Spec Driven Development
Creates specs before coding. Use when starting a new project, feature, or significant change and no specification exists yet. Use when requirements are unclear, ambiguous, or only exist as a vague idea. Use when a single requirement spans several independently testable capabilities and needs decomposing into a capab...
Overview
Spec Driven Development is a SKILL.md workflow from addyosmani/agent-skills. It is categorized under coding and links back to its reviewed source so users can inspect the complete instructions and bundled resources before installation.
Use Cases
Install Notes
# Review source first
open https://github.com/addyosmani/agent-skills/blob/main/skills/spec-driven-development/SKILL.mdCopy the reviewed skill folder into the skills directory used by your compatible agent.
Security Notes
AIToolly validated the published source structure and license automatically. Review addyosmani/agent-skills and any bundled scripts again before granting workspace, command, or network access.
Related Skills
Claude API
anthropics/skills
Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration. TRIGGER — read BEFORE opening the target file; don't skip because it "looks like a one-liner" — whenever: the prompt names Claude/Anthropic in any form (Claude, Anthr...
Skill Creator
anthropics/skills
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
MCP Builder
anthropics/skills
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
Source Driven Development
addyosmani/agent-skills
Grounds every implementation decision in official documentation. Use when you want authoritative, source-cited code free from outdated patterns. Use when building with any framework or library where correctness matters.
Using Agent Skills
addyosmani/agent-skills
Discovers and invokes agent skills. Use when starting a session or when you need to discover which skill applies to the current task. This is the meta-skill that governs how all other skills are discovered and invoked.
Context Engineering
addyosmani/agent-skills
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.