using-agent-skills is agent-read markdown (skill) from nota-america/forgecat-agent-profiles: 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..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Using Agent Skills
## Overview
Agent Skills is a collection of engineering workflow skills organized by development phase. Each skill encodes a specific process that senior engineers follow. This meta-skill helps you discover and apply the right skill for your current task.
## Skill Discovery
When a task arrives, identify the development phase and apply the corresponding skill:
```
Task arrives
│
├── Don't know what you want yet? ──────→ interview-me
├── Have a rough concept, need variants? → idea-refine
├── New project/feature/change? ──→ spec-driven-development
├── No quality bar written down? ──→ constraint-driven-development
├── Have a spec, need tasks? ──────→ planning-and-task-breakdown
├── Implementing code? ────────────→ incremental-implementation
│ ├── UI work? ─────────────────→ frontend-ui-engineering
│ ├── API work? ────────────────→ api-and-interface-design
│ ├── Need better context? ─────→ context-engineering
│ ├── Need doc-verified code? ───→ source-driven-development
│ └── Stakes high / unfamiliar code? ──→ doubt-driven-development
├── Writing/running tests? ────────→ test-driven-development
…
Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
GET https://markdownregistry.com/api/v1/artifacts/art_7miawdiw7f6f4ves
GET https://markdownregistry.com/api/v1/resolve?ref=nota-america/forgecat-agent-profiles/using-agent-skills
GET https://markdownregistry.com/api/v1/blob/30787ef2c77bf1a4729fffed0f6523ba6fcbe81bdc436b36371b78c21394d3c3
Your agent does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-claude/.claude/skills/api-and-interface-design/SKILL.md · Guides stable API and interface design. Use when designing APIs,
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-claude/.claude/skills/browser-testing-with-devtools/SKILL.md · Tests in real browsers via Chrome DevTools MCP. Use when building
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-claude/.claude/skills/ci-cd-and-automation/SKILL.md · Automates CI/CD pipeline setup. Use when setting up or modifying
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-claude/.claude/skills/code-review-and-quality/SKILL.md · Conducts multi-axis code review. Use before merging any change. Use
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-claude/.claude/skills/code-simplification/SKILL.md · Simplifies code for clarity. Use when refactoring code for clarity
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-claude/.claude/skills/constraint-driven-development/SKILL.md · Establishes a project's quality bar as a written contract and stops
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-claude/.claude/skills/context-engineering/SKILL.md · Optimizes agent context setup. Use when starting a new session,
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-claude/.claude/skills/deprecation-and-migration/SKILL.md · Manages deprecation and migration. Use when removing old systems,
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-claude/.claude/skills/documentation-and-adrs/SKILL.md · Records decisions and documentation. Use when you need to document
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-claude/.claude/skills/doubt-driven-development/SKILL.md · Subjects every non-trivial decision to a fresh-context adversarial
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…
shashankswe2020-ux/whoop-mcp · .github/skills/using-agent-skills/SKILL.md · Discovers and invokes agent skills. Use when starting a session or when you need to discover which skill applies to the…
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-cursor/.cursor/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…
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-codex/.agents/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…
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-claude/.claude/skills/using-agent-skills/SKILL.md · Discovers and invokes agent skills. Use when starting a session, or
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-forgecat/skills/using-agent-skills/SKILL.md · Discovers and invokes agent skills. Use when starting a session or when you need to discover which skill applies to the…
nota-america/forgecat-agent-profiles · profiles/addyosmani/agent-skills/for-forgecat/platforms/codex/.agents/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…
naimkatiman/continuous-improvement · third-party/addy-agent-skills/skills/using-agent-skills/SKILL.md · Discovers and invokes agent skills. Use when starting a session or when you need to discover which skill applies to the…
