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feat(codemode): support Promise.any and new Promise construction (#36339)

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Aiden Cline 2026-07-10 20:46:13 -05:00 • committed by GitHub
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@ -64,10 +64,13 @@ path lookup, namespace browsing, deterministic ranking, and pagination.
### Tool execution
Every sandbox promise starts eagerly on a run-once fiber owned by the whole CodeMode execution, including tool calls,
async functions, chained `.then`/`.catch`/`.finally` reactions, `Promise.all`, `Promise.allSettled`, `Promise.race`,
`Promise.resolve`, and `Promise.reject`. Nested functions therefore cannot end the lifetime of work they started.
async functions, chained `.then`/`.catch`/`.finally` reactions, `new Promise(executor)` constructions, and the
`Promise.all`/`allSettled`/`race`/`any`/`resolve`/`reject` statics. Nested functions therefore cannot end the lifetime
of work they started.
Independent aggregate batches overlap, and rejection is observed at the eventual `await` or chained rejection handler.
`Promise.race` uses native non-cancelling settlement semantics: its first result wins while losers continue running.
`Promise.race` and `Promise.any` use native non-cancelling settlement semantics: the deciding member wins while losers
continue running, and an all-rejected `Promise.any` rejects with an `AggregateError`. `new Promise(...)` hands the
executor first-class resolve/reject callables that may escape and settle the promise later, exactly once.
Reaction ordering matches what V8 makes observable - handlers and await continuations are deferred and run in attach
order, and a combinator settles one reaction turn after its deciding member - without promising exact microtask-count
parity beyond that. At normal completion CodeMode interrupts everything still running - race losers,