ASYNC / Tasks, reentrancy, and cancellation

Broken invariant is observable during suspension

concurrency.actor-invariant-exposure@1.0.0

Recovery requiredExperimental1 condition

V-ASYNC-02 · Defect

Broken invariant is observable during suspension

Broken invariant is observable during suspension. It examines task ordering, suspension, cancellation, progress, and async obligations. The result remains unknown when the required evidence is incomplete.

Required evidence

The selected immutable build snapshot must provide complete task, suspension, cancellation, ordering, and progress facts for this condition.

Safe cases and boundaries

When required evidence, source membership, or analysis-world closure is incomplete, the affected result remains unknown. Missing data alone is never a finding.

Current qualification

The source producer still requires recovery and qualification in this snapshot. The target description is not evidence of an active diagnostic.

Implementation owner: T031; exact scope remains traceable in the internal source manifest.
First-result strategy: Research prototype — a delivery strategy, not maturity.
Result kind: Defect — not a severity level.
Registry profile: native-experimental.swift-6.3.3
Autofix and CI: No autocorrect, default enablement, or blocking CI is claimed.
Provenance key: VISION

Status and provenance

This page combines the reviewed rule identity with an English public description for catalog snapshot 4558458d. Changing status requires a new reviewed snapshot; page count is not a maturity claim.

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