channel-digest

channel-digest is a command for coding agents from slackapi/slack-skills-plugin. It costs 10 tokens per session (278 once invoked), scanned A, original, MIT.

A command that summarizes recent activity from several Slack channels, where channels are separate discussion spaces in a workplace messaging service.

In plain words
What is it for?
It helps produce a short digest of topics, decisions, questions, and notable messages from named channels.
Why use it?
It removes the need to read every recent message across multiple channels to find important updates.

Command

Part of the slack plugin — 8 skills, 5 commands, 1 MCP server shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/slackapi/slack-skills-plugin/channel-digest
Clone the repo
git clone --depth 1 https://github.com/slackapi/slack-skills-plugin

Or install slack, the plugin that ships this one along with the rest of its 8 skills, 5 commands, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for channel-digest

README.md
[![agentmods](https://agentmods.dev/badge/commands/slackapi/slack-skills-plugin/channel-digest.svg)](https://agentmods.dev/commands/slackapi/slack-skills-plugin/channel-digest)
Your own site
<a href="https://agentmods.dev/commands/slackapi/slack-skills-plugin/channel-digest"><img src="https://agentmods.dev/badge/commands/slackapi/slack-skills-plugin/channel-digest.svg" alt="Measured on agentmods" height="20"></a>
Per session 10 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 278 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00010 $0.00278
Opus 5 $0.00005 $0.00139
Sonnet 5 $0.00002 $0.00056
Haiku 4.5 $0.00001 $0.00028

Measured 4d ago against content hash b09dafebae25, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

channel-digest scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

commands/channel-digest.md · 35 lines

What it actually says

Given the comma-separated channel names provided in $ARGUMENTS (strip leading # and whitespace from each):

  1. Parse the argument into individual channel names. Strip leading # and whitespace from each name.

  2. For each channel: a. Use slack_search_channels to find the channel ID. b. Use slack_read_channel to read recent messages (use a limit of 50 messages per channel to keep things manageable). c. Summarize the key activity in that channel: main topics, decisions, questions, and notable messages.

  3. Present the digest in this format:

    **Channel Digest — <today's date>**
    
    **#channel-1**
    - Summary point 1
    - Summary point 2
    
    **#channel-2**
    - Summary point 1
    - Summary point 2
    
    ...
    
  4. For each channel, keep the summary to 3-5 bullet points maximum. Focus on what's actionable or noteworthy.

  5. If a channel has no recent activity, note that it's been quiet and mention when the last message was posted (if visible).

  6. If a channel name can't be found, let the user know and continue with the remaining channels.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 35 lines · 10 tokens per session scan A b09dafebae25

Subscribe to this mod's changes

channel-digest is a command published in the GitHub repository slackapi/slack-skills-plugin (117 stars, last pushed today), licensed MIT. It adds 10 tokens to every session and 278 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.