getDatasetItem
Retrieve a specific dataset item from Langfuse by its unique ID for detailed analysis.
Instructions
Get a specific dataset item by ID.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| datasetItemId | Yes | The unique dataset item identifier |
Retrieve a specific dataset item from Langfuse by its unique ID for detailed analysis.
Get a specific dataset item by ID.
| Name | Required | Description | Default |
|---|---|---|---|
| datasetItemId | Yes | The unique dataset item identifier |
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 only states the retrieval operation without disclosing any behavioral traits, side effects, or return structure. Minimal disclosure is insufficient for a tool with no annotations.
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 a single, efficient sentence with no wasted words. It front-loads the action and resource.
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 simple retrieval with one parameter, the description is nearly complete. It lacks output description, but no output schema exists. In context of siblings, it is self-explanatory.
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 baseline is 3. The description adds 'by ID' but the schema already describes the parameter as 'identifier'. No additional semantic value beyond the schema.
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 action 'Get' and the resource 'dataset item', and specifies the method 'by ID'. It distinguishes from sibling tools like listDatasetItems (list multiple) and createDatasetItem (create).
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?
No explicit guidance on when to use this tool versus alternatives. The purpose is implied by the name and description, but there is no mention of when not to use it or which sibling to prefer in different contexts.
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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