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mrphrazer

Binary Ninja Headless MCP

by mrphrazer

binary.sections

List the memory sections of a binary file using a session ID, with optional pagination via limit and offset parameters.

Instructions

List sections with pagination.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNo
offsetNo
session_idYes
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 burden. It does not disclose whether this is a read-only operation, what happens when no sections exist, or the default ordering. For a listing tool, especially with missing annotations, this is insufficient behavioral transparency.

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

Conciseness3/5

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

The description is a single phrase, which is concise but lacks structural completeness. It front-loads the core action but misses opportunities to add value without bloat. Given the minimal content, it earns a baseline score for not being verbose.

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 the complexity of a paginated list tool with no output schema and three parameters, the description is too brief. It does not specify what data is returned per section, whether the list is exhaustive or limited, or the interaction with the session context. The tool's purpose in a larger binary analysis workflow is unclear.

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 0%, meaning the description must compensate. The description only mentions 'pagination' generically, referencing the 'limit' and 'offset' parameters but not explaining their semantics (e.g., results per page, start index). For three parameters with zero schema documentation, this adds minimal value.

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

Purpose3/5

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

The description says 'List sections with pagination', which provides a clear verb ('List') and resource ('sections'). It distinguishes from sibling tools like 'binary.segments' by adding the pagination hint, but does not clarify whether these sections are binary file sections or memory sections, leaving some ambiguity.

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?

The description provides no guidance on when to use this tool versus alternatives like 'binary.segments' or 'segment.add_user'. It does not mention prerequisites (e.g., a loaded binary) or context such as file type constraints. The pagination mention is vague without explaining typical use cases for pagination parameters.

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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