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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 v2.1.247 ·

Announce handling validates the frame and answers with a specific reason when switched off

Tool announcements from an attached machine are size-checked and answered with a precise refusal reason.

Under the hood In Development
JSON All of v2.1.247
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Remote ToolsArea: what it touches
In DevelopmentKind: in v2.1.247,
In DevelopmentSection of the release
What

Announcements from an attached machine are checked for nesting depth, a 1 MiB size cap, schema, host description and worker epoch, then judged against two switches. If the account flags have not arrived yet the answer asks for a retry, after waiting at most 5 seconds; if the flag is off the registry is cleared and the answer is remote_tools_disabled: flag_off; a closed session channel answers session_channel_off.

Details
  • The account flag is tengu_violin_wood, compiled in as off, so with no server value every announce is answered as disabled.
  • The flag wait is capped by flagWaitCapMs: 5000.
  • Successful announcements and withdrawals log tengu_remote_tools_announce with the outcome, counts of served, ignored, passthrough and plumbing tools, and whether another client instance was displaced.
Evidence

remote_tools_not_ready: feature flags not yet available; retry

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

Read from
Feature flag
tengu_violin_wood Off in both readings

The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.

This account: off · anonymous baseline: off · compiled default in v2.1.247: off

Read once, for one account on one subscription tier, against v2.1.247. It isn't a statement about your account. What a flag value here can and cannot tell you

What has happened since
Flag reading moved The flag server now returns off for tengu_violin_wood, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading moved The flag server now returns nothing at all, having stopped carrying it for tengu_violin_wood, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.

See this across every release →

See this entry in the whole of v2.1.247 →

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