Execute Approved Operation

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

With no annotations, the description carries the full burden. It discloses that execution happens once and that ambiguous submissions are never retried, which adds useful behavioral context. However, it does not mention side effects, permissions, or failure 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 sentence, front-loaded with the main purpose, and includes valuable details like 'once' and 'never retried'. It contains no unnecessary words.

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 is simple, but the description lacks explicit preconditions (e.g., plan must be approved) and return value information. It also introduces jargon ('injected local transport') without explanation. Overall, it is adequate but has gaps.

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 parameter planId is not mentioned in the description, and schema coverage is 0%. The description implicitly suggests the parameter identifies the plan to execute, but it adds no explicit meaning beyond the schema's name and constraints.

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 clearly states the tool executes an approved fixture plan, using a specific verb and resource. It distinguishes itself from siblings like plan_operation, approve_operation, and read_sanitized_results by being the execution step.

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 name and context imply it should be used after approval, but the description does not explicitly state when to use it versus alternatives. It lacks clear exclusions or alternative tool references.

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