Verify Codex 0.47.0 upgrade completion - no changes needed

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Issue Analysis

This PR addresses issue #1888, which requested upgrading OpenAI Codex CLI from version 0.46.0 to 0.47.0. After thorough investigation, I've confirmed that the upgrade has already been completed via PR #1891 and is live in the main branch.

Investigation Summary

I performed a comprehensive analysis of the repository to verify the upgrade status:

Version Verification

• pkg/constants/constants.go: Already contains DefaultCodexVersion = "0.47.0"
• Workflow lock files: All references use @openai/codex@0.47.0
  • .github/workflows/duplicate-code-detector.lock.yml
  • .github/workflows/smoke-codex.lock.yml
• No legacy references: Codebase-wide search confirmed no remaining 0.46.0 references

Testing Validation

• ✅ All Go unit tests pass
• ✅ Workflow compilation succeeds with no errors or warnings
• ✅ Binary builds successfully
• ✅ Both duplicate-code-detector and smoke-codex workflows compile correctly

Root Cause

Issue #1888 was created by an automated CLI Version Checker workflow (run #18604473910) that attempted to perform the Codex upgrade. However, this was a duplicate effort:

1. PR Update OpenAI Codex CLI to version 0.47.0 #1891 had already successfully upgraded Codex to 0.47.0 and was merged to main on October 17, 2025
2. The automated workflow subsequently ran and tried to perform the same upgrade
3. The automated workflow's push failed (likely because the work was already complete)
4. This resulted in issue [ca] Update OpenAI Codex CLI to version 0.47.0 #1888 being created with a patch artifact

Recommendation

No code changes are needed. The requested upgrade is complete and functioning correctly. This PR serves to document the investigation and can be closed without merging. Issue #1888 should be closed as duplicate/already resolved.

Related

• Closes [ca] Update OpenAI Codex CLI to version 0.47.0 #1888
• Related to PR Update OpenAI Codex CLI to version 0.47.0 #1891 (original upgrade PR)

Original prompt

Upgrade codex. See @githubnext/gh-aw/issues/1888

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