Versioned security assessment

Report ID: SA-81E8CC04

7/13/2026, 10:54:56 AM

improve-animations security assessment v1

Skill Security Certification Report

Audit History
Audit model: codex Historical report
Skill name
improve-animations
Version
v1
Maintainer
emilkowalski
Source
github.com/emilkowalski/skills/tree/main/skills/improve-animations/
Coverage
3 Files scanned · 293 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.

All 27 static findings are false positives caused by code-formatted prose, CSS examples, read-only search guidance, or a defensive prompt-injection rule. However, SKILL.md includes an explicit execute mode that delegates source modification, conflicting with its read-only description and hard rules. Publication should disclose and constrain this mode.

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 · 293 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.

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 22 evidence locations

Risk findings

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

Confirmed security concerns (1)

RISK-001 Medium
SKILL.md:22-23SKILL.md:96-97
Delegated Source Modification Conflicts With Read-Only Boundary
The skill claims source analysis is read-only, but execute delegates plan implementation and reconcile updates plan files. This expands behavior beyond the declared boundary.
The hard rules state that only plan files may change, while the execute variant explicitly dispatches implementation in a worktree. The contradiction is direct.

Remediation

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

  1. FIX-001
    Medium
    The execute and reconcile variants conflict with the stated read-only boundary.
    Remove mutating variants or revise the description and hard rules to require explicit approval before any delegated source changes.
  2. FIX-002
    Medium
    Delegated execution lacks explicit command, permission, and cleanup boundaries.
    Document allowed operations, require diff review, prohibit credential access, and define isolated worktree cleanup before offering execute mode.

Expert evidence

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

Artifact subject

Marketplace commit
81e8cc048419a03fee6efbc8df6f9e321a1a0a56
Content hash
2bc5a6cce4185d945b2c02b2df1a1e0d5ad73ac134469dc844000c9c8b207c6a
Tree hash
e16ae4083dafdb88177e374d6d09fdbae4183fbb179d336a6323a68ffecf7526
Skill path
skills/emilkowalski/improve-animations
Audit payload hash
88522206387cf05ca789ffc550069c41

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