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description, kind
| description | kind |
|---|---|
| Package map for the conversation-condensing feature family: automatic compaction, the on-demand /compact command, and tool-output trimming. | package-group |
compaction/ — compaction capability family
English | 中文
Summary
The compaction/ group keeps long agent conversations working near the model's context limit: older history is condensed into a summary automatically as token pressure builds, on demand with /compact, oversized tool outputs can be trimmed first so there is less to condense, and images an image-capable route can no longer send are replaced with placeholders. The shipped dsh base enables the feature by default — mount the packages explicitly to tune when and how condensation happens. The token measurement that decides when to condense lives in a separate LLM-family service.
Table of Contents
Packages
Each package below provides one piece of the feature; open a package page for how to use it.
| Package | Role | ctx key |
|---|---|---|
compaction/ |
The shared condensation contract: the operations and summary format every backend and trigger use | ctx.compaction |
compaction-basic/ |
Automatic condensation of older history into a summary as token pressure builds | registers ctx.compaction |
compaction-tool-result-pruner/ |
Trims oversized tool outputs so less history needs condensing | ctx.toolResultPruner |
compaction-image-offload/ |
Replaces over-budget request images with placeholders when an image-capable route rejects a request | listens to agent/request-error |
command-compact/ |
The /compact command to condense history on demand |
registers on ctx.commands |
Related documentation
Start with the subsystem reference for the shared vocabulary, then read the two Agent Notes for the design rationale.
- Compaction subsystem reference — the condensation vocabulary, results, and service behavior.
- historical Compaction capability-seam Agent Note — how the family is split and why it depends on session and LLM vocabulary.
- Queued manual compaction reference — how on-demand
/compactserializes against running turns. - Capability seams — the Service Definition / Service Provider / Consumer split this family follows.
Dev Note
Working context for maintainers — click to expand
None.