vellum-ai/vellum-assistant · assistant/src/config/bundled-skills/messaging/SKILL.md

messaging skillA

messaging is agent-read markdown (skill) from vellum-ai/vellum-assistant: Read, search, send, and manage messages across Gmail, Outlook, Telegram, and other platforms.

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/messaging@git:20260908.19ccd5e
Exact content
mdr add vellum-ai/vellum-assistant/messaging@sha256:5d28d9fdc0411338

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_jyocmpluznwcgvq7.svg)](https://markdownregistry.com/a/art_jyocmpluznwcgvq7)

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Versions

versioncommittedcommitsizeaudit
git:20260908.19ccd5e latest2026-09-08 19ccd5e 16,192 BA view · diff
git:20260728.91649272026-07-28 9164927 15,750 BA view · diff
git:20260619.b5e01242026-06-19 b5e0124 15,598 BA view · diff
git:20260611.2d917b02026-06-11 2d917b0 14,754 BA view · diff
git:20260604.74a6ce62026-06-04 74a6ce6 14,728 BA view · diff
git:20260423.4486a5f2026-04-23 4486a5f 15,489 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 (16192 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 · 1,226 stars · license MIT · pushed 2026-09-10 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_jyocmpluznwcgvq7
GET https://markdownregistry.com/api/v1/resolve?ref=vellum-ai/vellum-assistant/messaging
GET https://markdownregistry.com/api/v1/blob/5d28d9fdc04113382c9428fcdd61eb25a9b5c12a49a474b5b851cf31ff9fd873