Three independent root causes in the TS 7 executor slice (#8484), each a
declaration that had drifted behind the code using it. All type-only —
no behavior change, verified by running the new tests against the parent
commit's sources (7/7 pass there too).
mimocode — AccountState was missing `proxy`, but syncAccountsFromCredentials()
writes it on every account and getProxyDispatcher() reads it. The #3837/#5521
contract ("always present, null when unconfigured") lived only in a comment.
Declared as AccountProxyConfig["proxy"] so the two stay in lockstep. (4)
opencode — the tools-truncation block narrowed `modifiedBody` with
`typeof === "object"` but, unlike the client_metadata block directly above it,
omitted `!Array.isArray()` and the Record cast, so `.tools` was unreachable on
`object`. Adopted the neighbouring block's idiom. Behavior is identical: the
old code reached `.tools` on arrays too and relied on Array.isArray(undefined)
short-circuiting. (4)
zed-hosted — enqueueSseObject/finish/processLine were annotated
ReadableStreamDefaultController but are driven from a TransformStream, whose
controller has no close(). All three only ever enqueue, so they are now typed
by that single capability (SseEnqueueTarget). (3)
310 -> 299 diagnostics, zero new, on a line-number-agnostic diff of the full
tsc error set.
Tests: new tests/unit/ts7-executor-shared-shapes.test.ts pins the tools
truncation (previously uncovered) and the proxy-always-present contract. The
zed-hosted transform is already covered end-to-end by
zed-hosted-think-close-marker.test.ts. 300/300 across the 26 affected files.
Co-authored-by: backryun <busan011@ormbiz.co.kr>
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