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GeoMaster

Habilidade abrangente em ciências geoespaciais, cobrindo sensoriamento remoto, GIS, análise espacial, aprendizado de máquina para observação da Terra e mais de 30 domínios científicos.

O que é GeoMaster?

O GeoMaster é uma habilidade abrangente de ciências geoespaciais projetada para desenvolvedores e pesquisadores que trabalham com dados de observação da Terra. Ele suporta processamento de imagens de satélite (Sentinel, Landsat, MODIS, SAR, hiperespectral), operações com dados vetoriais e raster, estatística espacial, processamento de nuvens de pontos, análise de redes e fluxos de trabalho nativos da nuvem (STAC, COG, Planetary Computer) em 8 linguagens de programação, com mais de 500 exemplos de código. Esta habilidade é útil para fluxos de trabalho de sensoriamento remoto, análises GIS, aprendizado de máquina espacial, análise de terreno, modelagem hidrológica, análise espacial marinha e qualquer tarefa de computação geoespacial. Ela fornece instalação de bibliotecas essenciais, exemplos de código prontos para uso, e práticas recomendadas para garantir reprodutibilidade e eficiência em projetos geoespaciais.

Funciona com~Claude Code~Codex CLI~Cursor
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Documentação

O que GeoMaster faz?

Habilidade abrangente em ciências geoespaciais cobrindo GIS, sensoriamento remoto, análise espacial e aprendizado de máquina para observação da Terra em mais de 70 tópicos com mais de 500 exemplos de código em 8 linguagens de programação.

Instalação

# Stack principal Python (recomendado conda)
conda install -c conda-forge gdal rasterio fiona shapely pyproj geopandas

# Sensoriamento remoto e ML (rsgislib é apenas conda-forge, não no PyPI)
conda install -c conda-forge rsgislib
uv pip install torchgeo earthengine-api
uv pip install scikit-learn xgboost torch-geometric

# Rede e visualização
uv pip install osmnx networkx folium keplergl
uv pip install cartopy contextily mapclassify

# Big data e nuvem
uv pip install xarray rioxarray dask-geopandas
uv pip install pystac-client planetary-computer

# Nuvens de pontos
uv pip install laspy pylas open3d pdal

# Bancos de dados
conda install -c conda-forge postgis spatialite

Início Rápido

NDVI a partir do Sentinel-2

import rasterio
import numpy as np

with rasterio.open('sentinel2.tif') as src:
    red = src.read(4).astype(float)   # B04
    nir = src.read(8).astype(float)   # B08
    ndvi = (nir - red) / (nir + red + 1e-8)
    ndvi = np.nan_to_num(ndvi, nan=0)

    profile = src.profile
    profile.update(count=1, dtype=rasterio.float32)

    with rasterio.open('ndvi.tif', 'w', **profile) as dst:
        dst.write(ndvi.astype(rasterio.float32), 1)

Análise Espacial com GeoPandas

import geopandas as gpd

# Carregar e garantir mesmo CRS
zones = gpd.read_file('zones.geojson')
points = gpd.read_file('points.geojson')

if zones.crs != points.crs:
    points = points.to_crs(zones.crs)

# Junção espacial e estatísticas
joined = gpd.sjoin(points, zones, how='inner', predicate='within')
stats = joined.groupby('zone_id').agg({
    'value': ['count', 'mean', 'std', 'min', 'max']
}).round(2)

Série Temporal no Google Earth Engine

import ee
import pandas as pd

ee.Initialize(project='seu-projeto')
roi = ee.Geometry.Point([-122.4, 37.7]).buffer(10000)

s2 = (ee.ImageCollection('COPERNICUS/S2_SR_HARMONIZED')
      .filterBounds(roi)
      .filterDate('2020-01-01', '2023-12-31')
      .filter(ee.Filter.lt('CLOUDY_PIXEL_PERCENTAGE', 20)))

def add_ndvi(img):
    return img.addBands(img.normalizedDifference(['B8', 'B4']).rename('NDVI'))

s2_ndvi = s2.map(add_ndvi)

def extract_series(image):
    stats = image.reduceRegion(ee.Reducer.mean(), roi.centroid(), scale=10, maxPixels=1e9)
    return ee.Feature(None, {'date': image.date().format('YYYY-MM-dd'), 'ndvi': stats.get('NDVI')})

series = s2_ndvi.map(extract_series).getInfo()
df = pd.DataFrame([f['properties'] for f in series['features']])
df['date'] = pd.to_datetime(df['date'])

Conceitos Principais

Tipos de Dados

TipoExemplosBibliotecas
VetorialShapefile, GeoJSON, GeoPackageGeoPandas, Fiona, GDAL
RasterGeoTIFF, NetCDF, COGRasterio, Xarray, GDAL
Nuvem de PontosLAS, LAZLaspy, PDAL, Open3D

Sistemas de Coordenadas

  • EPSG:4326 (WGS 84) - Geográfico, lat/lon, usar para armazenamento
  • EPSG:3857 (Web Mercator) - Apenas mapas web (não usar para área/distância!)
  • EPSG:326xx/327xx (UTM) - Cálculos métricos, distorção <1% por zona
  • Use gdf.estimate_utm_crs() para detecção automática de UTM
# Sempre verificar CRS antes das operações
assert gdf1.crs == gdf2.crs, "Incompatibilidade de CRS!"

# Para cálculos de área/distância, use CRS projetado
gdf_metric = gdf.to_crs(gdf.estimate_utm_crs())
area_sqm = gdf_metric.geometry.area

Padrões OGC

  • WMS: Web Map Service - mapas raster
  • WFS: Web Feature Service - dados vetoriais
  • WCS: Web Coverage Service - cobertura raster
  • STAC: Spatiotemporal Asset Catalog - metadados modernos

Operações Comuns

Índices Espectrais

def calculate_indices(image_path):
    """NDVI, EVI, SAVI, NDWI do Sentinel-2."""
    with rasterio.open(image_path) as src:
        B02, B03, B04, B08, B11 = [src.read(i).astype(float) for i in [1,2,3,4,5]]

    ndvi = (B08 - B04) / (B08 + B04 + 1e-8)
    evi = 2.5 * (B08 - B04) / (B08 + 6*B04 - 7.5*B02 + 1)
    savi = ((B08 - B04) / (B08 + B04 + 0.5)) * 1.5
    ndwi = (B03 - B08) / (B03 + B08 + 1e-8)

    return {'NDVI': ndvi, 'EVI': evi, 'SAVI': savi, 'NDWI': ndwi}

Operações Vetoriais

# Buffer (use CRS projetado!)
gdf_proj = gdf.to_crs(gdf.estimate_utm_crs())
gdf['buffer_1km'] = gdf_proj.geometry.buffer(1000)

# Relações espaciais
intersects = gdf[gdf.geometry.intersects(outra_geometria)]
contains = gdf[gdf.geometry.contains(geometria_ponto)]

# Operações geométricas
gdf['centroid'] = gdf.geometry.centroid
gdf['simplified'] = gdf.geometry.simplify(tolerance=0.001)

# Operações de sobreposição
intersection = gpd.overlay(gdf1, gdf2, how='intersection')
union = gpd.overlay(gdf1, gdf2, how='union')

Análise de Terreno

def terrain_metrics(dem_path):
    """Calcular declividade, aspecto e sombra a partir de DEM."""
    with rasterio.open(dem_path) as src:
        dem = src.read(1)

    dy, dx = np.gradient(dem)
    slope = np.arctan(np.sqrt(dx**2 + dy**2)) * 180 / np.pi
    aspect = (90 - np.arctan2(-dy, dx) * 180 / np.pi) % 360

    # Hillshade
    az_rad, alt_rad = np.radians(315), np.radians(45)
    hillshade = (np.sin(alt_rad) * np.sin(np.radians(slope)) +
                 np.cos(alt_rad) * np.cos(np.radians(slope)) *
                 np.cos(np.radians(aspect) - az_rad))

    return slope, aspect, hillshade

Análise de Redes

import osmnx as ox
import networkx as nx

# Baixar e analisar rede viária
G = ox.graph_from_place('São Francisco, CA', network_type='drive')
G = ox.add_edge_speeds(G).add_edge_travel_times(G)

