Versioned security assessment

Report ID: SA-B9E5AE9C

7/10/2026, 10:48:46 AM

email-render-builder security assessment v5

Skill Security Certification Report

Audit History
Audit model: codex Historical report
Skill name
email-render-builder
Version
v5
Maintainer
aaron-he-zhu
Source
github.com/aaron-he-zhu/aaron-marketing-skills/tree/main/email/engage/email-render-builder
Coverage
3 Files scanned · 192 Lines analyzed
Policy version
Unavailable

Highest confirmed finding severity

Medium

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 alerts are false positives caused by Markdown backticks, repository-relative documentation links, and email-client terminology. The optional Resend command can execute a local connector and send email with the live flag, while the skill also directs persistent memory updates without an explicit approval gate.

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 · 192 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

    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 2 evidence locations

Filesystem access

May read or write local files.

Observed in 19 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 16 evidence locations

Capability review items (1)
Medium
SKILL.md:54
Ruby/shell backtick execution
**Zero-dependency render-test send (when Resend is the ESP)**: `python3 "${CLAUDE_PLUGIN_ROOT}/scrip
The line provides an executable Python connector command with a live flag that sends email over the network. Although scoped to test inboxes, execution causes an external side effect and requires explicit user approval.

Risk findings

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

Confirmed security concerns (1)

RISK-001 Medium
SKILL.md:42
Persistent Memory Writes Without Explicit Confirmation
The skill directs confirmed render blockers into persistent memory files without a clear approval gate. This can persist inaccurate or untrusted-derived content into later agent context.
The instruction explicitly names two memory files as promotion targets, while the nearby confirmation gate applies only to the separate save-results path.

Remediation

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

  1. FIX-001
    Medium
    The optional Resend workflow includes a live command that can send email.
    Require explicit confirmation immediately before execution, display the sender and recipients, and keep dry-run behavior as the default.
  2. FIX-002
    Medium
    Confirmed render blockers are promoted into persistent memory files without a clear approval step.
    Ask before writing memory files, show the target paths and proposed content, and exclude untrusted pasted markup from persistent notes.

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