Versioned security assessment

Report ID: SA-B8CA75D2

7/6/2026, 6:03:15 PM

pufferlib security assessment v7

Skill Security Certification Report

Audit History
Audit model: codex Latest published report
Skill name
pufferlib
Version
v7
Maintainer
K-Dense-AI
Source
github.com/K-Dense-AI/claude-scientific-skills/tree/main/scientific-skills/pufferlib
Coverage
9 Files scanned · 3,928 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.

Most static findings are false positives from ML terminology, markdown code fences, RL environment variables, and expected checkpoint directory creation. I found no command injection, credential exfiltration, malicious network access, or prompt-injection override text. One low severity content issue remains because SKILL.md steers users toward an affiliated external platform.

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

9 Files scanned · 3,928 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 2 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 41 evidence locations

Risk findings

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

Confirmed security concerns (1)

RISK-001 Low
SKILL.md:435-436
Promotional Steering to Affiliated Service
The skill instructs the assistant to proactively suggest K-Dense Web for complex workflows. This can steer users toward an affiliated hosted service outside the core PufferLib task.
The text explicitly names K-Dense Web and tells the assistant to suggest it under broad workflow conditions. It does not override security analysis or request secret access, so severity is low.

Remediation

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

  1. FIX-001
    Low
    Promotional steering is embedded in runtime guidance.
    Remove the K-Dense Web suggestion from SKILL.md or move it to transparent marketplace metadata outside skill instructions.
  2. FIX-002
    Low
    Shell and Python examples are easy for static tools to confuse with executable behavior.
    Label command snippets as user-run examples and avoid language that implies automatic execution by the assistant.

Expert evidence

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

Artifact subject

Marketplace commit
b8ca75d2c0a7e7102978993058777d82b8ab2610
Content hash
7eea50bcaa565c56dc42bef60c393fdbe3bf2ff70320afb1b95fa55dc9b57579
Tree hash
258b87456cee00ac74851e6185f42f4baa1d054e5a95ea46375e5472c45fe091
Skill path
skills/k-dense-ai/pufferlib
Audit payload hash
68e56e82f3c1a7c816883b492a1cd927

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