u1_reproduce_run

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

With no annotations, the description must carry the safety and behavior burden, but it only implies that stored metadata is used and does not disclose whether this executes a new slicing run, writes output, or has side effects. It also does not mention what happens for non-regular runs or missing run IDs.

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 words. It is concise, though its brevity is partly a cause of the missing behavioral detail.

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 output schema and no annotations, an agent is left without information about return values, failure modes, or the semantics of 'regular run'. The one-sentence definition is enough to identify the tool but not enough to invoke it with confidence.

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% and the description does not compensate. 'run_id' can be inferred from 'previous run', but 'verbose' is never explained, and neither parameter is described in terms of accepted values or effects.

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 concrete verb ('re-slice') and a resource ('previous regular run'), and adds a distinctive source ('stored request metadata'), so an agent can tell this is about reproducing a run rather than creating a new slice. It is still missing a definition of what counts as a 'regular run', but the core purpose is clear.

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 explicit guidance about when to choose this tool over u1_slice, u1_smoke_slice, or u1_get_run. 'Re-slice a previous regular run' states the purpose but does not describe the condition for using it or name alternatives.

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