Channels reference changedchannels-reference
Nearest release: v2.1.285, published 2 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Upstream edited this page at 29 Sep 2026 20:26 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 29 Sep 2026 20:37 UTC.
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153
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits13to this page, all time
The whole hunk
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from line 153
153153 The payload arrives in Claude's context as a `<channel>` tag:
154154
155155 ```text theme={null}
156 <channel source="webhook" path="/" method="POST">build failed on main: https://ci.example.com/run/1234</channel>
156 <channel source="webhook" path="/" method="POST">
157 build failed on main: https://ci.example.com/run/1234
158 </channel>
157159 ```
158160
159161 Your terminal renders the event as a one-line summary, `← webhook: build failed on main: https://ci.example.com/run/1234`, rather than the raw tag. You'll then see Claude start responding: reading files, running commands, or whatever the message calls for. This is a one-way channel, so Claude acts in your session but doesn't send anything back through the webhook. To add replies, see [Expose a reply tool](#expose-a-reply-tool).
No line in this hunk matches that.