remember() now resolves a stale supersedes_id to the current live head
before writing — when X has been superseded by Y, a retried call with
supersedes_id=X automatically links the new memory to Y instead of
silently dropping the supersede.
- Walk the chain from supplied supersedes_id to find the active head
- Cap the walk at depth 100 (cycle/runaway protection)
- Throw RuntimeException("Detected cycle while resolving supersede chain")
on detected cycle, BEFORE any DB write
- Throw InvalidArgumentException("Superseded memory not found") when
the original supersedes_id never existed
- deleteSupersededMemory no longer silently no-ops once the resolved
head is expected to exist
Pest coverage extended:
- Direct chain link (X exists, succeeds with X→linked)
- Retry path (X→Y, then retry on X produces Z→Y, walks chain)
- Never-existed target (graceful error)
- Synthetic X↔Y cycle (caps walk + throws, no writes leak)
Co-authored-by: Codex <noreply@openai.com>
Closes tasks.lthn.sh/view.php?id=316
dea64f4099