Versioned security assessment

Report ID: SA-84970D1D

7/9/2026, 1:35:57 AM

grasshopper-workflow security assessment v10

Skill Security Certification Report

Audit History
Audit model: claude Historical report
Skill name
grasshopper-workflow
Version
v10
Maintainer
AmemiyaLai
Source
github.com/AmemiyaLai/grasshopper-mcp-workflow/tree/main/grasshopper-workflow/
Coverage
16 Files scanned · 4,253 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.

Most static findings are false positives caused by Grasshopper component identifiers, Markdown code fences, import fallbacks, and high-entropy Chinese documentation with GUIDs. The confirmed risks are filesystem writes to user-supplied or workflow-controlled paths, which are expected for this automation skill but should be reviewed before execution.

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 · 4,253 Lines analyzed

7 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.

Observed in 3 evidence locations

Network access

May connect to external services.

Not recorded by this audit

Filesystem access

May read or write local files.

Observed in 9 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 22 evidence locations

Capability review items (7)
Medium
scripts/cli.py:106
Python file write/append
with open(args.output, 'w', encoding='utf-8') as f:
This writes to a path supplied through CLI arguments or workflow input and can overwrite files accessible to the user running the skill. The behavior is functional, but it is a real filesystem write risk that should require review.
Medium
scripts/cli.py:124
Python file write/append
with open(args.output, 'w', encoding='utf-8') as f:
This writes to a path supplied through CLI arguments or workflow input and can overwrite files accessible to the user running the skill. The behavior is functional, but it is a real filesystem write risk that should require review.
Medium
scripts/cli.py:135
Python file write/append
with open(args.output, 'w', encoding='utf-8') as f:
This writes to a path supplied through CLI arguments or workflow input and can overwrite files accessible to the user running the skill. The behavior is functional, but it is a real filesystem write risk that should require review.
Medium
scripts/cli.py:310
Python file write/append
with open(args.output, 'w', encoding='utf-8') as f:
This writes to a path supplied through CLI arguments or workflow input and can overwrite files accessible to the user running the skill. The behavior is functional, but it is a real filesystem write risk that should require review.
Medium
scripts/parser_utils.py:478
Python file write/append
with open(file_path, 'w', encoding='utf-8') as f:
This writes to a path supplied through CLI arguments or workflow input and can overwrite files accessible to the user running the skill. The behavior is functional, but it is a real filesystem write risk that should require review.
Medium
scripts/utils.py:48
Python file write/append
with open(file_path, 'w', encoding='utf-8') as f:
This writes component ID mappings to a package-relative JSON file during normal operation. It is expected behavior, but it modifies the filesystem and should be disclosed to users.
Medium
scripts/utils.py:160
Python file write/append
with open(json_path, 'w', encoding='utf-8') as f:
This writes to a path supplied through CLI arguments or workflow input and can overwrite files accessible to the user running the skill. The behavior is functional, but it is a real filesystem write risk that should require review.

Risk findings

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

No confirmed security findings were recorded for this completed audit.

Remediation

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

  1. FIX-001
    Medium
    CLI and workflow commands can write JSON outputs to caller-provided paths.
    Restrict output paths to the project workspace or require explicit confirmation before overwriting existing files.
  2. FIX-002
    Low
    The skill sends modeling commands to a local Grasshopper MCP server.
    Document that users should run it only against trusted local MCP servers and review generated placement files before execution.

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.

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