A marketplace of Claude Code plugins for enhanced development workflows.
Add this marketplace to Claude Code:
/plugin marketplace add reggiechan74/cc-pluginsMulti-agent verification system implementing organizational intelligence for production-grade code reliability. Achieves 92%+ accuracy through team-of-rivals architecture with specialized critic agents.
Install:
/plugin install code-coherence@cc-pluginsFeatures:
- Multi-layer verification with independent critics implementing the Swiss cheese model
- Specialized critic agents: planner, code-critic, security-critic, domain-critic
- Domain specializations: financial, healthcare, legal
- Automatic verification gates via PreToolUse and PostToolUse hooks
- Per-project configuration with
.claude/code-coherence.local.md
Skills:
/coherence-check- Full multi-agent verification workflow/plan-review- Review execution plans with acceptance criteria/audit-trail- Bidirectional decision history with search/acceptance-criteria- Define and enforce success criteria/swiss-cheese-validation- Multi-layer error checking with independence verification
Agents:
- Planner - Creates execution DAGs with pre-declared acceptance criteria
- Code Critic - Validates syntax, logic, performance, style, complexity
- Security Critic - OWASP Top 10, data exposure, timing attacks, supply chain
- Domain Critic - Business logic validation (financial, healthcare, legal specializations)
Create professional course curricula for 1-2 day workshops using backward design methodology and Bloom's taxonomy.
Install:
/plugin install course-curriculum-creator@cc-pluginsFeatures:
- Backward Design Framework: Start with learning outcomes, design assessments, then plan activities
- Bloom's Taxonomy Integration: Create measurable learning objectives at appropriate cognitive levels
- Rapid Course Creation: Generate complete curricula autonomously or step-by-step
- Modular Architecture: Create courses optimized for 1-2 day weekend workshops
- Professional Outputs: Course descriptions, outlines, lesson plans, rubrics, student materials
- Template System: Save and reuse course structures for variants and iterations
Commands:
/create-course- Initialize new course project with directory structure/generate-description- Create student-facing course description/generate-outline- Generate module structure with timing/generate-objectives- Create Bloom's-aligned learning objectives/generate-lesson-plans- Generate detailed module-level lesson plans/generate-rubrics- Create 1-5 scale analytical assessment rubrics/generate-artifacts- Generate student handouts, instructor guides, etc./save-as-template- Save course structure as reusable template/create-from-template- Create new course from existing template/review-curriculum- Validate curriculum quality and alignment
Agents:
- Curriculum Architect - Autonomous agent that designs complete curricula from high-level requirements
- Quality Reviewer - Validates alignment between outcomes, assessments, and activities
D3.js visualization skill for quickly creating any kind of data visualization.
Install:
/plugin install d3-visualizations@cc-pluginsFeatures:
- All D3 chart types: bar, line, area, scatter, pie, histogram, treemap, sunburst, force-directed, Sankey, chord, choropleth, and more
- 173 gallery templates covering every example from the Observable D3 Gallery
- Three output formats: standalone HTML, HTML + separate JS, React components
- Two workflows: direct implementation (fast) and creative mode (design philosophy + implementation)
- Discovery interview: 3-round, 12-question process to understand requirements before building
- Clean professional style: NYT/FT-inspired defaults with muted colors, clean axes, good typography
- Single-screen layout: 100vh no-scroll default for easy PDF/screenshot export
- Sample data generation: visualizations work immediately out of the box
Gmail, Google Calendar, and Google Contacts MCP servers for Claude Code.
Install:
/plugin install google-workspace-mcp@cc-pluginsFeatures:
- 22 Gmail tools: send, draft, read, search, modify, delete emails; label management; filters; attachments; threads; contact lookup
- 6 Google Calendar tools: list calendars, list/create/get/update/delete events
- OAuth 2.0 authentication with GCP credentials
- Works with Gmail, Google Calendar, and Google People APIs
Commands:
/authenticate- Run OAuth flow for Gmail and Calendar servers
Configure git auth for installing Claude Code plugins from private GitHub repos. Guides PAT creation, Codespace secret storage, and git URL rewriting when /plugin marketplace add fails with 403 or HTTPS auth errors.
