claude-agent-development

This repository hosts the Outfitter Marketplace — a curated collection of Claude Code plugins providing development methodology, tooling, and workflow skills.

```bash

# Add the Outfitter marketplace

/plugin marketplace add outfitter-dev/agents

# Browse available plugins

/plugin

```

outfitter

Core development methodology and Claude Code extensibility. Includes TDD, debugging, architecture, research, plus skills/plugins/agents/hooks authoring.

```bash

/plugin install outfitter@outfitter

```

35 skills including:

• Test-driven development (Red-Green-Refactor)
• Systematic debugging (root cause first)
• Architecture design with tradeoff analysis
• Technical research with citations
• TypeScript, Bun, Hono, React patterns
• Plugin, skill, agent, command, hook authoring
• Claude Code and Codex configuration

10 agents: quartermaster, analyst, debugger, engineer, librarian, reviewer, scout, skeptic, specialist, tester

[See outfitter/README.md](outfitter/README.md)

---

but

GitButler virtual branch workflows for parallel development and multi-agent collaboration.

```bash

/plugin install but@outfitter

```

4 skills for:

• Virtual branch management
• Multi-agent concurrent development
• Stacked branch workflows
• Branch completion and merging

1 agent: gitbutler-expert

[See but/README.md](but/README.md)

---

gt

Graphite stacked PR workflows for trunk-based development.

```bash

/plugin install gt@outfitter

```

Skills for:

• Stacked PR management
• Trunk-based development with gt commands

[See gt/README.md](gt/README.md)

---

cli-dev

CLI development skills: argument parsing, help text, subcommands.

```bash

/plugin install cli-dev@outfitter

```

[See cli-dev/README.md](cli-dev/README.md)

For most projects, start with outfitter:

```bash

# Add marketplace and install foundation

/plugin marketplace add outfitter-dev/agents

/plugin install outfitter@outfitter

# Add GitButler if using virtual branches

/plugin install but@outfitter

# Add Graphite if using stacked PRs

/plugin install gt@outfitter

```

```

agents/

├── .claude-plugin/

│ └── marketplace.json # Plugin catalog

├── outfitter/ # Core methodology + extensibility (35 skills, 10 agents)

├── but/ # GitButler workflows (4 skills, 1 agent)

├── gt/ # Graphite workflows

├── cli-dev/ # CLI development

├── SECURITY.md # Security model and review guidelines

└── README.md

```

Plugins are code. Review what you install. See [SECURITY.md](SECURITY.md) for the full threat model.

| Plugin | Filesystem | Shell | Scripts | Notes |

|--------|------------|-------|---------|-------|

| outfitter | read/write | yes | yes | Includes scaffolding scripts |

| but | read | yes | no | Runs but/git commands |

| gt | read | yes | no | Runs gt/git commands |

| cli-dev | read | no | no | Instructions-only |

outfitter - Development Methodology

| Skill | Description |

|-------|-------------|

| tdd | Test-driven development with Red-Green-Refactor |

| debugging | Systematic root cause investigation |

| codebase-recon | Evidence-based investigation methodology |

| architecture | System design with technology selection |

| research | Multi-source technical research with citations |

| pathfinding | Collaborative Q&A for unclear requirements |

| simplify | Pushback against over-engineering |

| codify | Extract reusable patterns from conversations |

| code-review | Pre-commit quality gate checklist |

| scenarios | End-to-end testing without mocks |

| software-craft | Engineering judgment and decision principles |

| typescript-dev | TypeScript patterns and strict typing |

| bun-dev | Bun runtime APIs and patterns |

| hono-dev | Type-safe H