open-standards/sandbox/sandbox-rs/crates
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sandbox: a manifest is pinned only when its image AND every feature are digest-addressed
`EnvironmentManifest::is_pinned()` checked the base image's digest alone,
while its doc promised "fully pinned" and "same address ⇒ same bytes". Its
own test asserted it true for a manifest whose features were `rust:1` and
`node:1`. Those are tags, which resolve to whatever was last pushed under
them, so two hosts can run different toolchains under one address. The
spec repeated the overclaim: it called such a manifest pinned, and so fit
for a cross-host "same environment" claim.

- `Feature::is_pinned()`: the reference carries an `@sha256:` digest.
- `EnvironmentManifest::is_pinned()`: the image and every feature are
  digest-addressed. `image_pinned()` is the old image-only check.
- Its docs, the spec (spec/environment-manifest.md, SPEC §14): pinned means
  the whole toolchain. Mounted content is data and never part of the
  address, so a pinned manifest says nothing about what its mounts hold.
- C7 conformance checks the image (as it always said it did), that a
  feature by tag leaves the manifest unpinned, and that digest features pin
  it.

Pinned-ness is not in the manifest core, so no content address or vector
changes.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-15 20:50:37 -04:00
..
sandbox-attest sandbox: a manifest is pinned only when its image AND every feature are digest-addressed 2026-10-15 20:50:37 -04:00
sandbox-build aac, sandbox: five citations named sections their SPECs do not have 2026-10-13 03:06:10 -04:00
sandbox-capability sandbox-capability: injected egress credentials — the secret never enters the unit 2026-07-20 20:47:37 -04:00
sandbox-cli sandbox-cli: demo and confidential seal illustrative identities, not named devices 2026-10-10 17:52:56 -04:00
sandbox-conformance sandbox: a manifest is pinned only when its image AND every feature are digest-addressed 2026-10-15 20:50:37 -04:00
sandbox-exec-microvm sandbox-exec-microvm: the liveness tick advances the fake counters itself 2026-10-11 10:52:05 -04:00
sandbox-exec-wasm aac, sandbox: five citations named sections their SPECs do not have 2026-10-13 03:06:10 -04:00
sandbox-jcp sandbox-jcp: repair the jcp_schema::Grant literal — latent cross-workspace break 2026-07-20 20:47:37 -04:00
sandbox-mcp Add aac, map, sandbox standards; catalog the standards family 2026-06-07 17:04:36 -04:00
sandbox-meter sandbox-meter: a member waiting on the kernel in the middle of its work is not settled 2026-10-13 01:03:29 -04:00
sandbox-proof sandbox-proof: name the hook type in the panicking-hook test 2026-10-10 18:19:11 -04:00
sandbox-proof-wasm sandbox: give the S7 locality claim something that can falsify it (SPEC §7.7) 2026-08-26 11:52:33 -04:00
sandbox-runtime sandbox: drop an assertion of mine that could not fail 2026-10-14 10:05:40 -04:00
sandbox-schema Add aac, map, sandbox standards; catalog the standards family 2026-06-07 17:04:36 -04:00
sandbox-tee sandbox-tee: attested_efficiency attests what this host's meter read 2026-10-10 17:51:59 -04:00