# Nelson MCP — LibreOffice Desktop Extension MCP Server

An MCP server inside LibreOffice: agents read and edit your open Writer and Calc documents.

**Publisher claimed.** No tool list reported, and Pod has not connected to this server.

## At a glance

**Source code:** [Open repository](https://github.com/quazardous/nelson-mcp)

**GitHub popularity:** 23 stars on [quazardous/nelson-mcp](quazardous/nelson-mcp), recorded 2026-09-27.

## Status

Pod has not dialled Nelson MCP — LibreOffice Desktop Extension yet, so everything on this page is what its publisher reported rather than what we observed. Registries describe servers; they do not connect to them. Until a check runs, treat the tool list below as a claim.

## Connect

## Reviewed GitHub reports

**30 GitHub reports passed Pod's relevance review.** This can include external user reports, maintainer-confirmed bugs, and concrete feature gaps. It is evidence to inspect, not a count of distinct defects. Showing 2.

### Most discussed

### MCP edits are recorded as tracked changes even when Record Changes is off — please consider an opt-out

### Summary

With *Edit → Track Changes → Record Changes* switched **off** in the LibreOffice UI, edits performed through Nelson MCP tools are still written into `xl/revisions/` on save. Manual edits typed in the UI are correctly not recorded.

### Steps to reproduce

1. Open a `.xlsx` in LibreOffice Calc.
2. Make sure *Edit → Track Changes → Record Changes* is **off**.
3. Via MCP: `write_cell_range` -> `Price!A60 = "TEST2"`
4. By hand in the UI: type `Price!A61 = "manual test"`
5.…

[Read the thread](https://github.com/quazardous/nelson-mcp/issues/22) · 2026-07-21 · closed · external user · 10 comments

### Most recent

### /health and doc_info treat the Start Center as a document after the first tools/list

On a fresh LibreOffice started without a file, with the Start Center current, `/health` is correct (`available: false`) until the first `tools/list`. After it, `/health` reports `available: true` with `doc_type: null` and a `doc_id` that is new on every start. `doc_info` without `_document` resolves to that same id and fails with `execution_error`, message `getURL`, while `doc_list_open` returns 0 documents. The state stays until a document is opened; after a `doc_open` and `doc_close`, a…

[Read the thread](https://github.com/quazardous/nelson-mcp/issues/43) · 2026-09-27 · open · external user · 1 comment

[See all 19 reviewed GitHub reports](/mcp/nelson-mcp-libreoffice-desktop-extension/issues) — of 30 qualified upstream.

## Firsthand observations

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## For agents

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<details>
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```json
{
  "query": "Nelson MCP — LibreOffice Desktop Extension",
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}
```

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```

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