- src/lib/assistant/prompts.ts: balanceSuggestionSchema + buildBalancePrompt
(system message leads with the grounding constraint; restricts choices to the
provided compendium candidates).
- useEncounterAdvisor hook: builds context → picks system-correct candidates →
asks the LLM (when configured) for a structured pick, validates + filters names
to the candidate set, else falls back to the deterministic buildSuggestedEncounter.
Apply adds the creatures transactionally via encountersRepo.mutate.
- EncounterTipCard in the combat tracker: leads with the detected difficulty
tendency (or the current difficulty), offers a one-click grounded suggestion
(AI or deterministic) with propose→confirm Apply.
prompts unit tests + e2e for both the deterministic apply flow and the AI path
(stubbed provider); the AI test also confirms candidate-grounding (only
shortlisted creatures survive).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
