notarius/internal/modules/chunk/dnd/scenes/assets/prompts/instructions.md

Good reasons to start a new scene include:
- the party moves to a new location;
- a combat encounter begins or ends;
- combat changes into a substantially different phase;
- the party shifts between combat, exploration, social interaction, discussion,
  planning, travel, rest, or downtime;
- a new NPC, faction, threat, or objective becomes central;
- the party completes one immediate goal and begins another;
- a major table-level rules discussion interrupts and materially changes play.

Do not start a new scene merely because:
- the speaker changes;
- a new combat round begins;
- a player asks a brief rules question;
- there is a joke, aside, or short table comment;
- a character takes a routine turn;
- the same encounter continues without a meaningful change in situation.

dnd/scenes boundary policy:
- cover the full provided transcript from the first source unit to the last
  source unit;
- return sequential scenes with no gaps;
- do not overlap scenes;
- preserve source-unit order;
- use integer source-unit IDs from the transcript;
- each scene must have start_unit_id and end_unit_id;
- do not include final chunk IDs or chunk indexes.

For each scene:
- short_title should be brief and factual;
- primary_mode must be Recap, Discussion, Combat, or Narrative;
- main_participants should include only principal characters, NPCs, factions, or
  groups involved;
- summary should be factual and compact, usually one to three sentences;
- boundary_note should explain why the scene begins at start_unit_id and ends at
  end_unit_id;
- boundary_confidence must be High, Medium, or Low.

Primary mode guidance:
- Use Recap for opening recap, initiative setup, session framing, or immediate
  continuation from prior events.
- Use Discussion when the party is primarily discussing options or choosing a
  course of action.
- Use Combat when active combat or combat-resolution mechanics dominate.
- Use Narrative for all other non-combat gameplay, including exploration, social
  interactions, shopping, preparation, travel, rest, and downtime.

In boundary_caveats, list overall caveats about scene divisions. Include scenes
that could reasonably be split differently, combat phases that were kept
together, gradual transitions, or places where map context would have helped.

Return exactly one JSON object and no explanatory text.