LibreOffice MCP Tools

document_insert_text

Insert text into LibreOffice Writer documents at specific positions: beginning, end, or after headings. Use to add content with paragraph styles.

Instructions

Insert text into a Writer document at a specified position. Position options: 'start' (beginning), 'end' (end of document), or after a specific heading text.

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": {
      "docId": "<docId>",
      "text": "<text>"
    },
    "name": "document_insert_text"
  }
}

Input Schema

Name	Required	Description	Default
`docId`	Yes	Document handle returned by document_open
`text`	Yes	Text content to insert
`position`	No	Where to insert: start, end, or after_heading	end
`headingText`	No	Required when position is after_heading: the heading text to insert after
`style`	No	Paragraph style (e.g., "Heading 1", "Normal"). Default: Normal

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.1.0Apr 21, 2026

TDQS

B3.2/5.0

Behavior2/5

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

With no annotations provided, the description carries full burden but offers minimal behavioral disclosure. It states what the tool does but doesn't mention permissions required, whether the insertion is reversible, how it handles existing content, or what happens on success/failure. For a mutation tool with zero annotation coverage, this leaves significant behavioral questions unanswered.

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 extremely concise with just two sentences that directly state the tool's function and positioning options. Every word serves a purpose with zero redundancy or unnecessary elaboration.

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

Completeness2/5

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

For a mutation tool with 5 parameters, no annotations, and no output schema, the description is insufficient. It doesn't explain what happens after insertion, error conditions, or how the tool interacts with document state. Given the complexity and lack of structured coverage, more context about behavioral outcomes is needed.

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?

Schema description coverage is 100%, so the schema already documents all parameters thoroughly. The description adds minimal value beyond the schema by mentioning position options ('start', 'end', or after a specific heading text'), which is already covered in the position parameter's enum and description. No additional parameter semantics are provided.

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 specific action ('Insert text'), target resource ('Writer document'), and positioning mechanism ('at a specified position'). It distinguishes itself from siblings like document_insert_paragraph (which inserts paragraphs) and document_replace_text (which replaces rather than inserts).

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 like document_insert_paragraph or document_replace_text. The description mentions position options but doesn't explain scenarios where one position choice is preferable over another or when other tools might be more appropriate.

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