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lidless-labs

maltego-mcp

by lidless-labs

maltego_load_graph

Load an existing Maltego .mtgx graph file into a new graph handle and retrieve its graph ID for reopening saved investigations.

Instructions

Load an existing .mtgx into a new graph handle. Returns the new graphId.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
pathYesPath to a .mtgx file inside outputDir.
Behavior2/5

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

With no annotations, the description carries full burden. It only states it loads a file and returns a graphId. No disclosure of error handling, file existence requirements, or side effects on existing graphs. Minimal behavioral context.

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?

Two sentences, front-loaded with the verb and resource, no redundant information. Efficient and easy to parse.

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

Completeness4/5

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

For a simple load operation, the description covers the core purpose and return value. However, it omits potential issues like file not found or permission errors, and given no output schema, the return value is only mentioned but not detailed.

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% for the single parameter 'path', which already has a clear description. The tool description adds no extra parameter semantics beyond implying the file type.

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 action ('Load') and resource ('.mtgx file into a new graph handle'), and implies the result (returns graphId). It is specific and distinguishes from sibling tools like 'create' or 'save', though it does not explicitly differentiate.

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 (e.g., create_graph, save_graph). There is no mention of prerequisites or context in which loading is appropriate.

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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