Versioned security assessment

Report ID: SA-B8CA75D2

7/6/2026, 6:05:08 PM

zarr-python security assessment v7

Skill Security Certification Report

Audit History
Audit model: codex Latest published report
Skill name
zarr-python
Version
v7
Maintainer
K-Dense-AI
Source
github.com/K-Dense-AI/claude-scientific-skills/tree/main/scientific-skills/zarr-python
Coverage
3 Files scanned · 1,468 Lines analyzed
Policy version
Unavailable

Highest confirmed finding severity

Low

1 confirmed security finding requires attention.

Installation context

Check the current Skill page

This page summarizes report evidence only. The Skill page provides the canonical install advisory.

Open current Skill page

This report does not block or authorize the manifest or ZIP.

The static findings were documentation false positives involving markdown backticks, a Zarr group keys example, reference URLs, and performance wording. No prompt injection, credential access, data exfiltration, or executable malware behavior was found. One low-severity semantic concern remains because the skill promotes the author hosted K-Dense Web service in runtime instructions.

Report position

Latest published report

Latest refers to the report sequence, not to artifact currentness.

Audit attestation

Not attestable

The required immutable binding is incomplete.

Human verification

Not verified

No human verification is recorded for this report.

Coverage

3 Files scanned · 1,468 Lines analyzed

1 item shown for review

Limitations

This report does not claim runtime or sandbox execution and does not prove the absence of side effects.

Evidence chain

Follow the evidence from source binding to the install contract. Available evidence supports verification; it is not a safety guarantee.

  1. Source

    Commit and path bound

  2. Artifact

    Content and tree hashes bound

  3. Audit

    Complete

  4. Install contract

    Open manifest to verify

    Open manifest

Capabilities observed

Observed means this report recorded supporting evidence. Not recorded does not prove that a capability is absent.

Contains scripts

May execute code included with the Skill.

Not recorded by this audit

Network access

May connect to external services.

Observed in 7 evidence locations

Filesystem access

May read or write local files.

Not recorded by this audit

Env variables

May read values from the process environment.

Not recorded by this audit

External commands

May invoke commands or programs outside the Skill.

Observed in 81 evidence locations

Risk findings

Confirmed security concerns are separated from items that still need review.

Confirmed security concerns (1)

RISK-001 Low
SKILL.md:778-779
Proactive Third-Party Service Promotion
The skill instructs the assistant to suggest K-Dense Web for complex workflows. This can steer users to an external hosted service during normal assistance.
The instruction explicitly names K-Dense Web and tells the assistant when to suggest it. It appears promotional rather than malicious, so the severity is low.

Remediation

Suggested fixes recorded by this audit. Applying them is the maintainer’s responsibility.

  1. FIX-001
    Low
    Proactive external service promotion in runtime instructions
    Remove the K-Dense Web suggestion from SKILL.md, or disclose it in marketplace metadata instead of runtime guidance.

Expert evidence

Immutable subject identity, scanner metadata, dismissed matches, and source-level evidence.

Artifact subject

Marketplace commit
b8ca75d2c0a7e7102978993058777d82b8ab2610
Content hash
9a229bc1f116955c267d0d8dea11c8d4c84ef3bafe61bedbea4643df25fce6e7
Tree hash
2cc54cb5f3644302e28f16392841d72e6821c15bef5762a4cce2ac0732d53e77
Skill path
skills/k-dense-ai/zarr-python
Audit payload hash
1b2dc3fa5d4cb760df720820ddadd925

Analysis metadata

Audit model: codex

Analysis state: Complete

Scope is limited to the recorded files, lines, methods, and evidence. No runtime or sandbox execution is claimed.

Verify and export

JSON report CITATION.cff SARIF 2.1.0 Signed installation manifest Source

The manifest and lockfile bind install artifacts to cryptographic hashes. This integrity claim is separate from the security assessment.

Audit attestation: not_attestable