convert_to_gray

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

Annotations already mark the tool as destructive, but the description adds meaningful behavioral context: 'in place' tells the agent the original view is mutated, and 'Checkpoints first' discloses the safety workflow. This goes beyond the annotation alone and helps an agent understand the operational impact.

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 short, purposeful phrases with no filler. The core action is front-loaded, and the checkpoint note adds critical safety information without bloating the text.

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?

For a simple view-conversion tool, the essential behavior—what is transformed, in-place mutation, and checkpoint-before-run—is covered. There is no output schema, but 'in place' implies no separate returned image. Minor gaps remain around failure behavior and what happens to the existing view, but these are not critical for a tool this simple.

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 schema documents the checkpoint parameter, and the description's 'Checkpoints first' reinforces the sequencing. The description also implies that 'id' refers to a view, partially compensating for the missing schema description. However, it does not explain the id format or its precise role, leaving a modest gap given 50% schema coverage.

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 action ('Convert'), the resource ('a view'), and the mode ('to grayscale in place'), making the tool's purpose unambiguous. It is semantically distinct from sibling operations like invert, binarize, or extract_channels, so an agent can recognize what this tool does without opening the schema.

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 intended use is implied: use this when a view should be converted to grayscale. However, the description gives no explicit guidance on when to prefer this over alternative operations, nor does it mention exclusions or conditions that would make it inappropriate.

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