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crmmc

DrissionPage BetterMCP

by crmmc

keyboard_type

Enter text on the current page using keyboard simulation. Use for page-level typing when no specific element is targeted.

Instructions

Type text continuously on the current page as keyboard input.

Types each character sequentially. For filling form fields, prefer element_input
which targets a specific element. Use this for page-level typing when no specific
element reference is needed.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
textYes
tab_idNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior4/5

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

Discloses sequential character typing behavior. No annotations to contradict; description adds value beyond schema.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Three well-structured sentences, front-loaded with purpose, no fluff.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Adequate for a simple tool with output schema. Could clarify 'tab_id' but otherwise complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 0%. Description only mentions 'text' implicitly; does not explain 'tab_id' parameter, leaving semantics unclear.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Clearly states verb 'type' and resource 'text continuously on current page'. Distinguishes from sibling 'element_input' by indicating page-level usage vs form fields.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly advises to prefer 'element_input' for form fields and specifies when to use this tool (page-level typing without element reference).

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

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