add_layout_picture

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

No annotations are provided, so the description carries the full behavioral burden, and it discloses almost nothing: no mention of whether the change persists to disk, whether an existing layout is required, what happens on an invalid picture_path, or whether duplicate names are allowed. 'Place' implies a mutation but adds no operational detail.

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?

A single short sentence with zero filler, front-loaded on the action. It is efficient, though the terseness leaves little room for structural cues about required inputs.

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?

An output schema exists and parameter coverage is complete, so return values and argument formats are covered elsewhere. What remains missing for a layout-mutating tool with no annotations is prerequisite/state context (does the layout need to exist, are edits saved), leaving the definition merely adequate.

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 100% and all seven parameters (x, y, name, width, height, layout_name, picture_path) are documented in the schema itself. The description adds no positional, unit, or format semantics beyond what is already structured, so the baseline 3 applies.

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?

States a clear verb+resource ('Place an image... on a layout') and names a concrete example (logo), which makes the intent unambiguous. It doesn't explicitly contrast itself with siblings like add_layout_text or add_layout_legend, but the 'picture' resource is distinct enough to infer the boundary.

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 when-to-use guidance, no prerequisites, and no alternatives offered. It doesn't say whether the layout must exist/be active first, or whether create_layout must precede it.

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