kimi-code/FormularDefTree/nodes/root
7Sageer 462ab1ddbb fix(agent-core-v2): align undo, spine and compaction on the folded view
Spine made the stored history append-only while several paths still
assumed stored == projected:

- repair the spine tree when undo/clear truncates the history beneath
  it (new spine.truncate_repair op): clamp straddling spans, void
  truncated ones, re-anchor the epoch boundary and the observation
  cursor, so post-undo messages are never folded away and the next
  tree transition is never dropped
- estimate the folded view instead of the raw stored history for the
  context-size gauge after undo and on resume, and for 413 overflow
  heuristics; fixes spurious auto compaction after every undo
- summarize only the current spine epoch (chaining the previous
  epoch summary) instead of the full append-only history
- pause auto compaction with a warning when the compacted shape
  still exceeds the window; recalibrate on any model window change
- share the projected-estimate helper via
  IAgentContextProjectorService.estimateProjectedTokens

Also records the undo/spine/compaction semantics in FormularDefTree/.
2026-07-13 17:22:36 +08:00
..
node.md fix(agent-core-v2): align undo, spine and compaction on the folded view 2026-07-13 17:22:36 +08:00