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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

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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

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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.

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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:

1. Stripe Setup (webhooks, trials, failed payments)
2. Mobile-First Design (real device testing)
3. Smooth Onboarding (minimal steps, fast first win)
4. AI & Automation Stability (retries, error handling)
5. Critical Emails (welcome, trial-ending, failed payment)
6. Error Logging (catch bugs before users)
7. User Feedback Loop (simple form or tool)
8. Auth & Roles (secure pages, basic roles)
9. Custom Domain with SSL (no dev URLs)
10. 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.

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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.

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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