Review a changeset for the Common Fabric repo — the local branch diff vs main, or a GitHub PR. Flags correctness and regression bugs loudly, checks that runtime-semantics changes stay coherent across docs/comments/examples, catches duplicated core machinery (hashing, serialization, cloning, identity) and code fighting the transformer/reactive model, and scrutinizes whether the tests guard the right principles. Report-first; offers to post a self-signed PR review. Use when asked to review code, review a PR, review the current branch or diff, or self-review before pushing. Invoke as /cf-review or /cf-review <PR#>.
Agent-specific interaction patterns for working with FUSE-mounted spaces. Use when deploying patterns via FUSE, working with Activity Logs, Annotations, or coordinating agent workflows that read/write pieces through the filesystem. Triggers include "deploy a pattern", "log an event", "create annotation", "agent workflow", or managing piece lifecycle via FUSE.
Critic agent that reviews pattern code for violations of documented rules, gotchas, and anti-patterns. Produces categorized checklist output with [PASS]/[FAIL]/[WARN] for each rule.
Guide for developing Common Fabric patterns (TypeScript modules that define reactive data transformations with UI). Use this skill when creating patterns, modifying existing patterns, or working with the pattern framework. Triggers include requests like "build a pattern", "fix this pattern error", "deploy this piece", or questions about handlers and reactive patterns.
Build Common Fabric patterns and sub-patterns
Guide for using the cf (Common Fabric) CLI to interact with pieces, patterns, and the Common Fabric. Use this skill when deploying patterns, managing pieces, linking data between pieces, or debugging pattern execution. Triggers include requests to "deploy this pattern", "call a handler", "link these pieces", "get data from piece", or "test this pattern locally".
Convert Common Fabric pattern unit tests (`*.test.tsx` driven by actions and computed assertions) into browser integration tests (`packages/patterns/integration/*.test.ts`) that exercise the rendered UI and can be recorded with `deno task demo`. Use when asked to promote, mirror, spot-check, browser-test, or make a video demo from an existing pattern test, including multi-user pattern tests.
Guide for hybrid workflows using CF FUSE filesystem mounting alongside the browser and CLI. Use when mounting spaces, editing cells via the filesystem, developing patterns for filesystem interaction, or combining browser + filesystem + CLI workflows. Triggers include "mount a space", "edit cells from filesystem", "use FUSE", "hybrid workflow", "filesystem sync", or working with pieces across both browser and CLI. For agent-specific patterns (deploying, activity logs, annotations), see the fuse-agent skill.