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.
Headless session gains a result-verdict option; PollTool can rejoin the tool list
Under the hood
Useful2Signal3
SDKnot in their notes
Headless sessions gain a result-verdict option, and a polling tool can be added back to SDK tools.
What's wrong with this entry?
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sdkResultVerdict
What
The factory that builds headless and SDK sessions takes a new sdkResultVerdict option defaulting to false, which one caller sets to true. Separately, the SDK tool list now passes through a step that appends PollTool when the permission context includes it and it is not already listed.
Evidence
sdkResultVerdict
Strings lifted out of the shipped bundle, so the claim above can be checked against them.