# Orcaflex YAML Gotchas Symptom

> Sub-skill of orcaflex-yaml-gotchas: Symptom (+2).

- Skill: `vamseeachanta/orcaflex-yaml-gotchas-symptom` (Agent Skill)
- Install (CLI): `npx skillmds@latest add vamseeachanta/orcaflex-yaml-gotchas-symptom`
- Raw SKILL.md: https://api.skillmd.com/api/skills/vamseeachanta/orcaflex-yaml-gotchas-symptom/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: vamseeachanta (https://skillmd.com/u/vamseeachanta)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/vamseeachanta/orcaflex-yaml-gotchas-symptom

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# Symptom (+2)

## Symptom

Semantic validator reports `NorthDirection: 0` as "extra" in modular output.


## Root Cause

Builder unconditionally emits `NorthDirection: 0` (default). Monolithic doesn't include it (OrcaFlex assumes 0).


## Fix

Only emit when non-zero:

```python
if sim.north_direction:
    general["NorthDirection"] = sim.north_direction
```