slack SKILL.md skillA
slack from magnus919/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add magnus919/agent-skills/slack@git:20260804.3256a87Pins git:20260804.3256a87 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- magnus919/agent-skills
- Path
slack/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260804.3256a87, committed Aug 4, 2026
- Size
- 9,554 bytes
- Repository stars
- 162
- License
- MIT
Operate Slack workspaces from a terminal or agent: list channels, read messages, follow threads, search message history, list files, and verify inbound webhook signatures — with a bundled slack-cli script that is read-only by default and gates every send behind a --dry-run/--yes confirmation. Use when an agent needs to read or post Slack data, triage incidents, or answer questions about what was said in a workspace. Do not use for building Slack apps or bots (that is application development)…
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
# Slack Operations Use this skill to read and, with explicit confirmation, write Slack data through the Slack Web API: channels, messages, threads, search, files, and webhook signature verification. This is a **tool skill** for the Slack platform. Building Slack apps and bots is application development; workspace administration (user provisioning, org-level settings, SSO) lives in the Slack admin console. This skill owns the everyday agent workflow: knowing what was said, finding it later, and posting a reply when a human confirms. ## Operating contract 1. **Read-only discovery before any mutation.** List channels, read history, follow threads, search, and list files freely. The bundled `slack-cli` script makes reads without writing anything. 2. **Confirm the target, scope, and rollback path before acting.** Sending a message or replying in a thread changes shared workspace state visible to everyone: it requires an explicit human directive naming the channel, plus `--dry-run` preview and `--yes` confirmation through `slack-cli`. There is no "unsend" for team members who already read it. …
Read the whole file at its exact version.
How to install
mdr add magnus919/agent-skills/slack@sha256:235cff4856f0f952The line at the top of this page pins the label git:20260804.3256a87, 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_3byzci6fhsklhtho)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 4, 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 (9554 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
magnus919/agent-skills · 162 stars · license MIT · pushed 2026-11-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3byzci6fhsklhtho GET https://markdownregistry.com/api/v1/resolve?ref=magnus919/agent-skills/slack GET https://markdownregistry.com/api/v1/blob/235cff4856f0f952ccb45fa11d0c4731821bf2f2877d23834e0b9e132b4264c1
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.
More from magnus919/agent-skills
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