Palette Visualize Impl

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

With no annotations, the description carries the full burden and does disclose meaningful behavior: 6 scene types, derived color roles, legibility gates, and a black/white-preservation rule for SVG recoloring. However, it never mentions side effects such as writing an output file (implied by the 'out' default of visualizer.html) or whether the operation is read-only, which is a notable gap for an unannotated tool.

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 dense sentence that front-loads the primary action and scene enumeration, with the optional SVG mode placed correctly as a secondary clause. No filler, though the sentence is long enough to be slightly hard to scan.

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, so return values need not be restated, and the core rendering behavior is well covered. Still, the undocumented 'out'/'theme' parameters, absent annotations, and unclear file-writing side effect leave gaps an agent would need to resolve before invoking.

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 0% across 3 parameters, so the description must compensate and largely does not. It clarifies the subject of 'palette' but adds nothing about 'out' (an output path) or 'theme', leaving two of three parameters semantically undocumented.

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 specific verb ('Render') and resource ('the palette') with an enumerated scope of 6 named UI scenes plus derived roles. The rendering action is implicitly distinct from siblings like palette_score_impl or palette_contrast_impl, but no sibling is named or contrasted explicitly.

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?

There is no when-to-use guidance, no prerequisites, and no routing against alternatives such as palette_report_impl, palette_export_impl, or palette_themes_impl. The only usage-adjacent hint is the optional SVG recolor mode, which is a capability rather than a selection criterion.

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