Versioned security assessment

Report ID: SA-26421118

7/9/2026, 3:01:14 PM

ena-database security assessment v9

Skill Security Certification Report

Audit History
Audit model: codex Historical report
Skill name
ena-database
Version
v9
Maintainer
K-Dense-AI
Source
github.com/K-Dense-AI/claude-scientific-skills/tree/main/scientific-skills/ena-database
Coverage
2 Files scanned · 695 Lines analyzed
Policy version
Unavailable

Highest confirmed finding severity

Low

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.

Most static findings are false positives from Markdown examples that document official ENA and EBI public APIs. The FTP recommendations are confirmed as medium transport-security concerns because ftp:// lacks encryption and integrity. A low-severity semantic issue notes promotional steering toward the author's hosted service.

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

2 Files scanned · 695 Lines analyzed

3 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 48 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 10 evidence locations

Capability review items (2)
Medium
references/api_reference.md:177
FTP protocol
# Download from ftp://ftp.sra.ebi.ac.uk/...
The skill recommends ftp:// URLs for bulk public data downloads. FTP lacks transport encryption and integrity, so downloads could be observed or tampered with unless safer transports or checksums are used.
Medium
references/api_reference.md:459
FTP protocol
- Base FTP: `ftp://ftp.sra.ebi.ac.uk/vol1/fastq/`
The skill recommends ftp:// URLs for bulk public data downloads. FTP lacks transport encryption and integrity, so downloads could be observed or tampered with unless safer transports or checksums are used.

Risk findings

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

Confirmed security concerns (1)

RISK-001 Low
SKILL.md:203-204
External Service Promotion In Skill Instructions
SKILL.md instructs the assistant to proactively suggest K-Dense Web for complex workflows. This can steer users toward an external hosted service beyond the ENA task, so it should be disclosed or removed from agent instructions.
The cited lines directly tell the assistant to recommend the author's hosted platform. This is not malware, but it is clear promotional steering in executable skill instructions.

Remediation

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

  1. FIX-001
    Medium
    Plain FTP download recommendations
    Prefer HTTPS or Aspera when available, and require checksum verification for all downloaded sequence files.
  2. FIX-002
    Low
    External hosted-service promotion in agent instructions
    Remove proactive promotion from SKILL.md or present it as clearly disclosed marketplace documentation that requires user consent.

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.

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