testing
Use when deciding what evidence can expose a credible software fault.
Skill by nmnmcc
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/nmnmcc-testing
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
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Permissions
What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.
- Tools
- No tools found
- Secrets
- None asked for
- Install scripts
- None found
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/testing
What's inside
- Skill name
testing- Description
- Use when deciding what evidence can expose a credible software fault.
- License
- MIT
- Instructions
- 12 lines in SKILL.md · view on GitHub
Files (3)
- SKILL.md
- openai.yaml · agents/
- guide.md · references/
SKILL.md (first lines)
# Testing Treat a test as an experiment. Add or run one when a concrete unknown remains, a credible wrong behavior is possible, and the result would change the implementation or release decision. 1. State the required behavior and the wrong behavior still left open. 2. Choose the smallest boundary with an independent oracle. 3. Exercise the case, boundary, failure, or recovery that can distinguish them. 4. Read every result and report what remains untested. Read [the detailed guide](references/guide.md) for test sensitivity, doubles, flaky signals, properties, or suite design. A justified "no new test" is a valid result when existing evidence is sufficient.
From nmnmcc/skills, MIT.
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pattern
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study
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Use when an unfamiliar, costly, or high-risk task needs evidence before a decision or change.
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typesafe
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Use when data, runtime values, types, contracts, and allowed operations must stay aligned.
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ux
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Use when product behavior, interface, or content must improve for the people using it.
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docs
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Use when documentation or comments must explain current behavior to a specific reader.
SkillBFreshness: B★ 3Claude Code +9
Signals
- Stars
- 3
- Forks
- 0
- Open issues
- 0
- Last commit (this folder)
- Sep 8, 2026 (1 month ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- MIT
- Repository
- github.com/nmnmcc/skills
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
More from nmnmcc
- 0.563score
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Use when choosing the smallest complete design that meets the real need.
SkillBFreshness: B★ 3Claude Code +9 - 0.563score
dx
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Use when developers need a clearer path to understand, change, verify, or operate software.
SkillBFreshness: B★ 3Claude Code +9 - 0.563score
effect
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Use when effects, dependencies, failures, resources, concurrency, or execution boundaries need explicit modeling.
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line
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Use when one technical rule must stay coherent across related modules.
SkillBFreshness: B★ 3Claude Code +9 - 0.563score
nobody-cares-how
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Use when user-facing behavior exposes implementation detail, jargon, or technical showmanship.
SkillBFreshness: B★ 3Claude Code +9 - 0.563score
self
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Use when responsibility, authority, or handoff is unclear between people, agents, or systems.
SkillBFreshness: B★ 3Claude Code +9
Cite this page
testing skill. Agent Mart. https://agentmart.dev/skills/nmnmcc-testing (last updated 2026-10-24)