Add Codex CLI support and multi-agent plugin infrastructure#41
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Make every plugin dual-installable from both Claude Code and Codex CLI by publishing parallel manifests and a mirrored marketplace catalog. Skill, agent, and command files stay shared between tools — only the manifests and the catalog are duplicated. - Add AGENTS.md as the cross-agent source of truth; reduce CLAUDE.md to a thin Claude-specific shim that imports it - Add .codex-plugin/plugin.json to all 12 plugins, mirroring their .claude-plugin/plugin.json - Add .agents/plugins/marketplace.json mirroring .claude-plugin/marketplace.json - Add scripts/sync-marketplace.sh and scripts/validate-plugins.sh to keep the two manifests and catalogs in lockstep - Update README with Codex install instructions and updated layout https://claude.ai/code/session_014yM8JMUkfjAnheCJ3t4yft
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Collapse the two-file shim setup into a single source of truth. AGENTS.md now covers everything (universal + per-tool install/dev/iteration workflows) and CLAUDE.md is a symlink so Claude Code reads the same content. Adds a Maintenance Scripts section explaining what validate-plugins.sh and sync-marketplace.sh do and when to run each. https://claude.ai/code/session_014yM8JMUkfjAnheCJ3t4yft
…Codex sessions When a session fills its context window, users typically open a fresh session and ask the new agent to "pick up where we left off". Previously this required a hand-typed prompt with a session UUID. This skill automates the lookup: - Searches both ~/.claude/projects/**/*.jsonl and ~/.codex/sessions/**/rollout-*.jsonl - With no argument, picks the most recently modified session (current cwd for Claude Code, globally for Codex) and uses whichever is newer - With a UUID argument, finds the matching transcript across both tools - Prints metadata (tool, branch, cwd, last activity) plus the last N messages Adds session-resume-plugin to both marketplaces and maps it to the "Productivity" category in scripts/sync-marketplace.sh. https://claude.ai/code/session_014yM8JMUkfjAnheCJ3t4yft
The Claude Code Review GitHub Action chokes on the symlink with "ENOENT: no such file or directory, symlink" while preparing its workspace. Replacing the symlink with a regular file containing Claude Code's native @AGENTS.md import achieves the same outcome (single source of truth, no content duplication) without any filesystem-level redirects, so CI is happy and Codex/Cursor still read AGENTS.md directly. https://claude.ai/code/session_014yM8JMUkfjAnheCJ3t4yft
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Summary
Restructure the plugins marketplace to support both Claude Code and Codex CLI as first-class agents, with shared plugin content and parallel manifests. Introduce cross-agent guidance documentation and validation/sync scripts to keep the two agent ecosystems in lockstep.
Key Changes
New
AGENTS.md— Shared guidance for all coding agents (Claude Code, Codex, Cursor, etc.), covering repository purpose, plugin layout, component compatibility matrix, and maintenance workflows. This becomes the single source of truth.Refactored
CLAUDE.md— Now referencesAGENTS.mdand adds only Claude Code-specific details (local plugin development, Claude Code commands, hook format notes).Dual plugin manifests — Each plugin now ships both:
.claude-plugin/plugin.json(Claude Code).codex-plugin/plugin.json(Codex CLI)Both manifests mirror each other in name, version, and description.
Dual marketplace catalogs:
.claude-plugin/marketplace.json(Claude Code source of truth).agents/plugins/marketplace.json(Codex CLI mirror)New maintenance scripts:
scripts/sync-marketplace.sh— Mirrors Claude marketplace to Codex location with a rewritten description to reflect multi-agent intent.scripts/validate-plugins.sh— Verifies every plugin has both manifests with matching metadata and that marketplace lists agree.Updated
README.md— Retitled to "Multi-Agent Plugins Marketplace," added Codex CLI quick-start section, documented dual marketplace locations, and clarified the plugin structure with both manifest types.Added
.codex-plugin/plugin.jsonto all 12 plugins — Each mirrors its Claude counterpart with identical name, version, and description.Notable Details
AGENTS.mdclarifies which parts are shared (skills, subagents) vs. tool-specific (hooks, MCP config format)..mcp.jsonfor Claude,codex.config.toml.snippetfor Codex) but reference the same underlying servers.https://claude.ai/code/session_014yM8JMUkfjAnheCJ3t4yft