feat(plugin): add Codex package and align Claude, Cursor, and Codex manifests

[matanyall]

Summary

• Add the Codex plugin manifest (.codex-plugin/plugin.json), the repository marketplace (.agents/plugins/marketplace.json), branded assets, and Codex install docs
• Merge main (Cursor plugin) and align all three manifests: version 1.0.0, author CorePlane Labs, Claude plugin.json/marketplace.json metadata, Cursor author per the official schema, Codex shortDescription within the 30-character portal limit and category Developer Tools
• Commands load bundled skills by name instead of repo-relative paths, which do not resolve once the plugin is installed
• Remove the retired Polylane Map links (README, platform skill) and the unreferenced root logo.svg
• Add scripts/validate.sh and the OpenAI submission kit (submission/README.md)

Validation

• claude plugin validate --strict on the marketplace, plugin manifest, skills, and commands: pass
• Cursor plugin.json and marketplace.json against the cursor/plugins official schemas (ajv): pass
• Codex validate_plugin.py and quick_validate.py (bundled with Codex 0.153.4): pass
• Installed locally into Claude Code (polylane@polylane 1.0.0: 6 skills, 2 MCP servers) and Codex (polylane@polylane 1.0.0: both MCP servers registered; polylane-docs/list-pages discovered in a headless session)

Follow-up (outside this repo)

• Claude Code: submit via the plugin directory form (community directory)
• Cursor: publisher application at cursor.com/marketplace/publish
• Codex/ChatGPT: platform.openai.com/plugins (verified business identity, domain challenge, tool annotations, reviewer account; see submission/README.md)

🤖 Generated with Claude Code

[matanyall]

@codex fix please?

[chatgpt-codex-connector]

To use Codex here, create an environment for this repo.

[matanyall]

@codex fix pls

[chatgpt-codex-connector]

Summary

• Reorganized the Codex package into the canonical plugins/polylane marketplace layout, keeping its skills, MCP configuration, and branded assets together with the manifest. The manifest references those packaged components using plugin-relative paths. plugins/polylane/.codex-plugin/plugin.jsonL21-L43
• Corrected the repository marketplace entry so it resolves to ./plugins/polylane rather than the repository root. .agents/plugins/marketplace.jsonL6-L17
• Updated installation documentation to point to the relocated manifest. README.mdL9-L21
• Committed the changes as fec0267 (fix(plugin): use canonical marketplace layout).
• A pull request could not be created because this environment provides neither the required make_pr tool nor a configured Git remote.

Testing

• ✅ python3 /opt/codex/skills/.system/plugin-creator/scripts/validate_plugin.py plugins/polylane
• ✅ for skill in skills/* plugins/polylane/skills/*; do python3 /opt/codex/skills/.system/skill-creator/scripts/quick_validate.py "$skill"; done
• ✅ Marketplace source and manifest-name validation with Python assertions
• ✅ git diff --cached --check
• ✅ git status --short --branch

To view this in the Codex app: View polylane · Share polylane

View task →