MCP, MCP server
QECTOR Quantum Error Correction
Local QECTOR quantum error correction plugin for Claude Code and Claude Desktop with strict math skills, focused agents, and qector-decoder-v3 MCP servers.
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 4ff285490b6b, unchanged since the check below.
PERMISSION_DELETE_FILES INSTALL_UNPINNED NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV SECRETS_ENV_READ
Why this grade
- PERMISSION_DELETE_FILES Low
Contains a call that can delete files.
mcp/mcp_server_qector_bench.py, line 1230
proc = subprocess.Popen( - INSTALL_UNPINNED Low
Dependencies use a range or git URL with no lockfile.
requirements.txt, line 10
numpy>=1.26,<2.3 - NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
mcp/mcp_server_library.py, line 1136
with urllib.request.urlopen( - SECRETS_PATH_DOTENV Low
Mentions a .env file.
CHANGELOG.md, line 249
`.env.local`). If this file is already committed to git history, run - SECRETS_ENV_READ Note
Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.
mcp/mcp_server_qector_bench.py, line 2419
"QECTOR_LICENSE_KEY": bool(os.environ.get("QECTOR_LICENSE_KEY")),
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
can delete files.
PERMISSION_DELETE_FILES
mcp/mcp_server_qector_bench.py, line 1230
proc = subprocess.Popen(
mcp/mcp_server_qector_bench.py, line 2463
p = subprocess.run(
scripts/build_release.py, line 262
result = subprocess.run(
Show more
scripts/configure_claude_desktop.py, line 83
out = subprocess.run(
scripts/configure_claude_desktop.py, line 92
out = subprocess.run(["pgrep", "-fli", "claude"], capture_output=True, text=True, timeout=10)
scripts/configure_claude_desktop.py, line 134
shutil.rmtree(path, onexc=_on_exc)
scripts/configure_claude_desktop.py, line 136
shutil.rmtree(path, onerror=_on_error_legacy)
scripts/configure_claude_desktop.py, line 540
completed = subprocess.run(
scripts/probe_workbench_mcp.py, line 45
proc = subprocess.Popen(
scripts/qector_system_setup.py, line 108
p = subprocess.run(
Install and update
Concern
dependencies are not pinned.
INSTALL_UNPINNED
requirements.txt, line 10
numpy>=1.26,<2.3
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
mcp/mcp_server_library.py, line 1136
with urllib.request.urlopen(
mcp/mcp_server_qector_bench.py, line 465
with urllib.request.urlopen(
.github/workflows/publish-mcp-registry.yml, line 117
schema = requests.get(data["$schema"], timeout=30).json()
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
mcp/mcp_server_qector_bench.py, line 2419
"QECTOR_LICENSE_KEY": bool(os.environ.get("QECTOR_LICENSE_KEY")),
scripts/qector_system_setup.py, line 66
"QECTOR_LICENSE_KEY": bool(os.environ.get("QECTOR_LICENSE_KEY")),
CHANGELOG.md, line 249
`.env.local`). If this file is already committed to git history, run
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.md).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit 4ff285490b6b. can delete files. dependencies are not pinned. can reach a host that is not written as a fixed address. reads a credential or environment file.
Date and source
Date checked:
github.com
Commit graded: 4ff285490b6b7ba1cf6bd668989f06e57e890911
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