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CompactionSummary

reference
1 min readUpdated

Kind: Interface

Source: atloria-monorepo/libs/agent-core/src/context/compaction-types.ts

Smart Compaction Types

Structured schema for model-based context compaction. The CompactionSummary is a persistent, evolving document that captures everything the agent needs to continue working after context compression.

Anchored Iterative Summarization (Factory.ai pattern):

  • First compaction: summarize full history into CompactionSummary v1
  • Subsequent compactions: merge NEW items into existing summary (delta merge)
  • Code snippets are NEVER summarized — preserved verbatim

Properties

PropertyType
sessionGoalstring
progress`{
/** Tasks/steps already completed */
completed: string[];
/** What the agent is currently working on */
inProgress: string;
/** Known remaining steps */
remaining: string[];
/** Things preventing progress */
blockers: string[];

}| |fileOperations|Array<{ path: string; action: 'created' | 'modified' | 'read' | 'deleted'; /** What was done or learned from this file */ keyDetails: string; }>| |decisions|Array<{ decision: string; rationale: string; }>| |errors|Array<{ error: string; resolved: boolean; resolution?: string; }>| |preservedCode|Array<{ file: string; snippet: string; why: string; }>| |domainState|Record<string, string>` |

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