Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add znlgis/opengis-skills --skill opengis-utils-for-javagit clone --depth 1 https://github.com/znlgis/opengis-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/znlgis/opengis-skills/opengis-utils-for-java)<a href="https://agentmods.dev/skills/znlgis/opengis-skills/opengis-utils-for-java"><img src="https://agentmods.dev/badge/skills/znlgis/opengis-skills/opengis-utils-for-java/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/znlgis/opengis-skills/opengis-utils-for-java"><img src="https://agentmods.dev/badge/skills/znlgis/opengis-skills/opengis-utils-for-java.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00042 | $0.04174 |
| Opus 5 | $0.00021 | $0.02087 |
| Sonnet 5 | $0.00008 | $0.00835 |
| Haiku 4.5 | $0.00004 | $0.00417 |
Grade A, and why
opengis-utils-for-java scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 353 lines — stays where its author put it; the contents beside it link to each section on GitHub.
项目地址： https://github.com/znlgis/opengis-utils-for-java
官方文档： https://github.com/znlgis/opengis-utils-for-java#readme
Maven 坐标：
com.znlgis.ogu4j:ogu4j:1.0.0许可证： LGPL-2.1-or-later
概述
OGU4J (OpenGIS Utils for Java) is a unified Java GIS toolkit built on GeoTools, JTS, GDAL/OGR, and ESRI Geometry API. It provides:
- A unified layer model (
OguLayer) for reading/writing GIS data across formats - Geometry operations (60+ methods) via
GeometryUtil - Dual-engine architecture (GeoTools pure-Java & GDAL native)
- Coordinate reference system management (CGCS2000 built-in)
Java Version: 17+
Build Tool: Maven
Group ID: com.znlgis.ogu4j | Artifact ID: ogu4j | Version: 1.0.0
Project Structure
com.znlgis.ogu4j
├── datasource/ # High-level data I/O
│ ├── OguLayerUtil # ★ Primary entry point for reading/writing layers
│ └── GtTxtUtil # National land TXT format support
├── engine/ # GIS engine core
│ ├── GisEngine # Engine interface
│ ├── GisEngineFactory # Engine factory (auto-selects best engine)
│ ├── GeoToolsEngine # GeoTools implementation (pure Java, always available)
│ ├── GdalEngine # GDAL implementation (requires native GDAL)
│ ├── GeoToolsLayerReader/Writer # GeoTools format I/O
│ ├── GdalLayerReader/Writer # GDAL format I/O
│ ├── enums/ # Enumerations
│ │ ├── DataFormatType # SHP, GEOJSON, FILEGDB, POSTGIS, TXT, WKT, ESRIJSON, ARCSDE
│ │ ├── FieldDataType # INTEGER, DOUBLE, STRING, BINARY, DATE, TIME, DATETIME, LONG
│ │ ├── GeometryType # POINT, MULTIPOINT, LINESTRING, POLYGON, etc.
│ │ ├── GisEngineType # GEOTOOLS, GDAL, AUTO
│ │ └── TopologyValidationErrorType
│ ├── io/ # Reader/Writer interfaces
│ │ ├── LayerReader # read(path, layerName, attributeFilter, spatialFilterWkt)
│ │ └── LayerWriter # write(layer, path, layerName, options)
│ ├── model/
│ │ ├── layer/ # ★ Core data model
│ │ │ ├── OguLayer # Layer: name, wkid, geometryType, fields, features
│ │ │ ├── OguFeature # Feature: id, geometry (WKT), attributes
│ │ │ ├── OguField # Field definition: name, alias, dataType, length
│ │ │ ├── OguFieldValue # Field value with type conversion methods
│ │ │ ├── OguCoordinate # Coordinate point (x, y, z)
│ │ │ ├── OguFeatureFilter # Functional interface for filtering
│ │ │ └── OguLayerMetadata # Extended metadata (CRS, projection, etc.)
│ │ ├── DbConnBaseModel # PostGIS connection configuration
│ │ ├── GdbGroupModel # FileGDB structure
│ │ ├── TopologyValidationResult
│ │ └── SimpleGeometryResult
│ └── util/
│ ├── CrsUtil # Coordinate system management & transformation
│ ├── GeotoolsUtil # GeoTools feature filtering
│ ├── OgrUtil # GDAL/OGR initialization & resource management
│ ├── PostgisUtil # PostGIS connection helpers
│ ├── ShpUtil # Shapefile encoding & field name handling
│ └── GdalCmdUtil # GDAL command-line wrapper (ogrinfo)
├── geometry/
│ └── GeometryUtil # ★ 60+ geometry operation methods
├── exception/
│ ├── OguException # Base checked exception
│ ├── DataSourceException # Data source connection failures
│ ├── EngineNotSupportedException
│ ├── FormatParseException # Format parsing failures
│ ├── LayerValidationException # Unchecked (RuntimeException)
│ └── TopologyException
└── utils/
├── ZipUtil # ZIP compress/decompress
├── EncodingUtil # File encoding detection
├── SortUtil # Natural string sorting
└── NumUtil # Number formatting (remove scientific notation)
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 353 lines · 42 tokens per session scan A 8930eb3b2760
opengis-utils-for-java is a skill published in the GitHub repository znlgis/opengis-skills (61 stars, last pushed yesterday), licensed MIT. It adds 42 tokens to every session and 4,174 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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