Add codex plugin

[adityaoberai]

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[greptile-apps]

Greptile Summary

This PR adds a new CodexPlugin for generating OpenAI Codex CLI plugin scaffolding — including language SDK skills, deployment workflow skills, MCP server config, and a plugin manifest. It also migrates cursor-plugin/LICENSE.twig from MIT to BSD-3-Clause and updates the claude-plugin README to reference the license dynamically.

• License metadata mismatch in claude-plugin/marketplace.json.twig: this PR changes the shared cursor-plugin/LICENSE.twig to BSD-3-Clause and example.php already passes licenseName: 'BSD-3-Clause' for the Claude plugin — but claude-plugin/marketplace.json.twig still hardcodes \"license\": \"MIT\", so the generated marketplace manifest will contradict the generated LICENSE file.

Confidence Score: 4/5

Safe to merge after fixing the license metadata mismatch in the Claude plugin marketplace manifest.

One P1 finding: the LICENSE template change to BSD-3-Clause isn't reflected in claude-plugin/marketplace.json.twig, which still hardcodes MIT. All other issues were flagged in prior review threads. No security concerns.

templates/claude-plugin/marketplace.json.twig — hardcoded "MIT" license contradicts the BSD-3-Clause LICENSE file now generated by ClaudePlugin.

Important Files Changed

Filename	Overview
templates/claude-plugin/marketplace.json.twig	Not changed in this PR, but now has a P1 mismatch: hardcodes "license": "MIT" while this PR moves cursor-plugin/LICENSE.twig to BSD-3-Clause, which ClaudePlugin also uses.
src/SDK/Language/CodexPlugin.php	New plugin class extending AgentSkills; correctly reuses agent-skills templates and sets output paths under plugins/appwrite/. No functional defects in the PHP itself.
templates/cursor-plugin/LICENSE.twig	Changed from MIT to BSD-3-Clause; also used by ClaudePlugin, creating a downstream mismatch in claude-plugin/marketplace.json.twig.
templates/codex-plugin/plugin.json.twig	Plugin manifest; repository URL and license are now templated. Relative paths ../skills/ and ../.mcp.json are correct given plugin.json lives at plugins/appwrite/.codex-plugin/.
templates/codex-plugin/marketplace.json.twig	Marketplace manifest generated at .agents/plugins/marketplace.json; path "./plugins/appwrite" may resolve incorrectly if Codex CLI resolves it relative to the manifest file rather than the repo root (pre-existing concern).
templates/codex-plugin/README.md.twig	Comprehensive README; install paths correctly reference plugins/appwrite/skills/ and plugins/appwrite/config.toml throughout.
templates/codex-plugin/skills/deploy-function.md.twig	Deploy-function skill with complete CLI command reference; delete-variable correctly includes --variable-id.
templates/codex-plugin/skills/deploy-site.md.twig	Deploy-site skill; delete-variable command is missing --variable-id (flagged in prior review thread).
templates/codex-plugin/config.toml.twig	Correct TOML config snippet for Codex CLI; two MCP server entries with placeholder values.
templates/codex-plugin/.mcp.json.twig	MCP server config with stdio and http entries; looks correct.
templates/claude-plugin/README.md.twig	License reference updated from hardcoded MIT to dynamic {{spec.licenseName}}/{{spec.licenseURL}}.

Comments Outside Diff (1)

1. templates/claude-plugin/marketplace.json.twig, line 22 (link)

   Hardcoded MIT license contradicts the BSD-3-Clause LICENSE file

   This PR changes cursor-plugin/LICENSE.twig from MIT to BSD-3-Clause. ClaudePlugin uses that template for its generated LICENSE file and example.php already passes licenseName: 'BSD-3-Clause' for the Claude plugin. After this PR the generated repo will contain a BSD-3-Clause LICENSE file while this marketplace manifest still declares "MIT", making the metadata factually wrong.

_{Reviews (11): Last reviewed commit: "Reflect correct plugin directory structu..." | Re-trigger Greptile}