get_enduraw_matrix_summary

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

No annotations are supplied, so the description carries the full burden. 'Fetches' weakly implies a read operation, but there is no disclosure of auth requirements, whether the summary is cached or computed on demand, what 'current' means temporally, or how large the payload is. For a zero-parameter tool with no annotations, the behavioral picture is thin.

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 front-loaded sentence with no filler or redundancy. It is efficient, though its brevity comes partly at the cost of the differentiation the agent actually needs.

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?

With no annotations, no output schema, and a large sibling cluster containing two matrix-adjacent tools, the description should at minimum define what the 'Runner Matrix' summary contains and how it relates to get_enduraw_matrix. Neither is present, so an agent cannot confidently choose this tool or anticipate its return.

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 tool takes zero parameters, so there is nothing for the description to disambiguate and the baseline of 4 applies. A small deduction would be warranted only if it mattered that the athlete identity is implicit, which the description does not clarify.

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 ('Fetches') and resource ('Runner Matrix metrics and current scores'), and 'summarized view' hints at reduced detail. However, siblings get_enduraw_matrix and get_enduraw_matrix_history exist and the description never explains how this differs from them, leaving the agent to guess whether this is the full matrix, an aggregate, or a truncated version.

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?

There is no when-to-use guidance at all — no indication of when to prefer this over get_enduraw_matrix or get_enduraw_matrix_history, and no stated preconditions (e.g., whether athlete context is implicit from auth). The agent must infer selection from the name alone.

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