vellum-ai/vellum-assistant · .cursor/skills/vellum-boundary-guard/SKILL.md

vellum-boundary-guard skillA

vellum-boundary-guard is agent-read markdown (skill) from vellum-ai/vellum-assistant: Check Vellum Assistant architecture and package boundaries. Use when editing imports, moving code, adding endpoints, touching assistant/gateway/client/skill boundaries, or reviewing architecture-sensitive changes..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add vellum-ai/vellum-assistant/vellum-boundary-guard@git:20260521.b4bdd7a
Exact content
mdr add vellum-ai/vellum-assistant/vellum-boundary-guard@sha256:a6478f99453eccc9

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_i3mf57r6gas7evup.svg)](https://markdownregistry.com/a/art_i3mf57r6gas7evup)

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Versions

versioncommittedcommitsizeaudit
git:20260521.b4bdd7a latest2026-05-21 b4bdd7a 1,999 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (1999 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

GitHub

vellum-ai/vellum-assistant · 1,277 stars · license MIT · pushed 2026-09-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_i3mf57r6gas7evup
GET https://markdownregistry.com/api/v1/resolve?ref=vellum-ai/vellum-assistant/vellum-boundary-guard
GET https://markdownregistry.com/api/v1/blob/a6478f99453eccc908d5b88e1d568d81d0254fb3fbf8687b22c598ff2f3cbb1f

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.