chartimg_v1_mini_chart_storage

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

With no annotations provided, the description carries the full burden. It does disclose the core side effect ('save ... to public storage') and the response format ('returns JSON with url'), which is useful. However, it omits behavioral details like whether existing files are overwritten, authentication requirements, storage limits, or what happens on failure.

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 that communicates the action, destination, return format, and a related retrieval route. There is no redundant or filler content.

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?

Given this tool has 9 parameters, no output schema, and no annotations, the description is too thin. It does not explain parameter defaults, which fields are essential for a valid save, or how this storage option differs from the advanced/layout/snapshot siblings. The GET endpoint hint is helpful but does not make the definition complete.

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 very low and the description adds no parameter-level meaning. Only 'symbol' has a schema description; width, height, interval, watermark, watermarkSize, and watermarkOpacity remain unexplained. Theme and format enums help somewhat, but the description does not compensate for the missing semantics.

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 ('save'), the resource ('a TradingView mini chart'), and the destination ('public storage'), and also notes the return type ('JSON with url'). It distinguishes the tool from siblings via the 'mini' qualifier, but it does not explicitly name or contrast any sibling, so it stops short of full differentiation.

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 provides no guidance on when to use this tool versus the advanced, layout, or snapshot siblings. It mentions a GET endpoint for retrieval, but it never states selection criteria, exclusions, or scenarios where another chart storage tool should be used.

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