stack-contextlisted

<!-- Note on the `model: haiku` pin above: this skill's own work — reading package.json, running `npm view`, diffing semver, skimming a release-notes page for bullet points — is mechanical. It runs at the *start* of nearly every dev-flow prompt (see "When to use"), so keeping it cheap matters more than for a once-per-PR pass like `core-review`. Escalate to the invoking prompt's own model only for judging *relevance* of a new API to the task at hand — that reasoning happens in the caller, not in this skill. Same portability caveats as `core-review` apply: Copilot ignores unknown skill attributes (cosmetic linter warning only), skills have no independent model on Copilot (they inherit the invoking prompt's), and Codex has no per-skill `model:` at all. --> # Silver Assist — Stack Context Reads what is **actually installed** in this project — exact `next`/`react` versions, not "Next.js" as a generic label — before any suggestion, plan, or fix is proposed. Every site in this org runs Next.js 15/16 and React 19, but a suggestion drafted from general training data routinely regresses to older patterns (Pages Router idioms, pre-App-Router data fetching, `getServerSideProps`) or misses a capability that shipped two minor versions ago because nothing in the conversation ever looked at `package.json`. This skill closes both directions of that gap: 1. **Don't suggest what's stale.** Ground every recommendation in the exact versions installed. 2. **Don't miss what's