tilemap_set_cell

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

No annotations provided, yet the description only says 'Set a cell' without disclosing behavioral traits such as overwriting behavior, permissions required, or side effects on existing cells.

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 front-loaded with the main action and structured with 'Args:' heading, listing parameters clearly. Though long, it compensates for missing schema descriptions.

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 tool with 10 parameters and no annotations, the description covers all parameters but lacks behavioral context and usage guidance. Output schema exists but is not described, so completeness is moderate.

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?

With 0% schema coverage, the description compensates by listing each parameter with a brief explanation (e.g., 'x: X coordinate of the cell'), adding meaning beyond the schema's titles and types, but explanations are minimal and mostly restate the name.

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?

Clearly states 'Set a cell in a TileMap or TileMapLayer node', distinguishing it from sibling tilemap_get_cell. Verb+resource is specific and unambiguous.

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?

No guidance on when to use this tool versus alternatives, no prerequisites or exclusions provided. Only states what the tool does, not when to use it.

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