Agents

Agentic Plugin Marketplace

> Production-ready agentic workflow building blocks: 88 plugins, 194 agents, > 158 skills, 106 commands — built for Claude Code and consumed natively by > OpenAI Codex CLI, Cursor, OpenCode, Gemini CLI, and GitHub Copilot from a single Markdown source.

[](#claude-code) [](docs/harnesses.md) [](docs/harnesses.md) [](docs/harnesses.md) [](GEMINI.md) [](docs/harnesses.md)

> [!NOTE] > One source-of-truth (plugins/), five harnesses. Each harness gets idiomatic, > harness-native artifacts — not lowest-common-denominator translations. > See [docs/harnesses.md](docs/harnesses.md) for the capability matrix.

Quick start

Pick your harness:

Claude Code

/plugin marketplace add wshobson/agents
/plugin install python-development          # or any of 88 plugins

[→ Full Claude Code setup, troubleshooting, and plugin catalog](docs/usage.md)

Codex CLI · Cursor · OpenCode · Gemini CLI · Copilot

Codex and Cursor install natively from the committed registries (which point at the source plugins/):

npx codex-marketplace add wshobson/agents        # Codex; then install individual plugins
# Cursor: add the marketplace, then `/plugin install ` (reads .cursor-plugin/ + source)

Gemini and OpenCode install via clone + generate (the transformed trees are gitignored):

gh repo clone wshobson/agents ~/agents && cd ~/agents
make generate HARNESS=gemini && gemini extensions install .   # Gemini
make install-opencode                                          # OpenCode (runs generate + symlinks)

Setup details and per-harness gotchas: [docs/harnesses.md](docs/harnesses.md). Gemini-specific setup: [GEMINI.md](GEMINI.md) (also auto-loaded by Gemini CLI).

What's inside

| | Count | What it is | |---|---:|---| | Plugins | 88 | Granular, single-purpose installable units (85 local + 3 external via git-subdir) | | Agents | 194 | Domain experts (architecture, languages, infra, security, data, ML, docs, business, SEO) | | Skills | 158 | Modular knowledge packages with progressive disclosure (load when activated) | | Commands | 106 | Slash commands: scaffolding, security scans, test gen, infrastructure setup | | Orchestrators | 16 | Multi-agent coordination workflows (full-stack, security, ML, incident response) |

Browse the catalog: [docs/plugins.md](docs/plugins.md) · [docs/agents.md](docs/agents.md) · [docs/agent-skills.md](docs/agent-skills.md)

How it works

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:

| Tier | Model | Use | |---|---|---| | 0 | Fable 5 | Longest-horizon autonomous work — large migrations, multi-hour runs (opt-in, premium cost) | | 1 | Opus | Architecture, security, code review, production-critical | | 2 | inherit | User-chosen — backend, frontend, AI/ML, specialized | | 3 | Sonnet | Docs, testing, debugging, API references | | 4 | Haiku | Fast operational tasks, SEO, deployment, content |

[→ Model configuration details](docs/agents.md#model-configuration)

Multi-harness support

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

| Harness | Generates | Notes | |---|---|---| | Claude Code | (source-of-truth) | Native marketplace.json + plugins/ | | Codex CLI | .agents/plugins/marketplace.json + plugins/*/.codex-plugin/plugin.json (committed); .codex/skills/, .codex/agents/ (gitignored) | 8 KB skill cap respected; commands → skills | | Cursor | .cursor-plugin/, .cursor/rules/ | Thin marketplace + curated rules; reuses .claude/ | | OpenCode | .opencode/agents/, .opencode/commands/, .opencode/skills/ | permission: block from tools: allowlist; OpenCode-safe skill names | | Gemini CLI | skills/, agents/, commands/ (TOML) | Native skills + subagents (April 2026 spec) | | Copilot | .copilot/agents/, .copilot/skills/, .copilot/commands/ | Markdown agent profiles + SKILL.md skills + commands-as-skills; model maps to native Claude models |

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

Codex and Cursor install from source via committed registries; Gemini and OpenCode install via clone + make.

[→ Full capability matrix and per-harness deep-dives](docs/harnesses.md)

Quality evaluation

[plugin-eval](plugins/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](docs/plugin-eval.md)

Documentation map

Detail lives in docs/. Read in this order:

• [docs/plugins.md](docs/plugins.md) — full catalog of all 88 plugins
• [docs/agents.md](docs/agents.md) — all 194 agents by category
• [docs/agent-skills.md](docs/agent-skills.md) — 158 skills with progressive disclosure
• [docs/usage.md](docs/usage.md) — commands, workflows, examples
• [docs/architecture.md](docs/architecture.md) — design principles
• [docs/harnesses.md](docs/harnesses.md) — cross-harness capability matrix
• [docs/authoring.md](docs/authoring.md) — portable-content style guide
• [docs/plugin-eval.md](docs/plugin-eval.md) — quality evaluation framework
• [docs/round-trip-results.md](docs/round-trip-results.md) — real-CLI verification recipes

Gemini-specific setup: [GEMINI.md](GEMINI.md). All other harness setup, capability deltas, and gotchas live in [docs/harnesses.md](docs/harnesses.md).

Contributing: [CONTRIBUTING.md](CONTRIBUTING.md) · Authoring: [docs/authoring.md](docs/authoring.md)

External Memory Integration

Pensyve is included as an external git-subdir entry for Claude Code. Pensyve also maintains direct upstream integrations for this marketplace's other supported harnesses.

| Harness | Pensyve integration | |---|---| | Claude Code | /plugin install pensyve from this marketplace (integrations/claude-code) | | Codex CLI | integrations/codex-plugin | | Cursor | integrations/cursor | | OpenCode | integrations/opencode-plugin | | Gemini CLI | gemini extensions install https://github.com/major7apps/pensyve | | Copilot | .copilot/ in repo root or ~/.copilot/ via make install-copilot |

License

MIT — see [LICENSE](LICENSE).

Star history

[](https://www.star-history.com/#wshobson/agents&type=date&legend=top-left)

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: wshobson
• Source: wshobson/agents
• License: MIT
• Homepage: https://sethhobson.com

Install and usage instructions live in the source repository linked above.