arrangement_prepare_pattern

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

The annotations already declare destructiveHint: true, readOnlyHint: false, and openWorldHint: true. The description adds a useful operation sequence—find, select, name/color, set length—but does not disclose what happens if the FL-reported pattern is no longer empty, whether the selection change is significant, or how failures behave. With annotations carrying the safety profile, the description provides some value but not full behavioral transparency.

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 front-loaded sentence with no filler. It lists the workflow in execution order: find, select, name/color, set length. Every phrase contributes to the tool's purpose.

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 destructive composite tool with four parameters and no parameter-level schema descriptions, this short description is not fully adequate. It omits start_pattern_number semantics, fail behavior when no empty pattern exists, explicit when-to-use guidance, and side-effect detail. The annotations and output schema offset some completeness, but the description alone leaves an agent uncertain about safe or correct use.

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 description maps three of the four parameters to meaningful actions: name, color, and length. It does not mention start_pattern_number, and it does not explain the color integer format or the meaning of selecting a starting pattern. Since schema description coverage is 0%, the description partially compensates but leaves a real semantic gap.

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 a concrete multi-step operation: find an FL-reported empty pattern, select it, name/color it, and set its length. It is distinct from a tautology and conveys the resource and actions. However, it does not explicitly contrast itself with the closely related sibling tools like fl_find_empty_pattern, fl_select_pattern, fl_set_pattern_identity, or fl_set_pattern_length.

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 gives the operational steps but provides no explicit guidance about when to invoke this composite tool versus calling the individual sibling tools. It does not mention any prerequisites, exclusions, or cases where this tool should not be used.

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