walnut-demo SKILL.md skillA
walnut-demo from evanzhang008/open-walnut is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add evanzhang008/open-walnut/walnut-demo@git:20260824.e042aacPins git:20260824.e042aac in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- evanzhang008/open-walnut
- Path
examples/plugins/walnut-demo/skills/walnut-demo/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260824.e042aac, committed Aug 24, 2026
- Size
- 2,362 bytes
- Repository stars
- 34
- License
- MIT
Read the Walnut Plugin Demo's state and explain which Plugin capability does what.
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
# Walnut Plugin Demo Use this skill when someone asks what the Plugin Demo is doing, whether a plugin capability works, or how a plugin should use one. ## Read its state first Call `walnut_demo_snapshot` (optional `limit`, 1 to 10). It returns the demo's counters, the tasks in its own project, and the id of the one task it created. `GET /api/plugins/walnut-demo/stats` returns the same picture plus the full registration inventory, the action list, and the timer state. ## What the demo owns - One reserved project, `Walnut Plugin Demo [walnut-demo]`, claimed only when the persisted demo task proves ownership. Nothing else is claimed, and the Inbox can never be claimed by any plugin. - One task, created by the `task-create` action. Mutating actions require the id the demo persisted; list and query reads are limited to the `Plugin Demo` project. `task-cleanup` deletes the owned task. - One secret key, `demo-token`, holding a fixed dummy value. No code path returns a secret value: the demo reports key names and existence only. - Its own storage: JSON and text files plus a private SQLite database with versioned migrations. ## What it will not do …
Read the whole file at its exact version.
How to install
mdr add evanzhang008/open-walnut/walnut-demo@sha256:9dc23cb1d256d642The line at the top of this page pins the label git:20260824.e042aac, 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_g6kwjzjiapuywwul)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 24, 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 (2362 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
evanzhang008/open-walnut · 34 stars · license MIT · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_g6kwjzjiapuywwul GET https://markdownregistry.com/api/v1/resolve?ref=evanzhang008/open-walnut/walnut-demo GET https://markdownregistry.com/api/v1/blob/9dc23cb1d256d642c5a01cc89a0b5ee126174d3094f1315b37faa4aa0edcb5e0
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.