MCP, MCP server
agentbridge
Production target restriction: HTTP named-target execution is disabled for generic MCP/A2A/ACP transports in prod and production until destination-atomic authority/fencing is qualified.
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.
INSTALL_UNPINNED NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED SECRETS_ENV_READ OBFUSCATION_FILE_CAP_REACHED
Why this grade
- INSTALL_UNPINNED Low
Dependencies use a range or git URL with no lockfile.
requirements.txt, line 4
fastapi>=0.141.1 - NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
examples/live_a2a_handshake.py, line 43
r = httpx.get(CARD_URL, timeout=2) - SECRETS_PATH_DOTENV Low
Mentions a .env file.
.dockerignore, line 11
.env - PERMISSION_SHELL_DECLARED Note
Runs shell commands, and the manifest or description says so.
examples/live_a2a_handshake.py, line 57
proc = subprocess.Popen([sys.executable, SERVER], - SECRETS_ENV_READ Note
Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.
main.py, line 33
if not os.environ.get("AGENTBRIDGE_ADMIN_KEY"): - OBFUSCATION_FILE_CAP_REACHED Note
The 400 file cap was reached before every file was read.
tools/check_documentation.py, line 1
"""Check local Markdown file targets without fetching external links.
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
examples/live_a2a_handshake.py, line 57
proc = subprocess.Popen([sys.executable, SERVER],
examples/live_inline_proxy.py, line 89
proc = subprocess.Popen([sys.executable, A2A_SERVER],
examples/live_nprotocol_proxy.py, line 79
proc = subprocess.Popen([sys.executable, ACP_SERVER],
Show more
tools/build_review_sbom.py, line 15
captured = subprocess.run([sys.executable, "-m", "pip", "inspect", "--local"],
tools/drill_pg_network_partition.py, line 16
p=subprocess.run(args,capture_output=True,text=True,timeout=timeout)
tools/drill_postgres_backup_restore.py, line 54
result = subprocess.run(args, input=source, capture_output=True, timeout=120)
tools/drill_postgres_pitr.py, line 15
proc=subprocess.run(args,capture_output=True,text=True,timeout=timeout)
tools/drill_postgres_replica_promotion.py, line 21
done = subprocess.run(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
Install and update
Concern
dependencies are not pinned.
INSTALL_UNPINNED
requirements.txt, line 4
fastapi>=0.141.1
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
examples/live_a2a_handshake.py, line 43
r = httpx.get(CARD_URL, timeout=2)
examples/live_inline_proxy.py, line 46
if httpx.get(url, timeout=2).status_code == 200:
examples/live_nprotocol_proxy.py, line 43
if httpx.get(url, timeout=2).status_code == 200:
Show more
src/api/auth_oidc.py, line 69
with urllib.request.urlopen(req, timeout=self.config.fetch_timeout_seconds) as resp: # noqa: S310 (trusted IdP URL)
tools/aws_pg_two_host_orchestrator.py, line 72
"curl -fsSL --retry 3 --max-time 50 "
tools/aws_pg_two_host_orchestrator.py, line 79
"curl -fsSL --retry 3 --max-time 50 "
Dockerfile.release, line 26
CMD python -c "import urllib.request;urllib.request.urlopen('http://127.0.0.1:8000/health',timeout=3)"
landing/index.html, line 389
fetch(action,{method:'POST',body:new FormData(form),headers:{'Accept':'application/json'}})
src/api/static/index.html, line 60
const h = await (await fetch('/health')).json();
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
main.py, line 33
if not os.environ.get("AGENTBRIDGE_ADMIN_KEY"):
examples/github_mcp_bridge.py, line 33
if not os.getenv("GITHUB_PERSONAL_ACCESS_TOKEN"):
.dockerignore, line 11
.env
Show more
src/config.py, line 51
admin_key = os.getenv("AGENTBRIDGE_ADMIN_KEY", "")
src/config.py, line 88
receipt_key = os.getenv("AGENTBRIDGE_TRUSTED_DESTINATION_KEY_HEX", "")
src/config.py, line 89
readback_key = os.getenv("AGENTBRIDGE_TRUSTED_READBACK_KEY_HEX", "")
src/config.py, line 183
if oidc_issuer and not (os.getenv("AGENTBRIDGE_OIDC_PUBLIC_KEY_PEM")
src/config.py, line 184
or os.getenv("AGENTBRIDGE_OIDC_PUBLIC_KEY_FILE")
src/api/control_plane.py, line 86
ADMIN_KEY = os.getenv("AGENTBRIDGE_ADMIN_KEY") or secrets.token_hex(16)
.dockerignore, line 10
.ruff_cache
.dockerignore, line 13
!.env.example
.gitignore, line 16
env/
.gitignore, line 19
# Environment / secrets
.gitignore, line 20
.env
.gitignore, line 22
*.env
CHANGELOG.md, line 25
- `Makefile`, `.pre-commit-config.yaml`, `.editorconfig`, `.env.example`, `MANIFEST.in`.
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
tools/check_documentation.py, line 1
"""Check local Markdown file targets without fetching external links.
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 d8bdf3c3ba60. requests shell access. The manifest names this permission. dependencies are not pinned. 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: d8bdf3c3ba60dbe777db1b3885a8022b4be45646
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.