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fuzzmind-frida-mcp

by fuzzmind

frida_enumerate_malloc_ranges

List malloc heap ranges on a target process, filtered by memory protection (default rw-).

Instructions

Enumerate malloc heap ranges filtered by memory protection.

target: process name or pid (string). filter: protection string filter (default 'rw-'). Frida returns ranges whose protection is a superset of the specified value.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
targetYes
filterNorw-
Behavior3/5

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

No annotations provided, so description carries full burden. It explains that Frida returns ranges with protection superset of filter value. However, it does not disclose side effects (likely none), error behaviour, or prerequisites (e.g., attached process). Adds some context but not comprehensive.

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 two concise sentences and parameter details. No wasted words; front-loaded with purpose. Efficient and clear.

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?

Given 2 parameters and no output schema or annotations, the description explains parameters but does not describe return format (e.g., list of range objects) or prerequisites (e.g., process must be attached). Missing some necessary context for a complete understanding.

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

Parameters4/5

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

Schema description coverage is 0%, so description must compensate. It describes target as 'process name or pid' and filter as 'protection string filter (default 'rw-')' with explanation of superset behavior, adding significant meaning beyond the schema.

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 verb 'Enumerate' and resource 'malloc heap ranges' with a filter by memory protection. This distinguishes it from siblings like frida_enumerate_ranges which enumerates all ranges.

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 explicit guidance on when to use this tool versus alternatives like frida_enumerate_ranges or frida_kernel_enumerate_ranges. The description implies use for malloc analysis but doesn't provide when/why.

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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