MCP, MCP server
Sift Gateway
Reliability gateway for AI tool output: schema-stable, secret-safe, pagination-complete JSON.
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 87293b539506, unchanged since the check below.
NETWORK_HOST_FROM_INPUT
Why this grade
- NETWORK_HOST_FROM_INPUT Medium
A file takes a URL or endpoint as input and has no fixed host list.
benchmarks/common/llm_client.py, line 110
with urllib.request.urlopen(request, timeout=120) as resp:
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.
If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.
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
scripts/compare_sift_vs_plain.py, line 57
completed = subprocess.run(
scripts/run_rc_preflight.py, line 54
completed = subprocess.run(
scripts/smoke_cli_behavior.py, line 130
completed = subprocess.run(
Show more
scripts/smoke_cli_behavior.py, line 1040
shutil.rmtree(work_dir, ignore_errors=True)
src/sift_gateway/cli_main.py, line 367
return subprocess.run(
src/sift_gateway/codegen/runtime.py, line 259
return subprocess.run(
src/sift_gateway/config/package_install.py, line 103
result = subprocess.run(
src/sift_gateway/config/package_install.py, line 144
result = subprocess.run(
src/sift_gateway/config/upstream_admin.py, line 308
shutil.rmtree(path)
src/sift_gateway/config/upstream_admin.py, line 1277
shutil.rmtree(cache_dir)
SECURITY.md, line 47
1. Command execution uses `subprocess.run(command_argv, shell=False)`.
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Serious
accepts a host from input, with no fixed list in this file.
NETWORK_HOST_FROM_INPUT
benchmarks/common/llm_client.py, line 110
with urllib.request.urlopen(request, timeout=120) as resp:
benchmarks/common/llm_client.py, line 179
with urllib.request.urlopen(request, timeout=120) as resp:
benchmarks/tier1/fetch_data.py, line 49
with urllib.request.urlopen(request, timeout=60) as response:
Show more
benchmarks/tier2/llm_tool_client.py, line 167
with urllib.request.urlopen(request, timeout=120) as resp:
scripts/compare_sift_vs_plain.py, line 6
- `curl -s URL`
scripts/compare_sift_vs_plain.py, line 7
- `curl -s URL | jq -r '.[] | select(.email | test(needle; "i")) | .body'`
scripts/compare_sift_vs_plain.py, line 9
- `sift-gateway run --json -- curl -s URL`
scripts/compare_sift_vs_plain.py, line 364
with urllib.request.urlopen(request, timeout=60) as response:
src/sift_gateway/config/settings.py, line 358
"Max pages to auto-fetch (overrides gateway "
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
benchmarks/common/llm_client.py, line 64
key = os.environ.get("ANTHROPIC_API_KEY", "")
benchmarks/common/llm_client.py, line 66
key = os.environ.get("OPENAI_API_KEY", "")
benchmarks/tier1/fetch_data.py, line 40
token = os.environ.get("GITHUB_TOKEN", "")
Show more
scripts/compare_sift_vs_plain.py, line 402
api_key = os.getenv("OPENAI_API_KEY", "")
.env.example, line 2
# Copy to .env and adjust values as needed.
.gitignore, line 12
# Environment
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
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 87293b539506. can delete files. accepts a host from input, with no fixed list in this file. reads a credential or environment file. a file was over the read cap and was not fully read.
Date and source
Date checked:
github.com
Commit graded: 87293b53950601727441b1b260c68d728dcbc660
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.