MCP, MCP server
Owl Mcp
OWL-MCP is a Model-Context-Protocol (MCP) server for working with Web Ontology Language (OWL) ontologies.
Compatibility: Not stated.
Grade C
One Medium finding. Read the findings before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit fd72630b40b3, unchanged since the check below.
PERMISSION_SHELL_UNDECLARED
Why this grade
- PERMISSION_SHELL_UNDECLARED Medium
Runs shell commands that the manifest or description does not mention.
src/owl_mcp/owl_api.py, line 242
subprocess.run(["make", MAKEFILE_NORMALIZE_RULE], check=True)
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/owl_mcp/owl_api.py, line 242
subprocess.run(["make", MAKEFILE_NORMALIZE_RULE], check=True)
docs/examples/mcp-client-example.ipynb, line 76
"server_process = subprocess.Popen(\n",
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Pass
No network call found.
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_DOTENV
.gitignore, line 45
# Local development
.gitignore, line 46
.env
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
tests/input/ro.owl, line 1
<?xml version="1.0"?>
tests/input/normalize-test/ro.ofn, line 1
Prefix(:=<http://purl.obolibrary.org/obo/ro.owl#>)
Licence
Note
no licence file found.
LICENCE_MISSING
No file path was stored.
no licence file found.
Maintainer activity
Note
the latest commit is more than 365 days old.
MAINTAINER_STALE
No file path was stored.
2025-06-04T17:44:53-07:00
Note
Hygiene check of commit fd72630b40b3. requests shell access. No manifest field names shell or command execution. reads a credential or environment file. a file was over the read cap and was not fully read. no licence file found. the latest commit is more than 365 days old.
Date and source
Date checked:
github.com
Commit graded: fd72630b40b3cb5faa2537ba33d2beaa7a229061
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