Is claude-code-llm-router safe to install?

claude-code-llm-router was flagged as CRITICAL RISK (risk score 141) with 16 findings detected across 86 files. Review the findings before installing.

What security issues were found in claude-code-llm-router?

Sigil detected 16 findings in claude-code-llm-router, including patterns related to network_exfil, provenance, install_hooks, code_patterns. See the full scan report for details.

Scans/pypi/claude-code-llm-router

claude-code-llm-router

pypi

Summary

claude-code-llm-router v0.5.2 was classified as CRITICAL RISK with a risk score of 141. Sigil detected 16 findings across 86 files, covering phases including network exfiltration, provenance, install hooks, code patterns. Review the findings below before installing this package.

Package description: Multi-LLM router MCP server for Claude Code — smart complexity routing, Claude subscription monitoring, Codex integration, 20+ providers

CRITICAL RISK(141)

v0.5.2

30 March 2026, 15:27 UTC

by Sigil Bot

Risk Score

141

Findings

Files Scanned

Provenance

Registry

https://pypi.org/project/claude-code-llm-router/0.5.2/

Findings by Phase

•

Phase Ordering

Phases are ordered by criticality, with the most dangerous at the top. Click any phase header to expand or collapse its findings. Critical phases are expanded by default.

install-makefile-curl

HIGH

Makefile/script pipes remote content to shell

claude_code_llm_router-0.5.2/scripts/install.sh:25

if ! command -v uv &>/dev/null; then
    echo "Error: 'uv' not found. Install it: curl -LsSf https://astral.sh/uv/install.sh | sh"
    exit 1

Why was this flagged?

A script or Makefile pipes content from a remote URL directly into a shell (curl | sh or wget | bash). This is inherently dangerous because the remote content can change at any time, and the command runs with the current user's permissions. Rated HIGH because it requires manual execution (unlike install hooks) but still executes arbitrary remote code.

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