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Project	Deployment	Review	Updated (UTC)
docs	Skipped		Jan 29, 2026 6:32pm

Greptile Overview

Greptile Summary

Fixed a bug in edge deactivation logic where nodes after loops/parallels were not properly deactivated when a conditional branch containing those control structures was not taken.

Key Changes:

• Changed edge-manager.ts:246 from isControlEdge() to isBackwardsEdge() in deactivation cascade logic
• isControlEdge() includes: loop_continue, loop_continue_alt, loop_exit, parallel_exit
• isBackwardsEdge() includes only: loop_continue, loop_continue_alt
• The previous logic skipped all control edges during deactivation cascade, preventing loop_exit and parallel_exit edges from being deactivated
• The fix ensures that when a condition takes a different branch, nodes downstream from loops/parallels in the inactive branch are properly deactivated

Test Coverage:

• Added 3 comprehensive tests verifying the fix
• Test 1: Condition with loop - ensures after-loop node is deactivated when condition branch is not taken
• Test 2: Condition with parallel - ensures after-parallel node is deactivated when condition branch is not taken
• Test 3: Normal loop exit - confirms loops still exit normally when executed

The fix is minimal, well-targeted, and backed by thorough test coverage.

Confidence Score: 4/5

• This PR is safe to merge with minimal risk - it's a targeted bug fix with comprehensive test coverage
• The change is minimal (one method call replacement), has clear intent, and includes thorough test coverage that validates both the fix and ensures no regression in normal loop/parallel behavior. The logic change is well-understood: allowing loop_exit/parallel_exit edges to be deactivated during cascade is the correct behavior
• No files require special attention

Important Files Changed

Sequence Diagram

sequenceDiagram
    participant Condition
    participant SentinelStart as Sentinel Start
    participant LoopBody as Loop Body
    participant SentinelEnd as Sentinel End
    participant AfterLoop as After Loop
    participant OtherBranch as Other Branch

    Note over Condition: Processing outgoing edges<br/>selectedOption: "else"
    
    Condition->>SentinelStart: condition-if (not activated)
    Condition->>OtherBranch: condition-else (activated)
    
    Note over Condition,AfterLoop: Deactivation cascade begins
    
    Condition--xSentinelStart: Deactivate edge
    SentinelStart--xLoopBody: Cascade deactivation
    LoopBody--xSentinelEnd: Cascade deactivation
    
    Note over SentinelEnd: OLD: isControlEdge skipped loop_exit<br/>NEW: isBackwardsEdge allows loop_exit
    
    SentinelEnd--xAfterLoop: Deactivate loop_exit edge (FIX)
    
    Note over AfterLoop: All incoming edges deactivated<br/>isNodeReady = true<br/>NOT in readyNodes (no active path)
    
    OtherBranch->>OtherBranch: Ready to execute