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Claude Code Custom Plugins & Skills

Custom plugins and skills for Claude Code.

Available

Name	Type	Description	Install Command
bash-safety-guard	Plugin (hook)	Fail-closed PreToolUse bash guard: blocks prod-data loss, credential exfiltration, and catastrophic rm -rf before they run — even under --dangerously-skip-permissions	/plugin install bash-safety-guard@ccc
deckling	Plugin	Generate PPTX presentations using Anthropic Platform Skills API	/plugin install deckling@ccc
daily-chief	Plugin + Pi package	User-invoked Plan today workflow with browser device login, local preview, and explicit remote apply	/plugin install daily-chief@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
rethink-surveys	Plugin	Survey design grounded in research methods (Jarrett, Dillman, Tourangeau) with design/critique/app-scaffold commands + bundled MCP server	/plugin install rethink-surveys@ccc
agentic-toolkit	Reference package	Reusable TypeScript infrastructure for multi-model councils, sub-agent hierarchies, and provenance-tracked tool loops	Copy the source — see README
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
agentic-system-design	Skill	12-stage Q&A workflow for designing agentic pipelines, councils, and sub-agent hierarchies	/plugin install ccc-skills@ccc
self-improving-systems	Skill	Decide whether your agent actually needs memory/feedback/learning — then design the smallest thing that pays for itself	/plugin install ccc-skills@ccc
htmldrop	Skill	Publish HTML as shareable links (Surge.sh) with collaborative annotation + AI converge	/plugin install ccc-skills@ccc
landing-page-gtm	Skill	High-converting SaaS landing pages with GTM-aware copy and competitive positioning	/plugin install ccc-skills@ccc
uat-testing	Skill	End-to-end UAT for web apps via Playwright: test case generation, execution, pass/fail reports	/plugin install ccc-skills@ccc
cross-app-shared-auth	Skill	Onboard apps into a platform with one shared login and a central accounts database: per-app opt-in access, deny-by-default, dual sign-up paths	/plugin install ccc-skills@ccc
google-analytics-setup	Skill	Set up GA4 on a website and wire a real conversion (form/signup/purchase) end to end — property/stream structure, tag install, event, Key Event, and DebugView verification before ad spend	/plugin install ccc-skills@ccc
meta-pixel-setup	Skill	Set up the Meta (Facebook/Instagram) Pixel and a conversion event end to end — steers past the Conversions-API push and the sensitive-category trap, with Pixel Helper verification before ad spend	/plugin install ccc-skills@ccc
pitch-craft	Skill	Timed spoken scripts: demo voiceovers, deck narration, live pitch speeches - word budgets, storytelling rules, trim points, re-sync	/plugin install ccc-skills@ccc
demo-video	Skill	Crisp hi-res product demo videos via browser-agent driving + Xvfb framebuffer capture, with a gated recording contract and MP4-verified milestone narration	/plugin install ccc-skills@ccc
motion-video	Skill	Marketing / explainer videos built as rendered Remotion scenes (motion graphics, mocked UI, animated charts, brand-matched) stitched around one real product-capture beat	/plugin install ccc-skills@ccc
pitch-deck	Skill	Single-file HTML pitch decks with narration and recordable walkthroughs that stitch around a demo film	/plugin install ccc-skills@ccc
pitch-package	Skill	End-to-end pitch orchestration (hackathon / VC / customer): slot budgeting, deck + demo + speech composition, rehearsal and fallbacks	/plugin install ccc-skills@ccc
scribe	Skill	Meeting recordings → notes with a chain of custody: pinned-language transcription across swappable STT backends (ElevenLabs/Deepgram/OpenAI/local), recording-gap detection, and confidence carried through so garbled audio never becomes a confident fact	/plugin install ccc-skills@ccc

The four pitch skills form one suite - preparing a whole pitch -> start with pitch-package (it routes to the others); a single artifact -> call it directly (pitch-craft = words against a clock, demo-video = crisp product footage, pitch-deck = the deck + walkthrough). Full decision guide: skills/README.md.

