Retrieve a single session document by its unique ID to access Oura Ring health data such as sleep and activity metrics.
Get a single session document by its unique ID.
| Name | Required | Description | Default |
|---|---|---|---|
| document_id | Yes | The unique document ID |
Changes observed during successful MCP inspections.
v1.0.0Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations, so the description carries full behavioral burden. It says nothing about read-only nature, error behavior for missing/invalid IDs, or return format despite no output schema.
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?
A single tight sentence with zero waste, front-loaded with the verb 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 single-param lookup this is minimally viable, but with no annotations and no output schema it omits the read-only guarantee, error semantics, and what a session document contains.
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% and the single parameter document_id is fully documented in the schema. The description adds no syntax or format detail beyond what the schema provides, so baseline 3 applies.
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?
States a specific verb (get) and resource (a single session document) scoped by unique ID. Clear but does not distinguish from sibling get_sessions (list) or the many other get_*_by_id siblings beyond the resource noun.
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 when-to-use guidance, no mention of the get_sessions sibling for listing, and no exclusions. The by-id naming implies a lookup pattern but nothing is explicit.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.