---
model: gpt-5.6-sol
provider: openai
service: opencode
timestamp: 2026-07-22T00:13:58Z
git_ref: 16f3cd6f
diff_cmd: git diff HEAD~1..HEAD
---

> `git diff HEAD~1..HEAD -- piker/tsp/_history.py`

Removed redundant completion events whose consumers waited only after
their owning nurseries had joined. Added empty provider-frame handling
before timestamp endpoint indexing so provider exhaustion exits cleanly.

> `git diff HEAD~1..HEAD -- tests/test_history_backfill.py`

Added bounded, actor-free regressions for `DataUnavailable` and empty
provider-frame completion.

Verification generated with the patch:

`timeout -k 5 60 python -m pytest -q tests/test_history_backfill.py`

Result: 2 passed.
