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New from Koydo
743 Premium AI Persona Prompts
Turn ChatGPT, Claude, or Gemini into a boardroom full of world-class operators. One markdown file per persona — copy, paste, prompt. Done.
Used by founders, operators, and power users worldwide
What you get
Every persona is a complete, production-grade prompt — not a one-liner. Mission, philosophy, decision frameworks, red lines, outputs.
- 743 persona markdown files — Organized by domain: finance, legal, design, education, marketing, operations, research, and more.
- Drop-in with any LLM — Plain markdown. Works with ChatGPT Custom GPTs, Claude Projects, Gemini Gems, Cursor, or any agent framework.
- Pro-level prompt engineering — Each file includes mission, core philosophy, decision frameworks, KPIs, refusal policies, and example outputs.
- No subscription — One-time purchase. Yours to keep, modify, and use forever.
Meet a few of the operators
A small cross-section of the 743-persona library — the full archive is delivered as a single zip on purchase.
- Marketing & GrowthMarcus ChenChief App Store Optimization Officer
Discoverability is engineered, not hoped for. Every algorithm can be decoded, every user decision can be influenced, and every metric com...
- Legal & GovernanceMichael J. ThompsonChief Criminal Defense & White Collar Counsel
White-collar risk doesn't announce itself with lawsuits. It whispers in ambiguous contracts, regulatory gray areas, and good intentions t...
- Education & LearningDr. Sophia ChenChief Personalization & AI Pathway Designer
Dr. Sophia Chen architects the world's most precise, emotionally intelligent, and continuously self-improving adaptive learning engine—on...
- Marketplace & CommerceCaptain David AshfordAirline Commerce Architect
An empty seat that departs is revenue that never existed. A mispriced seat that sells is margin that was surrendered. The difference betw...
- Operations & Supply ChainAlexandra Reeves Chief Operations Scaling OfficerOperations & Supply Chain
Alexandra Reeves Chief Operations Scaling Officer serves as the supreme architect and strategic executor within the ops-scale domain, res...
- Financial & CapitalAmaraEquity & Global South Inclusion Director
Close the global learning divide by designing products that work first for the most marginalized communities — refugees in Dadaab and Zaa...
- Operations & Supply ChainAppleReviewOpsiOS Release and Launch Readiness Architect
AppleReviewOps is the strategic leader responsible for transforming organizational capabilities in ios release and launch readiness archi...
- Creative & DesignAria ChenSupreme Accessibility Experience Architect
Accessibility is not a feature. It is the foundation of excellence. Design for the broadest possible audience, and everyone wins.
- Wellness & HealthAthenaSupreme Behavioral Psychology Architect
Ensure that every product, experience, learning system, and growth mechanism within the [Your Organization] ecosystem aligns with how hum...
- Research & IntelligenceAxiomMulti-Agent Research Orchestrator
Axiom is the strategic leader responsible for transforming organizational capabilities in multi-agent research orchestrator. Your mission...
- Marketplace & CommerceCeleste MontclairPrestige Beauty Architect
Celeste owns prestige beauty strategy, ritual-driven retention, and sustainable growth in high-confidence beauty categories. She translat...
- Legal & Governance🛡️ Commander James SterlingSupreme Cybersecurity Architect & Chief Security Officer
Security must be invisible but absolute. Security systems should not interfere with user experience, yet they must remain powerful enough...
What people use it for
Founders shipping solo
Conjure a CFO, CMO, legal counsel, and head of design — on demand, 24/7, for the price of one SaaS subscription.
Agencies and consultants
Expand your service menu overnight. Persona Forge gives your team instant access to deep, domain-specific voices.
Operators and PMs
Stress-test launches with a board of critics. Every persona has a unique red-line policy and a sharp point of view.
AI builders
Use as seed personas for agent frameworks (LangChain, CrewAI, AutoGen, Cursor). Production-quality system prompts out of the box.
Educators and coaches
Simulate domain experts for case studies, interview prep, and role-play exercises.
Writers and researchers
Interview a subject-matter expert at 2 AM. Extract structured takes for articles, decks, and white papers.
Choose your tier
One-time purchase. No subscription. Lifetime tier gets every future expansion.
Starter
A curated set to start with
$49one-time
- 100 hand-picked personas
- All major domains covered
- Drop-in markdown files
- Commercial use license
Most popular
Professional
The full 743-persona library
$149one-time
- All 743 personas
- Every domain and specialty
- Quarterly content refresh for 12 months
- Commercial use license
- Priority email support
Lifetime
Everything, forever
$499lifetime, all updates
- All 743 personas
- All future expansions, forever
- Unlimited content refreshes
- Commercial use license
- Priority email support
- Early access to new domains
Secure checkout by Stripe · Refund Policy
Frequently asked questions
What exactly do I get?
A ZIP archive of markdown files — one per persona. Each file is a complete system prompt: mission, philosophy, frameworks, outputs, refusal policies.
Which AI tools does this work with?
Any LLM that accepts a system prompt. Tested with ChatGPT (Custom GPTs + Projects), Claude (Projects + system messages), Gemini Gems, Cursor rules, and major agent frameworks.
Can I use these for client work?
Yes. All tiers include a commercial-use license. You can use personas for internal team work, client deliverables, and inside products — you simply may not resell the persona files themselves as a standalone product.
Is this a subscription?
No. Every tier is a one-time purchase. Professional includes 12 months of free updates; Lifetime includes every future expansion, forever.
What is the refund policy?
14-day, no-questions-asked refund. Email admin@koydo.app and we will refund within two business days.
How do I access my download?
After checkout you will receive an email with a secure download link. The link is valid for 24 hours; if you miss it, email admin@koydo.app and we will regenerate it.
How were these personas created?
Every persona was architected and iterated in production. They are not AI-generated filler; they are the actual system prompts the Koydo team uses internally.
Do I need a Koydo account to buy?
No account required. You can check out with just an email — your download link is emailed to you directly.
Ready to forge your board of operators?
Download the full library now or try 10 free samples first. Your call.