# STS2 Bot

Terms for observing Slay the Spire 2, choosing actions, and evaluating play.

## Language

**Run**:
One game attempt, from its start to victory, death, or abandonment.
A seed describes generated content; it does not uniquely identify an attempt.

**Session**:
One period of bot operation. A run can span sessions, and a session can span runs.

**Observation**:
The game information visible at one moment. It is not the complete game state.

**Fact**:
A directly observed value or a result established from known game rules and sufficient inputs.
_Avoid_: Using this term for an unverified prediction.

**Estimate**:
A prediction that depends on assumptions or incomplete game information.
_Avoid_: Guaranteed result, proven lethal

**Decision**:
A proposed next action. A decision does not establish that the game received or applied the action.

**Action result**:
The game's response to an attempted action. Acceptance alone does not establish that the expected change occurred.

**Pending game action**:
An accepted action request that has not yet been reconciled with a fresh observation.
_Avoid_: Completed action

**Accepted toggle**:
An accepted request to change a card's selection status. It does not prove that the card is selected.

**Screen flow**:
Related game screens that form one interaction, such as opening and skipping a card reward.

**Reported run identity**:
The run identifier supplied by the game service. It identifies a reported attempt, not a seed or an atomic state snapshot.

**Combat-pile snapshot**:
The cards visible in combat piles at one observation. It can include temporary cards and omit unavailable cards.
_Avoid_: Persistent deck, complete deck

**Run deck**:
The persistent collection of cards owned during a run, distinct from temporary combat cards and combat piles.
_Avoid_: Treating all visible combat cards as the persistent deck.

**Run outcome**:
The result and progress of one game attempt. It does not establish whether each earlier decision was correct.

**Decision label**:
An assessment of one decision against a stated criterion, such as legality or an expert preference.
_Avoid_: Treating the run outcome as an optimal-action label.