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.
git clone --depth 1 https://github.com/zircote/java-lspWrote 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/commands/zircote/java-lsp/setup)<a href="https://agentmods.dev/commands/zircote/java-lsp/setup"><img src="https://agentmods.dev/badge/commands/zircote/java-lsp/setup/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/commands/zircote/java-lsp/setup"><img src="https://agentmods.dev/badge/commands/zircote/java-lsp/setup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00008 | $0.00441 |
| Opus 5.5 | $0.00003 | $0.00176 |
| Sonnet 5.5 | $0.00002 | $0.00088 |
| Haiku 4.5 | $0.00001 | $0.00044 |
Grade C, and why
setup scanned grade C with 1 finding 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 1mo 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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
cd - && rm -rf /tmp/test-java-lsp What it actually says
Java LSP Setup
This command will configure your Java development environment with Eclipse JDT LS and essential tools.
Prerequisites Check
First, verify Java is installed (JDK 21+ recommended):
java -version
Installation Steps
1. Install Eclipse JDT LS Server
macOS (Homebrew):
brew install jdtls
Manual Installation:
- Download from: https://download.eclipse.org/jdtls/snapshots/
- Extract to a directory (e.g.,
~/.local/share/jdtls) - Add to PATH or create a wrapper script
2. Install Build Tools
Maven:
brew install maven
Gradle:
brew install gradle
3. Install Development Tools (Optional)
# Google Java Format
brew install google-java-format
# Checkstyle (usually via Maven/Gradle plugin)
4. Verify Installation
jdtls --version
mvn -version
gradle --version
5. Enable LSP in Claude Code
export ENABLE_LSP_TOOL=1
Verification
Test the LSP integration:
# Create a test project
mkdir -p /tmp/test-java-lsp/src/main/java && cd /tmp/test-java-lsp
echo 'public class Main { public static void main(String[] args) { System.out.println("Hello"); } }' > src/main/java/Main.java
# Create minimal pom.xml
cat > pom.xml << 'EOF'
<project>
<modelVersion>4.0.0</modelVersion>
<groupId>test</groupId>
<artifactId>test</artifactId>
<version>1.0</version>
</project>
EOF
# Compile
mvn compile
# Clean up
cd - && rm -rf /tmp/test-java-lsp
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.
- 1mo ago First seen · 95 lines · 8 tokens per session scan C 57ddcf86f9ac
setup is a command published in the GitHub repository zircote/java-lsp (1 stars, last pushed 2mo ago), licensed MIT. It adds 8 tokens to every session and 441 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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Interactive setup for C# LSP development environment.