prior-art
Discover how a codebase already handles a specific concern — search broadly, find every instance, and assess consistency. The "how does this app do X?" tool.
npx skills add majiayu000/claude-skill-registry --skill prior-art --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
## Behavior Research how this codebase handles `$ARGUMENTS`. Explore the codebase thoroughly and report what you find. ### Step 1: Search Broadly Cast a wide net across the codebase. Use multiple search strategies: - **Grep for keywords** — search for terms related to the concern (e.g. for error reporting: `error`, `exception`, `rescue`, `Sentry`, `Bugsnag`, `notify`, `report`) - **Check common Rails locations** — initializers, middleware, concerns, base classes, config files, lib/ - **Check the Gemfile** — are there gems related to this concern? What do they tell you about the approach? - **Check application-level base classes** — `ApplicationController`, `ApplicationRecord`, `ApplicationJob` — these often set patterns that everything inherits - **Check for dedicated directories or files** — service objects, concerns, lib/ modules that handle this concern Don't stop at the first result. The goal is to find every place this concern is handled — the consistent pattern and the exceptions. ### Step 2: Check Git History For the key files involved in this concern: - `git log --oneline -10 <file>` to see recent changes - `git log --all --oneline --grep="<keyword>"` to find commits relate
- Behavior
- Step 1: Search Broadly
- Step 2: Check Git History
- Step 3: Map What You Found
- Output Format
- Tone
What does the prior-art skill do?
Discover how a codebase already handles a specific concern — search broadly, find every instance, and assess consistency. The "how does this app do X?" tool.
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill prior-art --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.