Skills/PyPI/us-car-sales-tax

us-car-sales-tax@0.2.0

VERIFIED

Publisher claims: "Car sales tax, title and registration fees for U.S. states, offline: out-the-door cost calculators for Texas, California, Florida, New York and Pennsylvania with county and city rates, plus the car sales tax rule of all 50 states. No dependencies." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server) · listed in the official MCP RegistryPublisher anders-lee · joined 0 days agoInstalls 0Last detonated 1 h ago
$claude mcp add us-car-sales-tax -- uvx us-car-sales-tax
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Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-11-06 and scored it 88/100 (Verified). It did what it claims and nothing else we could detect: no undeclared network egress, no credential reads, no persistent instruction writes. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.1sprocessdependency install exit 1
0.1sprocessexec /usr/bin/date
0.1sprocessexec /usr/bin/timeout
0.1sprocessexec .venv/bin/car-sales-tax
0.1sclaimedno tools/list reply (exit 0)
0.1sprocessscript backend runs setup only
0.2sprocessno install scripts to re-run

Static findings

No findings across 5,452 lines in 22 files.

Cost to the agent

Instructions loaded
≈100 tok
1 file · 22 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

Not checked against OSV yet; the weekly check has not reached this version.

us-car-sales-tax@0.2.0 safety verdict: Verified 88/100 — KillerSkills