graal
FreeNo executable scriptsNot checkedBuild, configure, and troubleshoot GraalVM Native Image applications. Use this skill for native-image CLI builds, Maven or Gradle Native Build Tools, reachabili
About this skill
Oracle Graal Skills
Use this domain to build, configure, and troubleshoot GraalVM Native Image applications with Maven, Gradle, or the CLI.
How to Use This Domain
- Start with the routing table below.
- Read only the specific Native Image file needed for the task.
- Prefer Native Build Tools for Maven or Gradle projects. Use the raw
native-imageworkflow for simple Java files or direct CLI usage.
Directory Structure
graal/
|-- SKILL.md
`-- native-image/
|-- build-native-image.md
|-- native-build-tools.md
|-- reachability-metadata.md
`-- troubleshooting.md
Category Routing
| Topic | File |
|---|---|
native-image CLI builds, options, classpath, modules, output names, binary type, optimization, URL protocols, monitoring, security |
graal/native-image/build-native-image.md |
Maven native-maven-plugin, Gradle org.graalvm.buildtools.native, build-tool tasks, plugin options, and native test routing |
graal/native-image/native-build-tools.md |
Missing reflection, JNI, resources, resource bundles, serialization, dynamic proxies, conditional metadata, and reachability-metadata.json layout |
graal/native-image/reachability-metadata.md |
| Build failures, runtime failures, missing metadata symptoms, class initialization issues, memory issues, diagnostics, Maven activation issues, and where to route fixes | graal/native-image/troubleshooting.md |
Key Starting Points
graal/native-image/build-native-image.mdgraal/native-image/native-build-tools.mdgraal/native-image/reachability-metadata.mdgraal/native-image/troubleshooting.md
Common Multi-Step Flows
| Task | Recommended Sequence |
|---|---|
| Build a Java class with Native Image | native-image/build-native-image.md |
| Configure a Maven or Gradle project for Native Image | native-image/native-build-tools.md -> native-image/build-native-image.md for flags |
| Fix missing reflection, JNI, proxy, resource, bundle, or serialization metadata | native-image/reachability-metadata.md |
| Diagnose build failures or runtime behavior differences | native-image/troubleshooting.md -> native-image/build-native-image.md -> native-image/reachability-metadata.md if metadata is involved |
Sources
- https://github.com/oracle/graal/tree/master/substratevm/skills/building-native-image
- https://github.com/oracle/graal/tree/master/substratevm/skills/build-native-image-maven
- https://github.com/oracle/graal/tree/master/substratevm/skills/build-native-image-gradle
- https://www.graalvm.org/latest/reference-manual/native-image/
Install graal in Claude Code & Claude Desktop
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Allowed tools
Tools this skill is permitted to call.
No restriction — this skill can use any tool.
Bundled files
FAQ
What does the graal skill do?
Build, configure, and troubleshoot GraalVM Native Image applications. Use this skill for native-image CLI builds, Maven or Gradle Native Build Tools, reachability metadata, and build or run time issue diagnosis.
How do I install the graal skill?
Copy the skill folder into ~/.claude/skills (the Claude Code tab above does this in one command), or install it as a plugin.
Does the graal skill run scripts?
No, this skill is instructions only (SKILL.md) with no executable scripts.
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