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How to rewrite sections of a Word document with AI, using your own key with Hermes Office

Ask an AI agent to edit a .docx block by block, then review the diffs and snapshots before keeping them.

Credentials. Your AI provider API key is entered into the app, so store it carefully and revoke it from the provider if it is exposed.

Who it is forA professional who needs to revise a report, proposal, or contract draft and wants to use their own AI provider account.

The problemRewriting a long document by hand is slow, and most AI tools either lock you into their service or change the whole file at once.

The outcomeA revised .docx where each AI edit is shown as a diff and can be reverted from a snapshot.

What you need first

  • A Mac with Apple Silicon running macOS 11 or later for the published download, or a build from source for Intel Mac, Windows, or Linux
  • An API key from a supported provider such as Claude, OpenAI, or Gemini, or a Genspark sign-in, only if you want the AI features

Steps

  1. Download and open Hermes Office on your machine.
  2. Open your .docx in Hermes Office Docs.
  3. Add your own API key for a supported provider such as Claude, OpenAI, or Gemini, or sign in with Genspark.
  4. Ask the document agent to edit a specific paragraph or section, and state the change you want.
  5. Review the diff for each block-level edit, then keep the changes you accept and revert the rest using the snapshots.

Prompt for your agent

Using the HermesOffice repo at github.com/criptogus/HermesOffice, ask the document agent in HermesOffice Docs to revise <section name> of <path to .docx> to <desired change>. Output the revised .docx and the list of block-level diffs. Verify that paragraphs outside the requested section are unchanged.

Caveat. The AI features require your own API key or a Genspark sign-in, and the README does not say which provider works best for any given document.

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