Use when configuring project preferences in .c3/settings.yaml - diagram tools, layer guidance, guardrails, and handoff steps

Use when upgrading .c3/ documentation to current skill version - reads VERSION, applies transforms from migrations/ directory in batches

Generate comprehensive C4 architecture documentation for an existing repository/codebase using a bottom-up analysis approach.

Generate software architecture documentation using C4 model diagrams in Mermaid syntax.

Expert C4 Code-level documentation specialist. Analyzes code

Expert C4 Component-level documentation specialist. Synthesizes C4

Expert C4 Container-level documentation specialist. Synthesizes

Creates and manages C4 architecture diagrams using PlantUML. Use when the user wants to visualize software architecture, create context/container/component/sequence diagrams, document system design with the C4 model, or mentions architecture diagrams, system design, or PlantUML. Supports iterative diagram building through conversational workflow.

C4 architectural modeling for documenting software architecture. Use when creating architecture diagrams, planning new systems, communicating with stakeholders, or conducting architecture reviews.

Review C99 code for compliance with HBF's strict coding standards including compiler warnings, Linux kernel style, and licensing constraints. Use when reviewing or writing C code in this project.

ALWAYS use this skill proactively for Consumer Affairs Django repositories (located in ../ca/ directory) when ANY of these occur - (1) After writing or modifying ANY Python code files in CA repos (2) After tests pass and before telling user work is complete (3) User mentions linting, formatting, ruff, code style, or code quality (4) After using the ca-django-tests skill successfully (5) Before preparing to commit code. This skill runs 'ca exec ruff format' and 'ca exec ruff check --fix' to ensure code quality. CRITICAL - Always run this automatically after code changes and before declaring work complete.

ALWAYS use this skill proactively for Consumer Affairs Django repositories (located in ../ca/ directory) when ANY of these occur - (1) User mentions coverage, codecov, test coverage, partial coverage, branch coverage, or uncovered lines/code (2) User asks to write tests, add tests, run tests, or fix test failures (3) User asks to implement features, fix bugs, or modify code in CA repos and tests are needed (4) User provides a file path containing 'test' or 'tests' in CA repos (5) After writing new code in CA repos that needs test coverage. This skill handles Django test execution using the 'ca magictest' command and ensures 100% code coverage for CI requirements.

Decode consciousness-as-a-service emoji-based communication protocols.

Cabinet Editor web application development skill. Use when working on Cabinet Editor codebase - a 2D/3D furniture configurator built with Canvas API and Three.js. Covers architecture (Panel and Drawer classes, connections system, virtual panels), coordinate systems, panel/drawer movement logic, cabinet dimension changes (width/height/depth/base), 3D rendering with rank-based depth, ribs system, and drawer box calculations. Essential for debugging, adding features, or understanding how panels/drawers interact with cabinet sizing.

Facilitate a structured Cabinet meeting where multiple agents provide their domain-specific perspectives on a decision or situation.

Covers Dagger Engine caching internals including cache key derivation, invalidation, and the immutable DAG model. Use when debugging cache misses, unexpected invalidations, or implementing caching-related engine features.

Implement production-grade caching with cache keys/TTLs/consistency classes per query, SWR (stale-while-revalidate), explicit invalidation, HTTP cache headers, and comprehensive testing for stale reads and cache warmup. Use when adding caching to queries, implementing cache invalidation, configuring HTTP caching, or ensuring cache consistency and performance.

cache-metrics

Track cache hit rates, latency, and detect cache-related issues

Implement caching strategies for HTTP, service workers, and memoization

Optimize caching strategies for performance. Use when analyzing cache effectiveness, implementing multi-layer caching, optimizing Redis/memory caches, or troubleshooting slow response times.

Implement multi-layer caching with Redis, in-memory, and HTTP caching. Covers cache invalidation, stampede prevention, and cache-aside patterns.

Design effective caching strategies for performance and consistency.

Dramatically speed up CI pipelines with intelligent caching.

Implement efficient caching strategies using Redis, Memcached, CDN, and cache invalidation patterns. Use when optimizing application performance, reducing database load, or improving response times.

'Guide for using caching utilities in speedy_utils, including memory, disk, and hybrid caching strategies for sync and async functions.'

Enforces project caching conventions when implementing cache layers using React cache(), Next.js unstable_cache, Upstash Redis, and Cloudinary. This skill ensures consistent patterns for cache keys, tags, TTL configuration, cache invalidation, and domain-specific CacheService helpers.

Claude Agentic Creator OS - Native Claude Code implementation

Expert CAD Engineering Specialist with comprehensive knowledge of CAD

Scans Cairo/StarkNet smart contracts for 6 critical vulnerabilities including felt252 arithmetic overflow, L1-L2 messaging issues, address conversion problems, and signature replay. Use when auditing StarkNet projects.

Measure test coverage and identify untested code. Use when assessing test completeness.

Use to enforce cadence rules, timezone coverage, and operational controls

DEBUG calendar inbox showing 0 tasks when inbox has tasks. Fix Vue 3 + Pinia calendar filtering issues where sidebar filters hide calendar inbox tasks.

COMPREHENSIVE calendar system skill combining TypeScript interface architecture,

This skill should be used when fixing Vue.js calendar task scheduling issues, specifically when tasks with due dates incorrectly appear in calendar grid instead of staying in calendar inbox. The skill provides comprehensive research-backed solutions for separating task management from calendar scheduling with mandatory Playwright testing.

Calendar event formatting, conflict detection, meeting optimization, and smart scheduling. Use when creating calendar events, finding meeting times, or managing schedules.

calendar-sync

Use to improve story sizing accuracy by analyzing historical estimation data. Identifies patterns, updates size definitions, and refines PROBE proxy selections.

Hard stop. Evidence-based calibration. Realign to North Star.

Sensor and robot calibration using specialized robotics calibration tools

Use to score calls, capture highlights, and convert insights into actions.

Analyzes sales call transcripts using the POWERFUL framework to extract insights and action items. Use this skill when reviewing call recordings, coaching reps, qualifying opportunities, or extracting deal intelligence from conversations.

Use to structure concise call briefs with objectives, agendas, and role

Invoke the Cursor CLI for security-focused plan validation and code review.

Invoke the Gemini CLI for architecture and scalability review.

Use to capture, tag, and distribute call clips for coaching and enablement

Prepare for upcoming call with full context

Use to facilitate structured call review sessions with agendas, scorecards,

Deploy and interact with Algorand smart contracts using AlgoKit CLI and the generated TypeScript client.