Visum Thinker MCP Server

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

With no annotations provided, the description carries full burden and does well by disclosing key behavioral traits: the multi-step workflow, format differences (raster vs vector), paper format support, and the critical requirement that 'SVG requires Visum GUI visible.' It also mentions scalability and editability of SVG. Missing details include error handling, performance expectations, or file size implications.

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

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

Well-structured with emoji, workflow steps, and format details in a single paragraph. Every sentence adds value (workflow, format specs, GUI requirement). Could be slightly more concise by integrating the workflow into the main sentence, but overall efficient.

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

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

For a complex tool with 9 parameters and no output schema, the description provides good context: workflow, format differences, and GUI dependency. It compensates well for the lack of annotations. Minor gaps include no mention of error cases or what the output looks like (though format is specified).

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

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

Schema description coverage is 100%, so the schema already documents all 9 parameters thoroughly. The description adds minimal parameter semantics beyond the schema—it mentions paper formats and SVG requirements which are covered in schema enums/descriptions. Baseline 3 is appropriate when the schema does the heavy lifting.

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

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

The description clearly states the specific action ('Load a Graphic Parameter file (.gpa) and export the network view as PNG/SVG') and distinguishes it from siblings like 'project_export_all_tables' or 'project_export_visible_tables' by focusing on graphic layout export rather than data tables. The emoji and workflow steps reinforce the visual/graphic nature of this tool.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear context with a workflow (list files, select layout, export) and format guidance (PNG vs SVG, paper formats). However, it doesn't explicitly state when NOT to use this tool or name specific alternatives among the sibling tools, though the workflow implies 'project_list_available_layouts' as a prerequisite.

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