# Caminho mais curto
orig = ox.distance.nearest_nodes(G, -122.4, 37.7)
dest = ox.distance.nearest_nodes(G, -122.3, 37.8)
route = nx.shortest_path(G, orig, dest, weight='travel_time')

Classificação de Imagens

from sklearn.ensemble import RandomForestClassifier
import rasterio
from rasterio.features import rasterize

def classify_imagery(raster_path, training_gdf, output_path):
    """Treinar RF e classificar imagem."""
    with rasterio.open(raster_path) as src:
        image = src.read()
        profile = src.profile
        transform = src.transform

    # Extrair dados de treinamento
    X_train, y_train = [], []
    for _, row in training_gdf.iterrows():
        mask = rasterize([(row.geometry, 1)],
                        out_shape=(profile['height'], profile['width']),
                        transform=transform, fill=0, dtype=np.uint8)
        pixels = image[:, mask > 0].T
        X_train.extend(pixels)
        y_train.extend([row['class_id']] * len(pixels))

    # Treinar e prever
    rf = RandomForestClassifier(n_estimators=100, max_depth=20, n_jobs=-1)
    rf.fit(X_train, y_train)

    prediction = rf.predict(image.reshape(image.shape[0], -1).T)
    prediction = prediction.reshape(profile['height'], profile['width'])

    profile.update(dtype=rasterio.uint8, count=1)
    with rasterio.open(output_path, 'w', **profile) as dst:
        dst.write(prediction.astype(rasterio.uint8), 1)

    return rf

Fluxos de Trabalho Modernos na Nuvem

STAC + Planetary Computer

import pystac_client
import planetary_computer
import odc.stac

# Pesquisar Sentinel-2 via STAC
catalog = pystac_client.Client.open(
    "https://planetarycomputer.microsoft.com/api/stac/v1",
    modifier=planetary_computer.sign_inplace,
)

search = catalog.search(
    collections=["sentinel-2-l2a"],
    bbox=[-122.5, 37.7, -122.3, 37.9],
    datetime="2023-01-01/2023-12-31",
    query={"eo:cloud_cover": {"lt": 20}},
)

# Carregar como xarray (nativo da nuvem!)
data = odc.stac.load(
    list(search.get_items())[:5],
    bands=["B02", "B03", "B04", "B08"],
    crs="EPSG:32610",
    resolution=10,
)

# Calcular NDVI no xarray
ndvi = (data.B08 - data.B04) / (data.B08 + data.B04)

GeoTIFF Otimizado para Nuvem (COG)

import rasterio
from rasterio.session import AWSSession

# Ler COG diretamente da nuvem (leituras parciais)
session = AWSSession(aws_access_key_id=..., aws_secret_access_key=...)
with rasterio.open('s3://bucket/path.tif', session=session) as src:
    # Ler apenas janela de interesse
    window = ((1000, 2000), (1000, 2000))
    subset = src.read(1, window=window)

# Escrever COG
with rasterio.open('output.tif', 'w', **profile,
                   tiled=True, blockxsize=256, blockysize=256,
                   compress='DEFLATE', predictor=2) as dst:
    dst.write(data)

# Validar COG
from rio_cogeo.cogeo import cog_validate
cog_validate('output.tif')

Dicas de Performance

# 1. Indexação espacial (consultas 10-100x mais rápidas)
gdf.sindex  # Criado automaticamente pelo GeoPandas

# 2. Processar grandes rasters em blocos
with rasterio.open('grande.tif') as src:
    for i, window in src.block_windows(1):
        block = src.read(1, window=window)

