get_identity_namespace

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

No annotations are provided, so the description carries the burden. It implies a read operation ('Get full details') and lists returned fields, but does not mention safety, idempotency, auth requirements, or rate limits. For a simple fetch tool, it is moderately transparent but lacks explicit behavioral cues.

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: the first is dense with key information, the second provides use cases. No wasted words or repetition. The description is efficiently structured and front-loaded.

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 a single parameter and no output schema, the description adequately explains what is returned and when to use it. It does not mention output format or pagination, but for a detail-fetch tool, the information is sufficient for an agent to understand its purpose and usage.

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%, and the parameter namespace_id is already well-documented in the schema with examples. The tool description does not add additional parameter semantics beyond listing what the response includes, which is unrelated to the parameter meaning.

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 'Get full details' and resource 'identity signal namespace', and lists specific aspects returned (capture method, lifetime, PII status, platforms, implementation notes). This distinguishes it from siblings like list_identity_namespaces (list all) and get_identity_signal_coverage (coverage).

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 explicit use cases: 'Useful when setting up a new signal or diagnosing a stitching gap.' It does not explicitly state when not to use or mention alternatives, but the context is clear enough for appropriate tool selection.

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