OS Systems Agent Plugins

Company-wide development tools and standards for Claude Code, Codex, and future agent harnesses.

This repository now keeps plugin behavior in shared source files and generates harness-specific artifacts for each supported runtime.

Layout

• sources/plugins/: canonical plugin metadata
• sources/skills/: canonical skill instructions
• plugins/*/.claude-plugin/: generated Claude manifests
• plugins/*/.codex-plugin/: generated Codex manifests
• .claude-plugin/marketplace.json: generated Claude marketplace
• .agents/plugins/marketplace.json: generated Codex marketplace

Generate Artifacts

make generate-plugins

Validate Artifacts

make validate-plugins

Claude Code

Add the marketplace:

/plugin marketplace add OSSystems/ai-plugins

Install individual plugins directly:

/plugin install ossystems-commit@ossystems
/plugin install ossystems-refactor-agent-instructions@ossystems

These Claude Code commands are still valid. Anthropic's current plugin documentation and plugin announcement still describe the /plugin marketplace add and /plugin install flow.

Codex

Add the marketplace from the command line:

codex plugin marketplace add OSSystems/ai-plugins

The current local Codex CLI also accepts a local checkout as the marketplace source:

codex plugin marketplace add /absolute/path/to/ai-plugins

The generated Codex marketplace file lives at:

.agents/plugins/marketplace.json

After adding the marketplace, install plugins from inside the Codex CLI interactive /plugin flow. The current Codex CLI on this machine exposes codex plugin marketplace add, but it does not expose a standalone non-interactive codex plugin install subcommand.

Available Codex plugins:

• ossystems-commit
• ossystems-refactor-agent-instructions

Plugins

ossystems-commit

Creates conventional commits for staged changes.

ossystems-refactor-agent-instructions

Refactors agent instruction files such as AGENTS.md and legacy CLAUDE.md using progressive disclosure.

License

MIT