slack-formatting
This skill formats agent replies using Slack's mrkdwn syntax instead of standard markdown, since all replies are posted directly to Slack threads.
Identity proven by GitHub's verified organisation badge (modal-labs)
- Agents
- Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode, claude.ai and API
- License
- No license stated
- Pin
- 91c550fpinned Oct 9, 2026
- Context cost
- about 340 tokenswhen the skill loads
- GitHub stars
- 8on modal-labs/claude-managed-agents-modal-sandbox
- Scripts
- None found
What it does
“Format replies using Slack mrkdwn syntax (not standard markdown). Use whenever composing a reply that will be posted to a Slack thread — which, in this app, is every reply.”
Generated summary from the skill's own text
This skill formats agent replies using Slack's mrkdwn syntax instead of standard markdown, since all replies are posted directly to Slack threads. It provides conversion rules for text formatting, links, and lists, plus guidance on keeping responses concise and scannable.
When to use it
- Building an agent that posts replies to Slack threads
- Converting markdown-formatted responses to Slack mrkdwn syntax
- Creating agent replies with links, bold, code, or special formatting
- Ensuring Slack-posted messages render correctly with proper formatting
When not to
- Formatting messages for platforms other than Slack
- Agent doesn't interact with Slack or post to threads
- Using standard markdown is acceptable for your use case
Install
No license stated: install from the publisher's repository, and ask the author before you reuse or share it.
These commands install from the publisher's repository and need no account.
skills CLI
npx skills add modal-labs/claude-managed-agents-modal-sandbox --skill slack-formattingInstalls from the repository's default branch, which may have changed since the commit we checked.
GitHub CLI 2.90 or later
gh skill install modal-labs/claude-managed-agents-modal-sandbox slack-formatting@91c550f9cb4bbf41f9471881cb039056b4c255d5Installs the commit we checked (91c550f).
Copy by hand
Download the folder at 91c550f and put it in .claude/skills/slack-formatting for Claude Code and in .agents/skills/slack-formatting for Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode.
Copy for your agent
A prompt for any coding agent. It installs this skill from GitHub at the pinned commit, copies the files as they are, and runs nothing unless you ask.
Prompt
Install the agent skill "slack-formatting" by Modal. Source, pinned to commit 91c550f9cb4bbf41f9471881cb039056b4c255d5: https://github.com/modal-labs/claude-managed-agents-modal-sandbox/tree/91c550f9cb4bbf41f9471881cb039056b4c255d5/examples/slackbot/skills/slack-formatting 1. Download that folder at exactly this commit. Do not use the default branch. 2. Copy every file unchanged, keeping the folder structure, into .claude/skills/slack-formatting/ for Claude Code and .agents/skills/slack-formatting/ for Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode. Create the folders if they do not exist. 3. Do not edit the files, and do not run any script in the folder unless I ask you to. 4. When you are done, list the files you copied and where you put them. Its license is restricted or not stated. Show me the license terms from the repository before you copy anything. Listing and checks: https://www.agentnative.dev/skills/modal/slack-formatting
SKILL.md at the pin
The license of this skill does not let us show its files here.
Files
- SKILL.md1.6 KB · f861b510dde6
1 file, 1.6 KB in total. Each file has a sha256 in the pin's manifest; the first 12 characters are shown.
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