# BRIEFING — 2026-10-01T00:45:20Z

## Mission
Investigate Leader Aura Visual Decal Integration in `entity_renderer.js` and formulate safe, compliant patch for downstream worker.

## 🔒 My Identity
- Archetype: explorer
- Roles: investigator, analyzer, synthesizer
- Working directory: c:\Projects\FreeExile\.agents\teamwork\explorer_m3_r2_2
- Original parent: bc45a740-aa86-45b5-8706-381960281bc6 (orchestrator_1: af73d9ec-d3ff-4501-b986-47b632c5d073)
- Milestone: Milestone 3 Remediation (Iteration 2)

## 🔒 Key Constraints
- Read-only investigation — do NOT implement
- Do NOT write source code directly
- Write only to your own folder: c:\Projects\FreeExile\.agents\teamwork\explorer_m3_r2_2
- File length of entity_renderer.js must stay under 500-line hard cap (<=350 soft cap)

## Current Parent
- Conversation ID: bc45a740-aa86-45b5-8706-381960281bc6
- Updated: 2026-10-01T00:43:18Z

## Investigation State
- **Explored paths**: `ORIGINAL_REQUEST.md`, `PROJECT.md`, `reviewer_m3_2/handoff.md`, `client/webapp/js/engine/entity_renderer.js`, `client/webapp/js/engine/monster_pack_system.js`, `client/webapp/index.html`, `tools/lint/check_code_and_doc_hygiene.py`, `tests/unit/test_monster_pack_and_affixes.py`, `tests/security_fuzzing/test_pack_affixes_and_auras_adversarial.py`
- **Key findings**:
  1. `renderLeaderAuraDecal` in `monster_pack_system.js` (lines 91-119) is exported and assigned to `window.renderLeaderAuraDecal`, but has 0 call sites across the entire project.
  2. `entity_renderer.js` renders monsters in `renderEntities` (lines 113-227), computing `mPos = worldToIso(m.wx, m.wy)` and drawing soft shadow at lines 117-123.
  3. Positioning the call immediately after the monster soft shadow (line 124) before sprite drawing ensures the aura decal is drawn on the ground under the mob sprite with matching center (`screenX, screenY + 4`).
  4. Current line count of `entity_renderer.js` is 418 lines (417 per hygiene audit). Adding the 4-line patch brings it to 422 lines, safely below the 500-line Hard Cap.
- **Unexplored areas**: None for this specific scope.

## Key Decisions Made
- Formulated exact 4-line hook after monster shadow at line 124 of `entity_renderer.js`.
- Preserved strict read-only boundary; created unified diff patch `proposed_entity_renderer_aura.patch`.
- Documented testing strategy and hygiene compliance.

## Artifact Index
- DISPATCH.md — Incoming task dispatch record
- BRIEFING.md — Situational awareness working memory
- progress.md — Liveness heartbeat and milestone tracking
- proposed_entity_renderer_aura.patch — Concrete unified diff patch for Worker
- handoff.md — Complete 5-component handoff report