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feat(tools): require cancellation signal on every invocation

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This commit is contained in:
Tianyi Cui
2026-07-19 23:38:54 +08:00
parent a99750f341
commit e8b95c8754
77 changed files with 1129 additions and 446 deletions
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9
packages/workflow/tool-workflow/src/index.ts
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@@ -174,17 +174,14 @@ export function apply(ctx: Context, config: Config): void {
meta: args.meta,
...args.args !== undefined ? { args: args.args } : {},
parent,
...exec.signal ? { signal: exec.signal } : {},
signal: exec.signal,
})
// Bridge the tool's abort signal to the run: if the parent step is aborted while the
// script is in flight, cancel the whole run. The signal also enters the engine directly, but
// this local bridge preserves the tool contract even if an implementation ignores it.
const onAbort = (): void => { run.cancel('parent step aborted') }
exec.signal?.addEventListener('abort', onAbort, { once: true })
// `addEventListener` does NOT fire for a signal already aborted before
// this line — cancel explicitly in that case.
if (exec.signal?.aborted) run.cancel('parent step aborted')
exec.signal.addEventListener('abort', onAbort, { once: true })
try {
const result = await run.result
@@ -196,7 +193,7 @@ export function apply(ctx: Context, config: Config): void {
}
return [{ type: 'text', text: renderResult(run, result, maxResultChars) }]
} finally {
exec.signal?.removeEventListener('abort', onAbort)
exec.signal.removeEventListener('abort', onAbort)
// Always reach run quiescence — never leak a live script or children.
await run.dispose()
}