Plexium

Develop and contribute to the Plexium codebase — package structure, build commands, test patterns, architecture layers

Operate within a Plexium-powered repository — read wiki before work, update wiki after changes, follow ownership rules, use retrieval

Use when the user wants to install or verify the Plexium CLI from inside Codex.

Use when the user wants to initialize Plexium, set up the current repository for Codex, verify readiness, or connect Plexium's MCP server in Codex.

Use when the user wants to install Plexium, set up the current repo for Claude Code, verify readiness, or query the Plexium wiki from Claude Code.

Use when the user wants to search or retrieve information from the Plexium wiki in the current repository.

This skill should be used when the user asks to "configure Codex CLI", "edit config.toml", "set up Codex settings", "change the Codex model", "configure approval policy", "set sandbox mode", "add an MCP server to Codex", "create a Codex profile", "configure model providers", "set up OTel for Codex", or mentions Codex CLI configuration, config.toml, or settings. Provides comprehensive configuration reference for OpenAI Codex CLI.

This skill should be used when the user asks to "create a Codex hook", "configure Codex CLI hooks", "add a PreToolUse hook for Codex", "block commands in Codex", "create a stop hook", "set up SessionStart hooks", "write Codex hooks.json", or mentions Codex CLI hook events (SessionStart, PreToolUse, PostToolUse, UserPromptSubmit, Stop). Covers the Codex CLI hooks extensibility framework, configuration, event types, input/output wire format, and common patterns.

This skill should be used when the user asks to "research a topic", "find papers on", "summarize research", or "investigate a subject". Provides structured research workflow with web search and summarization.

Greet the user with a friendly message.

This skill should be used when the user asks to "create a Codex plugin", "build a plugin for Codex CLI", "package a Codex skill", "set up a Codex marketplace", "publish a Codex plugin", "configure plugin.json manifest", "add MCP to a Codex plugin", "install a local plugin in Codex", or mentions Codex plugin structure, marketplace metadata, or plugin distribution. Covers the full Codex CLI plugin lifecycle from scaffolding through packaging and distribution.

Manage Git submodules for including external repositories within a main repository. Use when working with external libraries, shared modules, or managing dependencies as separate Git repositories.

Multi-repository coordination and synchronization using Git and GitHub CLI.

Comprehensive GitHub release management using standard Git and GitHub CLI (gh) commands for versioning, testing, and deployment.

GitHub Actions workflow automation, CI/CD pipeline management, and monitoring using the GitHub CLI (gh).

Automated coordination and formatting using standard Git hooks and Claude Code's native tool hooks (PreToolUse/PostToolUse).

This skill should be used when the user asks to "configure git hooks", "set up lefthook", "add a pre-commit hook", "create a lefthook config", "install git hooks", or mentions lefthook, .lefthook.yml, git hooks management, or hook enforcement in the context of Plexium or any project using Lefthook.