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Eras Expert domain context: - Full Heizkostenabrechnung business model (Kunde>Objekte>Nutzeinheiten>Geraete) - Known PK/FK mappings: kunden.Kundennummer, objekte.KundenID, etc. - Correct JOIN example in SCHEMA prompt - PA knows domain hierarchy for better job formulation Iterative plan-execute in ExpertNode: - DESCRIBE queries execute first, results injected into re-plan - Re-plan uses actual column names from DESCRIBE - Eliminates "Unknown column" errors on first query Frontend: - Node inspector: per-node cards with model, tokens, progress, last event - Graph switcher buttons in top bar - Clear button in top bar - Nodes panel 300px wide - WS reconnect on 1006 (deploy) without showing login - Model info emitted on context HUD events Domain context test: 21/21 (hierarchy, JOINs, FK, PA job quality) Default graph: v4-eras Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>