vellum-ai/vellum-assistant · skills/vellum-workspace-theme/SKILL.md

vellum-workspace-theme skillA

vellum-workspace-theme is agent-read markdown (skill) from vellum-ai/vellum-assistant: Customize the app's visual theme — author design-token overrides (accent, background, surfaces, text, message-bubble colors) in the workspace ui/theme.json, validated by the assistant runtime and applied live to connected clients. Covers the token slots, the all-or-none override groups, the contrast floor, and reading back validation issues..

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-workspace-theme@git:20260711.8eb8e35
Exact content
mdr add vellum-ai/vellum-assistant/vellum-workspace-theme@sha256:15292a759d05d311

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_aittbuq7hcjkgakf.svg)](https://markdownregistry.com/a/art_aittbuq7hcjkgakf)

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Versions

versioncommittedcommitsizeaudit
git:20260711.8eb8e35 latest2026-07-11 8eb8e35 8,392 BA view · diff
git:20260710.b92d46b2026-07-10 b92d46b 7,201 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 (8392 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_aittbuq7hcjkgakf
GET https://markdownregistry.com/api/v1/resolve?ref=vellum-ai/vellum-assistant/vellum-workspace-theme
GET https://markdownregistry.com/api/v1/blob/15292a759d05d3110d4b60b64e0b93c48731e836d01b4eae85ac2f7281673ced

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