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Durable record: bound to the owning session id and validated at the fold (orphan-SID shape, temp path inside the host temp root) — a fork's copied parent record no longer provisions the child, and a tampered record fails loud. Private temp dir: random unguessable name persisted in the record, created exclusively (pre-existing entries and reparse points fail EEXIST). Persistence: a fresh provision kicks an immediate flush (no write-behind debounce), narrowing the crash window to the flush latency — documented as the one self-healing gap. Runner-failure rules: exit-gated on 127 so a confined command that prints the signature on a non-127 exit is never misclassified. Spawn: AssignProcessToJobObject failure terminates the suspended child (no hanging orphans). SandboxExecutionPolicy.sessionId is the branded SessionId. Boundary docs: qualifying clause on the absolutist sentences, NULL-DACL Known Limitation, 'full' scoped to the supported NTFS surface, CLM gate comment.
sandbox/ — process-sandbox capability family
English | 中文
This family applies per-session confinement policy to process execution. It covers same-world subprocesses; isolated environments replace complete capability implementations instead of registering here.
| Package | Role | ctx key |
|---|---|---|
sandbox/ |
Defines the process-sandbox service and shared escalation vocabulary | ctx.sandbox |
sandbox-local/ |
Provides local platform confinement backends | registers on ctx.sandbox |
sandbox-policy/ |
Resolves durable per-session sandbox policy | ctx.sandboxPolicy |
See the sandbox decision for the capability boundary and the filesystem integration decision for cross-family policy use.