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dc31c28102* fix(core): make "error" the canonical terminal status on a mid-session crash (#1490) On a real mid-session transport crash many SDK transports fire BOTH `onclose` and `onerror` in a transport-dependent order. The `onclose` guard (`if status !== "disconnected"`) let a trailing `onclose` downgrade a crash's `"error"` status back to `"disconnected"`, so the persistent terminal status differed by ordering: - onerror-then-onclose → "disconnected" - onclose-then-onerror → "error" `onclose` now treats `"error"` as terminal (only `"connected"`/ `"connecting"` → `"disconnected"`), so `"error"` is the canonical resting status in both orderings. It still emits the `disconnect` event exactly once so session-teardown consumers fire identically either way. Because the state managers gated list/message/subscription/task teardown on `getStatus() === "disconnected"`, holding the status at `"error"` would have left them stale in the onerror-first ordering — swapping one ordering-dependence for another. Introduce `isTerminalStatus()` (disconnected || error) and key every teardown guard off it so they clear identically regardless of crash ordering. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix(core): single disconnect event when explicitly disconnecting from "error" (#1490 re-review) Addresses the non-blocking observation from the PR review: explicitly calling disconnect() from a held-"error" status could fire the `disconnect` event twice. close() can trigger the transport's onclose synchronously; onclose (holding status at "error") fired `disconnect`, then disconnect()'s own guard saw status still != "disconnected" and fired it again — a timing-dependence on whether the SDK closes sync. Add a `disconnecting` ownership flag: onclose defers its status set + `disconnect` event to disconnect() while it is set, so the explicit-disconnect path emits exactly one `disconnect` regardless of sync/async close. Crash-path onclose (flag unset) is unchanged. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * test(core): deterministically pin the sync-close disconnect double-fire (#1490 re-review) The real-stdio test asserts the single-disconnect invariant but may not exercise the sync-close branch (the one that double-fired) if the SDK stdio transport closes asynchronously. Add a test that overrides the SDK client's close() to invoke the transport's onclose synchronously, forcing the exact timing the `disconnecting` flag guards. Verified it asserts 2 (fails) without the flag and 1 (passes) with it. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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