frondruntime

Use when creating, migrating, reviewing, or cleaning up Frond node authoring in this repo, including NodeSpec carriers, NodeBase classes, static specs, Driver.Async/Effect hooks, dependencies, actions, liveness, refresh.

Use when creating commits, pull requests, release PRs, version bumps, npm publish dry-runs, package tarball smoke tests, or release notes for frondruntime.

Use when working with Bun package management, Bun workspaces, bun.lock, package scripts, Bun runtime APIs, Bun build commands, or Node/npm-to-Bun command translation in this repo.

Use before finishing coding work or after deterministic check failures, including lint/typecheck/test loops, interpreting diagnostics as just-in-time prompts, and deciding whether repeated implementation mistakes should become stricter rules.

Use when creating, reviewing, or modifying custom Biome Grit plugins in undefined*.grit, especially deterministic agent-correction rules for stale Effect v3 patterns, local style hazards, and diagnostic messages that tell agents what to do next.

Use when running, interpreting, or modifying Biome linting/formatting/import organization in this repo, including biome.json, Grit plugins, formatting fixes, and lint failures.

Use when creating, modifying, debugging, or running Bun tests with bun:test, including package-local test commands, async tests, mocks, spies, snapshots, and Effect.runPromise test boundaries.

Use after substantial edits, refactors, moves, generated changes, or long sessions to find leftovers, stale stubs, unused imports, accidental compatibility artifacts, and scratch files. Remove only confirmed non-behavioral leftovers; report anything that may affect compatibility or runtime behavior before changing it.