docs: refresh Codex plugin discovery metadata

[yyiilluu]

Summary

• Refreshes Codex plugin manifest copy to match the current claude-smart positioning across Claude Code, Codex, and OpenCode.
• Uses the public terminology from DEVELOPER.md: Preferences, Project-specific skills, and Shared skills.
• Expands plugin discovery keywords around Claude Code plugin, Codex plugin, OpenCode plugin, agent memory, self-improving agents, and skills.

Test Plan / Validation

• git diff --check
• python3 -m json.tool plugin/.codex-plugin/plugin.json >/tmp/claude-smart-codex-plugin-json.ok

Marketing rationale

Developers scanning Codex plugin/package metadata are high-intent users. Aligning this manifest with the README/package metadata improves discoverability for searches around Codex memory, agent memory, Claude Code skills, and self-improving agent tooling without adding new product claims or broad docs churn.

Summary by CodeRabbit

• Documentation
  • Updated the plugin description to clarify support for Claude Code, Codex, and OpenCode learning workflows.
  • Expanded discoverability keywords for supported platforms and self-improving agents.
  • Clarified interfaces for local learning, Preferences, project-specific skills, Shared skills, and Reflexio-backed injection.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 1e68ec74-c119-4869-9c7c-9f7697489f6f

📥 Commits

Reviewing files that changed from the base of the PR and between 2fe23d0 and ad11438.

📒 Files selected for processing (1)

• plugin/.codex-plugin/plugin.json

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📝 Walkthrough

Walkthrough

The plugin metadata now describes Claude Code, Codex, and OpenCode learning workflows. It adds related discovery keywords and updates interface descriptions for Preferences, project-specific skills, Shared skills, and Reflexio-backed session injection.

Changes

Plugin metadata

Layer / File(s)	Summary
Platform and learning metadata plugin/.codex-plugin/plugin.json	The plugin description, keywords, and interface descriptions now cover supported platforms, local learning, Preferences, project-specific skills, Shared skills, and session injection. The playbook keyword was removed.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Possibly related PRs

• ReflexioAI/claude-smart#145: Updates the same plugin metadata fields.
• ReflexioAI/claude-smart#91: Adds OpenCode support to plugin metadata.
• ReflexioAI/claude-smart#63: Updates related plugin descriptions and keywords.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately and concisely describes the refresh of Codex plugin discovery metadata.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch marketing/codex-metadata-discovery-20260803

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