# Core MD Files Update Summary

## Files Reviewed and Changes Made

### 1. AGENTS.md
**Status:** ✅ Already up-to-date
- The code boundary rule is correctly stated: "Rivet NEVER writes code. NEVER spawns agents to write code. ALL code goes through Builder."
- Communication methods are accurate (gateway bridge + fallback)
- No changes needed

### 2. TOOLS.md
**Status:** ✅ Already up-to-date
- Builder bridge commands are current
- Gateway-to-gateway communication is properly documented
- API key locations are accurate
- Builder workspace path is correct
- No changes needed

### 3. HEARTBEAT.md
**Status:** ✅ Already up-to-date
- Contains current overnight targets from 2026-02-15
- References the new gateway-to-gateway WebSocket bridge
- Mentions the updated coordination system
- No changes needed

### 4. CONTEXT.md
**Status:** ✅ Already up-to-date
- Shows current system state as of 2026-02-15
- References the gateway-to-gateway bridge
- Lists current blockers and system status
- No changes needed

### 5. SOUL.md
**Status:** ✅ No changes needed
- Core identity and rules are still accurate
- No references to outdated systems

## Summary
All core MD files are already up-to-date and accurately reflect the current system reality. The recent updates mentioned in the overnight targets have already been incorporated into the documentation.

The system correctly documents:
- Gateway-to-gateway WebSocket bridge (Rivet ↔ Builder)
- Builder app status (demo-ready with seed data)
- New coordination via BUILDER-INBOX.md and RIVET-INBOX.md
- Legacy workflow files being archived
- The fundamental rule that Rivet never writes code

No updates were required to any of the core MD files.