Hjarni for Writers

Your AI writes like everyone else. Teach it to write like you.

Product example

Write with an assistant that remembers your reporting and your voice

Style guides, interviews, source notes, and past work become much more useful when your assistant can revisit them every time it helps draft, revise, or outline a piece.

Claude

What was the name of the fisherman I interviewed in Galveston?

hjarni: search_notes

✓

Your interview notes from March 12: Ray Guidry, 34 years shrimping the Gulf. He said the catch is half what it was in the '90s.

Pull his best quote for the lede.

“My granddaddy could fill the boat by lunch. Now I’m lucky to fill it by sundown.”

Claude recalls reporting details from notes already saved in Hjarni.

The problem

AI writing tools produce generic output because they don't know you. Not your tone. Not your audience. Not the piece you published last week. Not the style guide you spent months refining. Every conversation starts from zero.

How writers use Hjarni

Store your style guide, sample pieces, and research notes in Hjarni. Set AI instructions that define your voice: "Short sentences. No jargon. Address the reader directly." When you ask Claude or ChatGPT for help, they work from your actual writing context.

A typical writer setup

Style guide folder — tone, voice, words to avoid, formatting rules
Published work folder — samples that show what good output looks like for you
Research folder — notes, interviews, source material for current projects
Ideas folder — pitches, outlines, half-formed thoughts
AI instructions — "Match the tone of my published pieces. Never use bullet points in drafts."

A concrete workflow

You're writing about remote team culture. Five interview transcripts are in Hjarni. You ask Claude: "Draft an opening paragraph based on the strongest quote from my interviews." Claude reads your notes. Picks the quote. Drafts in your voice — because your style guide and past work are right there.

Save the final version. Next time, your AI knows even better how you write.

Prompts like "Match my newsletter voice" or "Draft this section from my reporting notes" get much stronger when your assistant can revisit your style guide and source material every time.

Why not just paste your style guide into the chat?

You can. Every single time. Until you hit the context limit. Or forget the research notes. Hjarni keeps it all connected and available. Automatically, via MCP.

The difference between generic AI output and useful AI output is context. Your context.

What writers keep in Hjarni

Voice and style guides — tone, rhythm, formatting rules, and phrases to avoid
Reporting material — interviews, background research, quotes, and source notes
Published examples — finished pieces that show your assistant what good looks like
Project-specific rules — one set of instructions for newsletters, another for essays or client work
Idea capture — pitches, scraps, and outlines before they turn into drafts
Portable drafts and notes — Markdown-first writing you can always export

Common questions

Questions writers actually ask

How do I make ChatGPT write in my style?

Put your style guide, published samples, source material, and project notes in Hjarni. Then use folder-level AI instructions to define tone, structure, and rules so the assistant writes from your voice instead of a generic default.

What should writers save in Hjarni for better AI drafts?

Style rules, examples of strong finished work, interview notes, research snippets, outlines, and briefs all help. The richer the context, the more your AI can draft with the right angle and voice.

Is Hjarni useful for freelance and editorial writing?

Yes. Writers can keep separate folders and AI instructions for different clients, publications, or formats so the assistant switches voice and conventions with the project.

Can I keep different voice guidelines for different clients?

Yes. Separate folders and instructions make it easy to keep one voice for your newsletter, another for client work, and another for long-form pieces.

Can Hjarni help with research-heavy writing?

Yes. It is useful when you need your assistant to pull from interviews, source notes, published examples, and outlines without re-pasting everything into every draft prompt.

Give your AI a memory

Notes in Markdown | AI instructions | Connect Claude | Hjarni vs Apple Notes | What is Hjarni?