Browse skills

Generates conventional commit messages from diffs with scope, breaking change flags, and issue refs.

Four hard rules that stop Claude from silently over-engineering, making wrong assumptions, or touching code it was never supposed to.

Generate or update a repository CHANGELOG.md in Keep a Changelog format from git history - grouping commits since the last tag into Added/Changed/Deprecated/Removed/Fixed/Security, rewriting them as user-facing entries, and recommending the semantic version bump. Use when someone asks "generate a changelog from the git log", "update CHANGELOG.md for this release", "what version bump does this release need", or "turn these commits into release notes". Do NOT use for writing benefit-first product announcement changelogs for end users from release notes - use changelog-writer instead; this skill produces the versioned CHANGELOG.md file that lives in the repo.

Write and review TypeScript as if strict mode plus the hardening flags (noUncheckedIndexedAccess, exactOptionalPropertyTypes) are enforced, and migrate loose codebases to full strictness flag by flag without breaking the build. Use when someone asks "how do I get rid of any", "turn on strict mode in an existing project", "is this type assertion safe", "why does tsc say possibly undefined", or when writing new TypeScript that must pass a strict compiler. Do NOT use for migrating between language or runtime versions - use language-version-migrator instead.

Run a systematic multi-pass code review - correctness, design, security, performance, tests - and report findings ordered by severity with concrete, respectful suggestions. Use when someone asks "review this PR", "review this diff", "what's wrong with this change", or wants a pre-merge quality gate on a branch. Do NOT use for a security-only deep audit of a change - use secure-code-review instead - or for writing the ticket or tracking artifact that describes the change - use jira-ticket-writer instead.

Generates a complete, professional README from a codebase scan - badges, usage, API docs, contributing guide.

Drive development with strict Red-Green-Refactor discipline - write one failing test, write the minimum code to pass it, refactor on green - including test-list planning and a worked kata cycle. Use when someone asks "write this test-first", "do TDD on this feature", "help me practice red-green-refactor", "write a failing test for this bug", or wants tests to drive a new module's design. Do NOT use for adding tests to existing untested legacy code before a refactor - use characterization-test-writer instead - or for designing shared fixtures and factories - use test-data-builder instead.

Turns a git diff into a structured pull request description with motivation, changes, and test plan.

Turns a natural-language video brief into a complete, ready-to-preview Remotion composition - extracts duration, scenes, brand colors, aspect ratio, and real copy; plans the frame budget; and writes data-driven React/TypeScript using useCurrentFrame, interpolate, spring, AbsoluteFill, and Sequence, registered in Root.tsx. Use when someone says "build a 20-second product demo video", "animate a feature walkthrough", "write the Remotion code for this marketing clip", or wants a scene-by-scene composition they can scrub in Studio. Do NOT use for rendering, iterating, or batching the finished MP4 - use remotion-render instead - or for installing and scaffolding the project - use remotion-setup instead.

Scaffolds a new Remotion video project wired for Claude Code Agent Skills - Node check, create-video scaffold, skills install, folder conventions, Google Fonts, and a smoke-test render. Use whenever someone wants to start making videos with Remotion and Claude, even just "make product videos with Claude."

Renders a Remotion composition to MP4 and runs the edit-and-re-render loop - CLI render commands, 1080p/4K/9:16 presets, concurrency tuning, codec selection, batch variants from a JSON data file, and Lambda for cloud rendering. Use when someone says "render this Remotion video", "export the composition to MP4", "the animation is too fast, fix and re-render", "batch render one video per customer", or "move rendering to Lambda". Do NOT use for authoring or restructuring scenes, animations, or components - use remotion-compose instead; do NOT use for project scaffolding and initial setup - use remotion-setup instead. This skill owns everything from a finished composition to a delivered file.

Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote - applies a decision ladder that cuts ~54% of generated code before a line is written.