MQScript MCP Server

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

With no annotations provided, the description carries the full burden of behavioral disclosure. While it states what the tool does, it doesn't describe important behavioral aspects: whether this modifies the original array, what happens with empty arrays, how errors are handled, or what format the result takes. For a transformation tool with zero annotation coverage, this leaves significant gaps in understanding the tool's behavior.

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?

The description is perfectly concise at 6 words, front-loading the core functionality with zero wasted words. Every element ('Join', 'array elements', 'into string', 'using delimiter') contributes essential understanding. This is an excellent example of efficiency in technical documentation.

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?

Given the simple transformation nature of this tool and 100% schema coverage, the description is minimally adequate. However, with no output schema and no annotations, the description should ideally mention what the tool returns (presumably the joined string stored in resultVariable) or any side effects. For a tool with three parameters and no structured output documentation, the description could be more complete.

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?

The description mentions 'using delimiter' which aligns with one parameter, but doesn't add meaningful semantics beyond what the 100% schema coverage already provides. The schema thoroughly documents all three parameters (arrayName, delimiter, resultVariable) with descriptions and defaults. The description adds no additional context about parameter usage, constraints, or examples.

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 verb ('Join') and resource ('array elements into string'), making the purpose immediately understandable. It distinguishes from sibling tools like 'mqscript_split' (which does the opposite operation) by specifying the direction of transformation. However, it doesn't explicitly mention the sibling relationship or contrast with other array/string manipulation tools.

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 no guidance on when to use this tool versus alternatives. While the purpose is clear, there's no mention of when this is appropriate versus other string manipulation tools (like 'mqscript_concat' if it existed) or array processing tools. The agent must infer usage from the tool name and description alone.

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