Agent designer — weclaudecode

generated files

# agent.yaml: settings for agent.py, made with the weclaudecode agent designer.# ${NAME} values are filled in from the environment when agent.py starts. Never paste secrets here.options:  # Model family: the SDK picks the current model.  model: "sonnet"  system_prompt: "You track developments in our field. Cite every source you use."  # Tools: allowed ones run without asking; disallowed ones are removed from the model's context.  allowed_tools: ["WebSearch", "WebFetch", "Read", "Agent"]  # Subagents the main agent can hand work to through the Agent tool.  agents:    "summariser":      description: "Condenses one long source into five bullet points."      prompt: "Summarise the source you are given in five bullet points. Keep every number and date exact."      tools: ["Read"]      model: "haiku"  # Limits, working folder, settings files and skills.  max_turns: 12  max_budget_usd: 1# The prompt agent.py sends.prompt: "What changed in our field this week?"

# pip install "claude-agent-sdk==0.2.163" "pyyaml==6.0.3"# Settings live in agent.yaml next to this file. In-process tools and hooks live here, because they are code.import os, re, sysfrom pathlib import Pathimport anyioimport yamlfrom claude_agent_sdk import ClaudeAgentOptions, query, AgentDefinitionfrom claude_agent_sdk import AssistantMessage, ResultMessage, TextBlock, ToolUseBlockENV_REF = re.compile(r"\$\{([A-Z_][A-Z0-9_]*)\}")def expand(value):    # Fills in ${NAME} from the environment, and stops before the agent starts if one is missing.    def sub(m):        name = m.group(1)        if name not in os.environ:            sys.exit(f"agent.yaml needs {name}: set it in the environment")        return os.environ[name]    return ENV_REF.sub(sub, value)def load_config(path):    cfg = yaml.safe_load(Path(path).read_text())    # Only MCP env, headers, url and stdio args may reference the environment; other text is used as written.    for server in cfg["options"].get("mcp_servers", {}).values():        if "url" in server:            server["url"] = expand(server["url"])        if "args" in server:            server["args"] = [expand(a) for a in server["args"]]        for field in ("env", "headers"):            for key, value in server.get(field, {}).items():                server[field][key] = expand(value)    return cfgcfg = load_config(Path(__file__).with_name("agent.yaml"))opts = cfg["options"]opts["agents"] = {name: AgentDefinition(**a) for name, a in opts["agents"].items()}options = ClaudeAgentOptions(**opts)def show(message):    if isinstance(message, AssistantMessage):        for block in message.content:            if isinstance(block, TextBlock):                print(block.text)            elif isinstance(block, ToolUseBlock):                print("->", block.name, block.input)    elif isinstance(message, ResultMessage):        cost = message.total_cost_usd or 0        print(f"\n[{message.subtype}: {message.num_turns} turns, ${cost:.4f}]")async def main():    async for message in query(prompt=cfg["prompt"], options=options):        show(message)anyio.run(main)

ANTHROPIC_API_KEY