Define Use Case
Capture a single use case for a target project. Collects a free-form description from the user, produces a formalized version (summary, acceptance criteria, pitfalls), runs a clarifying-question loop, and saves the result as an incrementally-numbered Markdown file in the target project's `use-cases/` folder. After saving, offers to define another use case or continue to implementation via the `develop` skill. Use when the user wants to document what the project should do, before or instead of jumping into implementation.
Security AStatic scan found no risk patternsHow grading works ›
From the source SKILL.md
Entry point for adding a single use case to a target project. The skill is deterministic: one use case per invocation, no batching. Run it again to add another.
What this skill does
Define Use Case is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/define-use-case/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when the user wants to document what the project should do, before or instead of jumping into implementation.
Who uses this skill
The Define Use Case Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 174,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
How to install
Free
Manual install (2 steps)
mkdir -p ~/.claude/skills/define-use-case
curl -L https://claudskills.com/skills/define-use-case/SKILL.md \
-o ~/.claude/skills/define-use-case/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/define-use-case/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/define-use-case/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\define-use-case\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Telegram
📱 Install from your phone or desktop Telegram
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
Pro
One-click install via the desktop app
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
Pro
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
Frequently asked questions
How do I install the Define Use Case Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/define-use-case/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Define Use Case skill do?
Capture a single use case for a target project. Collects a free-form description from the user, produces a formalized version (summary, acceptance criteria, pitfalls), runs a clarifying-question loop, and saves the result as an incrementally-numbered Markdown file in the target project's `use-cases/` folder. After saving, offers to define another use case or continue to implementation via the `develop` skill. Use when the user wants to document what the project should do, before or instead of jumping into implementation.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Define Use Case skill?
Use Define Use Case when your Claude Code task falls under the General category — specifically in the general misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Define Use Case" or describe the task and let Claude pick). Browse related skills at
/category/general/.
What is a Claude Code skill and how does the Define Use Case skill fit in?
A Claude Code skill is a
SKILL.md file that lives under
~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Define Use Case is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at
/learn/what-is-a-claude-skill/.
Attribution & license
Cite this skill
If you reference this skill in a blog post, paper, or documentation, you can cite it as:
APA
HaroldHormaechea. (2026). Define Use Case [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/define-use-case/
BibTeX
@misc{define-use-case-2026,
author = {HaroldHormaechea},
title = {Define Use Case [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/define-use-case/}
}Embed this skill
Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →
Badge
[](https://claudskills.com/skills/define-use-case/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/define-use-case.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/define-use-case.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Define Use Case"></iframe>
Security scan
Grade A · scanned 2026-08-02 — free static scan against the OWASP Agentic Skills Top 10.
No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›
- ✓ Prompt injection
- ✓ Data exfiltration
- ✓ Supply chain
- ✓ Reverse shell
- ✓ Credentials
- ✓ Execution
- ✓ Filesystem
- ✓ Persistence
- ✓ Obfuscation
- ✓ Network
Show this grade on your repo (click to copy):
[](https://claudskills.com/skills/define-use-case/#security)
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