Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Autodesk Revit MCP Server

Python MCP server for reviewing BIM model quality and fixing Revit parameters with Claude, Codex and other MCP clients.

Compatibility: Not stated.

Grade C

One Medium finding. Read the findings before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

Rescanned at commit 611650ed9a77.

PERMISSION_SHELL_UNDECLARED

Why this grade

  • PERMISSION_SHELL_UNDECLARED Medium

    Runs shell commands that the manifest or description does not mention.

    src/revit_mcp_server/agent_bridge.py, line 68 # subprocess.run (no shell) resolves a bare name via CreateProcess, which

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Concern

    requests shell access. No manifest field names shell or command execution.

    PERMISSION_SHELL_UNDECLARED

    src/revit_mcp_server/agent_bridge.py, line 68

    # subprocess.run (no shell) resolves a bare name via CreateProcess, which

    src/revit_mcp_server/agent_bridge.py, line 118

    proc = subprocess.run(args, capture_output=True, encoding="utf-8", stdin=subprocess.DEVNULL, timeout=_TURN_TIMEOUT_SECONDS, env=env)

    src/revit_mcp_server/agent_bridge.py, line 159

    proc = subprocess.run(base, capture_output=True, encoding="utf-8", stdin=subprocess.DEVNULL, timeout=_TURN_TIMEOUT_SECONDS)

    Show more

    src/revit_mcp_server/agent_bridge.py, line 206

    listed = subprocess.run([codex_path, "mcp", "list"], capture_output=True, encoding="utf-8", stdin=subprocess.DEVNULL, timeout=15)

    src/revit_mcp_server/agent_bridge.py, line 209

    subprocess.run(

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    src/revit_mcp_server/providers/revit.py, line 115

    resp = httpx.get(f"{probe_url}/health", timeout=0.5)

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    src/revit_mcp_server/providers/cloud.py, line 863

    client_secret=client_secret or os.getenv("APS_CLIENT_SECRET") or os.getenv("AUTODESK_CLIENT_SECRET"),

    src/revit_mcp_server/config.py, line 13

    # Load .env file - search in multiple locations

    src/revit_mcp_server/config.py, line 18

    Path(__file__).parent.parent.parent.parent.parent / ".env", # repo root from package

    Show more

    src/revit_mcp_server/config.py, line 19

    Path.cwd() / ".env", # current directory

    src/revit_mcp_server/config.py, line 20

    Path(__file__).parent.parent.parent / ".env", # package root

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Note

    a file was over the read cap and was not fully read.

    OBFUSCATION_FILE_OVER_READ_CAP

    uv.lock, line 1

    version = 1

  • Licence

    Pass

    A licence file is present (packages/mcp-server-revit/LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit 611650ed9a77. requests shell access. No manifest field names shell or command execution. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: 611650ed9a7743179df33c99ce41bcdcedf3f8d0

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen