Versioned security assessment

Report ID: SA-90758735

4/2/2026, 7:19:53 AM

skillscan security assessment v1

Skill Security Certification Report

Audit History
Audit model: claude Historical report
Skill name
skillscan
Version
v1
Maintainer
tokauth
Source
github.com/tokauth/SkillScan/tree/main/
Coverage
4 Files scanned · 1,155 Lines analyzed
Policy version
Unavailable

Highest confirmed finding severity

Low

2 confirmed security findings require 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 analyzer flagged 93 patterns but most are false positives. Network calls go to documented API (skillscan.tokauth.com) for cloud analysis - this is core functionality, not exfiltration. Crypto uses SHA256 (secure), temp files use standard tempfile module, and zip-slip protection is implemented. Risk limited to uploading user files to external server for analysis, which is disclosed functionality.

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

4 Files scanned · 1,155 Lines analyzed

4 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.

  1. Source

    Binding unavailable

  2. Artifact

    Identity incomplete

  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 6 evidence locations

Filesystem access

May read or write local files.

Observed in 4 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.

Not recorded by this audit

Capability review items (2)
Medium
scripts/scanner.py:420-466
Cloud API File Upload
Skill uploads entire skill directories to external API (skillscan.tokauth.com) for cloud analysis. Users should be aware their code is transmitted to third-party servers.
Low
scripts/scanner.py:24-27
Hardcoded API Endpoints
API URLs are hardcoded in source code. While currently pointing to legitimate endpoints, this pattern could be exploited if the domain is compromised.

Risk findings

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

Confirmed security concerns (2)

RISK-001 Low
scripts/scanner.py:28-29scripts/scanner.py:113-115
Environment Variable Access
Reads SKILL_SCANNER_UPDATE_URL environment variable and Windows APPDATA. This is documented and expected behavior for configuration.
RISK-002 Low
scripts/scanner.py:151-214
Client Fingerprinting
Collects OS, platform, MAC address, and generates client ID for API requests. Used for analytics and rate limiting but users should be aware.

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: claude

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

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

Audit attestation: not_attestable