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htl

npm Repository Homepage
2
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

mbostock

Accepted risks

Findings the reviewer chose to accept rather than block on.

SourceRuleReasonAccepted byWhen
provenance publisher-changed AI (provenance): Transition from mbostock to GitHub Actions CI/CD publishing for observablehq/htl; SLSA attestation confirms legitimate org-controlled pipeline. ai
publish-pattern dormant-publish AI (publish-pattern): Dormancy followed by v1.0.0 major release with CI/CD migration; consistent with intentional project revival, not takeover. ai

Versions (showing 2 of 2)

Version Deps Published
1.0.0 0 / 7
0.3.1 0 / 8

v1.0.0

2 findings
HIGH Publisher changed: mbostock → GitHub Actions (on 2026-05-20) provenance

This version was published by a different npm account than previous versions on 2026-05-20. 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.

v0.3.1

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.