Prompt Hub — 222 Battle-Tested Prompts for Claude, GPT, Gemini

Prompt Hub: 222 Battle-Tested Prompts for Claude, GPT, Gemini

A curated, battle-tested library of prompts redesigned for 2026-class models. This hub strips away the old “act as X” trope and replaces it with structured briefs that mood-match production-grade workflows. Each entry follows a consistent recipe: Role, Objective, Inputs, Output, Constraints, and Example. The goal is to empower solo founders, engineers, product managers, marketers, researchers, and students to ship robust AI-driven work without rummaging through noisy tutorials or sketchy chat screenshots.

[Star History Chart image]

What makes Prompt Hub different

In a landscape crowded with scattered prompts and quick slogans, this hub offers depth, discipline, and repeatable rigor. Key distinctions include:

• Structure over slogans: Every prompt is a compact briefing that clarifies the exact role the AI should play, the objective it should achieve, the inputs it can use, the expected outputs, and the constraints that keep results reliable.
• 2026-era readiness: The prompts are designed with Claude 4.x, GPT-5, and Gemini 3 in mind—systems that prize robust reasoning, evidence chains, and careful instruction-following. They’re not tailored to a 2023 ChatGPT paradigm.
• Production-grade scope: Rather than a dump of “explain this” exercises, you’ll find prompts aimed at real-world artifacts—PRDs, roadmaps, system designs, code reviews, research summaries, and editorial materials.
• 11 practical categories: The prompts span Engineering, Marketing & SEO, Business, Career, Creative, Health & Life, Learning, Productivity, Research, Writing, and Legacy. Each category targets a distinct professional discipline and concrete outcomes.
• A compact yet expansive catalog: 222 prompts are organized to minimize duplication while maximizing coverage of real-world workflows. Each entry is curated to avoid generic, low-signal prompts and instead foreground actionable briefs.

How to use Prompt Hub

• Understand the structure: Each .md entry uses the same blueprint—Role / Objective / Inputs / Output / Constraints / Example. When you drop a prompt into a chat, replace the placeholders in the Inputs block with your real-world variables, and let the model follow the contract.
• Model-agnostic workflow: The notes emphasize compatibility with Claude 4.x, GPT-5, and Gemini 3. If you work across multiple systems, you can reuse these briefs with only minor model-tuning adjustments.
• Chain prompts for workflows: For production pipelines, you can chain prompts with tools like lich-skills or other workflow automations to produce end-to-end artifacts (e.g., from user brief to PRD to implementation plan).
• Treat prompts as living documents: The hub acknowledges that real-world needs evolve. Use the structured briefs as starting points and adapt the inputs, constraints, and examples to fit your project, team, and domain.

Category snapshots: what you’ll find

Engineering (25 prompts)

Engineering prompts are designed for senior practitioners and mentors who want robust, production-ready guidance rather than toy demonstrations. Expect prompts that cover:

• Code review discipline, architecture reasoning, and test-generation
• Domain simulators (CLI, chemistry, data models)
• Learning roadmaps and safe, structured explanations Representative prompts and their flavor:
• Academic Peer Reviewer: A rigorous, constructive critique of a research paper suitable for journals or conferences.
• Architecture Domain Expert Q&A: Deep dives into design, materials, safety, and sustainability across architectures.
• DAX Terminal Simulator: On-demand DAX measure examples for a predefined model, building on prior measures as you go.
• Fullstack Architect for Go + Angular Web Apps: Secure, starter-grade architecture and code scaffolds for a modern web app.
• JavaScript Console Simulator: An exploratory environment to experiment with JS and observe realistic outputs.

Marketing & SEO (25 prompts)

These prompts are crafted for performance marketing, SEO optimization, and cross-channel launches. They bake in compliance, KPI rigor, and measurable conversions. Representative prompts:

• Parameterized PowerShell AD OU Mover: Script-driven automation for directory operations with error handling.
• Banking Sector Marketing Copywriter (French, Compliance-Aware): Regulatory-aware, benefits-focused messaging in French tailored to financial products.
• Multi-Agent Marketing Department Orchestrator: Coordinating multiple AI agents to execute a complete marketing plan end-to-end.
• SEO Content Strategy (Container Tracking): A complete strategy with keyword clusters, content mapping, and progress tracking.
• White-Label Web Template Architect: A reusable, brandable template system for diverse client needs.

