# Gis Informed Workflow 4 Failure Diagnosis

> Sub-skill of gis-informed-workflow: 4. FAILURE DIAGNOSIS.

- Skill: `vamseeachanta/gis-informed-workflow-4-failure-diagnosis` (Agent Skill)
- Install (CLI): `npx skillmds@latest add vamseeachanta/gis-informed-workflow-4-failure-diagnosis`
- Raw SKILL.md: https://api.skillmd.com/api/skills/vamseeachanta/gis-informed-workflow-4-failure-diagnosis/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Productivity
- Author: vamseeachanta (https://skillmd.com/u/vamseeachanta)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/vamseeachanta/gis-informed-workflow-4-failure-diagnosis

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# 4. FAILURE DIAGNOSIS

## 4. FAILURE DIAGNOSIS


| Error | Cause | Fix |
|-------|-------|-----|
| Depth profile shows `nan` values | Route extends beyond bathymetry grid | Expand GEE export bounds; check route CRS matches raster CRS |
| Route has gaps / discontinuities | Source shapefile multi-part geometry | Explode and sort by chainage; use `gpd.explode()` |
| Metocean extraction returns all zeros | Wrong variable name in NetCDF | Inspect `ds.data_vars` |
| OrcaFlex environment YAML fails validation | Depth profile non-monotonic | Sort profile by chainage; remove duplicate distances |
| Wells fall outside lease block | CRS mismatch | Ensure both layers in same CRS before `sjoin` |
| GEE export empty | AOI too small at requested scale | Reduce scale to match AOI size |

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