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Project	Deployment	Actions	Updated (UTC)
docs	Skipped		Jul 23, 2026 3:11am

PR Summary

Low Risk
Localized autolayout positioning change with targeted tests; no auth, data, or API surface impact.

Overview
Fixes workflow auto-layout where parallel branches swapped rows between layers, causing crisscrossing edges. Overlap handling used to run once over the whole graph after every layer was placed, so tied Y values were re-sorted per layer by block insertion order.

Overlap resolution now runs inside the per-layer loop via resolveLayerOverlaps: each layer gets a single sort-and-push-down pass before the next layer reads predecessor Y positions, so a branch keeps the same row down the graph. The old whole-graph retry loop (up to MAX_OVERLAP_ITERATIONS) and its import from core.ts are removed.

Adds core.test.ts regression coverage for stable row order under interleaved insertion and for no vertical overlaps within a layer.

^{Reviewed by Cursor Bugbot for commit d71e6ba. Bugbot is set up for automated code reviews on this repo. Configure here.}

Greptile Summary

This PR keeps parallel autolayout branches in stable rows across layers. The main changes are:

• Resolves vertical overlaps immediately after positioning each layer.
• Replaces the whole-graph retry loop with one sorted push-down pass per layer.
• Adds tests for stable branch ordering and same-layer overlap prevention.

Confidence Score: 5/5

This looks safe to merge.

• The forward pass uses each node's updated position, so cascading same-layer overlaps are resolved.
• Each successor is positioned only after its predecessor layer has been resolved.
• No blocking issues were found in the changed code.

Important Files Changed

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
  A[Assign graph layers] --> B[Position current layer]
  B --> C[Sort nodes by Y]
  C --> D[Push overlapping nodes down]
  D --> E{More layers?}
  E -- Yes --> F[Derive successor Y from resolved predecessors]
  F --> B
  E -- No --> G[Normalize positions]

_{Reviews (1): Last reviewed commit: "fix(autolayout): keep branches in stable..." | Re-trigger Greptile}