Pin Slack message
Input
ts requiredThe message's ts.
channel requiredChannel name/#name or id (C…).
workspaceDomain optionalWorkspace host, e.g. acme.slack.com. Defaults to the active workspace.
Output
ok requiredts requiredchannel requiredResolved channel id.
account_used requiredWorkspace host the action ran against, read back from the session.
already_present requiredTrue when the message was already pinned before this run, so nothing changed.
verified_on_page requiredTrue when a re-read of the channel's pins confirms the message is pinned.
channel_name optionalResolved channel name, when Slack reports one.
List Slack invoices
List Slack billing statements from the workspace's admin billing history. Returns workspace, total and invoices (date, statement, billId, amount, status, description, pdfUrl) — metadata only. Feed a row's pdfUrl (or billId) to slack.com/download_invoice to fetch that statement's PDF. Requires a workspace billing admin; defaults to the primary workspace, or pass workspaceDomain (e.g. acme.slack.com).
Slack login (Google SSO)
Log into a Slack workspace using Sign in with Google, then open that workspace. Handles Google's account chooser and consent along the way. Pass the workspace subdomain (e.g. "myteam" for myteam.slack.com) and optionally which Google account to use; your Google account must already have access to the workspace.
Set Slack channel topic
Set a channel's topic (the short line shown in the header) by name or id. Topics are limited to 250 characters, and a longer one is refused up front rather than part-way through. Pass an empty string to clear the topic. Returns the applied topic. Requires login.