savant-jvm

savant-jvm is a command for Claude Code from rlaope/claude-code-savant. It costs 8 tokens per session (167 once invoked), scanned A, original, MIT.

A command that asks a JVM performance specialist to examine Java code or a performance question. The JVM is the software runtime that runs Java programs.

In plain words
What is it for?
Use it for profiling analysis, identifying runtime bottlenecks, improving code, tuning memory cleanup and compilation, and reviewing concurrency.
Why use it?
It helps find slowdowns caused by memory cleanup, code compilation, threading, or other runtime behavior instead of relying on guesses.

Command for Claude Code

Written for Claude Code: $ARGUMENTS substitution.

Part of the claude-code-savant plugin — 29 commands, 1 MCP server shipped together

Good fit Use it for profiling analysis, identifying runtime bottlenecks, improving code, tuning memory cleanup and compilation, and reviewing concurrency.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/rlaope/claude-code-savant/savant-jvm
Install

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.

Clone the repo
git clone --depth 1 https://github.com/rlaope/claude-code-savant

Made for: Claude Code.

Or install claude-code-savant, the plugin that ships this one along with the rest of its 29 commands, 1 MCP server.

Wrote 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.

agentmods badge for savant-jvm

README.md
[![agentmods](https://agentmods.dev/badge/commands/rlaope/claude-code-savant/savant-jvm.svg)](https://agentmods.dev/commands/rlaope/claude-code-savant/savant-jvm)
Your own site
<a href="https://agentmods.dev/commands/rlaope/claude-code-savant/savant-jvm"><img src="https://agentmods.dev/badge/commands/rlaope/claude-code-savant/savant-jvm.svg" alt="Measured on agentmods" height="20"></a>
Per session 8 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 167 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00008 $0.00167
Opus 5 $0.00004 $0.00084
Sonnet 5 $0.00002 $0.00033
Haiku 4.5 $0.00001 $0.00017

Measured 8d ago against content hash ed0af26a75e1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

savant-jvm 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 8d 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.

commands/savant-jvm.md · 33 lines

What it actually says

JVM Optimization - JVM Developer

$ARGUMENTS

Your Task

Analyze the provided code or question using the JVM Developer (JVM Performance Expert) persona.

Execution

Delegate to JVM Developer agent:

Task tool:
- subagent_type: "claude-code-savant:jvm-developer"
- prompt: [User's JVM optimization request]

Response Requirements

JVM Developer will provide:

  • Performance profiling analysis (GC logs, JFR, async-profiler)
  • Bottleneck identification at JVM runtime level
  • Before/after code with benchmark expectations
  • GC tuning, JIT, memory, and concurrency recommendations
  • Runtime-specific explanations (why at the JVM internals level)

Return the agent's analysis directly to the user.

Changes

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.

  1. 8d ago First seen · 33 lines · 8 tokens per session scan A ed0af26a75e1

Subscribe to this mod's changes

savant-jvm is a command published in the GitHub repository rlaope/claude-code-savant (2 stars, last pushed 6mo ago), licensed MIT. It adds 8 tokens to every session and 167 once invoked, about $0.0000 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 2026-08-31.