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andsopwn

ida-fusion-mcp

by andsopwn

decompile

Decompile a function at a given address into readable pseudocode for reverse engineering analysis.

Instructions

Decompile function to pseudocode

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
addrYesFunction address to decompile
instance_idYesTarget IDA instance ID (required)

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior2/5

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

No annotations provided, and the description does not disclose behavioral details such as whether the function must be recognized, side effects on IDA state, or failure modes. For a transformation tool, more transparency is needed.

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 sentence with no wasted words. It is front-loaded with the core action and result, making it easy to scan.

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

Completeness3/5

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

An output schema exists, so return value details are not required. However, the description omits important context like format of pseudocode, prerequisites, or limitations, which is moderate given the tool's complexity.

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

Parameters3/5

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

Schema description coverage is 100% (both 'addr' and 'instance_id' have descriptions). The description adds no additional parameter semantics beyond what the schema provides, earning the baseline score of 3.

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

Purpose5/5

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

The description clearly states the action (decompile) and result (pseudocode). Among siblings, 'decompile_to_file' suggests an alternative saving to file, so this tool is distinct. The verb+resource is specific.

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 on when to use this tool versus alternatives like 'disasm' or 'decompile_to_file'. Does not mention prerequisites (e.g., function must be analyzed) or context where decompilation fails.

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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