agent-skills AGENTS.md

Agent Instructions

This project uses the agent-skills repository to enforce strict coding constraints and avoid common LLM pitfalls.

As an AI coding agent, you MUST follow these directives when working in this repository:

1. Architectural Changes & Refactoring

Trigger: ANY time you need to search for code structure, refactor symbols, analyze impact, find dead code, or trace dependencies. (e.g., "find all calls to fetch", "rename oldApi to newApi safely"). Skill to use: ast-code-graph Directive: You MUST NOT use basic text search (grep) or guess at references for structural modifications. You must use this skill's ast-grep CLI instructions to parse the AST semantically, generate JSON outputs, and safely perform refactoring or impact analysis.

2. Debugging & Test Failures

Trigger: AUTOMATICALLY anytime you encounter a stack trace, test failure, production bug, or unexpected behavior. Skill to use: systematic-debugging Directive: You MUST NOT guess the solution or propose random fixes. You are constrained to the "No fixes without root cause" protocol. You must trace the error boundary, heavily utilize grep_search to understand context, and prove the failure with a reproduction script before any code modification. If 3 fixes fail, you MUST escalate and stop modifying code.

3. Structural Code Refactoring

Trigger: ANY time you need to do bulk structural replacements across files — renaming function arguments at call sites, migrating deprecated API call shapes, rewriting patterns that regex/sed would botch (nested parens, multiline, string boundary issues), extracting code locations with file+line output. Also trigger for Python 2 → 3 migrations. Skill to use: structural-refactor Directive: Do NOT use sed or raw regex for structural code changes. Use comby for cross-language pattern replacement, 2to3 for Python 2 → 3 migrations, and pyupgrade to modernize Python 3 idioms. Always run a preview step (-diff or dry-run) before applying changes in-place.