Category
Best practices
Field-tested habits for working with coding agents: context, review, permissions and testing, backed by the official docs.
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AGENTS.md for Codex: discovery, overrides and size limit
How Codex finds and merges AGENTS.md files: global, project and nested AGENTS.override.md, fallback filenames, the 32 KiB cap, and how to verify what loaded.
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Claude Code vs Codex CLI: setup differences that matter
Claude Code vs Codex CLI compared from official docs only: install, AGENTS.md vs CLAUDE.md, permissions and sandbox, extensions, CI use, and setup changes.
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CLAUDE.md best practices: write a lean file Claude follows
CLAUDE.md best practices checked against the official Claude Code docs: where it lives, what to include, how long it should be, and what to move elsewhere.