Follow Discord

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

← All of v2.1.233 Home All releases ←olderv2.1.232 v2.1.234newer→

Claude Code v2.1.233 14 Aug 2026

Programmatic message submission carries new per-message flags

Under the hood

Useful3 Signal4

SDK Notable not in their notes

SDK-submitted messages can carry four new per-message flags for attachments, hooks, polling and skill permissions.

skipAttachmentsskipSubmissionHookspollEventDeliveryskipSkillPermissionReset

What

Messages submitted through the SDK path now forward four additional per-message options alongside the existing origin and query settings: skipAttachments, skipSubmissionHooks, pollEventDelivery and skipSkillPermissionReset. Marking a turn as coming from a verified Slack human now requires the message to have a uuid.

Evidence

skipSubmissionHooks

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.233 →