01
Run the Codex doctor
Resolve user settings and project precedence, then expose parent instructions hidden by a nested project-root marker in one share-safe report.
Debug missing AGENTS.md →Open source · zero runtime dependencies
Diagnose the user instructions, project chain, and local skills Codex will consider before a session. Audit AGENTS.md, Claude, Copilot, and nested imports without uploading your code.
Install the native Codex skill
gh skill install kotobuki09/instructree instructree@v0.22.0 --agent codex --scope user
$ instructree doctor
Codex pre-session setup audit
user config · root marker: .git · max bytes: 32768
path-redacted · deterministic · no uploads
One map, explicit client boundaries
Different coding agents discover different files with different scopes. Instructree reports those boundaries instead of pretending there is one universal precedence model.
01
Resolve user settings and project precedence, then expose parent instructions hidden by a nested project-root marker in one share-safe report.
Debug missing AGENTS.md →02
Compare six source-grounded engineering companions across both current and legacy Codex user roots, with commands only for what is missing.
Run the read-only starter audit →03
Rank the largest enabled catalog contributors, expose duplicates, and keep a focused stack before descriptions are shortened.
Diagnose Codex skill overload →04
Verify repository-local candidates and supported configuration without changing their scope, then compare a fresh native session separately.
Troubleshoot Desktop local skills →05
Run as a zero-install GitHub Action or publish stable SARIF diagnostics to GitHub code scanning.
Supported surfaces
Evidence over claims
Instructree uses Node.js built-ins, runs on Node 20, 22, and 24 across Windows, Ubuntu, and macOS, and has a pinned compatibility audit against three public instruction and skill catalogs.
Inspect before you edit
Try Instructree without an API key, account, or repository upload.