feat: uvx detection + incident response UX improvements#40
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New rules: - MCPCFG_012: uvx/uv MCP server without version pin (HIGH). Covers the exact litellm attack vector where uvx auto-downloaded the compromised package from PyPI. - MCPCFG_013: pip install without hash verification in MCP setup (MEDIUM). Incident response improvements: - aguara check now always scans pip/uv/npx caches (was opt-in with --include-caches). Cache scanning also checks METADATA in dist-info dirs and .pth files, not just filenames. - aguara clean confirmation defaults to Y (was N). Press Enter to proceed, type n to abort. Removes friction for the common case. 189 rules, 576 tests, 0 lint issues.
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Summary
Covers the exact litellm attack vector (uvx auto-download of compromised package) and simplifies the incident response workflow.
Source: oktsec engineering spec based on Callum McMahon's analysis of the litellm compromise via uvx in Cursor MCP configs.
New rules
MCPCFG_012 is HIGH (vs MCPCFG_001/npx which is LOW) because uvx pulls entire Python packages with deep dependency trees. litellm has 300+ transitive deps. The attack surface per uvx invocation is much larger.
UX improvements
aguara checkalways scans caches - removed--include-cachesflag, caches are always scanned (uv, pip, npx). Cache scanning now also reads METADATA in dist-info dirs and checks .pth files, not just filenames.aguara cleandefaults to Y - confirmation prompt changed from[y/N]to[Y/n]. Press Enter to proceed. Reduces the workflow to 2 commands:aguara check,aguara clean.Stats
189 rules (was 187), 576 tests, 0 lint issues.
Test plan
make build && make test && make vet && make lintall pass