Install:
/plugin install install-private-plugin@cc-pluginsFeatures:
- Step-by-step guide for creating fine-grained GitHub PATs with minimal permissions
- Codespace secret storage and container rebuild workflow
- Git URL rewriting to inject PAT credentials transparently
- Access verification before attempting plugin install
- Works with any git-based private repo (GitHub, GitLab, Bitbucket)
Commands:
/install-private-plugin- Show full prerequisites guide for PAT and secret setup/install-private-plugin <github-repo-url> <env-var-name>- Configure git auth and verify access
Plan and book kids' summer camps, March break programs, and PA day coverage with budget tracking, schedule optimization, and provider research for Ontario families.
Install:
/plugin install kids-camp-planner@cc-pluginsFeatures:
- Schedule Planning: Build gap-free day-by-day coverage from last day of school through fall, including March break and PA days
- Provider Research: Systematically discover and document camp providers with structured comparison files
- Budget Tracking: Calculate costs across children, providers, and days/weeks with discount optimization and tax recovery estimates
- Private School Support: Handle calendar mismatches between private schools and public board PA day/break schedules
- Email Drafting: Generate inquiry, registration, waitlist, special needs, and cancellation emails
- Pre-Saved Calendars: Ships with 12+ Ontario public school board calendars (TDSB, TCDSB, PDSB, DDSB, HDSB, YRDSB, and more) plus private schools (GIST, KCS)
Skills:
- Setup - Initialize research folder and family profile
- Camp Planning - Ontario camp evaluation knowledge and quality indicators
- Budget Optimization - Cost calculation, discount optimization, tax recovery
- Plan Summer - Day-by-day summer coverage scheduling
- Plan March Break - March break planning (handles 2-week private school breaks)
- Plan PA Days - PA day lookup and single-day coverage
- Research Camps - Provider discovery and documentation
- Draft Email - Email composition for camp communications
- Add School Calendar - Import school calendar from URL/PDF into reference data
- Generate Annual Schedule - Consolidate all periods into one annual view with markdown + xlsx output
- Commute Matrix - Automated commute calculation using Geoapify API
Agents:
- Camp Researcher - Autonomous web research creating provider files with daily and weekly rates
- Schedule Optimizer - Builds and refines day-level schedules across constraints
Query Mississauga building permit data by address with filtering and summary stats.
Install:
/plugin install mississauga-permits@cc-pluginsFeatures:
- 20 municipal datasets: building permits, parcels, land use, transit, infrastructure, and more
- Text search with partial matching and address normalization
- Spatial queries by latitude/longitude
- Auto-discovered field metadata from ArcGIS FeatureServer
- Zero external dependencies (Python stdlib only)
- JSON output with summary statistics
Commands:
/fetch-permits <address>- Building permit lookup with rich filtering (type, scope, ward, date range, construction value)/fetch-mississauga [options]- General-purpose query for any of 20 City of Mississauga datasets
AI image generation and presentation deck creation via Gemini API. 25 style presets, batch deck generation, and report-to-slides decomposition.
Install:
/plugin install nano-banana@cc-pluginsFeatures:
- 25 style presets across 6 categories: Technical, Business, Creative, UI/UX, Photography, Specialized
- Image editing with up to 14 reference images per call
- Batch deck generation from JSON specifications with resume support
- Report-to-slides decomposition — convert markdown/PDF reports into presentation decks
- Version-safe output — never overwrites existing files
Skills:
nano-banana- Image generation and editing via Gemini API/deck-prompt- Decompose reports into deck specification JSON
Convert markdown research reports into interactive React presentation websites for GitHub Pages.
Install:
/plugin install report-to-web@cc-pluginsFeatures:
- Reusable generator for any structured markdown research report
- Tailwind CSS v4 + shadcn/ui with 8 built-in dark color themes
- Interactive elements: calculators, scenario sliders, comparison tables, timelines
- Knowledge vault with searchable full-text report content
- Dark professional theme with refined typography
- GitHub Pages ready with included deploy workflow
Commands:
/report-to-web:generate <path>- Parse a markdown report and generate a complete React site
Agents:
- Site Builder - Autonomous agent that parses reports and generates React projects
Generate portfolio-ready repository snapshots for resume and job documentation.
