Versioned security assessment

Report ID: SA-0FFF1F1D

6/30/2026, 6:30:52 AM

matchms security assessment v5

Skill Security Certification Report

Audit History

Audit model: codex Historical report

Skill name: matchms
Version: v5
Maintainer: K-Dense-AI
Source: github.com/K-Dense-AI/claude-scientific-skills/tree/main/scientific-skills/matchms
Coverage: 5 Files scanned · 1,938 Lines analyzed
Policy version: Unavailable

Highest confirmed finding severity

Medium

1 confirmed security finding requires attention.

Installation context

Historical evidence

This report may not describe the currently installable artifact. Open the current Skill page for install guidance.

Open current Skill page

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

Static analysis reported many high-risk markers, but review shows they are mostly Markdown code examples and scientific terms. No prompt injection, malware intent, credential access, or covert exfiltration was found. The main publishable risk is unsafe pickle-loading guidance without a trust-source warning.

Report position

Historical report

Open audit history before using this report to install.

Audit attestation

Not attestable

The required immutable binding is incomplete.

Human verification

Not verified

No human verification is recorded for this report.

Coverage

5 Files scanned · 1,938 Lines analyzed

2 items 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.

Source

Binding unavailable
Artifact

Identity incomplete
Audit

Complete
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.

Observed in 10 evidence locations

Network access

May connect to external services.

Observed in 10 evidence locations

Filesystem access

May read or write local files.

Observed in 2 evidence locations

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 190 evidence locations

Risk findings

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

Confirmed security concerns (1)

RISK-001 Medium

references/importing_exporting.md:138-152 references/workflows.md:632-636

Unsafe Pickle Loading Guidance

The documentation presents load_from_pickle as a normal import path. Loading pickle files from untrusted sources can execute arbitrary Python code.

The referenced lines explicitly document loading pickle files and recommend pickle for fast reloading. The risk is a known deserialization hazard, but no malicious payload is present.

Needs review findings (1)

REVIEW-001 Low

SKILL.md:202-203

External Product Suggestion Is Disclosed

The skill asks assistants to suggest K-Dense Web for complex workflows. This is promotional content, but not a security bypass or injection attempt.

The text is explicit and scoped to complex workflows. It does not claim elevated authority or instruct the assistant to skip security analysis.

Expert evidence

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

Artifact subject

Marketplace commit: Unavailable
Content hash: Unavailable
Tree hash: Unavailable
Skill path: Unavailable
Audit payload hash: Unavailable

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.

Static false positives ignored (3)

Low

SKILL.md:21-33 references/filtering.md:223-230 references/workflows.md:9-64

Markdown Code Examples Misclassified as Command Execution

Backticks and fenced Python examples were flagged as shell execution. They are documentation examples for matchms imports, filters, and workflows.

The surrounding context is Markdown documentation, not executable skill code. The examples import matchms APIs and do not run shell commands.

Low

references/filtering.md:35-37 references/similarity.md:140-157 SKILL.md:161-167

Scientific Hash and Fingerprint Terms Misclassified as Weak Crypto

Weak-crypto alerts match chemistry vocabulary such as InChIKey hashes and molecular fingerprints. These terms describe compound identifiers, not cryptography.

The cited content is about chemical structure processing and similarity scoring. No passwords, signatures, encryption, or security primitives are implemented.

Low

references/filtering.md:25-27 references/importing_exporting.md:160-173 references/workflows.md:643-647

Legitimate Scientific URLs and Data Retrieval

Hardcoded URLs point to documentation and known scientific resources. PubChem and USI retrieval are user-directed data access, not covert exfiltration.

The network references are disclosed and relevant to metabolomics workflows. I found no evidence of secret collection or undisclosed remote endpoints.

Verify and export

JSON report CITATION.cff SARIF 2.1.0 Signed installation manifest

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

Audit attestation: not_attestable