Skills
A skill is a reusable procedure your AI tool follows when you ask — an impact analysis, a change record, a prompt rebuild.
- SkillUSD 2
Profiling Session
Runs a structured profiling pass on a slow path: capture under realistic load, read the profile without jumping at the first red bar, and name where the time truly goes — the measurement that must precede any optimisation.
Best for: Before optimising anything — to find out what is actually slow
- SkillUSD 2
Caching Strategy
Designs caching that speeds the system up without serving lies: what to cache where, for how long, how it invalidates — and the authoritative source kept authoritative, so a cache flush never breaks the product.
Best for: Systems recomputing the same expensive answer all day
- SkillUSD 2
Accessibility Sweep
Runs a fast, structured accessibility pass over a page or component: keyboard, labels, contrast, focus, announcements — the checks that catch most real exclusion, sized to fit inside a normal review.
Best for: Checking a new screen before it ships, in minutes not days
- SkillUSD 2
Alt Text Writer
Writes alternative text that does the image's actual job: conveys what the image means in its context, marks the decorative as decorative, and handles the hard cases — charts, screenshots, diagrams — properly.
Best for: Content teams publishing images daily without an alt-text habit
- SkillUSD 2
Hardcoded String Sweep
Finds every user-facing string hiding in your code — the error in the service layer, the label in the component, the email subject in the job — and moves them to your message files without changing behaviour.
Best for: Preparing a codebase for its first translation
- SkillUSD 2
Locale Test Matrix
Designs the test matrix that catches locale bugs before launch: which languages and regions to test against which flows, the known trouble spots per locale class, and the cases that find the date, plural and layout breaks.
Best for: Launching in new languages without testing all of everything
- SkillUSD 2
README Refresh
Rebuilds a project's README into the document newcomers actually need: what this is, how to run it (verified by running it), how to work on it — with the lies removed and the folklore written down.
Best for: READMEs last updated three jobs ago
- SkillUSD 2
API Endpoint Docs
Documents an API the way integrators need it: every endpoint with real request and response examples, every error with its trigger, auth explained once properly — verified against the actual API, not the intended one.
Best for: APIs documented only by their router file
- SkillUSD 2
Architecture Sketch
Draws your system as it actually is: the components, the data flows, the trust boundaries — as maintainable text-based diagrams with a written narrative, at the altitudes different readers need.
Best for: Systems whose only diagram is two years stale or in someone's head
- SkillUSD 2
Runbook Writer
Writes operational runbooks that work at 3am: for each alarm or task, what it means, what to check in order, the exact commands, and when to escalate — tested against the system so the night shift is not debugging the document.
Best for: Alerts whose response procedure lives in one veteran's memory
Also see the Agents.