Production-ready agentic workflow building blocks: 83 plugins, 180 agents, 165 skills, 100 commands — built for Claude Code and consumed natively by OpenAI Codex CLI, OpenCode, the Antigravity CLI, GitHub Copilot, and Pi from a single Markdown source.

Pick your harness:

/plugin marketplace add liangquanli930/agents
/plugin install python-development          # or any of 83 plugins

→ Full Claude Code setup, troubleshooting, and plugin catalog

Codex installs natively from the committed registries (which point at the source plugins/):

npx codex-marketplace add liangquanli930/agents        # Codex; then install individual plugins

Antigravity, OpenCode, and Pi install via clone + generate (the transformed trees are gitignored):

gh repo clone liangquanli930/agents ~/agents && cd ~/agents
make generate HARNESS=antigravity && make install-antigravity  # Antigravity (agy)
make install-opencode                                          # OpenCode (runs generate + symlinks)
make generate HARNESS=pi && make install-pi                    # Pi

Both Agent Skills installers read plugins/*/skills/ straight from GitHub, into whichever agent you use. No clone, no marketplace, no generate step. Skills only: no agents, commands, or hooks.

gh skill install liangquanli930/agents                                 # browse, then pick a skill or --all
gh skill install liangquanli930/agents python-testing-patterns --agent claude-code
npx skills add liangquanli930/agents --skill python-testing-patterns   # add -a claude-code, -g for user scope

Setup details and per-harness gotchas: docs/harnesses.md.

Browse the catalog: docs/plugins.md · docs/agents.md · docs/agent-skills.md

Each plugin is isolated and composable: agents, commands, and skills are auto-discovered from directory structure. Installing a plugin loads only its components into context — not the whole marketplace.

plugins/python-development/
├── .claude-plugin/plugin.json
├── agents/             # 3 Python agents (python-pro, django-pro, fastapi-pro)
├── commands/           # 1 scaffolding command
└── skills/             # 16 specialized skills (async, testing, packaging, …)

Tiered model strategy:

→ Model configuration details

This marketplace ships to five agentic harnesses from one Markdown source. Each adapter emits harness-native artifacts (not lowest-common-denominator translations):

make generate-all                        # all five
make validate                            # structural checks
make garden                              # drift / dead-link / cap detection

Codex installs from source via committed registries; Antigravity, OpenCode, and Pi install via clone + make. Individual skills install into any agent with gh skill install liangquanli930/agents or npx skills add liangquanli930/agents, no clone needed.

→ Full capability matrix and per-harness deep-dives

plugin-eval is a three-layer evaluation framework for measuring and certifying plugin/skill quality:

• Static — deterministic structural analysis (<2s, free)
• LLM Judge — semantic evaluation across 4 dimensions (~30s, Haiku + Sonnet)
• Monte Carlo — statistical reliability via 50-100 simulated runs (~2-5 min)

uv run plugin-eval score path/to/skill --depth quick
uv run plugin-eval certify path/to/skill

→ PluginEval framework documentation

Detail lives in docs/. Read in this order:

• docs/plugins.md — full catalog of all 83 plugins
• docs/agents.md — all 180 agents by category
• docs/agent-skills.md — 165 skills with progressive disclosure
• docs/usage.md — commands, workflows, examples
• docs/architecture.md — design principles
• docs/harnesses.md — cross-harness capability matrix
• docs/authoring.md — portable-content style guide
• docs/plugin-eval.md — quality evaluation framework
• docs/round-trip-results.md — real-CLI verification recipes

Harness setup, capability deltas, and gotchas live in docs/harnesses.md.

Contributing: CONTRIBUTING.md · Authoring: docs/authoring.md

Pensyve is included as an external git-subdir entry for Claude Code. Pensyve also maintains direct upstream integrations for Codex CLI, OpenCode, and Copilot (not yet the Antigravity CLI or Pi).

HOL Guard is included as an external git-subdir entry for Claude Code from the reviewed distributions/liangquanli930-agents payload in hashgraph-online/hol-guard-plugin. The payload exposes local hol-guard and plugin-scanner skills. Guard Cloud is neither required nor promoted on the default path. This marketplace entry is a Claude Code discovery surface only; it does not add HOL Guard to this repository's generated Codex, OpenCode, Antigravity, Copilot, or Pi outputs.

The reviewed external payload is pinned to commit 43b2dda59e9f07057c52e69fd7426188faae1488. Its local CLI pins are hol-guard==2.2.119 and plugin-scanner==2.2.119, and installation requires user approval. For a reviewed payload update, the marketplace sha and the matching marketplace/external manifest versions must be advanced together. When protection is explicitly requested, the external hol-guard runtime can modify supported harness hook/settings configuration; those changes are performed by the local Guard CLI, not by files in this marketplace repository.

MIT — see LICENSE.