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bartest5

JADX-MCP-SERVER

by bartest5

Get Class Source

get_class_source

Retrieve the Java source code for a specified class to inspect its implementation and support Android APK reverse engineering.

Instructions

Fetch the Java source of a specific class.

Input Schema

NameRequiredDescriptionDefault
class_nameYes

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

C2.8/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full behavioral burden. It does not say whether the class must be loaded, whether source is decompiled from bytecode, what happens if the class is not found, or whether any prerequisites apply.

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, front-loaded sentence with no wasted words. It states the action and resource immediately.

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?

Although the output schema covers return values and the tool is simple, the description leaves critical gaps: class name format and selection relative to many similar source/method/class siblings. For a 31-sibling toolset, this is not enough to reliably invoke the right tool.

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?

Schema description coverage is 0%, so the single class_name parameter has no structured documentation. The description refers only to a 'specific class' and does not clarify whether the name must be fully qualified, simple, or nested-class syntax.

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 states a specific verb and resource: fetch the Java source of a class. It clearly implies decompiled Java rather than bytecode/Smali, but does not explicitly distinguish itself from close siblings like fetch_current_class or get_smali_of_class.

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?

There is no guidance on when to use this tool versus fetch_current_class, get_smali_of_class, or the various get_methods/get_fields tools. The agent must infer the selection criteria from tool names alone.

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