Lutherie Engineering Assistant
33 species with density, Janka, MOE, tonal profiles. Compare tonewoods, match species to build goals.
Poe + ChatGPTFret slotting tables, string tension per-string, saddle compensation, bridge geometry. Exact numbers, not estimates.
Poe + ChatGPTFret buzz, intonation errors, dead spots, wolf tones. Step-by-step diagnostic trees with root cause analysis.
Poe + ChatGPTCompatibility matrix (nitro, lacquer, poly, oil, shellac, wax). Cure schedules, defect diagnosis, layering rules.
Poe + ChatGPT25-step build checklists, project tracking, progress updates. Your builds persist across sessions.
ChatGPTSearch live tonewood inventory from Shelley Hardwoods, Exotic Wood Zone, and StewMac. Track your own stock.
ChatGPT| Feature | Poe (Free) | ChatGPT (Full) |
|---|---|---|
| Wood knowledge & selection | ✓ | ✓ |
| Fret / tension / saddle calculations | ✓ | ✓ |
| Diagnostics & troubleshooting | ✓ | ✓ |
| Finish chemistry | ✓ | ✓ |
| Build project tracking | — | ✓ |
| Persistent projects & specs | — | ✓ |
| Live supplier inventory search | — | ✓ |
| Personal stock management | — | ✓ |
| Image-based wood ID | — | ✓ |
| Work scheduling | — | ✓ |
# wood selection you: What wood for a warm fingerstyle acoustic top? shelley: Western Red Cedar — low density (0.32), warm fundamental... # calculations you: Fret layout for 25.5 inch scale, 22 frets shelley: Fret 1: 1.430" | Fret 12: 12.750" | Fret 22: 22.187" # diagnostics you: My guitar buzzes on the G string at the 5th fret shelley: Let me walk through this. Is the buzz only at the 5th... # finish chemistry you: Can I spray nitro over an oil finish? shelley: No. Oil prevents adhesion. Fat over Lean violated...
Run Shelley locally inside Claude Code with full tool access — 29 tools, no API limits, direct file system integration.
$ pip install mentorr $ claude mcp add mentorr -- mentorr-server ✓ mentorr added (29 tools across 4 domains)