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Sending messages, navigating channels and DMs, threading, searching, and reacting in the Slack desktop app.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Read a folder of receipt images/PDFs, append rows to a LibreOffice Calc bookkeeping ledger (description, category, type, amount), save, and start a Mail draft with the sheet attached.
Use when asked to QA Nimbus Desk, run a qa/*.md behavioral spec, verify UI behavior, check a regression, or confirm a UI fix. Drives the running app through the root Holo MCP tool, holo_desktop(task), and returns a QA report.
Sub-agent that binds to one OS window on the user's machine and drives it in the background via H Company's Holo3 VLM. If direct Holo tools are not visible, search for holo_desktop tools. In NemoClaw, call holo_desktop_launch once, then poll the same run_id until it finishes, passing attached images/files as media_paths.
Creating, editing, and managing events, invites, and recurring schedules in the Apple Calendar desktop app.
Finding, creating, editing, and organizing contacts and groups in the Apple Contacts desktop app, including linked cards from multiple accounts.
Composing, sending, replying, searching, and triaging messages in the Apple Mail desktop app.
| name | Slack |
| description | Sending messages, navigating channels and DMs, threading, searching, and reacting in the Slack desktop app. |
| publisher | H Company |
| version | 1.0.0 |
| source_url | https://github.com/azmym/agent-skills |
| license | MIT |
| icon_url | https://api.iconify.design/logos:slack-icon.svg |
| bundle_id | com.tinyspeck.slackmacgap |
Slack is a three-pane Electron app: workspace switcher on the far left (when multiple workspaces are signed in), channel/DM sidebar next to it (with sections for unreads, threads, DMs, channels, apps), message pane in the middle, and a contextual right pane that opens for threads, profiles, search results, and pins. The composer sits at the bottom of the message pane.
Jump: Cmd+K opens the universal switcher — type a channel name (#general), a DM target (@alice), or a query and Return navigates. This is the single most-used shortcut; prefer it over clicking in the sidebar. Cmd+Shift+K browses DMs only.
Navigate: Cmd+[ / Cmd+] step back/forward through visited channels. Cmd+1 through Cmd+9 jump to a starred channel. Cmd+Shift+A opens All Unreads.
Compose: Esc while in a channel marks it read and clears focus. Click in the composer or hit Tab from the channel to start typing. Cmd+B/I/U for bold/italic/strike, Cmd+Shift+C for inline code, Cmd+Shift+9 for blockquote, Cmd+Shift+8 for bulleted list.
Search and discovery: Cmd+F searches inside the current channel; Cmd+G finds the next match. Workspace-wide search is in the top bar — Cmd+K then type or click the magnifier.
Reference: Cmd+/ opens Slack's full shortcut overlay anytime.
The composer formats with markdown-like syntax (asterisks for bold, backticks for code, > for quote) plus rich formatting via the toolbar at the bottom-left. @ triggers user/group mention autocomplete, # triggers channel autocomplete, : triggers emoji autocomplete. Channel mentions are not just decoration — @channel notifies everyone active, @here notifies everyone online; treat both as Gated and confirm before posting.
Threads: clicking a message's "Reply in thread" opens the right pane. By default thread replies post only in the thread; check "Also send to #channel" if the user wants the reply visible in the main timeline. New top-level posts go to the main channel — never use a thread when the user said "post in #channel" without thread context.
Match the channel's tone. A channel with all-lowercase one-line messages doesn't want a formatted memo back; a status update channel may want structured bullets. When unsure, mirror the most recent few messages in the thread.
Return sends; Shift+Return inserts a newline. Slack's default is Enter-sends, which means the moment a draft exists in the composer, a single keystroke makes it live. This is the central gotcha — never press Return until the user has confirmed.
Confirmation template before any write. Before sending, editing, deleting, reacting, or pinning, stop and summarize via answer:
To: #channel-name (or @user for DM) Action: Send / Edit / Delete / React / Pin Preview: (one-line summary, not the full body if it's already visible in the composer)
Send this?
Wait for explicit go-ahead. The composer holds the draft; the user can edit it directly or ask Holo to revise before the second-pass confirmation.
Hover over a message to reveal the action bar. Reactions post immediately and are visible to the whole channel/thread — reversible (click the reaction again to remove) but everyone saw it. Pinning posts a "pinned this message" system notice in the channel; unpin if it was a mistake but the notice itself stays. Editing your own message shows an "(edited)" badge to readers; deleting removes content but leaves a "This message was deleted" placeholder for ~30 seconds in most workspaces.
Slash commands run in the composer: /remind, /dm, /poll, /away, etc. They execute on Return without a preview — confirm before triggering anything mutating (/invite, /leave, /archive).
Slack is Electron, which means right-click on a message works but right-click in the composer text area is a normal text-edit context menu, not a Slack action menu — use hover-then-click for message actions.
Slack message URLs follow https://<workspace>.slack.com/archives/<CHANNEL_ID>/p<TIMESTAMP>, where the timestamp has the dot removed (e.g. p1770725748342899 is 1770725748.342899). To open a thread, the URL adds ?thread_ts=<PARENT_TS>. If a user pastes a Slack link, navigate via Cmd+K and the channel ID rather than relying on link-click behavior.
Slack's keyboard shortcuts: https://slack.com/help/articles/201374536. Confirmation-before-write pattern adapted from azmym/agent-skills (MIT): https://github.com/azmym/agent-skills/tree/main/skills/slack
