mobile-storage-mmkv SKILL.md skillA
mobile-storage-mmkv from agents-inc/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add agents-inc/skills/mobile-storage-mmkv@git:20261016.afd0e14Pins git:20261016.afd0e14 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- agents-inc/skills
- Path
src/skills/mobile-storage-mmkv/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261016.afd0e14, committed Oct 16, 2026
- First version recorded
- Jul 9, 2026
- Size
- 14,558 bytes
- Repository stars
- 26
- License
- MIT
MMKV high-performance key-value storage for React Native - synchronous JSI-based reads/writes, encryption, typed hooks, multiple instances, listeners, persistence middleware adapters.
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
# MMKV Storage Patterns > **Quick Guide:** Use `createMMKV()` for synchronous key-value storage (~30x faster than AsyncStorage). One singleton instance per concern (global app, per-user). Use typed hooks (`useMMKVString`, `useMMKVObject`) for reactive components. Enable encryption with `encryptionKey` for sensitive data. V4 is a Nitro Module requiring `react-native-nitro-modules` and React Native 0.75+. --- <critical_requirements> ## CRITICAL: Before Using This Skill **(You MUST reuse a single MMKV instance per concern -- NEVER call `createMMKV()` on every render or in component bodies)** **(You MUST use typed getters (`getString`, `getNumber`, `getBoolean`) -- NEVER parse the return value of the wrong getter)** **(You MUST use `remove()` to delete keys -- `delete()` was renamed in v4 due to C++ keyword conflict)** **(You MUST install `react-native-nitro-modules` alongside `react-native-mmkv` -- v4 is a Nitro Module)** </critical_requirements> --- …
Read the whole file at its exact version.
How to install
mdr add agents-inc/skills/mobile-storage-mmkv@sha256:3095a794440532d6The line at the top of this page pins the label git:20261016.afd0e14, 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_2ht2irvmod547wrk)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 9, 2026 and Oct 16, 2026, about one every 99 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261016.afd0e14 latest | 2026-10-16 | afd0e14 | 14,558 B | A | view · diff |
| git:20260709.eeb9e6c | 2026-07-09 | eeb9e6c | 14,757 B | A | view |
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 (14558 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
agents-inc/skills · 26 stars · license MIT · pushed 2026-10-27 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2ht2irvmod547wrk GET https://markdownregistry.com/api/v1/resolve?ref=agents-inc/skills/mobile-storage-mmkv GET https://markdownregistry.com/api/v1/blob/3095a794440532d6cac7d3e7a1f42ad45b5a64a12c4be0332ae682a7b1e1f37d
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.