MCP, MCP server
Credence Epistemic Guard
AI doesn't remember what it wasn't sure about.
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 7b431f0f7d26, unchanged since the check below.
NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED INSTALL_DOCUMENTED_INSTALLER SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP
Why this grade
- NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
credence/providers.py, line 92
resp = requests.post( - SECRETS_PATH_DOTENV Low
Mentions a .env file.
.gitignore, line 1
.env - PERMISSION_SHELL_DECLARED Note
Runs shell commands, and the manifest or description says so.
credence/install_gate.py, line 70
result = subprocess.run( - INSTALL_DOCUMENTED_INSTALLER Note
Documentation shows an installer that pipes a download into a shell.
credence/install_gate.py, line 60
print(" curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh") - SECRETS_ENV_READ Note
Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.
credence/context_manager.py, line 759
resolved_key = api_key or os.environ.get("ANTHROPIC_API_KEY", "") - OBFUSCATION_FILE_OVER_READ_CAP Note
A file was over the read cap and was not fully read.
evals/compression_faithfulness_n50_results.json, line 1
{
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
credence/install_gate.py, line 70
result = subprocess.run(
evals/claude_code_client.py, line 93
result = subprocess.run(
evals/claude_code_client.py, line 119
r = subprocess.run(
Show more
evals/false_positive_rate.py, line 139
"subprocess.run(['git', 'push', 'origin', 'main'], check=True)",
Install and update
Note
The docs document an installer that pipes a download into a shell.
INSTALL_DOCUMENTED_INSTALLER
credence/install_gate.py, line 60
print(" curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh")
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
credence/providers.py, line 92
resp = requests.post(
evals/stress_test.py, line 183
"response = requests.get(url, timeout=10)",
experimental/typescript/src/registry-client.ts, line 86
const resp = await fetch(`${this.baseUrl}/tools/${tool}`, {
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
credence/context_manager.py, line 759
resolved_key = api_key or os.environ.get("ANTHROPIC_API_KEY", "")
credence/providers.py, line 27
_HF_TOKEN = os.environ.get("HF_TOKEN", "")
.gitignore, line 1
.env
Show more
credence/providers.py, line 36
_GROQ_TOKEN = os.environ.get("GROQ_API_KEY", "")
credence/providers.py, line 153
api_key = os.environ.get("ANTHROPIC_API_KEY", "")
evals/adversarial_tests.py, line 73
_CLIENT = Anthropic(api_key=os.environ.get("ANTHROPIC_API_KEY", ""))
evals/calibration.py, line 276
api_key = os.environ.get("ANTHROPIC_API_KEY")
evals/end_to_end_compression.py, line 640
key = os.environ.get("ANTHROPIC_API_KEY", "")
evals/experiments.py, line 67
api_key = os.environ.get("ANTHROPIC_API_KEY", "")
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
evals/compression_faithfulness_n50_results.json, line 1
{
evals/null_hypothesis_results.json, line 1
{
evals/eql_bench/eql_bench_v2.json, line 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 7b431f0f7d26. requests shell access. The manifest names this permission. The docs document an installer that pipes a download into a shell. can reach a host that is not written as a fixed address. 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: 7b431f0f7d26b71e630103f89911ec232f17375a
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