Versioned security assessment

Report ID: SA-89EDFDC7

7/23/2026, 6:49:30 AM

streaming-api-patterns security assessment v9

Skill Security Certification Report

Audit History
Scanner version 3.0.0 Audit model: codex Latest published report
Skill name
streaming-api-patterns
Version
v1.0.0
Maintainer
AI Agent Hub
Source
github.com/ArieGoldkin/ai-agent-hub/tree/main/skills/streaming-api-patterns
Coverage
3 Files scanned · 420 Lines analyzed
Policy version
skillstore-security-audit-policy-v1

Highest confirmed finding severity

Medium

2 confirmed security findings require 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.

Static command findings are false positives caused by Markdown fences and TypeScript template literals; no shell execution exists. Network calls are expected examples for a streaming API skill and use local, relative, or standards documentation URLs. Two separate medium-risk example defects remain: unescaped error serialization and an unauthenticated, unvalidated WebSocket broadcast.

Report position

Latest published report

Latest refers to the report sequence, not to artifact currentness.

Audit attestation

Active attestation

A public attestation is available for this exact report.

Human verification

Not verified

No human verification is recorded for this report.

Coverage

3 Files scanned · 420 Lines analyzed

2 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

    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 9 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 13 evidence locations

Risk findings

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

Confirmed security concerns (2)

RISK-001 Medium
templates/sse-endpoint-template.ts:34-37
Unsafe SSE Error Serialization and Disclosure
The template inserts error.message directly into quoted JSON and sends it to clients. Quotes or newlines can corrupt framing, and internal details may leak.
Line 36 directly interpolates error.message without JSON.stringify or a public error mapping. The surrounding catch sends it over SSE.
RISK-002 Medium
SKILL.md:76-86
Unprotected WebSocket Broadcast Example
The server forwards every incoming message to all connected clients without authentication, authorization, origin checks, schema validation, or size limits.
The handler broadcasts raw data immediately. Later checklist guidance mentions safeguards, but the runnable example does not implement them.

Remediation

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

  1. FIX-001
    Medium
    SSE errors are interpolated into JSON text and exposed to clients.
    Serialize a fixed public error object with JSON.stringify, log internal details server-side, and reject newline characters in SSE fields.
  2. FIX-002
    Medium
    The WebSocket broadcast example accepts and forwards every message without access controls.
    Require authentication, validate origins and message schemas, enforce size and rate limits, and authorize recipients before broadcasting.

Expert evidence

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

Artifact subject

Marketplace commit
89edfdc710d0846129dcee6a929477b04f08052c
Content hash
25f3d4f572c0b53d2a9eee09a5f53281f7724bdee0afad7e9b8f1bc566f135c7
Tree hash
8c1344bfa4ca68827252e2947928f57feff93b9a3f2d934ff9b37aa7c0be16eb
Skill path
skills/ariegoldkin/streaming-api-patterns
Audit payload hash
34ea1d3c33b935abdd1b4c62dc1015c8

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 Signed attestation 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: active