get_trace_service

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

Annotations already cover the safety profile (readOnlyHint, idempotentHint, non-destructive). The description adds only that the tool returns 'detailed information,' without explaining what fields are included, how missing IDs are handled, or any operational traits beyond the annotated read-only 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 a single front-loaded sentence with no filler. It is appropriately concise for a one-parameter getter, even though 'detailed information' is somewhat vague.

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 read-only getter with one parameter, the description is usable, but with no output schema it leaves the agent to infer the return payload. It also does not clarify what distinguishes a trace service's 'detailed information' from the metrics, properties, alerts, and datasources exposed by sibling tools.

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 input schema fully documents service_id with 100% coverage, so the baseline is 3. The description does not add meaning beyond the schema, such as how service_id relates to the APM trace service or what the expected format is.

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 uses a clear verb ('Get') and a specific resource ('APM trace service'), and 'specific' signals a singular lookup. It is distinguishable from the list-style get_trace_services sibling, though it does not explicitly distinguish itself from get_trace_service_metrics, get_trace_service_properties, or other related 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 phrase 'specific' implies this is for fetching one trace service by ID, but there is no explicit guidance on when to use this tool versus get_trace_services, get_trace_service_metrics, or get_trace_service_properties. No prerequisites or alternative conditions are stated.

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