Regenerate Codex Context

Regenerate the Codex context file (CODEX.md or ~/.codex/instructions.md) for OpenAI Codex integration. Performs an intelligent merge — preserving team-written content while updating AIWG context.

Core Principle

Team content is preserved. AIWG content is updated. Full injection used (Codex does not support @-link directives).

Important: No @-Link Support

Codex context files do not support @filename style includes. AIWG content is embedded directly using injection markers:

<!-- BEGIN AIWG -->
[AIWG content]
<!-- END AIWG -->

This is different from other providers that use the hook file approach.

Parameters

Context File Locations

Default: project-level CODEX.md. Use --user-level for user-wide context.

Execution Steps

Step 1: Create Backup

Unless --no-backup specified, create CODEX.md.backup-{YYYYMMDD-HHMMSS}.

Step 2: Analyze Existing Content

Read CODEX.md if it exists and categorize:

• Team content (PRESERVE): Project rules, conventions, business logic, above or below AIWG block
• AIWG content (UPDATE): Content between <!-- BEGIN AIWG --> and <!-- END AIWG -->

Step 3: Generate AIWG Content

Generate AIWG content from installed framework manifests. Same content as other providers' hook files, but embedded inline.

Also write AIWG-codex.md as a side file for reference and for potential future migration if Codex adds @-link support.

Step 4: Inject Content

If AIWG markers found: Replace content between markers with freshly generated content.

If no markers found: Append AIWG block to end of file (before <!-- TEAM DIRECTIVES --> marker if present).

[team content preserved above]

<!-- BEGIN AIWG -->
<!-- Managed by aiwg — regenerate with: aiwg-regenerate-codex -->
[AIWG content]
<!-- END AIWG -->

<!-- TEAM DIRECTIVES: Add project-specific guidance below -->

Step 5: Report

Codex Context Regenerated
==========================

Backup: CODEX.md.backup-20260322-190000

AIWG content: 312 lines (injected between markers)
Side file:    AIWG-codex.md (312 lines, written for reference)

Team content preserved: 22 lines

Note: Codex does not support @-link directives.
      Content embedded directly with <!-- BEGIN/END AIWG --> markers.
      To update: aiwg-regenerate-codex

Examples

# Default (project-level CODEX.md)
/aiwg-regenerate-codex

# Update user-level instructions
/aiwg-regenerate-codex --user-level

# Preview without writing
/aiwg-regenerate-codex --dry-run

# Skip backup
/aiwg-regenerate-codex --no-backup

Related Commands

References

• #439 — AIWG.md hook file architecture
• #444 — Multi-provider @-link support research (Codex confirmed no @-link support)
• #446 — Regenerate command suite update