wrangler

Wrangler

Wrangler is a Claude Code plugin that provides project governance, systematic workflows, and development tooling for AI-assisted software development. It ensures alignment between developers and AI agents through constitutional principles, tracked specifications, proven skill patterns, and automated quality enforcement.

What Wrangler Does

• Skills Library -- 40 proven workflow patterns covering TDD, debugging, code review, governance, and more
• MCP Server -- 18 tools for issue tracking, session orchestration, and workspace management
• Workflow Engine -- Automated spec-to-PR orchestration with phase-based execution and TDD enforcement
• Git Hooks -- Pre-commit and pre-push testing and quality gates
• Project Governance -- Constitution, roadmap, specifications, and issue tracking

Quick Start

Install Wrangler as a Claude Code plugin, then verify the installation:

/wrangler:help

Initialize the .wrangler/ workspace in your project:

/wrangler:init-workspace

Explore available commands and skills:

/wrangler:sitrep
/wrangler:issues

Skills Library

Skills are proven, reusable workflow patterns that Claude Code discovers and activates automatically when relevant to a task. When a skill exists for your current work, it is mandatory -- not optional.

40 skills organized across these areas:

Category	Skills	Examples
Testing	3	TDD enforcement, test execution, anti-pattern detection
Debugging	3	Systematic debugging, root cause tracing, verification
Collaboration	7	Brainstorming, code review, implementation, parallel agents
Git Workflows	6	Worktrees, branch management, hooks setup
Issue Management	3	Issue creation, specifications, idea capture
Governance	8	Constitution, roadmap, metrics, alignment checks
Frontend	4	Design, E2E testing, visual regression, accessibility
Code Analysis	5	Code location, pattern finding, research
System	3	Wrangler usage, self-update, status reporting
Meta	4	Skill authoring, testing, sharing, file organization

See docs/skill-invocation-patterns.md for task-to-skill mapping.

MCP Server

The built-in MCP server provides markdown-based tracking for issues, specifications, and workflow sessions. All data is stored as markdown files with YAML frontmatter in the .wrangler/ directory and version-controlled with git.

Issue Management (11 tools)

issues_create, issues_list, issues_search, issues_get, issues_update, issues_delete, issues_labels, issues_metadata, issues_projects, issues_mark_complete, issues_all_complete

Session Orchestration (6 tools)

session_start, session_phase, session_checkpoint, session_complete, session_get, session_status

Workspace Management (1 tool)

init_workspace

Issues and specifications are stored as {counter}-{slug}.md files (e.g., 000001-add-auth.md) with structured frontmatter for status, priority, labels, assignee, and project metadata.

See docs/mcp-usage.md for the complete tools reference.

Workflow Engine

The workflow engine (workflows/engine/) orchestrates complex spec-to-implementation workflows using the Claude Agent SDK. It provides deterministic, phase-based execution with built-in quality gates.

• Spec-implementation workflow -- Takes a specification and drives it through plan, execute, verify, and publish phases
• Code-review workflow -- Automated review with structured feedback
• Phase-based execution -- Each phase has defined entry/exit criteria
• Session tracking -- Checkpoints enable pause, resume, and recovery
• TDD enforcement -- Tests must pass before phase transitions

The engine is actively developed with 532 tests. See workflows/engine/ for details.

Slash Commands

14 commands that trigger specific workflows:

Command	Purpose
/wrangler:implement	Implement from specs, plans, or issues
/wrangler:run-tests	Run tests and fix failures
/wrangler:commit-push-pr	Commit, push, and create PR
/wrangler:write-plan	Create an implementation plan
/wrangler:generate-plan-for-spec	Break a specification into issues
/wrangler:issues	Show issue and specification status
/wrangler:idea	Capture a new idea
/wrangler:audit-session	Audit session workflow adherence
/wrangler:init-workspace	Initialize .wrangler/ workspace
/wrangler:sitrep	Situational report on project state
/wrangler:help	Documentation and help
/wrangler:setup-git-hooks	Configure git hooks
/wrangler:update-git-hooks	Update hook configuration
/wrangler:update-yourself	Update wrangler plugin

See docs/slash-commands.md for detailed usage.

Project Governance