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* feat: s01-s14 docs quality overhaul — tool pipeline, single-agent, knowledge & resilience Rewrite code.py and README (zh/en/ja) for s01-s14, each chapter building incrementally on the previous. Key fixes across chapters: - s01-s04: agent loop, tool dispatch, permission pipeline, hooks - s05-s08: todo write, subagent, skill loading, context compact - s09-s11: memory system, system prompt assembly, error recovery - s12-s14: task graph, background tasks, cron scheduler All chapters CC source-verified. Code inherits fixes forward (PROMPT_SECTIONS, json.dumps cache, real-state context, can_start dep protection, etc.). * feat: s15-s19 docs quality overhaul — multi-agent platform: teams, protocols, autonomy, worktree, MCP tools Rewrite code.py and README (zh/en/ja) for s15-s19, the multi-agent platform chapters. Each chapter inherits all previous fixes and adds one mechanism: - s15: agent teams (TeamCreate, teammate threads, shared task list) - s16: team protocols (plan approval, shutdown handshake, consume_inbox) - s17: autonomous agents (idle polling, auto-claim, consume_lead_inbox) - s18: worktree isolation (git worktree, bind_task, cwd switching, safety) - s19: MCP tools (MCPClient, normalize_mcp_name, assemble_tool_pool, no cache) All appendix source code references verified against CC source. Config priority corrected: claude.ai < plugin < user < project < local. * fix: 5 regressions across s05-s19 — glob safety, todo validation, memory extraction, protocol types, dep crash - s05-s09: glob results now filter with is_relative_to(WORKDIR) (inherited from s02) - s06-s08: todo_write validates content/status required fields (inherited from s05) - s09: extract_memories uses pre-compression snapshot instead of compacted messages - s16: submit_plan docstring clarifies protocol-only (not code-level gate) - s17-s19: match_response restores type mismatch validation (from s16) - s17-s19: claim_task deps list handles missing dep files without crashing * fix: s12 Todo V2 logic reversal, s14/s15 cron range validation, s18/s19 worktree name validation - s12 README (zh/en/ja): fix Todo V2 direction — interactive defaults to Task, non-interactive/SDK defaults to TodoWrite. Fix env var name to CLAUDE_CODE_ENABLE_TASKS (not TODO_V2). - s14/s15: add _validate_cron_field with per-field range checks (minute 0-59, hour 0-23, dom 1-31, month 1-12, dow 0-6), step > 0, range lo <= hi. Replace old try/except validation that only caught exceptions. - s18/s19: add validate_worktree_name() to remove_worktree and keep_worktree, not just create_worktree. * fix: align s16-s19 teaching tool consistency * fix pr265 chapter diagrams * Add comprehensive s20 harness chapter * Fix chapter smoke test regressions * Clarify README tutorial track transition --------- Co-authored-by: Haoran <bill-billion@outlook.com>
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gui-yue
189
s02_tool_use/code.py
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189
s02_tool_use/code.py
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#!/usr/bin/env python3
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"""
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s02: Tool Use — 在 s01 基础上新增 4 个工具 + 分发映射。
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运行: python s02_tool_use/code.py
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需要: pip install anthropic python-dotenv + .env 中配置 ANTHROPIC_API_KEY
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本文件 = s01 的全部代码 + 以下新增:
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+ run_read / run_write / run_edit / run_glob 四个工具实现
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+ TOOL_HANDLERS 分发映射（替代 s01 中硬编码的 run_bash 调用）
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+ safe_path 路径安全校验
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循环本身（agent_loop）与 s01 完全一致。
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"""
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import os, subprocess
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from pathlib import Path
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try:
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import readline
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readline.parse_and_bind('set bind-tty-special-chars off')
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readline.parse_and_bind('set input-meta on')
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readline.parse_and_bind('set output-meta on')
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readline.parse_and_bind('set convert-meta off')
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except ImportError:
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pass
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from anthropic import Anthropic
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from dotenv import load_dotenv
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load_dotenv(override=True)
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if os.getenv("ANTHROPIC_BASE_URL"):
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os.environ.pop("ANTHROPIC_AUTH_TOKEN", None)
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WORKDIR = Path.cwd()
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client = Anthropic(base_url=os.getenv("ANTHROPIC_BASE_URL"))
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MODEL = os.environ["MODEL_ID"]
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SYSTEM = f"You are a coding agent at {WORKDIR}. Use tools to solve tasks. Act, don't explain."
