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@metamask/superstruct

7
Versions
License
No
Install Scripts
Verified
Provenance

Supply chain provenance

Status for the latest visible version.

SLSA provenance attestation npm registry signatures gitHead linked

Maintainers

kumavisfrederikboldingmetamaskbotgudahttmrtenmcmirenaugtur

Keywords

apiarrayassertcastcheckcheckercollectiondataerrorexpresshapiinterfaceinvalidjoijsonlistmodelobjectormscalarschemastructthrowtypetypesvalidvalidatevalidationvalidator

Accepted risks

Findings the reviewer chose to accept rather than block on.

SourceRuleReasonAccepted byWhen
provenance publisher-changed AI (provenance): Transition from metamaskbot to GitHub Actions CI/CD is an improvement, not a risk. ai
publish-pattern dormant-publish AI (publish-pattern): MetaMask org package; dormancy followed by CI/CD-attested publish is normal maintenance. ai

Versions (showing 7 of 7)

Version Deps Published
3.4.1 0 / 32
3.4.0 0 / 32
3.3.0 0 / 32
3.2.1 0 / 32
3.2.0 0 / 32
3.1.0 0 / 32
3.0.0 0 / 32

v3.4.1

1 finding
INFO Has SLSA provenance attestation provenance

Published via CI/CD with Sigstore attestation (predicate: https://slsa.dev/provenance/v1). This is the strongest supply chain integrity signal.

v3.4.0

1 finding
INFO Has SLSA provenance attestation provenance

Published via CI/CD with Sigstore attestation (predicate: https://slsa.dev/provenance/v1). This is the strongest supply chain integrity signal.

v3.3.0

2 findings
HIGH Publisher changed: metamaskbot → GitHub Actions (on 2026-07-02) provenance

This version was published by a different npm account than previous versions on 2026-07-02. This could indicate a legitimate maintainer transition or an account compromise.

INFO Has SLSA provenance attestation provenance

Published via CI/CD with Sigstore attestation (predicate: https://slsa.dev/provenance/v1). This is the strongest supply chain integrity signal.

v3.2.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v3.1.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v3.0.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.