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.
npx skills add jtalk22/slack-mcp-server --skill slack-catch-upgit clone --depth 1 https://github.com/jtalk22/slack-mcp-serverWrote 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.
[](https://agentmods.dev/skills/jtalk22/slack-mcp-server/slack-catch-up)<a href="https://agentmods.dev/skills/jtalk22/slack-mcp-server/slack-catch-up"><img src="https://agentmods.dev/badge/skills/jtalk22/slack-mcp-server/slack-catch-up/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/jtalk22/slack-mcp-server/slack-catch-up"><img src="https://agentmods.dev/badge/skills/jtalk22/slack-mcp-server/slack-catch-up.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00092 | $0.01269 |
| Opus 5.5 | $0.00037 | $0.00508 |
| Sonnet 5.5 | $0.00018 | $0.00254 |
| Haiku 4.5 | $0.00009 | $0.00127 |
Grade A, and why
slack-catch-up 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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Catching up on Slack
The server gathers the evidence and you write the summary. Cite every claim by conversation name and message timestamp, plus the permalink when the row has one. Cut any line the reader cannot check.
Through a profile
- Call
slack_workflowsand use the profile the user names, or the one whoseworkflow_kindand channels fit the ask. - If none fits, create one with
slack_workflow_save. Give it aprofile_namethat says what it is for and the matchingworkflow_kindfrom the table below. Add channel IDs fromslack_list_conversations, or none to cover everything unread, andpriority_peopleIDs fromslack_users_searchwhen the user names people. The profile is saved on this machine and sends nothing to Slack. Tell the user its name, so the next catch-up is one call. - Call
slack_catch_me_upwithprofile_name, andsince(ISO 8601) when the user gives a window. Otherwise the cadence sets it: 24 hours foron_demandanddaily_8am, 7 days forweekly_monday. A profile with no channels reads the conversations waiting for the user, mentions first. - Write exactly the keys in
output_contract.expected_keys, from:signals.unanswered_threads, oldest first. "Unanswered" is mechanical: nobody replied, or the last reply is from the person who opened the thread. Whether it truly needs an answer is your call; say so when you make it.signals.priority_activityandsignals.mentions_of_priority_people.signals.busiest_conversations.continuity.commitments,continuity.owner_gapsandcontinuity.open_questions. These come from phrase and reply-count rules, each with the matched text and, when the workspace URL is known, a permalink. Check them against the message before you repeat them.
- Say where reading stopped. One catch-up reads at most 12 conversations, 30
messages from each, and 8 threads of 20 replies (
truncation.caps).truncation.conversations_dropped: conversations past the first 12.truncation.conversations_with_more_history: conversations with more than 30 messages in the window.truncation.thread_expansion_capped: some threads were not opened.scope.channels_not_foundlists each channel the profile names that could not be read, with the reason. Name every one, so its silence is not mistaken for a quiet channel.
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.
- 2d ago First seen · 90 lines · 92 tokens per session scan A 4ae75e5aa75a
slack-catch-up is a skill published in the GitHub repository jtalk22/slack-mcp-server (32 stars, last pushed 3d ago), licensed MIT. It adds 92 tokens to every session and 1,269 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-11-04.
slack-catch-up compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| slack-catch-upjtalk22/slack-mcp-server | Skill | 32 | 3d ago | MIT | A | 92 | Claude Code, Codex |
| help-flowgriddynamics/rosetta | Skill | 370 | today | Apache-2.0 | A | 13 | Claude Code, Codex |
| deja-reflectvshulcz/deja-vu | Skill | 1.4k | today | MIT | A | 49 | Claude Code |
| modernization-flowgriddynamics/rosetta | Skill | 370 | today | Apache-2.0 | A | 36 | Claude Code, Codex |
| external-lib-flowgriddynamics/rosetta | Skill | 370 | today | Apache-2.0 | A | 20 | Claude Code, Codex |
| coding-flowgriddynamics/rosetta | Skill | 370 | today | Apache-2.0 | A | 24 | Claude Code, Codex |
| coding-agents-prompting-flowgriddynamics/rosetta | Skill | 370 | today | Apache-2.0 | A | 28 | Claude Code, Codex |