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Agent Skills
Agent Skills is a software library of engineering skills that guides AI coding agents through structured workflows.
Agent Skills provides production-grade engineering skills for AI coding agents. It encodes senior-engineer workflows, quality gates, and best practices across the full software lifecycle. The product includes 24 skills and eight slash commands that map to how software gets built, loading automatically to handle design, building, testing, reviewing, and shipping. It works with Claude Code, Codex, Cursor and 70+ agents to prevent shortcuts and enforce verification through evidence rather than assumptions. Each skill features structured steps, checkpoints, and exit criteria to ensure reliable software development.
Agent Skills at a glance
- Best for: Software engineer
- Pricing: Free
- Released: February 2026
- Category: AI coding tool
- Website: skills.addy.ie
Key features
- 24 structured skills spanning the whole SDLC
- Eight slash commands for different software development phases
- One-command installation into 70+ agents
- Inline rebuttals to stop agents from skipping steps
- Exit criteria requiring evidence and real runtime data
- Parallel review panel for shipping decisions
- Three-tier eval framework checking structure and execution traces
Use it for
- Designing APIs and writing product requirement documents
- Implementing incremental changes with test-driven development
- Conducting security and vulnerability assessments
- Auditing web performance and Core Web Vitals
Companion to
Tools whose articles name Agent Skills as a companion, each with its job for them.
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