Versioned security assessment

Report ID: SA-C801FC7A

5/23/2026, 9:19:41 AM

pptx-prep security assessment v1

Skill Security Certification Report

Audit History

Audit model: claude Historical report

Skill name: pptx-prep
Version: v1
Maintainer: xiaomengbi520
Source: github.com/xiaomengbi520/pptx-prep/tree/main/
Coverage: 16 Files scanned · 1,789 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.

All 199 static analysis findings are false positives. The skill is a documentation-based workflow for PPTX material pre-check with no runtime code execution. The 'weak cryptographic algorithm' flags match normal JSON/YAML keys, URLs, and markdown text. 'external_commands' findings are shell command examples in README documentation. 'network' findings are documentation URLs and JSON Schema references. No malicious intent, obfuscation, or prompt injection detected. The validate.py is a standard file format validator with no dangerous operations.

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

16 Files scanned · 1,789 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.

Source

Binding unavailable
Artifact

Identity incomplete
Audit

Complete
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 1 evidence location

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 2 evidence locations

Capability review items (3)

Low

README.md:46-48 SKILL.md:28-35 validate.py:3

Documentation Shell Command Examples

README files contain shell command examples (git clone, cp, python) used for installation instructions. These are documentation code blocks, not executable code. The skill has no runtime that executes external commands.

Shell commands only appear in markdown code blocks and documentation, not in any executable script. The skill's only executable file (validate.py) does not call any shell commands.

Low

manifest.schema.json:2-3 README.md:7-9

Documentation URLs in README and Schema

URLs found in README badge links, repository references, and JSON Schema $schema/$id fields. These are documentation references, not runtime network calls.

All URLs are README badge links (shields.io), GitHub repository links, and JSON Schema identifiers. No runtime network requests are made.

Low

README.md:48

Hidden File Path in Installation Instructions

README shows installation path ~/.claude/skills/pptx-prep in a code example. This documents the standard Claude Code skills installation directory.

Path appears in a markdown code block as installation documentation. The skill does not read or write to hidden directories at runtime.

Risk findings

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

No confirmed security findings were recorded for this completed audit.

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: claude

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 (2)

Low

manifest.schema.json:5 SKILL.md:3 validate.py:24

Static Analyzer Cryptographic False Positives

Static analyzer flagged 87+ locations for 'weak cryptographic algorithm' on normal JSON keys, YAML values, URLs, markdown text, and Python identifiers. Examples include 'manifest_version', 'photo', 'text', logo.png, '1:1', GitHub URLs, and Python constant names like 'VALID_STATUSES'. None of these are cryptographic content.

The scanner shows systematic false positives by flagging normal JSON/YAML schema property names, enum values, documentation URLs, file paths, and Python identifiers as 'cryptographic content'. This is a known scanner limitation with schema/documentation files.

Low

README.md:1 SKILL.md:1

Entropy-based Obfuscation False Positives

Static analyzer flagged high file entropy on README.md, README_CN.md, and SKILL.md due to mixed Chinese/English content, YAML front matter, and HTML tags. The 'DANGEROUS COMBINATION' meta-finding aggregates these false positives. No actual obfuscation or encoded payloads exist.

High entropy is caused by bilingual markdown content (Chinese + English), HTML alignment tags, and YAML front matter delimiters. This is normal for well-documented multilingual skills, not obfuscation.

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