What T-Rex did

• T-Rex produced proof for a posted P2 finding and linked it to the review comment.
• Artifacts for the P2 finding proof include a JavaScript snippet and three review logs.
• T-Rex produced a general contract validation proof showing guard rails, including scanner_file_has_targetUserId=true and scanner_file_gated=true, with targetUserId present in lines 997,1022 and forwarded to createMonitor as userId.
• The contract validation also notes the staff-gated inventory reports exactly three paths and excludes the mastra/tools/debug/debugTool.ts path.

_{Ran code and verified through T-Rex}

1. apps/server/src/services/auth/__tests__/target-user-id-reaches-the-authority.test.ts, line 262 (link)

   Keep Mixed Gating Covered

   This file marks an entire source file as authority-gated when any branch calls authorize(). As a result, debugTool.ts is omitted from the staff-gated inventory even though its create-monitor branch still forwards targetUserId after only a direct staff check. This is non-blocking, but the guard can no longer ensure that future edits to that branch remain explicitly accounted for. Track authorization per target-bearing path, or retain explicit inventory coverage for mixed-gating files.

   Knowledge Base Used: Quality and operational automation

   Artifacts

   
   

   Evidence from the check

   • Purpose-built Node script reproduces the scanner's predicates and independently checks the create-monitor branch, ending with the missed mixed-file classification.

   **[Command output from the check](https://app.greptile.com/trex/arti