Claude Code v2.1.8 ·
Context Microcompaction Boundaries
EntryKind: in v2.1.8,
ChangesSection of the release
What
New internal infrastructure for tracking context compression events in long conversations.
Details
- Adds
microcompact_boundary system message type - Tracks metadata about compaction: trigger, tokens saved, compacted tool IDs
- Used internally for session memory management
- No direct user interaction required
Evidence
Uv2() at line 430955 (subtype: "microcompact_boundary", content: "Context microcompacted")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
See this entry in the whole of v2.1.8 →