Claude SDLC Plugin Marketplace
A plugin marketplace for Claude Code spanning software development lifecycle automation, Gas Town bead-plan workflows, content generation (presentations, diagrams, documents), AI plugin testing, Copilot CLI development, and multi-agent team bootstrapping.
Quick Start
# Add the marketplace to Claude Code
/plugin marketplace add https://github.com/danielscholl/claude-sdlc
# Install any plugin
/plugin install sdlc
/plugin install gt-sdlc
/plugin install skilltest
/plugin install copilot
/plugin install cadre
/plugin install presentations
/plugin install excalidraw
/plugin install docx
Plugins
sdlc
Software development lifecycle automation with slash commands, specialized agents, and GitHub/GitLab webhook watchers.
Commands:
| Command | Description |
|---|
/sdlc:prime | Analyze and understand the codebase |
/sdlc:feature [description] | Create a feature specification with deep codebase analysis |
/sdlc:bug [description] | Create a bug fix specification |
/sdlc:chore [description] | Create a maintenance task specification |
/sdlc:implement [spec-file] | Implement a specification with structured task tracking |
/sdlc:tdd [description] | Implement using strict Test-Driven Development |
/sdlc:branch [spec-file] | Create a git branch from a specification |
/sdlc:commit [spec-file] | Commit changes |
/sdlc:pull_request [spec-file] | Create a pull request |
/sdlc:pr_resolve [PR-number] | Resolve PR review comments in parallel |
/sdlc:test_plan [module] | Analyze tests and create test documentation |
/sdlc:locate [spec-file] | Locate specification files |
/sdlc:install | Install dependencies and run setup scripts |
Agents:
| Agent | Purpose | Tools |
|---|
architecture-strategist | Architectural review of code changes, design decisions, component boundaries | Read, Glob, Grep, Bash |
performance-oracle | Algorithmic complexity, database queries, memory usage, caching, scalability | Read, Glob, Grep, Bash |
pr-comment-resolver | Address PR review comments, implement fixes, post replies, resolve threads | Read, Edit, Write, Glob, Grep, Bash |
All agents run on Sonnet for cost-efficient delegation.
skilltest
Four-layer test framework for validating Claude Code plugin skills remain well-maintained and purposeful.
Command: /skilltest:test-framework
Skill: test-framework — Validates plugin structure, tests trigger accuracy of skill descriptions, runs multi-turn session scenarios, and compares skill value (with vs without).
Testing Layers:
| Layer | What it Tests | Speed |
|---|
| L1 Structure | Plugin spec compliance, naming, cross-references | ~0.1s |
| L2 Triggers | Skill description accuracy (precision/recall) | ~30s/query |
| L3 Sessions | Multi-turn routing, context handling, boundaries | 2-3 min |
| L4 Value | Does the skill actually help? (with vs without) | 5+ min |
copilot
Create and maintain GitHub Copilot CLI plugins with authoritative spec references and templates.
Command: /copilot:copilot-plugin
Skill: copilot-plugin — Builds Copilot CLI plugin components: skills, agents, prompts, custom instructions, path-specific instructions, AGENTS.md routing, MCP servers, and hooks.
Includes reference specs for all Copilot CLI conventions, comparison matrices, a writing guide, and output templates.
cadre
Multi-agent team bootstrapper that analyzes your codebase and generates tailored agent teams via AI debate.
Command: /cadre:init
Skill: init — Analyzes project structure, runs an AI debate to determine optimal team composition, and generates .claude/agents/*.md files, config, and routing rules. Handles both existing projects and greenfield bootstrapping.
presentations
Branded presentation and LinkedIn carousel generation with a brand voice system and reusable slide layouts.
Skills:
| Skill | Purpose |
|---|
pptx-generator | Generate and edit PPTX slides, LinkedIn carousels, and reusable slide layouts |
brand-voice-generator | Create tone-of-voice and brand-system files consumed by pptx-generator |
excalidraw
Create .excalidraw diagram JSON files that make visual arguments — workflows, architectures, concepts.
Skill: excalidraw-diagram — Generates Excalidraw JSON with a visual-argument methodology and PNG render pipeline (requires Chromium via Playwright for rendering).
docx
Comprehensive DOCX document creation, editing, and analysis with tracked changes and comment support.
Skill: docx — Create new documents, modify content, work with tracked changes, add comments, extract text, and handle OOXML validation.
gt-sdlc
