Tools & Utilities
Essential command-line tools and system utilities.
persona-exec-assistant
Manage an executive's schedule, inbox, and communications.
persona-it-admin
Administer IT — monitor security and configure Workspace.
testing-codegen
Guide for testing workflows and code generation commands in Biome. Use when running snapshot tests for lint rules, managing insta snapshots, or regenerating analyzer/parser/formatter code after changes.
type-inference
Guide for working with Biome's module graph and type inference system. Use when implementing type-aware lint rules, understanding type resolution, working on the module graph infrastructure, or implementing type inference for new features.
formatter-development
Guide for implementing formatting rules using Biome's IR-based formatter infrastructure. Use when implementing formatting for new syntax nodes, handling comments in formatted output, or comparing Biome's formatting against Prettier for JavaScript, CSS, JSON, HTML, or other languages.
llamafile
This skill should be used when the user asks to "build llamafile", "rebuild llamafile", "run llamafile", "run llamafile tests", "debug llamafile", "set up llamafile", "update patches", "fix patch conflict", "update llama.cpp", "pull latest llama.cpp", "sync upstream llama.cpp", "reset submodules", "write a test for llamafile", "how does llamafile work", "llamafile architecture", or needs guidance on the llamafile build system, patch workflow, submodule integration, cosmocc toolchain, or development practices.
paddle-eager-graph
Use when navigating Paddle eager-mode (dynamic graph) source code, tracing forward/backward execution, debugging autograd issues, understanding PyLayer, or investigating complex-valued gradient computation. Covers Python API to C++ kernel call chain, backward graph topology sort, and inplace version tracking.
paddle-pull-request
自动创建或更新 GitHub Pull Request。 当需要为 Paddle 相关仓库创建 PR 时，优先使用本 skill。
code-health-histogram-cleanup
Identify and safely remove expired Chromium histograms (dead metrics/technical debt). Use this skill when a contributor asks to clean up metrics, fix code health issues related to histograms, remove obsolete code, or work on a histogram cleanup task.
java-memory-leaks
How to identify and fix Java memory leaks in Android Chrome using LeakCanary traces.
loadline-benchmark
Running and analyzing LoadLine 1 and 2 benchmarks on Android using Crossbench. Use when you need to measure page loading performance, evaluate performance-related changes in Chrome, or collect Perfetto traces with realistic Chrome workload.
trace-analysis
Skill for analyzing trace files and finding hard causal links across threads and processes (using waker_utid).
code-health-hub
Orchestrator for the "Code Health Hub" framework. Trigger only when the user refers to the Hub or asks to see "available cleanup tasks" within the Chromium technical debt reduction system.
develop-ai-functions-example
Develop examples for AI SDK functions. Use when creating, running, or modifying examples under examples/ai-functions/src to validate provider support, demonstrate features, or create test fixtures.
add-provider-package
Guide for adding new AI provider packages to the AI SDK. Use when creating a new @ai-sdk/<provider> package to integrate an AI service into the SDK.
a2ui-response-generator
A skill that can retrieve A2UI UI JSON schematics and UI templates that best show the response. This skill is essential and must be used before generating A2UI (Agent to UI) JSON responses.
agent-memory
Use this skill when the user asks to save, remember, recall, or organize memories. Triggers on: 'remember this', 'save this', 'note this', 'what did we discuss about...', 'check your notes', 'clean up memories'. Also use proactively when discovering valuable findings worth preserving.
repomix-explorer
Use this skill when the user wants to analyze or explore a codebase (remote repository or local repository) using Repomix. Triggers on: 'analyze this repo', 'explore codebase', 'what's the structure', 'find patterns in repo', 'how many files/tokens'. Runs repomix CLI to pack repositories, then analyzes the output.
website-maintainer
Use this skill when working on the Repomix documentation website in `website/` directory, including VitePress configuration, multi-language content, or translation workflows.
repomix
Pack and analyze codebases into AI-friendly single files using Repomix. Use when the user wants to explore repositories, analyze code structure, find patterns, check token counts, or prepare codebase context for AI analysis. Supports both local directories and remote GitHub repositories.
browser-extension-developer
Use this skill when developing or maintaining browser extension code in the `browser/` directory, including Chrome/Firefox/Edge compatibility, content scripts, background scripts, or i18n updates.
issue-triage
Queries and triages open GitHub issues that need attention. Helps identify issues needing milestones, labels, or investigation.
try-fix
Attempts ONE alternative fix for a bug, tests it empirically, and reports results. ALWAYS explores a DIFFERENT approach from existing PR fixes. Use when CI or an agent needs to try independent fix alternatives. Invoke with problem description, test command, target files, and optional hints.