GoogleSkillcritique
google-gemini/gemini-cli/tools/gemini-cli-bot/.gemini/skills/critique/SKILL.md
Expertise in auditing and fixing repository scripts and GitHub Actions workflows to ensure technical robustness and security.
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GoogleSkillGoogleSkillprs
google-gemini/gemini-cli/tools/gemini-cli-bot/.gemini/skills/prs/SKILL.md
Expertise in managing the Git and GitHub Pull Request lifecycle, including staging changes, generating PR descriptions, and branch management.
addyosmaniCLAUDE.mdagent-skills
addyosmani/agent-skills/CLAUDE.md
performance-optimization **Ship:** git-workflow-and-versioning, ci-cd-and-automation, deprecation-and-migration, documentation-and-adrs, observability-and-instrumentation, shipping-and-launch ## Conventions - Every skill lives in `skills/ /SKILL.md
addyosmaniAGENTS.mdagent-skills
addyosmani/agent-skills/docs/agents.md
this file. 5. If the persona enables a new orchestration pattern, document it in `references/orchestration-patterns.md` rather than inventing the pattern in the persona file itself
addyosmaniSkillapi-and-interface-design
addyosmani/agent-skills/skills/api-and-interface-design/SKILL.md
Guides stable API and interface design. Use when designing APIs, module boundaries, or any public interface. Use when creating REST or GraphQL endpoints, defining type contracts between modules, or establishing boundaries between frontend and backend.
addyosmaniSkillcode-review-and-quality
addyosmani/agent-skills/skills/code-review-and-quality/SKILL.md
Conducts multi-axis code review. Use before merging any change. Use when reviewing code written by yourself, another agent, or a human. Use when you need to assess code quality across multiple dimensions before it enters the main branch. Use when asked to review a diff or a pull request, even when the diff is pasted inline.
addyosmaniSkillcode-simplification
addyosmani/agent-skills/skills/code-simplification/SKILL.md
Simplifies code for clarity. Use when refactoring code for clarity without changing behavior. Use when code works but is harder to read, maintain, or extend than it should be. Use when reviewing code that has accumulated unnecessary complexity.
addyosmaniSkillcontext-engineering
addyosmani/agent-skills/skills/context-engineering/SKILL.md
Optimizes agent context setup. Use when starting a new session, when agent output quality degrades, when switching between tasks, or when you need to configure rules files and context for a project.
addyosmaniSkilldebugging-and-error-recovery
addyosmani/agent-skills/skills/debugging-and-error-recovery/SKILL.md
Guides systematic root-cause debugging. Use when tests fail, builds break, something that worked yesterday broke, behavior doesn't match expectations, or you encounter any unexpected error. Use when you need to figure out what broke and why — a systematic approach to finding and fixing the root cause rather than guessing.
addyosmaniSkilldeprecation-and-migration
addyosmani/agent-skills/skills/deprecation-and-migration/SKILL.md
Manages deprecation and migration. Use when removing old systems, APIs, or features. Use when migrating users from one implementation to another. Use when migrating a database schema in production, such as renaming or dropping a column without downtime (expand/contract). Use when deciding whether to maintain or sunset existing code.
addyosmaniSkilldoubt-driven-development
addyosmani/agent-skills/skills/doubt-driven-development/SKILL.md
Subjects every non-trivial decision to a fresh-context adversarial review before it stands. Use when you want every assumption cross-examined before proceeding, when stress-testing a plan for hidden failure modes, when correctness matters more than speed, when working in unfamiliar code, when stakes are high (production auth, security-sensitive logic, a high-stakes migration, irreversible operations), or any time a confident output would be cheaper to verify now than to debug later.
addyosmaniSkillfrontend-ui-engineering
addyosmani/agent-skills/skills/frontend-ui-engineering/SKILL.md
Builds production-quality, accessible, responsive user-facing UIs. Use when building or modifying interfaces and pages, creating components, implementing layouts, meeting WCAG accessibility requirements, managing state, or when the output needs to look and feel production-quality rather than AI-generated.
