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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.248 ·

Served tools report their state, and a reason when they are not served

Debug logs now name why Claude Code's tools were not handed to the host.

Under the hood New Features
JSON All of v2.1.248
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Remote ControlArea: what it touches
New FeaturesKind: in v2.1.248,
New FeaturesSection of the release
What

Claude Code can now hand its tools to the host over the session channel, announcing on attach, on reconnect and when a worker starts. When that does not happen a debug line names the reason: not_bound, not_served, not_announced or serving_off.

Details
  • The line is [servedTools] not served over the session channel: followed by one of those four reasons.
  • Notices sent along with the announcement are truncated at a sentence or dash boundary first.
Evidence

[servedTools] not served over the session channel:

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

See this entry in the whole of v2.1.248 →

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