Install:
/plugin install resume-snapshot@cc-pluginsFeatures:
- Automated git metadata collection: commits, contributors, timeline, tags
- File statistics and lines-of-code analysis by language
- Infrastructure and tooling detection (CI/CD, Docker, linting, tests)
- Complexity hotspot detection: file sizes, function counts, nesting depth
- Evolution analysis: churn hotspots, commit cadence, refactoring maturity
- Import/dependency mapping with ASCII architecture diagrams
- Code quality evidence: test ratios, type safety, error handling patterns
- Professional portfolio-entry synthesis with technical architecture, skills, and business impact
- Honest, evidence-based output — only claims what the code supports
Commands:
/resume-snapshot- Generate a portfolio-quality markdown summary of the current repository/resume-snapshot --output FILE- Write snapshot to a custom file path
Professional-grade rubric creation skill with validity, reliability, and fairness controls for Claude Code.
Install:
/plugin install rubric-creator@cc-pluginsFeatures:
- Three creation modes: Interactive, Template, and Example-Based
- 7 pre-built domain templates (regulatory-compliance, document-quality, code-review, vendor-evaluation, risk-assessment, performance-review, research-quality)
- Anchor examples for every score level
- Critical barrier definitions with thresholds
- Inter-rater reliability protocol
- Bias review checklist and maintenance lifecycle schedule
- Optional companion materials: pilot testing worksheet and scorer calibration pack
Commands:
/rubric-creator --interactive- Guided 6-phase questionnaire with validity/alignment foundation/rubric-creator --template [domain]- Generate from pre-built domain templates/rubric-creator --from-example [file]- Analyze existing rubric and create variant/rubric-creator --with-pilot- Generate pilot testing worksheet/rubric-creator --with-calibration- Generate scorer calibration pack
Generate and apply themed spinner verbs for Claude Code status messages. Includes pre-built themes (Star Trek, Game of Thrones, Mandalorian) with optional humor and cynic modifiers.
Install:
/plugin install spinnerverbs@cc-pluginsFeatures:
- Pre-built themes: Star Trek, Game of Thrones, Mandalorian
- Custom theme generation from any description
- Style modifiers:
--parody(Claude Code / AI / LLM references) and--cynic(pessimistic / world-weary twist) - Flexible scoping: Apply to current project, user-level, or local directory
Commands:
/spinnerverbs:create [theme]- Generate new themed spinner verbs from a description/spinnerverbs:apply [template-name]- Apply a pre-built theme template (startrek, gameofthrones, mandalorian)
Natural-language specification format with hybrid notation for declarative rules (BEHAVIOR), step-by-step workflows (PROCEDURE), decision tables (@route), and centralized configuration (@config). SESF v4 introduces hybrid blocks that blend declarative and procedural styles within a single spec.
Install:
/plugin install structured-english@cc-pluginsFeatures:
- Hybrid notation: Blend BEHAVIOR rules and PROCEDURE steps within a single specification
- Decision tables:
@routecompact tabular notation for multi-condition branching - Centralized config:
@configblocks for thresholds, feature flags, and environment settings - Variable threading:
$variablesigil for explicit data flow across blocks - 3-tier scaling: Micro (20-40 lines), Standard (100-300 lines), Complex (300-600 lines)
- Structural validator: Python script that checks section completeness, block structure, and tier compliance
- Templates and examples: Fill-in-the-blank templates and 7 complete working examples covering declarative, procedural, and hybrid patterns
Commands:
/write-spec <domain>- Guided SESF specification creation with block type selection, authoring, and validation/assess-doc <path>- Evaluate whether a document would benefit from SESF conversion/assess-inferred-intent <path>- Review a spec for ambiguity, contradiction, and inferred intent, then resolve interactively/update-spec <path>- Upgrade an existing SESF spec from any previous version to v4
After adding the marketplace, you can browse and install plugins using:
/pluginOr install directly by name as shown above.
Found an issue or have a suggestion? Please open an issue in the repository.
Each plugin has its own license. See individual plugin directories for details.