Use your, a founder's, or a client's voice to draft across supported channels.
Build a persona from your writing — or your founder's or client's — and use its voice and source context to draft LinkedIn posts, X posts, and articles with optional scheduling and approval.

X (Twitter)
Threads
Blog
Substack
WordPress
Article
Configure a persona, then reuse it.
Add writing samples and knowledge sources, choose scheduling and approval settings, and reuse that context for persona-guided drafts.
Create Persona
Create and manage the persona voice, knowledge, approvals, and automatic schedule.
Identity
Start from a public source, then confirm the persona label and brief.
Identity extracted
Confirm the identity here, then review voice and knowledge.
Writing Style
Paste essays, posts, and notes that define voice, rhythm, structure, and language.
Writing examples
Used to learn the persona writing style.
https://x.com/paulg184 parsed posts · 4,286 words
https://paulgraham.com/foundermode.html1,124 words
https://paulgraham.com/greatwork.html1,842 words
https://paulgraham.com/ds.html936 words
https://paulgraham.com/startupideas.html1,508 words
https://paulgraham.com/superlinear.html1,218 words
Founder notes: sound direct, skeptical of generic startup advice, and grounded in concrete founder behavior.
Open with a simple claim. Make it more specific. Explain why the obvious framing is wrong.
Avoid broad inspiration, polished marketing language, and advice that could apply to any company.
Knowledge
Add background material the persona should understand and reuse.
Knowledge source
Used to ground the persona in facts, constraints, and recurring ideas.
https://paulgraham.com/startupideas.html312 facts
https://paulgraham.com/foundermode.html18 principles
https://paulgraham.com/superlinear.html24 concepts
The persona should know that founder-led work rewards speed, specificity, and direct contact with customers.
Keep the knowledge practical: operating principles, decision filters, examples, and strong counterexamples.
Avoid turning source material into generic startup doctrine.
Autopilot
Choose how much the persona can do without intervention.
Approval mode
Review first
Ideas and content wait for approval before publishing.
Fully automatic
Generate and publish without approval gates.
Manual publish
Generate with review, then publish only by hand.
Scheduled generation
One run creates one idea and drafts every selected format.
How it works
Proseona combines writing samples with the knowledge sources you choose, then applies that context while drafting articles, social posts, newsletters, and more.

One persona, many channel drafts
Use the same voice and source context to generate channel-specific drafts, then review or schedule them.

Who it's built for
For founders and the teams writing in their voice.
Founder-led startups
Turn founder ideas, notes, and POV into LinkedIn, X, and article drafts.
GTM & content leaders
Reuse expert voice and selected source context across campaigns and supported channels.
Ghostwriters & agencies
Build reusable client personas and draft supported formats without re-entering the same sources.
Simple plans
Cancel anytime. Simple, transparent monthly pricing.
Pro
For focused creators publishing consistently