home / skills / a5c-ai / babysitter / gis-spatial-analyzer

gis-spatial-analyzer skill

/plugins/babysitter/skills/babysit/process/specializations/domains/science/civil-engineering/skills/gis-spatial-analyzer

This skill helps perform GIS spatial analysis for watershed delineation, floodplain mapping, and site constraints to support informed decisions.

npx playbooks add skill a5c-ai/babysitter --skill gis-spatial-analyzer

Review the files below or copy the command above to add this skill to your agents.

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SKILL.md

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---
name: gis-spatial-analyzer
description: GIS spatial analysis skill for watershed delineation, floodplain mapping, and site analysis
allowed-tools:
  - Read
  - Write
  - Glob
  - Grep
  - Edit
  - Bash
metadata:
  specialization: civil-engineering
  domain: science
  category: GIS
  skill-id: CIV-SK-034
---

# GIS Spatial Analyzer Skill

## Purpose

The GIS Spatial Analyzer Skill performs spatial analysis including watershed delineation, floodplain mapping, buffer analysis, and land use classification.

## Capabilities

- Watershed delineation
- Floodplain mapping
- Buffer analysis
- Slope analysis
- Land use classification
- Right-of-way analysis
- Viewshed analysis
- Proximity analysis

## Usage Guidelines

### When to Use
- Analyzing site constraints
- Delineating watersheds
- Mapping flood zones
- Evaluating land use

### Prerequisites
- GIS data available
- DEM for terrain analysis
- Boundary data defined
- Analysis criteria established

### Best Practices
- Use appropriate resolution
- Verify data sources
- Document methodology
- Validate results

## Process Integration

This skill integrates with:
- Flood Analysis and Mitigation
- Stormwater Management Design
- Highway Geometric Design

## Configuration

```yaml
gis-spatial-analyzer:
  analysis-types:
    - watershed
    - flood
    - buffer
    - slope
    - land-use
  data-sources:
    - DEM
    - parcel
    - FEMA
    - NLCD
```

## Output Artifacts

- Watershed maps
- Floodplain delineations
- Buffer zones
- Analysis reports

Overview

This skill performs GIS spatial analysis focused on watershed delineation, floodplain mapping, and site-level analysis. It produces actionable spatial outputs—watershed boundaries, flood extents, buffer zones, slope and viewshed layers, and land-use classifications. The skill is designed for integration into engineering, planning, and mitigation workflows to accelerate decision-making and reporting.

How this skill works

The skill consumes GIS inputs (DEM, parcel and boundary layers, FEMA flood data, NLCD or other land-cover) and runs deterministic spatial operations: flow routing and watershed delineation, terrain-derived slope and aspect, floodplain overlay and delineation, buffer and proximity calculations, and viewshed analysis. Results are validated against supplied criteria, packaged as map layers and a concise analysis report, and returned in standard GIS formats for downstream use.

When to use it

Delineating catchments and sub-watersheds for hydrologic modeling
Mapping regulatory or modelled floodplains for mitigation planning
Assessing site constraints for development, right-of-way, or infrastructure
Generating slopes, aspects, and viewsheds for design and safety review
Producing buffers and proximity analyses for environmental or zoning checks

Best practices

Provide a high-resolution DEM matched to the study extent for accurate terrain-derived outputs
Verify and harmonize datum, projection, and source metadata across all input layers
Define clear analysis criteria (thresholds, buffer distances, classification rules) before running
Document data sources and processing steps; retain intermediate layers for QA
Validate mapped outputs against known control features or local flood records where available

Example use cases

Stormwater design: delineate upstream contributing areas and produce drainage maps for runoff sizing
Flood mitigation: overlay FEMA maps with local DEM-derived inundation to refine floodplain limits
Road corridor planning: perform right-of-way buffers, slope checks, and viewshed assessments
Site feasibility: combine land-use classification, proximity to constraints, and slope analysis for site selection
Environmental review: map habitat buffers, runoff pathways, and land-cover change impacts

FAQ

What input data do I need?

At minimum provide a DEM and boundary or parcel layers. Add FEMA flood layers and land-cover (NLCD) for flood and land-use workflows.

What formats are returned?

Outputs are delivered as standard GIS formats (GeoJSON, Shapefile, or common raster formats) plus a human-readable analysis report.

How is accuracy controlled?

Accuracy depends on input resolution and source quality; use higher-resolution DEMs, verify projections, and validate outputs against ground truth where possible.