compare_execution

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 discloses the return values (per-language stdout/stderr/exit/duration plus fastest) and the requirement that each snippet be valid in its own language. It does not describe stdin/timeout behavior or execution model, but the key behavior is well covered.

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 two sentences plus a compact example. It is front-loaded with the core purpose, and every sentence earns its place; the example adds clarity without waste.

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 an output schema present, return value documentation is not required in the description. The description covers the main parameter and return behavior, but leaves stdin and timeout semantics unspecified. Given the tool's moderate complexity, this is a minor gap.

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 0%, so the description must compensate for all parameters. It explains 'snippets' in detail with an example, but completely omits 'stdin' and 'timeout'. Even though they have defaults, their behavior in this multi-execution context is not described, leaving a significant gap.

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 states the tool 'runs the same code in multiple languages side by side,' clearly identifying the action and resource. It distinguishes from sibling tools like execute_code (single language) and translate_code (code translation).

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 clearly conveys the use case of comparing execution across languages, but does not explicitly state when not to use it or name alternatives. The example implies usage, yet exclusions are absent, so it's slightly below the highest standard.

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