addyosmaniSkillgit-workflow-and-versioning
addyosmani/agent-skills/skills/git-workflow-and-versioning/SKILL.md
Structures git workflow practices. Use when making any code change. Use when committing, branching, resolving conflicts, splitting uncommitted work in a messy working tree into clean atomic commits, opening or reviewing a pull request (PR), pushing to a remote, or when you need to organize work across multiple parallel streams. Use when cutting a release, choosing a semantic version bump, tagging, or writing a changelog.
addyosmaniSkillobservability-and-instrumentation
addyosmani/agent-skills/skills/observability-and-instrumentation/SKILL.md
Instruments code so production behavior is visible and diagnosable. Use when adding logging, metrics, tracing, or alerting. Use when shipping any feature that runs in production and you need evidence it works. Use when production issues are reported but you can't tell what happened from the available data.
addyosmaniSkillplanning-and-task-breakdown
addyosmani/agent-skills/skills/planning-and-task-breakdown/SKILL.md
Breaks work into ordered tasks. Use when you have a spec or clear requirements and need to break work into implementable tasks. Use when a task feels too large to start, when you need to estimate scope, or when parallel work is possible.
addyosmaniSkillsecurity-and-hardening
addyosmani/agent-skills/skills/security-and-hardening/SKILL.md
Hardens code against vulnerabilities. Use when auditing an input handler for vulnerabilities, when handling user input, authentication, data storage, or external integrations, or when checking a login flow is safe against the OWASP Top Ten. Use when building any feature that accepts untrusted data, manages user sessions, or interacts with third-party services. Use when auditing dependencies for known vulnerabilities, triaging package-manager audit findings, or assessing supply-chain risk in a new package. Use when personal data or privacy compliance (GDPR, CCPA) is involved.
addyosmaniSkillshipping-and-launch
addyosmani/agent-skills/skills/shipping-and-launch/SKILL.md
Prepares production launches. Use when preparing to deploy to production, or when asking what needs to be in place before shipping. Use when you need a pre-launch checklist, when setting up monitoring, when planning a staged rollout, or when you need a rollback strategy.
addyosmaniSkilltest-driven-development
addyosmani/agent-skills/skills/test-driven-development/SKILL.md
Drives development with tests using the red-green-refactor loop. Use when implementing any logic, fixing any bug, or changing any behavior. Use when you need to prove that code works, when a bug report arrives, or when you're about to modify existing functionality.
addyosmaniSkillusing-agent-skills
addyosmani/agent-skills/skills/using-agent-skills/SKILL.md
Discovers and invokes agent skills. Use when starting a session, or when you need to decide which skill or workflow applies to the piece of work at hand. This is the meta-skill that governs how all other skills are discovered and invoked.
MicrosoftCLAUDE.mdplaywright
microsoft/playwright/CLAUDE.md
Directory | Purpose | |-----------|---------| | `tests/` | All test suites (page, library, playwright-test, mcp, etc.) | | `docs/src/` | API documentation — **source of truth** for public TypeScript types | | `docs/src/api/` | Per-class API reference (`class-page.md`, `class-locator.md
Agent instruction files
What are agent instruction files?
Plain text files in a repository that tell a coding agent how the project works: commands to run, conventions to follow and things to avoid. CLAUDE.md, AGENTS.md, cursor rules and skills are the common kinds.
CLAUDE.md or AGENTS.md?
CLAUDE.md is read by Claude Code. AGENTS.md is an open format that Codex, Cursor and other agents read. Many projects keep one and point the other at it.
What is a skill?
A folder with a SKILL.md that describes one capability, such as filling PDFs or reviewing code. The agent loads it only when the task calls for it.
Can I search my own team's files too?
Your agents already can, over MCP, limited to the files you're allowed to read. Searching them from this page is coming.