slack SKILL.md skillA
slack from vellum-ai/vellum-assistant is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vellum-ai/vellum-assistant/slack@git:20260916.5d1ccbcPins git:20260916.5d1ccbc in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vellum-ai/vellum-assistant
- Path
skills/slack/SKILL.md- Versions recorded
- 9
- Latest version
- git:20260916.5d1ccbc, committed Sep 16, 2026
- First version recorded
- Jun 3, 2026
- Size
- 18,573 bytes
- Repository stars
- 1,467
- License
- MIT
Send, read, and manage Slack messages.
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
You help users interact with their Slack workspace. **Sending text is its own command: `assistant channels send`.** It posts through the same path a reply takes, so the message is threaded where you name a thread, rendered the way your other messages are, and recorded in the chat's conversation once Slack acknowledges it. That record is what lets you see later what you said, and what lets a reaction or an edit on that post find it again. **Everything else is the Slack Web API, through one of two doors.** As the assistant's own bot: `assistant channels request slack <path>`, which resolves the bot credential from the channel so you never name a provider (`assistant oauth request --provider slack_channel` is the same bot door under its provider name). As the person who connected the `slack` integration: `assistant oauth request --provider slack <path>`, for `search.messages` and anything that needs the installer's reach. Reading, reactions, opening a DM, uploading a file, and any method with no first-class command go through them. Use relative Slack API method paths such as `/conversations.history`; the provider supplies the Slack host. …
Read the whole file at its exact version.
How to install
mdr add vellum-ai/vellum-assistant/slack@sha256:1d01328799b7a2a7The line at the top of this page pins the label git:20260916.5d1ccbc, 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_3khavu5xsplnlmdf)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 9 versions of this file, between Jun 3, 2026 and Sep 16, 2026, about one every 13 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260916.5d1ccbc latest | 2026-09-16 | 5d1ccbc | 18,573 B | A | view · diff |
| git:20260914.7be2737 | 2026-09-14 | 7be2737 | 18,053 B | A | view · diff |
| git:20260914.61bbad3 | 2026-09-14 | 61bbad3 | 16,994 B | A | view · diff |
| git:20260909.88e237a | 2026-09-09 | 88e237a | 14,435 B | A | view · diff |
| git:20260903.e55839f | 2026-09-03 | e55839f | 13,593 B | A | view · diff |
| git:20260828.ab9771c | 2026-08-28 | ab9771c | 10,239 B | A | view · diff |
| git:20260612.d606677 | 2026-06-12 | d606677 | 8,148 B | A | view · diff |
| git:20260604.74a6ce6 | 2026-06-04 | 74a6ce6 | 8,146 B | A | view · diff |
| git:20260603.ff934d9 | 2026-06-03 | ff934d9 | 8,496 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 (18573 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
vellum-ai/vellum-assistant · 1,467 stars · license MIT · pushed 2026-10-29 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3khavu5xsplnlmdf GET https://markdownregistry.com/api/v1/resolve?ref=vellum-ai/vellum-assistant/slack GET https://markdownregistry.com/api/v1/blob/1d01328799b7a2a7bfb27bef1b560d25aaacb0ba39766c6a78f6018614361c4b
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.
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