principle-test-behavior-not-implementation
Apply when you write, change, or keep a test.
Skill by edlng
Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/edlng-principle-test-behavior-not-implementation
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
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About
Use cases: testing, writing
Reviews
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What's inside
- Skill name
principle-test-behavior-not-implementation- Description
- Apply when you write, change, or keep a test. Assert what the code's users can observe, so that the test fails when that behavior breaks and keeps passing when only the internals change.
- License
- unknown
- Instructions
- 16 lines in SKILL.md · view on GitHub
Files (1)
- SKILL.md
The license isn't open source, so the instructions aren't shown here. Read SKILL.md on GitHub
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Signals
- Stars
- 2
- Forks
- 0
- Open issues
- 0
- Last commit (this folder)
- Oct 22, 2026 (6 days ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- License unknown
- Repository
- github.com/edlng/agents
- Website
- edlng.github.io/agents/
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
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Cite this page
principle-test-behavior-not-implementation skill. Agent Mart. https://agentmart.dev/skills/edlng-principle-test-behavior-not-implementation (last updated 2026-10-24)