davepoon/buildwithclaude · plugins/all-skills/skills/slack-message-formatter/SKILL.md

slack-message-formatter skillA

slack-message-formatter is agent-read markdown (skill) from davepoon/buildwithclaude: Format messages for Slack with pixel-perfect accuracy. Converts Markdown to rich HTML (for copy-paste into Slack) or Slack mrkdwn (for API/webhook). Use when the user asks to write a Slack message, announcement, or notification, format something "for Slack", preview how content looks in Slack, or send a message via Slack webhook. Also trigger when user mentions Slack formatting, mrkdwn, or wants to share Markdown content in Slack channels..

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 davepoon/buildwithclaude/slack-message-formatter@git:20260324.36d3f3f
Exact content
mdr add davepoon/buildwithclaude/slack-message-formatter@sha256:abedf511e4811a27

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_e4tfzfzkugm4jk3v.svg)](https://markdownregistry.com/a/art_e4tfzfzkugm4jk3v)

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Versions

versioncommittedcommitsizeaudit
git:20260324.36d3f3f latest2026-03-24 36d3f3f 3,966 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 (3966 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

davepoon/buildwithclaude · 3,477 stars · license MIT · pushed 2026-09-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_e4tfzfzkugm4jk3v
GET https://markdownregistry.com/api/v1/resolve?ref=davepoon/buildwithclaude/slack-message-formatter
GET https://markdownregistry.com/api/v1/blob/abedf511e4811a27d62fff36b7da55e37a37cac86c60b00898e60c9793de6ea8

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