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Installation

# Add this repo as a marketplace
/plugin marketplace add ooiyeefei/ccc

# Install a plugin (e.g. deckling, which has the /deckling command)
/plugin install deckling@ccc

# Install Daily Chief, then invoke /daily-chief for its explicit Plan today workflow
/plugin install daily-chief@ccc

# Install the skills collection (excalidraw, streak, agentic-system-design,
# self-improving-systems, htmldrop, landing-page-gtm, uat-testing,
# cross-app-shared-auth, google-analytics-setup, meta-pixel-setup, scribe)
/plugin install ccc-skills@ccc

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Plugins

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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Plugin: Product Management

AI-native product management for startups. Process signals, not features.

After installing, just ask Claude Code:

"Analyze my product"
"Research competitors"
"Find feature gaps we should build"
"What should we build next?"

Key Commands

/pm analyze     # Deep product understanding
/pm landscape   # Market overview + competitors
/pm gaps        # Batch gap analysis with WINNING scores
/pm file        # Create GitHub Issues for top priorities
/pm roadmap     # Organize into Now/Next/Later

WINNING Filter

Prioritize with objective scoring: WINNING = Pain × Timing × Execution

• 40-60: FILE (high conviction)
• 25-39: WAIT (monitor)
• 0-24: SKIP (not worth it)

spec-kit Integration

This skill handles WHAT to build (product discovery). For HOW to build, use spec-kit:

/pm file → GitHub Issue → /speckit.specify → /speckit.plan → /speckit.implement

The GitHub Issue IS the handoff—no extra command needed.

See plugins/product-management/README.md for full documentation.

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Plugin: Rethink Surveys

Survey design framework grounded in proven research methods — Caroline Jarrett's Surveys That Work, Dillman's Tailored Design, and Tourangeau's cognitive model. Captures what people are actually trying to do (past behavior, not hypotheticals) without leading questions, satisficing bait, or shallow Likert noise.

/design-survey     # Interactive design session for a new survey
/critique-survey   # Jarrett-style critique of an existing survey
/turn-into-app     # Turn a finalized design into a working app scaffold

Features:

• 4-part hybrid structure: discovery / diagnostic / intent / segmentation
• Question library with behavioral anchors
• Three battle-tested templates: event organizers, startup founders, gig-economy workers
• Text, voice, and AI-interviewer modalities
• Bundles the rethink-survey MCP server for designing, critiquing, scoring, and clustering survey responses

See plugins/rethink-surveys for full documentation.

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Plugin: Agentic Toolkit (Reference Package)

Reusable TypeScript infrastructure for building agentic systems with multi-model councils, hierarchical sub-agents, and provenance-tracked tool loops. Lifted from production code and hardened with depth caps and required provenance.

This is a reference package to copy from, not an installable command plugin — the point is to save a week of plumbing per new agentic project.

The five components:

1. Gateway adapter — one provider seam for Claude / GPT / Gemini behind a unified endpoint (TokenRouter, OpenRouter, LiteLLM, Vercel AI Gateway)
2. Models registry — typed role → { model, knobs } bindings, with per-model quirks in one place
3. Sub-agent runner — depth cap, per-parent spawn cap, wall-clock timeout, typed results
4. Events — typed AgentSseEvent union for streaming agent progress
5. Provenance — required _source tagging so cached vs. live generations are never ambiguous

Pairs well with the agentic-system-design skill: design the system with the skill, build it with the toolkit.

See plugins/agentic-toolkit/README.md for full documentation.

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Skills

Skill: Scribe

Turn meeting recordings into notes where every number and name traces back to audio the model actually heard clearly.

After installing ccc-skills, just ask Claude Code:

"Summarize the recordings in ~/meetings/2026-08-04/"
"Transcribe this call and give me notes"
"This auto-generated summary looks off - check it against the audio"

Why it exists: a summariser cannot hear. Hand it a garbled span and it launders the noise into a clean fact - "some paying customer" decoded as "it's up to 8,000 glass" becomes "~8,000 users" in the summary, and nothing downstream can tell that from a real figure.

What it does differently:

• Pins the language before transcribing, so code-switched speech (Manglish, Singlish, Hinglish) doesn't decode into fluent wrong-language text
• Detects recording gaps - a recorder stopped mid-meeting drops content silently, and the notes that follow read as complete
• Flags numbers and proper nouns sitting on low-confidence audio, using a percentile bar relative to each recording rather than a fixed cutoff