From codebase-diagnostic
You've inherited a codebase and a deadline, and need to know what to actually work on. Trigger: Review my codebase. I have <N weeks> and success looks like <criteria>. What should I work on?
How this skill is triggered — by the user, by Claude, or both
Slash command
/codebase-diagnostic:codebase-diagnosticThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
You've inherited a codebase and a deadline, and need to know what to actually work on.
You've inherited a codebase and a deadline, and need to know what to actually work on.
Review my codebase. I have <N weeks> and success looks like <criteria>. What should I work on?
A prioritised diagnosis that refuses to start until it has your time horizon and what success means — then ranks the work against those two things, instead of handing back a generic best-practices checklist.
The generalised discipline:
Confirm the skill actually fires — in your own session, on your own data. No data leaves your machine.
Does it fire? Paste the prompt in demo-input.md. You should get the shape shown in expected-output.md.
On your data. Run it on your real input.
Confirm the shape. Save the output to a file and run:
node ${CLAUDE_SKILL_DIR}/scripts/check.mjs <your-output-file>
It reports ENGAGED when the output carries this skill's characteristic structure — the deterministic sign it fired. It checks shape, not quality; judge the content yourself.
The check runs entirely locally — nothing leaves your machine. If you want to add to the public "confirmed working" count, opt in explicitly:
node ${CLAUDE_SKILL_DIR}/scripts/check.mjs <your-output-file> --report https://skills-field-guide-proxy.nesper6311.workers.dev --skill codebase-diagnostic
That sends only an anonymous +1 — never your input, output, or identity.
Installed from the public field guide. Customize freely — this is a starting point built from the published projection of codebase-diagnostic.
Creates, edits, and optimizes skills for Claude Code, including drafting, evaluating with test prompts, iterating on performance, and improving skill descriptions for better triggering accuracy.
npx claudepluginhub marmalade7929/skills-registry-site --plugin codebase-diagnostic