Skills/PyPI/klayout-mcp

klayout-mcp@0.2.3

VERIFIED

Publisher claims: "Observer-first MCP server for KLayout layout inspection." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher pypi · joined 11 days agoInstalls 65Last detonated 3 h ago
$claude mcp add klayout-mcp -- uvx klayout-mcp
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Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-11-05 and scored it 83/100 (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
0.2sprocessdependency install exit 1
0.3sprocessexec /usr/bin/date
0.3sprocessexec /usr/bin/timeout
0.3sprocessexec .venv/bin/klayout-mcp
0.3sclaimedno tools/list reply (exit 0)
0.4sprocessscript backend runs setup only

Static findings

MEDIUM
Python subprocess execution detectedtests/test_server_entrypoint.py:12 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedsrc/klayout_mcp/bridge/drc.py:281 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05

Cost to the agent

Instructions loaded
≈50 tok
1 file · 47 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.

klayout-mcp@0.2.3 safety verdict: Verified 83/100 — KillerSkills