Claude Code Custom Plugins & Skills
Custom plugins and skills for Claude Code.
Available
| Name | Type | Description | Install Command |
|---|
| deckling | Plugin | Generate PPTX presentations using Anthropic Platform Skills API | /plugin install deckling@ccc |
| mvp-launch | Plugin | MVP launch readiness checker with /launch-check command | /plugin install mvp-launch@ccc |
| product-management | Plugin | AI-native PM: competitor research, gap analysis, WINNING prioritization | /plugin install product-management@ccc |
| excalidraw | Skill | Generate architecture diagrams as .excalidraw files with optional PNG/SVG export | /plugin install ccc-skills@ccc |
| streak | Skill + Commands | Universal challenge tracker with /streak, /streak-new, etc. | /plugin install ccc-skills@ccc |
Installation
# Add this repo as a marketplace
/plugin marketplace add ooiyeefei/ccc
# Install the deckling plugin (has /deckling command)
/plugin install deckling@ccc
# Install the skills collection (includes excalidraw and streak)
/plugin install ccc-skills@ccc
Plugin: Deckling
Generate and refine PowerPoint presentations using Anthropic's Platform Skills API.
/deckling "Quarterly Review - 3 slides"
/deckling "Change title to 'Q4 Results'" --refine quarterly.pptx
See plugins/deckling/README.md for full documentation.
Plugin: MVP Launch
Analyze web app codebases against a battle-tested 10-point MVP launch checklist. Based on "Realistic MVP Launch Checklist (from building 30+ apps)".
/launch-check
The 10-Point Checklist:
- Stripe Setup (webhooks, trials, failed payments)
- Mobile-First Design (real device testing)
- Smooth Onboarding (minimal steps, fast first win)
- AI & Automation Stability (retries, error handling)
- Critical Emails (welcome, trial-ending, failed payment)
- Error Logging (catch bugs before users)
- User Feedback Loop (simple form or tool)
- Auth & Roles (secure pages, basic roles)
- Custom Domain with SSL (no dev URLs)
- Real Database & Backups (automated backups)
Philosophy: "Don't overbuild. Just make it stable, usable, and something people can trust."
See plugins/mvp-launch/README.md for full documentation.
Skill: Excalidraw Generator
Generate architecture diagrams from any codebase as .excalidraw files, with optional PNG and SVG export.
After installing ccc-skills, just ask Claude Code:
"Generate an architecture diagram for this project"
"Create an excalidraw diagram of the system"
"Visualize this codebase as an excalidraw file"
"Export this diagram to PNG"
Features:
- Analyzes any codebase (Node.js, Python, Java, Go, etc.)
- No prerequisites - works without existing diagrams or Terraform
- Proper 90-degree elbow arrows (not curved)
- Color-coded components by type (database, API, storage, etc.)
- Dynamic IDs and labels based on discovered components
- PNG/SVG export via Playwright and
@excalidraw/utils (no manual upload needed)
See skills/excalidraw/README.md for quick start guide.
See skills/excalidraw/SKILL.md for full documentation.
Streak - Challenge Tracker
Universal challenge tracker with flexible cadence, intelligent insights, and cross-challenge learning detection.
Slash Commands (Recommended)
After installing ccc-skills, use these commands for reliable, deterministic triggering:
/streak # Check in to active challenge
/streak-new # Create a new challenge (guided)
/streak-list # List all challenges
/streak-switch NAME # Switch active challenge
/streak-stats # View progress and achievements
/streak-insights # Cross-challenge insights
Natural Language (Alternative)
You can also ask Claude Code naturally - it will invoke the skill when relevant:
"Check in to my challenge"
"Start a new streak"
"Show my stats"
Features
- Universal: Works for any challenge type (learning, habits, building, fitness, creative, custom)
- Flexible Cadence: Daily, weekly, or custom N-day intervals per challenge
- AI-Powered Insights: Auto-detects compound learning and semantic connections
- Achievements: Streak badges and milestone rewards
- Calendar Export: Optional .ics file for calendar reminders
- Zero Config: Works locally with no external dependencies
Example Challenges
- 30 Days of Coding
- Read 12 Books This Year
- Morning Meditation Habit
- Daily Sketching Practice
ooiyeefei