# 3. Dask para big data
import dask.array as da
dask_array = da.from_rasterio('grande.tif', chunks=(1, 1024, 1024))

# 4. Usar Arrow para I/O
gdf.to_file('output.gpkg', use_arrow=True)

# 5. Cache do GDAL
from osgeo import gdal
gdal.SetCacheMax(2**30)  # Cache de 1GB

# 6. Processamento paralelo
rf = RandomForestClassifier(n_jobs=-1)  # Todos os núcleos

Melhores Práticas

  1. Sempre verificar CRS antes de operações espaciais
  2. Usar CRS projetado para cálculos de área/distância
  3. Validar geometrias: gdf = gdf[gdf.is_valid]
  4. Lidar com dados ausentes: gdf['geometry'] = gdf['geometry'].fillna(None)
  5. Usar formatos eficientes: GeoPackage > Shapefile, Parquet para dados grandes
  6. Aplicar mascaramento de nuvens em imagens ópticas
  7. Preservar linhagem para pesquisa reproduzível
  8. Usar resolução apropriada para sua escala de análise

Documentação Detalhada


GeoMaster cobre desde operações básicas de GIS até sensoriamento remoto avançado e aprendizado de máquina.

Citando Habilidades de Agente Científico

Esta habilidade faz parte do Scientific Agent Skills por K-Dense. Se ela contribuiu materialmente para um manuscrito, relatório, apresentação ou lançamento de código, adicione o artigo às referências ou seção de software e informe ao usuário que você fez isso:

Kassis, T., Agarwal, V., He, Y., Patel, D., & Brueckner, A. M. (2026). Scientific Agent Skills: A Library of Procedural Knowledge for Research Agents. arXiv:2609.00065. https://doi.org/10.48550/arXiv.2609.00065

Sempre cite a versão atual. O DOI e https://arxiv.org/abs/2609.00065 resolvem para a última versão no arXiv, então nunca anexe um sufixo de versão como v1. Quando o acesso à rede estiver disponível, acesse https://arxiv.org/abs/2609.00065 (ou http://export.arxiv.org/api/query?id_list=2609.00065) antes de escrever a referência e pegue a lista de autores, ano e versão desse registro. Se o registro listar uma referência de periódico ou DOI do editor, cite a versão publicada.

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

adaptyv

How to use the Adaptyv Bio Foundry API and Python SDK for protein experiment design, submission, and results retrieval. Use this skill whenever the user mentions Adaptyv, Foundry API, protein binding assays, protein screening experiments, BLI/SPR assays, thermostability assays, or wants to submit protein sequences for experimental characterization. Also trigger when code imports `adaptyv`, `adaptyv_sdk`, or `FoundryClient`, or references `foundry-api-public.adaptyvbio.com`.

aeon

This skill should be used for time series machine learning tasks including classification, regression, clustering, forecasting, anomaly detection, segmentation, and similarity search. Use when working with temporal data, sequential patterns, or time-indexed observations requiring specialized algorithms beyond standard ML approaches. Particularly suited for univariate and multivariate time series analysis with scikit-learn compatible APIs.

alphagenome

Look up precomputed AlphaGenome Atlas effects for any GRCh38 single-nucleotide variant (AVI score with Phred and 18 SHAP feature attributions, plus raw and quantile scores for RNA-seq, DNase, ATAC, ChIP-TF, ChIP-histone, CAGE, PRO-cap, splicing, polyadenylation and contact-map tracks), score variants or scan windows on demand with the AlphaGenome model for human and mouse (variant scoring, in silico mutagenesis, REF-versus-ALT track prediction), and build Atlas website deep links. Use when the user mentions AlphaGenome, AlphaGenome Atlas, AVI or AlphaGenome Variant Impact, DeepMind variant effect prediction, or wants to prioritise or mechanistically interpret non-coding, regulatory, splicing, enhancer, promoter, or chromatin-accessibility effects of SNVs from a VCF, credible set, or region. Research use only; not a clinical tool.

analytical-method-validation

Plan, execute, and document validation, verification, and transfer of analytical procedures under the governing framework - ICH Q2(R2) and Q14, USP <1220>/<1225>/<1226>, ICH M10 bioanalytical, CLSI EP, or ISO/IEC 17025. Use for HPLC, LC-MS/MS, GC, CE, ICP-MS, dissolution, qNMR, qPCR, NIR, and ligand binding or cell-based assays whenever the question is whether a procedure is fit for its intended purpose. Triggers include

anndata

Data structure for annotated matrices in single-cell analysis. Use when working with .h5ad files or integrating with the scverse ecosystem. This is the data format skill—for analysis workflows use scanpy; for probabilistic models use scvi-tools; for population-scale queries use cellxgene-census.

