be raised, but "get_ready" can
+        still be used to obtain as many nodes as possible until cycles block more
+        progress. After a call to this function, the graph cannot be modified and
+        therefore no more nodes can be added using "add".
+        """
+
+        ...
+
+    def get_ready(self) -> tuple[Any, ...]:
+        """Return a tuple of all the nodes that are ready.
+
+        Initially it returns all nodes with no predecessors; once those are marked
+        as processed by calling "done", further calls will return all new nodes that
+        have all their predecessors already processed. Once no more progress can be made,
+        empty tuples are returned.
+
+        Raises ValueError if called without calling "prepare" previously.
+        """
+
+        ...
+
+    def is_active(self) -> bool:
+        """Return True if more progress can be made and ``False`` otherwise.
+
+        Progress can be made if cycles do not block the resolution and either there
+        are still nodes ready that haven't yet been returned by "get_ready" or the
+        number of nodes marked "done" is less than the number that have been returned
+        by "get_ready".
+
+        Raises ValueError if called without calling "prepare" previously.
+        """
+
+        ...
+
+    def __bool__(self) -> bool: ...
+    def done(self, *nodes) -> None:
+        """Marks a set of nodes returned by "get_ready" as processed.
+
+        This method unblocks any successor of each node in *nodes* for being returned
+        in the future by a a call to "get_ready"
+
+        Raises :exec:`ValueError` if any node in *nodes* has already been marked as
+        processed by a previous call to this method, if a node was not added to the
+        graph by using "add" or if called without calling "prepare" previously or if
+        node has not yet been returned by "get_ready".
+        """
+
+        ...
+
+    def static_order(self) -> Generator[Any]:
+        """Returns an iterable of nodes in a topological order.
+
+        The particular order that is returned may depend on the specific
+        order in which the items were inserted in the graph.
+
+        Using this method does not require to call "prepare" or "done". If any
+        cycle is detected, :exc:`CycleError` will be raised.
+        """
+
+        ...

uv.lock

@@ -1,5 +1,5 @@
 version = 1
-revision = 1
+revision = 3
 requires-python = ">=3.8"
 resolution-markers = [
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+
 [[package]]
 name = "pytest"
 version = "8.3.5"
@@ -3051,7 +2750,6 @@ name = "typing-extensions"
 version = "4.15.0"
 source = { registry = "https://mirrors.aliyun.com/pypi/simple/" }
 resolution-markers = [
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     "python_full_version > '3.9' and python_full_version < '3.10'",
     "python_full_version == '3.9'",