Skills/PyPI/protomcp

protomcp@0.3.1

VERIFIED· install only

Publisher claims: "Write MCP tools in Python. No MCP knowledge required." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher msilverblatt · publishing for 245 daysInstalls 69Last detonated 45 min ago
$claude mcp add protomcp -- uvx protomcp
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Coverage

Nothing executable in the bundle ran; the trace covers the install step only.
Tested
every file read, file written and host contacted by what ran
Not tested
use of the skill by an agent

What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
no credential variables read in the code
Where it talks to
no vendor host named in the code
What the honeypot saw
no credential files read · no network
What we could not test
use of the skill by an agent

Connect it under the guard. Nothing executable in the bundle ran; the trace covers the install step only. The code names no credential variable; the guard pins the network to what the honeypot saw and logs every call.

$vet-skills run --net declared -- uvx protomcp

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (1 scenario; nothing executable in the bundle ran; the trace covers the install step only) on 2026-11-15 and scored it 85/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 1 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.0sprocessscript backend runs setup only
0.0sprocessscript backend runs setup only
0.0sprocessno install scripts to re-run

Static findings

MEDIUM
Auto-update or dynamic fetch configurationtests/test_discovery.py:10 · Auto-update or dynamic fetch configuration — agent may load new code at runtimeassert cfg["hot_reload"] is TrueFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
Auto-update or dynamic fetch configurationtests/test_round3_regression.py:267 · Auto-update or dynamic fetch configuration — agent may load new code at runtimeconfigure(handlers_dir=tmpdir, hot_reload=True)Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
Auto-update or dynamic fetch configurationtests/test_round3_regression.py:283 · Auto-update or dynamic fetch configuration — agent may load new code at runtimeconfigure(handlers_dir=tmpdir, hot_reload=True)Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
Auto-update or dynamic fetch configurationtests/test_discovery.py:7 · Auto-update or dynamic fetch configuration — agent may load new code at runtimeconfigure(handlers_dir="handlers/", hot_reload=True)Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
Python subprocess execution detectedsrc/protomcp/sidecar.py:60 · Python subprocess execution detectedproc = subprocess.Popen(sc.command, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, start_new_session=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Auto-update or dynamic fetch configurationtests/test_discovery.py:73 · Auto-update or dynamic fetch configuration — agent may load new code at runtimeconfigure(handlers_dir=tmpdir, hot_reload=True)Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
HIGH
Auto-update or dynamic fetch configurationsrc/protomcp/runner.py:229 · Auto-update or dynamic fetch configuration — agent may load new code at runtime# Re-discover handlers if hot_reload is enabledFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
Auto-update or dynamic fetch configurationtests/test_round3_regression.py:248 · Auto-update or dynamic fetch configuration — agent may load new code at runtimeconfigure(handlers_dir=tmpdir, hot_reload=True)Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
Auto-update or dynamic fetch configurationtests/test_round3_regression.py:318 · Auto-update or dynamic fetch configuration — agent may load new code at runtimeconfigure(handlers_dir=tmpdir, hot_reload=True)Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
Auto-update or dynamic fetch configurationtests/test_round3_regression.py:299 · Auto-update or dynamic fetch configuration — agent may load new code at runtimeconfigure(handlers_dir=tmpdir, hot_reload=True)Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
HIGH
Auto-update or dynamic fetch configurationsrc/protomcp/discovery.py:29 · Auto-update or dynamic fetch configuration — agent may load new code at runtimehot_reload = _config.get("hot_reload", False)Fix: Pin versions and sources; vendor anything fetched at install time.
AST06

Cost to the agent

Instructions loaded
≈48 tok
1 file · 49 in bundle

Tokens estimated at four characters each. Skills load their instruction text when triggered; the figure is what that costs.

Known vulnerabilities

No advisories in OSV for protomcp@0.3.1 as of 22 min ago. This is the package itself, not its dependencies.