Push events into a running session with channels changedchannels
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Upstream edited this page at 26 Sep 2026 00:15 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 26 Sep 2026 00:37 UTC.
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344344During the preview, `--channels` only accepts plugins from an Anthropic-maintained allowlist, or from your organization's allowlist if an admin has set [`allowedChannelPlugins`](#restrict-which-channel-plugins-can-run). The channel plugins in [claude-plugins-official](https://github.com/anthropics/claude-plugins-official/tree/main/external_plugins) are the default approved set. If you pass something that isn't on the effective allowlist, Claude Code starts normally but the channel doesn't register, and the startup notice tells you why.
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346To test a channel you're building, use `--dangerously-load-development-channels`. See [Test during the research preview](/docs/en/channels-reference#test-during-the-research-preview) for information about testing custom channels that you build.
346To test a channel you're building, pass it to `--dangerously-load-development-channels` in the `plugin:<name>@<marketplace>` or `server:<name>` form. See [Test during the research preview](/docs/en/channels-reference#test-during-the-research-preview) for information about testing custom channels that you build.
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348348Report issues or feedback on the [Claude Code GitHub repository](https://github.com/anthropics/claude-code/issues).
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