Versioned security assessment

Report ID: SA-C2D34FB0

7/7/2026, 8:11:51 PM

extract-design-system security assessment v5

Skill Security Certification Report

Audit History
Audit model: codex Historical report
Skill name
extract-design-system
Version
v5
Maintainer
arvindrk
Source
github.com/arvindrk/extract-design-system/tree/main/skills/extract-design-system/
Coverage
3 Files scanned · 101 Lines analyzed
Policy version
Unavailable

Confirmed finding summary

No confirmed security findings

The completed audit recorded no confirmed security findings. This is not proof that the Skill has no side effects.

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.

The real security concern is that the skill instructs agents to run external npx commands, including commands with a user-supplied URL argument. The remaining static hits are markdown fences, workflow prose, or generated output path references. I found no prompt-injection attempt or malicious intent in SKILL.md.

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

3 Files scanned · 101 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.

Not recorded by this audit

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 11 evidence locations

Capability review items (3)
Medium
SKILL.md:28-31
Ruby/shell backtick execution
```bash
Lines 28-31 instruct the agent to run npx playwright install chromium and npx extract-design-system with a user-provided URL. This is real external command execution with package and URL input risk.
Medium
SKILL.md:41-43
Ruby/shell backtick execution
```bash
Lines 41-43 instruct the agent to run npx extract-design-system with a user-provided URL and the --extract-only flag. This is real external command execution with user-controlled input.
Medium
SKILL.md:47-49
Ruby/shell backtick execution
```bash
Lines 47-49 instruct the agent to run npx extract-design-system init. Even without user input, this executes an external npm-distributed tool in the local project context.

Risk findings

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

No confirmed security findings were recorded for this completed audit.

Remediation

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

  1. FIX-001
    Medium
    Unpinned npx package execution
    Pin the extract-design-system package version and document that npx may download and run package code.
  2. FIX-002
    Medium
    User-provided URL passed to shell command
    Validate the URL, quote the argument, and require explicit confirmation before running commands that use it.
  3. FIX-003
    Low
    Browser dependency installation command
    Ask before installing Chromium with Playwright and explain the local disk and network effects.

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