langfuse-mcp-java

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

The description adds 'This action is irreversible', elaborating on the destructiveHint=true annotation. However, it fails to explain behavioral implications of openWorldHint=true (external side effects) or idempotentHint=false (likely errors on second deletion), which are critical for a delete operation.

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?

Two sentences with zero waste. The first sentence front-loads the action and target; the second provides the critical safety warning. No fluff or redundancy.

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 single-parameter deletion tool with destructive hints and no output schema, the description covers the essential safety warning. Minor gaps remain regarding error semantics (what happens if ID not found?) implied by idempotentHint=false.

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 coverage is 100% with the itemId parameter fully described. The description references 'its ID' corroborating the schema, but adds no additional semantic context about ID format, validation rules, or sourcing beyond the schema definition.

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 states the specific verb 'Deletes', resource 'dataset item', and scope 'by its ID', clearly distinguishing it from sibling tools like delete_dataset, delete_annotation_queue_item, or delete_trace.

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 includes the warning 'This action is irreversible', which hints at consequences but lacks explicit guidance on when to select this tool versus alternatives (e.g., delete_dataset for entire datasets) or prerequisites (e.g., obtain ID via list_dataset_items).

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