Create Skill
This is TDD for documentation. You write pressure scenarios with subagents to watch them fail without the skill, document rules to make them pass, then iterate to close loopholes. The approach treats skills as onboarding guides for specialized knowledge: techniques, patterns, references, or tool integrations. It maps the RED-GREEN-REFACTOR cycle directly to skill creation, which means you always baseline agent behavior before writing instructions. The structure guidance is solid, frontmatter matters for discovery, and the flat namespace keeps things searchable. If you're writing skills that agents keep finding ways to rationalize around, the systematic pressure testing here will tighten them up.
- skills.sh installs
- 1.2K
- GitHub stars
- 1.8K
- last updated
- Aug 21, 2026
Install
$ npx -y skills add neolabhq/context-engineering-kit --skill create-skill --agent claude-codeInstalls into .claude/skills of the current project.
Files
Create Skill Command
This command provides guidance for creating effective skills.
Overview
Writing skills IS Test-Driven Development applied to process documentation.
Personal skills live in agent-specific directories (~/.claude/skills for Claude Code, ~/.codex/skills for Codex)
You write test cases (pressure scenarios with subagents), watch them fail (baseline behavior), write the skill (documentation), watch tests pass (agents comply), and refactor (close loopholes).
Core principle: If you didn't watch an agent fail without the skill, you don't know if the skill teaches the right thing.
REQUIRED BACKGROUND: You MUST understand Test-Driven Development before using this skill. That skill defines the fundamental RED-GREEN-REFACTOR cycle. This skill adapts TDD to documentation.
Official guidance: The Anthropic's official skill authoring best practices provided at the /apply-anthropic-skill-best-practices command, they enhance prompt-engineering skill. Use skill and the document, as they not copy but add to each other. These document provides additional patterns and guidelines that complement the TDD-focused approach in this skill.
Sponsors
Agent CaffeineSponsoredClose your lid, come back to finished work
SnugSponsoredThe clipboard manager for the AI eraPromote your product hereReach 125k+ visitors monthly
WaxSponsoredBlock anything with supervision, without erasing your iPhonePromote your product hereReach 125k+ visitors monthly
knobsSponsoredSee your site on any phone, any day, in any languageDetails
- Repository
- github.com/neolabhq/context-engineering-kit
- Categories
- Testing & QA, Documentation, Skill Development
- First seen
- Jun 3, 2026
More from neolabhq/context-engineering-kit
All 63- Do Competitively1.2K
- Plan Do Check Act1.2K
- Commit1.2K
- Analyze Issue1.2K
- Create Command1.2K
- Create Hook1.2K
- Create Pr1.2K
- Setup Codemap Cli1.2K
- Actualize1.2K
- Git Worktrees1.2K
- Decay1.2K
- Attach Review To Pr1.2K
- Git Notes1.2K
- Setup Arxiv Mcp1.2K
- Propose Hypotheses1.2K
- Build Mcp1.2K
- Load Issues1.2K
- Create Workflow Command1.2K
- Query1.2K
- Status1.2K
- Reset1.2K
- Setup Context7 Mcp1.2K
- Prompt Engineering1.5K
- Context Engineering1.5K
Recommended
More Testing & QA
zodanivar/zod-skillZod v4 best practices, patterns, and API guidance for schema validation, parsing, error handling, and type inference in TypeScript applications. Covers safePars1.1Kskills.sh installs
app-preview-videoeronred/aso-skillsWhen the user wants to plan, script, produce, or optimize App Store Preview videos or Google Play promo videos — the autoplay videos that show in App Store/Play1.1Kskills.sh installs
develop-web-gameopenai/skillsUse when Codex is building or iterating on a web game (HTML/JS) and needs a reliable development + testing loop: implement small changes, run a Playwright-based1.1Kskills.sh installs
deliver-edge-casesproduct-on-purpose/pm-skillsDocuments edge cases, error states, boundary conditions, race conditions, and recovery paths for a feature - the systematic catalog of what can go wrong and the934skills.sh installs
ultraqayeachan-heo/oh-my-claudecodeQA cycling workflow - test, verify, fix, repeat until goal met902skills.sh installs