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# ═══════════════════════════════════════════════════════════
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# FROM s01 (unchanged)
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# ═══════════════════════════════════════════════════════════
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def run_bash(command: str) -> str:
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dangerous = ["rm -rf /", "sudo", "shutdown", "reboot", "> /dev/"]
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if any(d in command for d in dangerous):
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return "Error: Dangerous command blocked"
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try:
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r = subprocess.run(command, shell=True, cwd=WORKDIR,
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capture_output=True, text=True, timeout=120)
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out = (r.stdout + r.stderr).strip()
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return out[:50000] if out else "(no output)"
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except subprocess.TimeoutExpired:
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return "Error: Timeout (120s)"
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except (FileNotFoundError, OSError) as e:
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return f"Error: {e}"
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# ═══════════════════════════════════════════════════════════
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# NEW in s02: 4 个新工具
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# ═══════════════════════════════════════════════════════════
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def safe_path(p: str) -> Path:
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path = (WORKDIR / p).resolve()
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if not path.is_relative_to(WORKDIR):
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raise ValueError(f"Path escapes workspace: {p}")
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return path
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def run_read(path: str, limit: int | None = None) -> str:
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try:
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lines = safe_path(path).read_text().splitlines()
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if limit and limit < len(lines):
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lines = lines[:limit] + [f"... ({len(lines) - limit} more lines)"]
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return "\n".join(lines)
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except Exception as e:
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return f"Error: {e}"
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def run_write(path: str, content: str) -> str:
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try:
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file_path = safe_path(path)
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file_path.parent.mkdir(parents=True, exist_ok=True)
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file_path.write_text(content)
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return f"Wrote {len(content)} bytes to {path}"
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except Exception as e:
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return f"Error: {e}"
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def run_edit(path: str, old_text: str, new_text: str) -> str:
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try:
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file_path = safe_path(path)
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text = file_path.read_text()
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if old_text not in text:
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return f"Error: text not found in {path}"
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file_path.write_text(text.replace(old_text, new_text, 1))
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return f"Edited {path}"
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except Exception as e:
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return f"Error: {e}"
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def run_glob(pattern: str) -> str:
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import glob as g
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try:
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results = []
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for match in g.glob(pattern, root_dir=WORKDIR):
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if (WORKDIR / match).resolve().is_relative_to(WORKDIR):
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results.append(match)
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return "\n".join(results) if results else "(no matches)"
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except Exception as e:
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return f"Error: {e}"
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# ═══════════════════════════════════════════════════════════
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# NEW in s02: 工具定义（s01 只有一个 bash，现在扩展到 5 个）
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# ═══════════════════════════════════════════════════════════
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TOOLS = [
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{"name": "bash", "description": "Run a shell command.",
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"input_schema": {"type": "object", "properties": {"command": {"type": "string"}}, "required": ["command"]}},
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{"name": "read_file", "description": "Read file contents.",
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"input_schema": {"type": "object", "properties": {"path": {"type": "string"}, "limit": {"type": "integer"}}, "required": ["path"]}},
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{"name": "write_file", "description": "Write content to a file.",
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"input_schema": {"type": "object", "properties": {"path": {"type": "string"}, "content": {"type": "string"}}, "required": ["path", "content"]}},
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{"name": "edit_file", "description": "Replace exact text in a file once.",
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"input_schema": {"type": "object", "properties": {"path": {"type": "string"}, "old_text": {"type": "string"}, "new_text": {"type": "string"}}, "required": ["path", "old_text", "new_text"]}},
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{"name": "glob", "description": "Find files matching a glob pattern.",
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"input_schema": {"type": "object", "properties": {"pattern": {"type": "string"}}, "required": ["pattern"]}},
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]
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# ═══════════════════════════════════════════════════════════
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# NEW in s02: 工具分发映射（s01 是硬编码 run_bash，现在改为查表）
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# ═══════════════════════════════════════════════════════════
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TOOL_HANDLERS = {
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"bash": run_bash, "read_file": run_read, "write_file": run_write,
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"edit_file": run_edit, "glob": run_glob,
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}
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# ═══════════════════════════════════════════════════════════
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# agent_loop — 与 s01 结构完全一致，只改了工具执行那部分
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# s01: output = run_bash(block.input["command"])
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# s02: output = TOOL_HANDLERS[block.name](**block.input)
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# ═══════════════════════════════════════════════════════════
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def agent_loop(messages: list):
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while True:
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response = client.messages.create(
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model=MODEL, system=SYSTEM, messages=messages,
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tools=TOOLS, max_tokens=8000,
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)
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messages.append({"role": "assistant", "content": response.content})
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if response.stop_reason != "tool_use":
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return
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results = []
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for block in response.content:
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if block.type == "tool_use":
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print(f"\033[33m> {block.name}\033[0m")
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handler = TOOL_HANDLERS.get(block.name)
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output = handler(**block.input) if handler else f"Unknown: {block.name}"
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print(str(output)[:200])
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results.append({"type": "tool_result", "tool_use_id": block.id, "content": output})
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messages.append({"role": "user", "content": results})
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if __name__ == "__main__":
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print("s02: Tool Use — 在 s01 基础上加了 4 个工具")
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print("输入问题，回车发送。输入 q 退出。\n")
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history = []
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while True:
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try:
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query = input("\033[36ms02 >> \033[0m")
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except (EOFError, KeyboardInterrupt):
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break
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if query.strip().lower() in ("q", "exit", ""):
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break
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history.append({"role": "user", "content": query})
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agent_loop(history)
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for block in history[-1]["content"]:
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if getattr(block, "type", None) == "text":
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print(block.text)
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print()
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