project-context

$project-context — Codex-only lore router

Use this skill only in Codex. It provides progressive access to Magician's packaged lore without changing or emulating Claude Code's SessionStart hook.

Detect

1. Resolve this skill's directory from the path Codex supplied when loading it. In an installed plugin, the plugin root is two directories above the skill directory (skills/project-context).

2. Run the read-only detector from the workspace root:

   python3 "<skill-dir>/scripts/detect_project_context.py" \
     --root "<workspace-root>" \
     --topic "<current user task>"
   

   Pass another --topic for each materially distinct requested concern. Use --plugin-root only while developing the plugin from its authoring repository; installed packages are inferred.

3. Parse the JSON. Never copy manifest or environment-file contents into the conversation; the detector reports only normalized technology names and package-relative lore paths.

If enabled is false, state the reported disabled_by control once and continue using repository rules and normal engineering judgment. Do not bypass MAGICIAN_LORE or .magician/lore.off.

Load progressively

Treat repository instructions and observed code as authoritative. Lore is a baseline beneath them.

1. Read every path in cores, in order, from the detected plugin_root. These are concise stack cores only; do not load unrelated lore.
2. Read paths in recommended_deep_dives only when they match the current task. They are ranked from the selected stack's deep-dive filenames and capped at eight.
3. If the recommendations do not cover a necessary subtopic, inspect only the relevant technology's entries in deep_dives, then read the smallest matching set. Never bulk-read a deep-dive tree.
4. Apply version gates from manifests and source code. If detected markers conflict with the code, trust the code and mention the mismatch only when it affects the task.
5. If logging/observability work is requested and observability_candidates contains zero or more than one platform, ask which deployed log platform is authoritative before shaping platform- specific logs or queries. Do not write a preference unless the user explicitly asks.
6. Do not claim automatic session injection, status-line integration, or persistent observability selection. Those remain Claude-specific unless a future Codex hook explicitly provides them.