alpha_replay_execute

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

Annotations are all false, so the description carries the full burden of behavioral disclosure. It states 'Execute or resume' indicating mutation, but does not describe side effects, whether the call blocks, or what the output contains. The phrase 'operator-configured fixture' hints at a prerequisite but lacks detail on what that entails.

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 sentence with no filler. It front-loads the action ('Execute or resume') and includes the key context of the fixture. It is concise and appropriately sized, though it could have added more guidance without becoming verbose.

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?

The tool has an output schema but the description does not reference it, leaving the agent unaware of what to expect as a return. It lacks prerequisites (e.g., that a fixture must be configured beforehand) and does not cross-reference sibling tools. For a mutation tool with no annotation support, the description is incomplete.

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 only parameter, run_id, is not described in the description. With 0% schema coverage, the description does not explain what run_id refers to, how to obtain it, or its format. The description implies it identifies a replay-mode run but offers no elaboration, leaving the agent without sufficient meaning for the parameter.

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 a clear verb ('Execute or resume') and resource ('replay-mode run'), and mentions the operator-configured fixture, which adds specificity. It distinguishes itself from siblings like alpha_run_stop and alpha_run_status by indicating it is the action tool. However, it does not clarify the distinction between executing a new run and resuming an existing one, which is a minor ambiguity.

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 no explicit guidance on when to use this tool versus alternatives. It does not mention checking run status before resuming, or that this is the sole tool for starting replay runs. The context is implied but not stated, and there are no exclusions or alternative references.

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