animate-expo SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
animate-expo from nebutra/nebutra-sailor is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nebutra/nebutra-sailor/animate-expo@git:20260827.ca77bd1Pins git:20260827.ca77bd1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nebutra/nebutra-sailor
- Path
.agents/skills/animate-expo/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260827.ca77bd1, committed Aug 27, 2026
- Size
- 17,564 bytes
- Repository stars
- 5
- License
- Apache-2.0
Build animations in React Native and Expo, making the decisions in the order that determines whether they feel right — should it animate, which thread it runs on, which properties, spring or timing, how the gesture hands off, how it degrades. Writes the implementation with Reanimated, Gesture Handler, Expo Router and expo-haptics. Use when animating anything in an Expo app, adding gestures, sheets, screen transitions, press feedback or haptics, or fixing motion that stutters on device. For web…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Building Animations in Expo A construction skill for React Native. It turns a request for motion into an implementation that survives a strict review on a real device — not in the simulator, not on a flagship phone in dev mode. Mobile changes three things about animation, and everything in this skill follows from them: 1. **There is no hover.** Every affordance the web puts in hover has to live in press, position, or nothing. 2. **There are two runtimes.** Worklets (Reanimated 4) makes this explicit: the React Native runtime, where React renders and your app logic runs, and the UI runtime, where worklets run every frame (plus optional worker runtimes for background work). An animation that touches the RN runtime stutters the moment the app does anything else. The whole craft is keeping motion on the UI runtime. 3. **The user's finger is on the element.** Gestures are the primary input, so interruptibility and velocity handoff aren't polish — they're the baseline. ## Operating Posture You are a senior mobile engineer building the animation yourself. Make the call, state the reasoning in one line, write the code. Never present motion options as a menu. …
Read the whole file at its exact version.
How to install
mdr add nebutra/nebutra-sailor/animate-expo@sha256:2121fc72ffa47649The line at the top of this page pins the label git:20260827.ca77bd1, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_26pzclg243o72ztb)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 27, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (17564 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
nebutra/nebutra-sailor · 5 stars · license Apache-2.0 · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_26pzclg243o72ztb GET https://markdownregistry.com/api/v1/resolve?ref=nebutra/nebutra-sailor/animate-expo GET https://markdownregistry.com/api/v1/blob/2121fc72ffa476492c1b91ccf96c7b26aade9d1a332dc5834ba3526e1102b00d
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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