Retrieve the contents of instruction/guidance files (README.md, CLAUDE.md, GEMINI.md, AGENTS.md) from all directories in the repository. Returns a nested object keyed by directory path, where each value maps filenames to their content.
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Filter to a specific file kind, or "all" (default) for every match.
README, CLAUDE, GEMINI, AGENTS, COPILOT, CODEX, all