Apply on any coding task before writing code — implement a feature, fix a bug, refactor, add code, write a function, wire up a component. Walks a 7-rung reuse ladder (understand the flow → YAGNI → existing code → stdlib → native platform → installed dependency → shortest working diff), stopping at the first rung that holds, so the change reuses over rewrites and adds only the minimum. Stays silent on prose, analysis, explanation, and review tasks that author no code.
How to install reuse-first?
nvzver/claude-marketplace/reuse-first
$npx -y skills add nvzver/claude-marketplace --skill reuse-firstInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Run `npx skills use "https://github.com/nvzver/claude-marketplace" --skill "nvzver/claude-marketplace/reuse-first"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/nvzver/claude-marketplace" that are relevant to the current task. Run `npx skills add "https://github.com/nvzver/claude-marketplace"` and select the relevant skills, then follow their instructions.
Related
6 picksType
- improve-codebase-architectureScan a codebase for deepening opportunities, present them as a visual HTML report, then grill through whichever one you pick.Jul 2026
- domain-modelingBuild and sharpen a project's domain model. Use when the user wants to pin down domain terminology or a ubiquitous language, record an architectural decision,…Jul 2026
- caveman-reviewUltra-compressed code review comments. Cuts noise from PR feedback while preserving the actionable signal. Each comment is one line: location, problem, fix.Jul 2026
- codebase-designShared vocabulary for designing deep modules. Use when the user wants to design or improve a module's interface, find deepening opportunities, decide where a…Jul 2026
- code-reviewReview the changes since a fixed point (commit, branch, tag, or merge-base) along two axes — Standards (does the code follow this repo's documented coding…Jul 2026
- resolving-merge-conflictsUse when you need to resolve an in-progress git merge/rebase conflict.Jul 2026
