Adds detectMcpToolBudget detection block in TOK scanner. Tiered severity
per project-local .mcp.json server based on toolCount:
- < 20: no finding
- 20-49: low
- 50-99: medium
- 100+: high
- null (manifest unparseable): low + "tool count unknown" message
Scoped to source==='.mcp.json' to keep findings actionable for the
audited path; plugin/user-level MCP servers are surfaced by the
manifest scanner (Step 19 / N2).
5 fixtures (mcp-budget/{14,25,60,120,unknown}-tools) use inline `tools`
arrays in .mcp.json — no node_modules needed for these tests.
Tests assert title+severity (not exact ID) since TOK IDs are sequential
per scan, not semantic per pattern.
[skip-docs] reason: v5 plan fences off README/CLAUDE.md badge updates
to Session 5; Forgejo pre-commit-docs-gate hook requires this tag on
feat commits without doc changes.
Tests: 586 → 593 (+7).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
b2407a09b3