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fuzzmind

fuzzmind-frida-mcp

by fuzzmind

frida_java_deoptimize

Deoptimize Java methods in a Frida session to bypass JIT compilation and enable detailed runtime inspection.

Instructions

Call Java.deoptimizeEverything() or Java.deoptimizeBootImage().

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
targetYes
modeNoeverything
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries full burden but only states what functions are called, not the effects (e.g., whether it modifies state, requires elevated permissions, or impacts the target process). The behavioral impact is implied but not disclosed.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, concise sentence that front-loads the purpose. No extraneous words.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no output schema and 0% schema coverage, the description lacks details on return values, success/failure indicators, or synchronous behavior. It is insufficient for correct invocation without additional context.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The description does not explain parameter values or their relationship to the two methods mentioned. Schema coverage is 0%, and the description adds minimal meaning beyond the schema (e.g., 'target' and 'mode' are not mapped to 'everything' or 'bootImage').

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool calls Java.deoptimizeEverything() or Java.deoptimizeBootImage(), indicating a specific verb and resource. It is unambiguous about its purpose but does not differentiate from sibling tools like frida_java_hook_method or frida_java_backtrace.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives. There is no mention of prerequisites, context, or when not to use it.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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