Master Chicago TDD (state-based testing). Create tests that verify observable behavior with real collaborators. Use chicago-tdd-tools 1.4.0 AAA pattern. When writing tests, verifying implementation correctness, improving test quality, or analyzing test coverage. Covers: unit tests, integration tests, mutation testing, assertion analysis.
Chilisin Electronics inductor MPN encoding patterns, value decoding, and handler guidance. Use when working with Chilisin inductors or ChilisinHandler.
Chipone Technology MPN encoding patterns, suffix decoding, and handler guidance. Use when working with Chipone LED driver components or ChiponeHandler.
Browser automation with two integrations - Chrome DevTools MCP (always available, performance tracing) and Claude-in-Chrome extension (authenticated sessions, GIF recording). Use DevTools for testing/debugging, Claude-in-Chrome for authenticated workflows.
Chrome Built-in AI APIs for client-side AI features. Use for Writer API, Rewriter API, Proofreader API, Prompt API, Translator API, Language Detector API, Summarizer API, and building AI-powered web applications with on-device processing.
Lightweight Chromium DevTools automation via the bundled browser-tools.ts CLI (Puppeteer connect). Use when you need to launch a Chromium-based browser with a remote-debugging port, navigate pages, run JS in the active tab, capture screenshots, inspect DevTools sessions, or extract readable content without a full browser automation server.
Debug and analyze web applications using Chrome DevTools MCP. Use for console log inspection, network request monitoring, performance analysis, and debugging authenticated sessions. For basic browser automation (screenshots, form filling), use browser-discovery skill instead.
Validate website parsing and browser automation feasibility by browsing and searching within a user-specified website scope using the chrome-devtools MCP server (mcp_servers.chrome-devtools); summarize results backed by observed page content (real titles/URLs), and open matching pages for review. Use when the user asks you to open a site, find specific content on it, run a site-scoped query, and keep the relevant pages open.
Chrome Extensions (Manifest V3) performance optimization guidelines (formerly chrome-extensions). This skill should be used when writing, reviewing, or refactoring Chrome extension code to ensure optimal performance patterns. Triggers on tasks involving service workers, content scripts, message passing, storage APIs, or extension development.
Build modern, cross-browser extensions using WXT - the next-generation framework that supports Chrome, Firefox, Edge, Safari, and all Chromium browsers with a single codebase.
Chrome Extensions (Manifest V3) performance and code quality guidelines. Use when writing, reviewing, or refactoring Chrome extension code including service workers, content scripts, message passing, storage APIs, TypeScript patterns, and testing.
Records browser workflows as annotated GIFs for documentation and tutorials. Use when creating visual documentation of browser interactions, recording step-by-step tutorials, or capturing workflows for support tickets. Triggers on phrases like 'record this workflow', 'create a GIF tutorial', 'document this process as GIF', 'show me how to do X as a GIF', or when user needs visual step-by-step documentation. Works with Chrome browser automation via MCP tools (tabs_context_mcp, gif_creator, computer).
Guide for using Claude Code with Chrome browser integration. Use when automating browser tasks, debugging web apps, testing UI, or extracting data from websites. Covers setup, capabilities, and common workflows.
Project-agnostic guidance for AI assistants using Chronicle. Provides search-first directives, best practices, and workflow patterns across ALL Chronicle-tracked projects. Works with or without MCP server.
Manage Chronicle project development using database-tracked milestones, next steps, and roadmap visualization. Works with MCP tools (fast, structured) or CLI commands (portable). Use when planning features, tracking progress, viewing roadmap, or linking sessions to milestones. Eliminates manual DEVELOPMENT_HISTORY.md updates.
Automate cross-system summarization workflow for Chronicle sessions. Export sessions from remote systems (like FreeBSD) and import/summarize on local machine with Gemini API. Use when you have sessions on a system without Gemini API access and need to summarize them on another machine.
Document chunking strategies for RAG systems. Use when implementing document processing pipelines to determine optimal chunking approaches based on document type and retrieval requirements.
Implement optimal chunking strategies in RAG systems and document processing pipelines. Use when building retrieval-augmented generation systems, vector databases, or processing large documents that require breaking into semantically meaningful segments for embeddings and search.
GitHub Actions CI/CD workflows for testing, building, and deploying. Use this skill when creating or modifying GitHub Actions workflows, debugging CI failures, or setting up automated pipelines.
Analyze a project and implement CI/CD pipelines tailored to its tech stack and deployment target. This skill should be used when a project is ready for automated testing and/or deployment. Generates GitHub Actions workflows, deployment scripts, and secrets documentation. Works as a standalone utility on any project.
Pre-push validation checklist (cargo fmt, clippy with zero warnings, feature flag testing, test suite), CI monitoring, merge process, and release quality gates. Use when preparing to push code, validating changes before PR, running CI checks, merging PRs, or preparing releases.
Debug GitHub Actions workflow failures, CI build issues, test failures in CI, and deployment problems. Use when workflows fail, artifacts aren't uploaded, or CI-specific errors occur.
This skill should be used when analyzing failed GitHub Actions CI/CD runs for Breenix kernel development. Use for diagnosing test failures, parsing QEMU logs, identifying kernel panics or faults, understanding timeout issues, and determining root causes of CI failures.
Analyze GitHub Actions CI failures for the current branch. Use when the user asks about CI status, test failures, build errors, GitHub Actions problems, or mentions checking CI, workflow failures, or pipeline status.
Fix GitHub Actions CI failures using GitHub CLI (gh): inspect runs/logs, identify root cause, patch workflows/code, rerun jobs, and summarize verification. Use when GitHub Actions CI is failing or needs diagnosis.