# Detect Buildings

> Detect buildings in a map area using on-device vision

- Skill: `nimbusxr/detect-buildings` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add nimbusxr/detect-buildings`
- Raw SKILL.md: https://api.skillmd.com/api/skills/nimbusxr/detect-buildings/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: nimbusxr (https://skillmd.com/u/nimbusxr)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/nimbusxr/detect-buildings

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# Building Detection

Detects buildings using the on-device vision model. Places BLD-N markers
at detected locations.

When detecting within a GRG, call `grg_bounds` first to get the exact
bounds, then pass north/south/east/west to `detect_buildings`. Do NOT
compute bounds yourself — always call `grg_bounds` for GRG-scoped detection.