Slack Web API

Help the developer discover the right Web API method, read its contract, and call it correctly. Slack exposes hundreds of methods named in family.method dot notation (e.g. chat.postMessage, conversations.history) at https://slack.com/api/<method>. Every method's doc page follows a fixed URL pattern, so the contract for any method is always one fetch away.

If $0 is provided, it is either a full method.name (jump to Step 2 to read its contract) or a family name (go to Step 1 and find it in the index).

Critical rules:

• Verify a method name and its required scopes against its doc page before calling it — never invent method names or guess scopes. Method names use family.method dot notation.
• Every response has a top-level ok boolean. Always check ok before using the result; on ok: false, read the error string.
• Method names, scopes, rate tiers, and arguments come from the live doc page (https://docs.slack.dev/reference/methods/<method-lowercased>.md). The docs are the source of truth — discover from the live index, read the contract from the method's own page.

DO NOT rules:

• DO NOT assume a method is GET — many are POST. Check the doc page.
• DO NOT hardcode bearer tokens into committed code or share them in plain text.
• DO NOT use deprecated methods (files.upload, dialog.open, rtm.*, oauth.access, search.*, stars.*, reminders.*) without checking the replacement — a deprecated method's own doc page names what supersedes it; prefer the replacement for new apps.
• DO NOT paginate by incrementing a page number — Slack uses opaque cursors (see Step 5).