chore: release 27.10.0

CHANGELOG.md

@@ -8,6 +8,10 @@ Semver applies from 1.0.0. A breaking change to a documented API needs a major 
 
 ## [Unreleased]
 
+Nothing yet.
+
+## 27.10.0 - 2026-10-12
+
 ### Added
 
 Tier 2 — http. Tier 4 — ai.
@@ -57,6 +61,10 @@ Tier 2 — http. Tier 4 — ai.
 - **Two streamed tool calls that share one `index` are two calls.** The chat-completions assembler merged fragments by `tool_calls[].index` alone. An endpoint that numbers every call of a turn `0` (or sends no index) and tells them apart by `id` had its calls concatenated into one argument string — `{…}{…}` — and one name (`readDocreadDoc`), which then failed to parse. A fragment whose `id` differs from the open call's now starts a new call; an id repeated on every fragment, or sent only on the first, is still one call.
 - **A streamed call is read when the stream ends, not when the finish reason arrives.** Nothing in the format orders the finish reason against the last argument fragment, and an endpoint may send the reason twice (OpenRouter repeats it on the usage chunk). `ChatCompletionStream.end()` drains the calls at `[DONE]` or when the socket closes; tool-call chunks are yielded then.
 
+### Commits
+
+- fix(ai): unattended agents: a cut-off answer is never a success, streamed tool calls parse or fail typed, failures carry their bill; continue, sampling, in-process tools (#767)
+
 ## 27.9.0 - 2026-10-11
 
 ### Added