MCP Script Rules
When working with files in scripts/:
DO Use CLI arguments for all parameters (argparse) Include USAGE docstring at top of file Use call_mcp_tool("server__tool", params) pattern Handle errors gracefully with informative messages Print results to stdout for Claude to process DON'T Hardcode parameters in the script Edit scripts to change parameters (use CLI args instead) Import from servers/ directly (use runtime.mcp_client) Tool Naming
Tool IDs use double underscore: serverName__toolName
Examples:
morph__warpgrep_codebase_search ast-grep__ast_grep perplexity__perplexity_ask Testing
Test with: uv run python -m runtime.harness scripts/