Is the Animation Review skill free?

Yes. The skill itself is free from jaaaaaaaaaaack/custom-skills. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Animation Review SkillProof Score?

8.0/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 5/10, docs & honesty 5/5.

How do I install Animation Review?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Animation Review with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Animation Review

Record a browser animation and get frame-level analysis from Gemini for timing and jank

by jaaaaaaaaaaack · jaaaaaaaaaaack/custom-skills

Works with setup

Install — copy the command Download source ↗

Test report

Verdict: Works with setup
Score: 8.0/10
Tested: Jul 17, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · eaf6034

analyze.py compiles cleanly and correctly gates on a GEMINI_API_KEY; ffmpeg is present but google-genai and playwright are not installed, and the Gemini video analysis needs a paid key, so the actual output could not be measured against a no-skill baseline. SKILL.md is unusually honest: it frames Gemini's frame descriptions as observational evidence and its root-cause theories as unverified hypotheses, with an explicit FPS/temporal-precision table per mode. Scored setup rather than pass because the delta is unmeasured, not because anything failed.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 5/10
Docs & honesty 5/5

What Animation Review does

Records web animations via Playwright and sends the video to Gemini for frame-level analysis across check/review/diagnose/inspire modes. Triggers when reviewing UI animation timing, feel, glitches, or decomposing a reference effect. Requires a Gemini API key plus ffmpeg, playwright and google-genai.

How to install Animation Review

git clone https://github.com/jaaaaaaaaaaack/custom-skills
mkdir -p ~/.claude/skills
cd custom-skills && cp -r animation-review ~/.claude/skills/animation-review

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Animation Review

/animation-review Record a browser animation and get frame-level analysis from Gemini for timing and jank

It also activates on plain-language prompts like these:

Record this button hover animation and tell me if it's janky
Diagnose why this page transition feels glitchy on camera
Decompose this reference animation effect frame by frame

Frequently asked questions

Is the Animation Review skill free?: Yes. The skill itself is free from jaaaaaaaaaaack/custom-skills. SkillProof publishes the install command and an independent test verdict at no cost.
Does Animation Review work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 17, 2026. Verdict: Works with setup. analyze.py compiles cleanly and correctly gates on a GEMINI_API_KEY; ffmpeg is present but google-genai and playwright are not installed, and the Gemini video analysis needs a paid key, so the actual output could not be measured against a no-skill baseline. SKILL.md is unusually honest: it frames Gemini's frame descriptions as observational evidence and its root-cause theories as unverified hypotheses, with an explicit FPS/temporal-precision table per mode. Scored setup rather than pass because the delta is unmeasured, not because anything failed.
What is the Animation Review SkillProof Score?: 8.0/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 5/10, docs & honesty 5/5.
How do I install Animation Review?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Animation Review with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.