@metamask/snaps-simulation
A simulation framework for MetaMask Snaps, enabling headless testing of Snaps in a controlled environment
11
Versions
ISC
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
MetaMaskSnapsEthereum
Accepted risks
Findings the reviewer chose to accept rather than block on.
| Source | Rule | Reason | Accepted by | When |
|---|---|---|---|---|
| provenance | publisher-changed | AI (provenance): CI/CD migration (manual→GitHub Actions attested), improvement not compromise. | ai | |
| maintainer-change | maintainer-added | AI (maintainer-change): Known MetaMask org maintainers added alongside CI/CD provenance upgrade. | ai | |
| publish-pattern | dormant-publish | AI (publish-pattern): MetaMask org package with consistent publish history; gap reflects normal major-version development cycle, not account takeover. | ai | |
| publish-pattern | new-deps-added | AI (publish-pattern): New dep is @metamask/chain-agnostic-permission, a first-party MetaMask package; benign for this org. | ai | |
| phantom-deps | phantom-dep:@metamask/snaps-execution-environments | AI (phantom-deps): Declared as a runtime dependency in package.json; phantom-dep heuristic false positive for this package. | ai |
Versions (showing 11 of 11)
| Version | Deps | Published |
|---|---|---|
| 4.3.0 | 21 / 17 | |
| 4.2.0 | 21 / 17 | |
| 4.1.4 | 21 / 17 | |
| 4.1.3 | 21 / 17 | |
| 4.1.2 | 21 / 17 | |
| 4.1.1 | 21 / 17 | |
| 4.1.0 | 22 / 17 | |
| 4.0.0 | 22 / 17 | |
| 3.8.0 | 21 / 17 | |
| 3.7.0 | 20 / 17 | |
| 3.6.0 | 20 / 17 |
v4.3.0
2 findings
HIGH
Publisher changed: metamaskbot → GitHub Actions (on 2026-07-07)
provenance
This version was published by a different npm account than previous versions on 2026-07-07. 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.