Source Intelligence

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 v2.1.246

Opus 4.8 hands off to a fresh session much earlier

You'll notice
Useful3 Signal4
Session Handoff

On Opus 4.8, sessions hand work off to a fresh session far sooner; Sonnet 5 is unchanged.

What

The two thresholds that decide when a session hands off its work fell from 25 and 35 to 10 and 15 for claude-opus-4-8. Sonnet 5 is unchanged at 25 and 35. These are the built-in defaults for the handoff decision and can be overridden by server-side config.

Evidence

"claude-opus-4-8": { t1: 10, t2: 15 }

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 v2.1.246 →