test-nested-grandparent

To verify the return path of nested forked skills, execute a three-layer orchestration test where L1 calls L2 and L2 calls L3. This validates that L2's return value is received by L1, not skipped, by writing intermediate and final verification files.

Nested skill return values skip parent layers due to control flow bugs in deeply nested agentic workflows, similar to GitHub Issue #17351. Testing the nested skill return path through a three-layer execution verifies whether L2 correctly returns output to L1 instead of bypassing it.

A nested skill return path in agentic systems is the execution flow where control and data return correctly through layered skill calls. It ensures that when L3 returns a value to L2, L2 processes and returns its own output to L1 without skipping intermediate parent layers.

To test if Layer 2 correctly returns output to Layer 1, orchestrate a three-layer nested execution and write intermediate verification files during execution. Checking these files confirms the return value from L2 is received by L1 rather than being skipped.

You need to test nested skill return paths when building complex agentic workflows with deeply nested forked skills. This testing is essential to ensure control flow and data pass correctly between layers, preventing bugs where returns bypass parent layers.

Debugging control flow issues in deeply nested skills relies on writing intermediate and final verification files to trace the return path. Without these files, it is difficult to validate whether L2's return value is received by L1 or incorrectly skipped.