style_text
Applies character formatting to [start_index, end_index): bold, italic, underline, strikethrough, small_caps, font_size (points), font_family (e.g. "Roboto"), foreground_color/background_color (6-digit hex), link_url (empty string removes an existing link) and baseline_offset (superscript/subscri...
This record as markdown: /tools/a1-x-tech-mcp-google-docs/style-text.md
What style_text does on Mcp Google Docs
AI agents call style_text to retrieve information from Mcp Google Docs without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
bold | boolean | — | Bold on/off. |
italic | boolean | — | Italic on/off. |
tab_id | string | — | Tab to target (from list_tabs). Omit for the first/only tab. |
link_url | string | — | Turn the range into a link to this URL; empty string removes an existing link. |
end_index | integer | Yes | End of the range to style (exclusive). |
font_size | number | — | Font size in points. |
underline | boolean | — | Underline on/off. |
segment_id | string | — | Header/footer/footnote segment id (from get_document). Omit for the document body. |
small_caps | boolean | — | Small caps on/off. |
document_id | string | Yes | The document id — the long id from the document URL (docs.google.com/document/d/<documentId>/edit) or from create_document output. |
font_family | string | — | Font family name, e.g. "Roboto". |
start_index | integer | Yes | Start of the range to style (inclusive). |
Parameters from the server's own tool schema.
Why style_text is rated Low
Even though style_text only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Risk signalsHigh parameter count (16 properties)
Attacks that exploit this kind of access
The rule that runs style_text safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp Google Docs, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For style_text, this is the rule to start with:
style_text is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Mcp Google Docs, apply this rule, and every style_text call is checked against it from then on.
Questions about style_text
Applies character formatting to [start_index, end_index): bold, italic, underline, strikethrough, small_caps, font_size (points), font_family (e.g. "Roboto"), foreground_color/background_color (6-digit hex), link_url (empty string removes an existing link) and baseline_offset (superscript/subscript/none). Only the provided fields change (the fields mask is computed); at least one is required. Explicit false turns a toggle off. Get indexes from read_document_text. Styling does not shift indexes, so several style calls can safely reuse the same coordinates. It is categorised as a Read tool in the Mcp Google Docs MCP Server, which means it retrieves data without modifying state.
style_text accepts 12 parameters: bold, italic, tab_id, link_url, end_index, font_size, underline, segment_id, small_caps, document_id, font_family, start_index. Required: end_index, document_id, start_index. The full parameter table on this page comes from the server's own tool schema.
Register the Mcp Google Docs MCP server in PolicyLayer and add a rule for style_text: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Mcp Google Docs. Nothing to install.
style_text is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the style_text rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for style_text. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
style_text is provided by the Mcp Google Docs MCP server (@a1-x-tech/mcp-google-docs). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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