Versioned security assessment

Report ID: SA-A877C954

6/30/2026, 9:42:17 PM

api-design-principles security assessment v5

Skill Security Certification Report

Audit History
Audit model: codex Historical report
Skill name
api-design-principles
Version
v5
Maintainer
wshobson
Source
github.com/wshobson/agents/tree/main/plugins/backend-development/skills/api-design-principles
Coverage
5 Files scanned · 1,801 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.

Static analysis reported many high-risk weak-crypto and shell-backtick patterns, but review found those to be false positives caused by API terminology and Markdown code fences. No prompt injection, malware intent, secret exfiltration, or command execution was found. One medium issue remains: the FastAPI template calls itself production-ready while using wildcard host and CORS defaults that should be restricted before deployment.

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 · 1,801 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 5 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.

Not recorded by this audit

Capability review items (2)
Medium
assets/rest-api-template.py:25assets/rest-api-template.py:31
Wildcard Host and CORS Defaults in API Template
The FastAPI template is described as production-ready but uses wildcard host validation and wildcard CORS origins. If copied into production without changes, this can permit unexpected host headers and cross-origin browser access. The comments reduce the risk because they tell users to configure specific production values.
The wildcard values are directly present in executable FastAPI template code. Risk is moderated because the comments mark both settings as production TODOs and credentialed CORS is disabled.
Low
assets/rest-api-template.py:182references/rest-best-practices.md:132-135references/rest-best-practices.md:324
Example Network Literals Are Non-Exfiltrating
The hardcoded URL and IP findings are API documentation examples and a local FastAPI run command. No evidence found of outbound requests, credential transfer, tracking endpoints, or data exfiltration.
The locations show a server bind address and illustrative API URLs, not outbound network calls. The remaining risk is configuration quality, covered by the medium finding.

Risk findings

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

Confirmed security concerns (1)

RISK-001 Low
SKILL.md:54-57references/graphql-schema-design.md:6-35references/rest-best-practices.md:6-16
Markdown Backticks Mistaken for Shell Execution
The external command findings are Markdown code fences and inline formatting around REST, GraphQL, and Python examples. No evidence found of Ruby backtick execution, subprocess calls, shell command construction, or command injection behavior.
The flagged backticks delimit Markdown examples and are not parsed as Ruby or shell by the skill. A targeted search found no subprocess, os.system, exec, or eval usage.

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 (1)
Low
SKILL.md:2-3assets/api-design-checklist.md:1-5assets/rest-api-template.py:3references/graphql-schema-design.md:1references/rest-best-practices.md:30
Weak Cryptography Static Findings Are False Positives
The reported weak-cryptography hits occur in API design prose, GraphQL examples, HTTP status guidance, or placeholder password hashing references. No evidence found of MD5, SHA1, DES, RC4, or another weak cryptographic primitive being executed by the skill.
The cited content is documentation or API terminology, not cryptographic code. A manual review found no executable weak crypto implementation in the scanned files.

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