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by tszaks
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Hybrid

docs_apply_style

Apply heading or paragraph styles to specific text ranges in Google Docs using character indices.

Instructions

Apply a heading or paragraph style to a text range in a Google Doc by character indices.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "account": "<account>",
      "document_id": "<document_id>",
      "start_index": "<start_index>",
      "end_index": "<end_index>",
      "style": "<style>"
    },
    "name": "docs_apply_style"
  }
}

Input Schema

NameRequiredDescriptionDefault
styleYesStyle to apply.
accountYesAccount id.
end_indexYesEnd character index.
document_idYesGoogle Docs document ID.
start_indexYesStart character index (from docs_get response).

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.6.2

TDQS

B3.3/5.0
Behavior2/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It does not disclose that applying a style is a mutating operation, whether it overwrites existing formatting, or any error conditions (e.g., invalid indices). The description is minimal and lacks transparent side-effect information.

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?

The description is a single, front-loaded sentence that directly states the action, target, and method. There is no wasted language or redundant information.

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

Completeness3/5

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

Given the tool has 5 parameters and no output schema, the description alone is adequate but not rich. The schema covers parameters well, but usage context, behavioral expectations, and potential constraints are missing. It is a minimal but functional description.

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

Parameters3/5

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

The schema already covers 100% of the parameters, so the baseline is 3. The description adds a small bit of context by mentioning 'character indices' and 'heading or paragraph style', which aligns with the schema, but does not provide any additional parameter-specific meaning beyond that.

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?

The description clearly states the tool's function: applying heading or paragraph styles to a text range in a Google Doc, with a specific method (by character indices). This distinguishes it from sibling tools like docs_append or docs_replace_text.

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

Usage Guidelines2/5

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

No guidance is provided on when to use this tool versus alternatives. It does not mention prerequisites (e.g., needing the document to already exist) or exclusions. The description only states what it does, not when to use it.

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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