Skills/PyPI/mcp-facturacion-electronica-es

mcp-facturacion-electronica-es@0.10.1

VERIFIED

Publisher claims: "MCP server for Spanish electronic invoicing (VERI*FACTU, Facturae/FACe, SII, Crea y Crece B2B), direct-to-authority, no intermediary" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher cmendezs · joined 1 days agoInstalls 587Last detonated 3 h ago
$claude mcp add mcp-facturacion-electronica-es -- uvx mcp-facturacion-electronica-es
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Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-11-07 and scored it 81/100 (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/mcp-facturacion-electronica-es
0.1sclaimedno tools/list reply (exit 0)
0.2sprocessscript backend runs setup only
0.2sprocessno install scripts to re-run

Static findings

HIGH
Access to sensitive file pathssrc/mcp_facturacion_electronica_es/config.py:35 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Hidden zero-width characters detectedsrc/mcp_facturacion_electronica_es/resources/facturae/Facturaev3_2_2.xml:1 · Hidden zero-width characters detected — may conceal contentFix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST07

Cost to the agent

Instructions loaded
≈79 tok
1 file · 62 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

No advisories in OSV for mcp-facturacion-electronica-es@0.10.1 as of 3 h ago. This is the package itself, not its dependencies.

mcp-facturacion-electronica-es@0.10.1 safety verdict: Verified 81/100 — KillerSkills