vtable_drop_files

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

With no annotations, the description must disclose behavior itself. It states the operation is an automated browser drag-drop via Playwright and explains the coordinate mapping, which is meaningful. It does not mention side effects such as file upload/change events, prerequisites like an active browser page, or reversibility, leaving some behavioral opacity.

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?

Three short sentences deliver purpose, mechanism, and parameter meaning with no filler. The key action is front-loaded, and each sentence earns its place.

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?

The definition covers the core invocation facts: what is dropped, where, and how coordinates are resolved, and an output schema exists for return details. It omits preconditions such as an active connected browser and a rendered .vtable container, and it says nothing about failure modes. For a browser automation mutation, this is a modest gap.

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 schema provides no parameter descriptions, but the description defines files as server-side file paths and data as optional clipboard-style key-values. It only indirectly covers col and row as 'specified cell' coordinates and does not state zero-based indexing or coordinate conventions. This partial compensation earns a middle score.

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 names a concrete action (dragging server-side files) and a precise target (a VTable cell), backed by an exact API (Playwright Locator.drop). This clearly distinguishes it from sibling tools that click, read, or resolve VTable cells, even though no sibling is named 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?

The description implies its use case: simulating a drag-and-drop of local server files onto a VTable cell. It does not explicitly state when to prefer it over alternatives such as vtable_cell_click or vtable_cell_info, nor does it state when not to use it. Usage is inferred rather than explicitly routed.

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