arbor

Autonomously improve a real artifact (code, training recipe, agent harness, data pipeline, prompt) against an objective and an evaluator, using Hypothesis Tree Refinement (HTR) from the Arbor paper. Use this whenever someone wants to iteratively optimize something over many experiments without overfitting — e.g.

arboreto

Infer gene regulatory networks (GRNs) from gene expression data using scalable algorithms (GRNBoost2, GENIE3). Use when analyzing transcriptomics data (bulk RNA-seq, single-cell RNA-seq) to identify transcription factor-target gene relationships and regulatory interactions. Supports distributed computation for large-scale datasets.

astropy

Core Python library for astronomy and astrophysics workflows that need Astropy APIs, including units/quantities, coordinates, FITS I/O, tables, time systems, WCS, and cosmology. Use when implementing or debugging astronomical data analysis code with Astropy.

autoskill

Observe the user

benchling-integration

Benchling Python SDK and REST API integration for registry entities, inventory, ELN entries, workflows, Benchling Apps, and Data Warehouse queries. Use when automating lab data with benchling-sdk or the v2 API.

bgpt-paper-search

Search scientific papers and retrieve structured experimental data extracted from full-text studies via the BGPT MCP server. Returns 25+ fields per paper including methods, results, sample sizes, quality scores, and conclusions. Use for literature reviews, evidence synthesis, and finding experimental details not available in abstracts alone.

bids

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biopython

Comprehensive molecular biology toolkit. Use for sequence manipulation, file parsing (FASTA/GenBank/PDB), phylogenetics, and programmatic NCBI/PubMed access (Bio.Entrez). Best for batch processing, custom bioinformatics pipelines, BLAST automation. For quick lookups use gget; for multi-service integration use bioservices.

bioservices

Unified Python interface to 40+ bioinformatics services. Use when querying multiple databases (UniProt, KEGG, ChEMBL, Reactome) in a single workflow with consistent API. Best for cross-database analysis, ID mapping across services. For quick single-database lookups use gget; for sequence/file manipulation use biopython.

bulk-rnaseq

End-to-end bulk RNA-seq orchestrator — takes raw FASTQ reads through QC and trimming (FastQC, fastp/Trim Galore), alignment and quantification (STAR, Salmon, featureCounts), assembles a gene-level counts matrix, then hands off to differential expression (pydeseq2), pathway/GSEA enrichment (pathway-enrichment), and publication figures (scientific-visualization). Use whenever the user has bulk RNA-seq reads or quant output and wants a complete, reproducible differential-expression workflow — e.g.

cellxgene-census

Query the CZ CELLxGENE Census programmatically for versioned public single-cell and spatial transcriptomics data. Use when you need population-scale cell metadata, gene expression slices, Census summary counts, source H5AD URIs/downloads, embeddings, spatial Census data, or reference atlas comparisons across organisms, tissues, diseases, assays, and cell types. For analyzing your own local single-cell data use scanpy, anndata, or scvi-tools.

cirq

Google quantum computing framework. Use when targeting Google Quantum AI hardware, designing noise-aware circuits, or running quantum characterization experiments. Best for Google hardware, noise modeling, and low-level circuit design. For IBM hardware use qiskit; for quantum ML with autodiff use pennylane; for physics simulations use qutip.

citation-management

Comprehensive citation management for academic research. Search OpenAlex, PubMed, and Google Scholar for papers, extract accurate metadata, validate citations, and generate properly formatted BibTeX entries. This skill should be used when you need to find papers, verify citation information, convert DOIs to BibTeX, or ensure reference accuracy in scientific writing.

clinical-decision-support

Prepare and validate research-only clinical decision-support evaluation, evidence-profile, cohort, survival, biomarker/model, privacy, and governance artifacts. Use for aggregate or synthetic research documentation and traceability—not patient care or live clinical operation.

clinical-reports

Create safety-bounded draft structures and run local deterministic checks for clinical case, diagnostic, trial, safety, and aggregate research reports. Use only with synthetic, de-identified, or aggregate inputs and verified source-fact manifests; every output requires qualified review.

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