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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.

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Claude Code v2.1.247

Workflow agents are cut off when they run past their token ceiling

You'll notice
Useful3 Signal3
Workflows

Workflow agents that blow past their token ceiling are now stopped, with a log line telling you how to raise it.

What

In the Workflow v2 tool surface, an agent that spends more tokens than its scope allows is now stopped rather than left running. The log line tells you how to raise the ceiling.

Details
  • Token spend is checked as the agent reports usage; on breach an over-budget fact is published carrying the label, the agent, the amount spent and the ceiling.
  • The agent's row is retracted at the same time.
  • Previously the only similar state was starved, which covers agents waiting on something rather than agents overspending.
  • No flag guards this; it applies wherever the Workflow v2 tools are in use.
Evidence

; put {topic:'budget', units:N} to raise the ceiling

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.247 →