# BRIEFING — 2026-10-01T00:49:50Z

## Mission
Conduct an in-depth survey of the database and progression schemas for Level 1-100 Piecewise Exponential EXP Curve and Database Seeder requirements in FreeExile.

## 🔒 My Identity
- Archetype: spec_miner
- Roles: teamwork_preview_spec_miner, specification miner
- Working directory: c:\Projects\FreeExile\.agents\teamwork\spec_miner_survey_exp_1
- Original parent: 6f4a2aa2-4315-4660-8cb7-8352a7220c95 (orchestrator_4)
- Milestone: Survey EXP Curve & Database Schema Requirements

## 🔒 Key Constraints
- Do NOT modify any source code files — read-only exploratory spec miner
- Adhere strictly to GEMINI.md and docs/standards/ENGINEERING_STANDARDS_2026.md
- Report findings using features discovered and edge cases tables
- Send message to parent upon completion

## Current Parent
- Conversation ID: 6f4a2aa2-4315-4660-8cb7-8352a7220c95
- Updated: 2026-10-01T00:49:50Z

## Task Summary
- **What to build**: Survey and specification mining for Level 1-100 Piecewise Exponential EXP Curve and progression benchmark schema
- **Success criteria**: Comprehensive report.md and handoff.md detailing data/game_design_matrix.db schema, seeder logic, service querying, server & client EXP/level representation, schema delta, and milestone feature specs
- **Interface contracts**: c:\Projects\FreeExile\.agents\teamwork\ORIGINAL_REQUEST.md (§ 2026-10-01T00:40:44Z), GEMINI.md
- **Code layout**: Read-only inspection of data/, server/world/, server/models/, client/webapp/

## Key Decisions Made
- Confirmed `target_exp` must represent cumulative lifetime EXP to maintain strict monotonicity check in `game_design_matrix_service.py:240-248`.
- Formulated 7-phase piecewise exponential curve: Lvl 1-20 occupies 0.0217% (<0.1%) of total EXP, while Lvl 99->100 delta represents 35.0% of 1->99 and 25.93% of lifetime EXP.
- Added 6 schema columns to `progression_benchmarks`: `exp_to_next_level`, `cumulative_exp`, `death_penalty_ratio`, `level_gap_safe_range`, `level_gap_penalty_exp`, `monster_benchmark_exp`.
- Verified via Monte-Carlo simulation that a 2.0% death rate/map reduces 90-day Level 100 completion probability to 0.00%.

## Artifact Index
- DISPATCH.md — Initial dispatch assignment
- BRIEFING.md — Working memory and context
- progress.md — Liveness heartbeat and step tracking
- report.md — Comprehensive findings and feature specifications
- handoff.md — 5-component handoff report for parent orchestrator