watchpr: only alert on mergeability lost after the baseline

Track mergeability across the whole run and decode it as a tri-state, so a PR already conflicted when watching starts is polled on instead of reported.
2026-09-26 18:45:48 +10:00
parent 0cf41409f1
commit 6988be9ff3
6 changed files with 298 additions and 51 deletions
@@ -85,7 +85,10 @@ Non-zero exit on any API error.
 Poll PRs and exit (reporting what changed) when a tracked PR **merges/closes**,
 gets a **new comment from someone other than the agent**, its **CI fails**
 (failure/error), or it **loses mergeability** (a conflict appears). Benign
-transitions — CI `pending`→`success`, the agent's own comments — are ignored.
+transitions — CI `pending`→`success`, the agent's own comments and pushes — are
+ignored, and so is any condition the PR was already in at the baseline: a PR
+that is already conflicted or already failing when watching starts keeps being
+watched.

 ```bash
 # Watch until something meaningful happens (default interval 60s)