Summary
RobThePCGuy/Claude-Patent-Creator v2026-03-27 was classified as CRITICAL RISK with a risk score of 680. Sigil detected 46 findings across 163 files, covering phases including provenance, install hooks, code patterns, obfuscation, network exfiltration. Review the findings below before installing this package.
Package description: USPTO patent creation system with MCP server + Claude Code plugin. Hybrid RAG search over MPEP/USC/CFR, BigQuery access to 76M+ patents, automated 35 USC 112 compliance checks, prior art search...
v2026-03-27
27 March 2026, 20:38 UTC
by Sigil Bot
Risk Score
680
Findings
46
Files Scanned
163
Provenance
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
HIGHMakefile/script pipes remote content to shell
repo/install.py:477
print_info(" macOS: Run in terminal:")
print_info(" curl https://sdk.cloud.google.com | bash")
else: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.
install-makefile-curl
HIGHMakefile/script pipes remote content to shell
repo/install.py:480
print_info(" Linux: Run in terminal:")
print_info(" curl https://sdk.cloud.google.com | bash")
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.
install-makefile-curl
HIGHMakefile/script pipes remote content to shell
repo/mcp_server/cli.py:356
print("\n Linux:", file=sys.stderr)
print(" curl https://sdk.cloud.google.com | bash", file=sys.stderr)
print(" exec -l $SHELL # Restart shell", file=sys.stderr)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.
install-npm-postinstall
CRITICALnpm lifecycle script — runs automatically on install
repo/package.json:10
"scripts": {
"postinstall": "pip install -r mcp_server/requirements.txt && echo '\n MCP server installed!\n\n📚 Next steps:\n1. Download MPEP PDFs from USPTO\n2. Place PDFs in mcp_server/ directory\n3. Run: python mcp_server/server.py --rebuild-index\n4. Restart Claude Code and use /mcp to verify\n'"
},Why was this flagged?
npm lifecycle scripts like postinstall run automatically during package installation with no user interaction required. This is the #1 attack vector for malicious npm packages — attackers embed data theft or backdoor installation in these hooks. Rated CRITICAL because code executes before the developer can review it.
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