Next.js

Describe the framework task directly, for example: “Review build scripts in apps/store” or “Migrate apps/store from Next.js 15.5 to Next.js 16.” Optional review or migrate prefixes express the same tasks.

1. Target. Read target-selection.md, then resolve the package/subproject and Next.js version from explicit task inputs and that package's evidence. Complete its clarification gate before reading a version resource or taking a version-dependent action. Finish this step with a read plan naming the package, requested task, compatibility target, and allowed version resource(s). Complete the plan before issuing any read that includes a version resource.
2. Load. For a resolved Next.js 15.5 target, read 15.5.md. For Next.js 16, read 16.md. Read both only for an explicit 15.5-to-16 migration or multiple resolved targets, grouping notes by target. Execute the read plan only. For a single-target compatibility review, an explicit override selects exactly one version resource; the installed or manifest version is evidence, not permission to read its resource. A review targeting 16.0.10 with a 15.5.9 manifest reads only 16.md. Source-plus-target loading requires a requested migration comparison with both roles resolved.
3. Apply. Match framework APIs, environment floors, build configuration, and migration traps to the selected target. Confirm the target package's React compatibility separately before any React-dependent advice. Standalone React implementation belongs to the separate React family; a Next.js task can finish from this directory without finding a peer skill.
4. Verify. Report the package path, target/version evidence (including an intentional override), selected references, recommendations or applied changes, and actual checks. Distinguish guidance from verified runtime behavior; report unavailable checks as NOT_RUN.

Resource boundary

Resolve bundled links relative to this skill's real directory. Before loading a selected resource, verify that it exists and its real path stays within this directory. Missing, absolute, traversal, or symlink-escaping required resources return BLOCKED_RESOURCE_MISSING; stop the dependent action without searching the checkout, predecessor skills, sibling skills, or environment for a copy. Target project manifests and source files are explicit task inputs, not bundled fallback resources.

Output

Return target-scoped Next.js guidance or changes, the relevant migration traps, and verification evidence. For unresolved targets, return one grouped clarification and wait; provide no version-specific recommendation yet.