MCP, MCP server
cplusplus_mcp
An MCP (Model Context Protocol) server for analyzing C++ codebases using libclang.
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit 4f009b7d7b39, unchanged since the check below.
INSTALL_UNPINNED SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED
Why this grade
- INSTALL_UNPINNED Low
Dependencies use a range or git URL with no lockfile.
requirements.txt, line 1
mcp>=1.0.0 - SECRETS_PATH_DOTENV Low
Mentions a .env file.
mcp_server/cpp_mcp_server.py, line 353
'mcp_env', 'venv', '.venv', 'env', '.env', # Python virtual environments - PERMISSION_SHELL_DECLARED Note
Runs shell commands, and the manifest or description says so.
mcp_server/cpp_mcp_server.py, line 114
result = subprocess.run([llvm_config, "--libdir"], capture_output=True, text=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
Note
requests shell access. The manifest names this permission.
PERMISSION_SHELL_DECLARED
mcp_server/cpp_mcp_server.py, line 114
result = subprocess.run([llvm_config, "--libdir"], capture_output=True, text=True)
mcp_server/cpp_mcp_server.py, line 1110
result = subprocess.run(cmd, capture_output=True, text=True, timeout=30)
mcp_server/cpp_mcp_server.py, line 1142
result = subprocess.run(cmd, capture_output=True, text=True, timeout=30)
Show more
mcp_server/cpp_mcp_server.py, line 1181
result = subprocess.run(cmd, capture_output=True, text=True, timeout=30)
scripts/download_libclang.py, line 174
result = subprocess.run(["ar", "x", str(deb_path)], cwd=temp_dir, capture_output=True)
scripts/test_installation.py, line 90
result = subprocess.run(
Install and update
Concern
dependencies are not pinned.
INSTALL_UNPINNED
requirements.txt, line 1
mcp>=1.0.0
Network
Pass
No network call found.
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_DOTENV
mcp_server/cpp_mcp_server.py, line 353
'mcp_env', 'venv', '.venv', 'env', '.env', # Python virtual environments
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Pass
No encoded or minified payload found.
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Note
the latest commit is more than 365 days old.
MAINTAINER_STALE
No file path was stored.
2025-09-17T20:08:17-05:00
Note
Hygiene check of commit 4f009b7d7b39. requests shell access. The manifest names this permission. dependencies are not pinned. reads a credential or environment file. the latest commit is more than 365 days old.
Date and source
Date checked:
github.com
Commit graded: 4f009b7d7b39ae09893d9c67cd9bd8b31e6d7e86
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