MCP, MCP server
Mcp Broker
Mcp Broker, an MCP server listed in the PlugVet directory.
Compatibility: Not stated.
Grade C
One Medium finding. Read the report before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
PERMISSION_SHELL_UNDECLARED
Why this grade
- PERMISSION_SHELL_UNDECLARED Medium
Runs shell commands that the manifest or description does not mention.
scripts/install_dependency_floors.py, line 68
return subprocess.run([str(args.pip), "install", "--quiet", *pins], check=False).returncode
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. can delete files.
PERMISSION_SHELL_UNDECLARED PERMISSION_DELETE_FILES
scripts/install_dependency_floors.py, line 68
return subprocess.run([str(args.pip), "install", "--quiet", *pins], check=False).returncode
scripts/install_git_hooks.py, line 14
current = subprocess.run(
scripts/install_git_hooks.py, line 23
active = subprocess.run(
Show more
scripts/install_git_hooks.py, line 34
value = subprocess.run(
scripts/install_git_hooks.py, line 42
subprocess.run(
scripts/install_git_hooks.py, line 46
subprocess.run(
scripts/mcpb_stdio_smoke.py, line 70
result = subprocess.run(
scripts/release_fanout.py, line 50
return subprocess.run(command, check=False).returncode
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
scripts/ensure_docker_hub_public.py, line 407
with urllib.request.urlopen(request, timeout=30) as response:
scripts/public-surface-smoke.sh, line 51
command -v curl >/dev/null 2>&1 || { printf "curl is required\n" >&2; exit 2; }
scripts/public-surface-smoke.sh, line 114
curl -fsSL \
Show more
scripts/public-surface-smoke.sh, line 156
with urllib.request.urlopen(url, timeout=30) as response:
scripts/smithery_release.py, line 260
with urllib.request.urlopen(request, timeout=timeout) as response:
scripts/verify_public_release.py, line 73
with urllib.request.urlopen(request, timeout=30) as response:
scripts/verify_public_release.py, line 221
with urllib.request.urlopen(request, timeout=30) as response:
src/mcp_broker/upstream_http.py, line 205
with urllib.request.urlopen(request, timeout=timeout_seconds) as response:
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_UNCONFIRMED
scripts/smithery_release.py, line 64
configured = os.environ.get("SMITHERY_API_KEY", "").strip()
src/mcp_broker/config.py, line 493
env = _parse_env_names(f"upstreams.{name}.env", data.get("env", {}))
docs/install.md, line 114
`upstreams.<name>.env` or runtime secret files under:
Show more
docs/migration.md, line 24
| `env` variable names | `upstreams.<name>.env` |
docs/security-model.md, line 53
Upstreams can resolve secret values from host environment names under `upstreams.<name>.env` or from runtime secret files under `upstreams.<name>.env_files`.
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Note
the file cap was reached before every file was read.
OBFUSCATION_FILE_CAP_REACHED
tests/unit/test_rollout_simulator_contract.py, line 1
from __future__ import annotations
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit ecaa7fb7ed6f. requests shell access. No manifest field names shell or command execution. can delete files. can reach a host that is not written as a fixed address. reads a credential or environment file. the file cap was reached before every file was read.
Date and source
Date checked:
github.com
Commit graded: ecaa7fb7ed6f26c008f9a0404b037fcbb653a5aa
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.