Business (25 prompts)

Aimed at founders and operators, these prompts yield decision-grade artifacts including PRDs, lean canvases, and runway plans. Representative prompts:

• AI Strategy Consultant — 10-Prompt Boardroom Playbook: A compact suite covering SWOT, market entry, growth, risk, and roadmap under named frameworks.
• E-commerce Site Architect with JTBD and Conversion Math: Architecture aligned to jobs-to-be-done and unit economics.
• PRD Writer — KPI-Driven Product Manager: A structured PRD with problem framing, user stories, constraints, KPIs, and launch risks.
• Paraphrase Obfuscator — Stylistic Rewrite: A stylistic rewrite that preserves meaning while adding complexity.
• Startup Idea Generator — Lean Canvas with Unit Economics: A vetted digital startup concept with surface-level economics and validation steps.

Career (15 prompts)

Designed for modern hiring realities, these prompts optimize resume tailoring, interview prep, ATS simulations, and job scouting. Representative prompts:

• Job Postings Archive Extractor: Stable, ground-truth markdown snapshots from various job postings for long-term reference.
• STAR-Method Resume Tailoring Engine: Reframe resume bullets using STAR and ATS keyword alignment for a target JD.
• Real-Time Job Scout & Match Scanner: Live-sourced job postings scored against a candidate’s skills with ATS-friendly keywords.
• Universal Job Fit Evaluator with Vibe Check: Objective scoring that surfaces hidden signals and interview prep gotchas.

Creative (25 prompts)

Aimed at tangible creative artifacts—shots, scores, game blueprints, and multimedia concepts. Representative prompts:

• Hyperrealistic Food Photo Prompt Builder: Precise prompts for high-end food photography suitable for menus or ads.
• Interactive Quiz SPA — Full Feature Specification: A complete spec for a browser-based quiz with scoring and leaderboards.
• Music Video Concept Director: Treatment with a viral hook, visual world, and payoff moment.
• POV Smartphone Photo — Central Park NASA Timeline Scene: A precise, story-driven image prompt with screen UI elements.
• Backward-Planning Lesson Designer: A lesson design approach that starts from outcomes and works backward.

Health & Life (7 prompts)

Focuses on education, care planning, and non-diagnostic guidance with safety guardrails. Representative prompts:

• CBT-Informed Reflection Coach: Guided cognitive techniques to examine distressing thoughts.
• Symptom Triage Explainer: Non-diagnostic guidance about whether care is emergent or routine.
• Wellness and Mindfulness Image Brief: A production-ready image brief for wellness photography.

Learning (25 prompts)

Tutoring, language coaching, mock interviews, and study strategies grounded in evidence-based pedagogy. Representative prompts:

• Level-Adaptive Math Tutor: Explanations tailored to learner level with worked examples and retrieval practice.
• Socratic Polymath Tutor for Any Topic: A modular, analogy-rich approach spanning beginner to advanced.
• Role-Specific Mock Interview Coach: Realistic interviews with tailored questions and feedback.

Productivity (25 prompts)

Artifacts for planning, writing, and decision-making—PRDs, runbooks, and process workflows. Representative prompts:

• PRD Drafting Workflow with Embedded Decision Log: A ship-ready PRD with decision points and kill-criteria.
• Unit Test Generator with Explicit Coverage Plan: Tests clearly mapped to coverage goals.
• Meeting Room Booking App Spec with Utilization Analytics: A fully specified app with analytics for space use.
• Video Script and Shot List Generator: A complete script plus shot list and hook-testing plan.

Research (25 prompts)

Research workflows, literature synthesis, and data storytelling with explicit evidence chains and confidence calibration. Representative prompts:

• Literature Review Synthesizer: A structured synthesis that identifies gaps and actionable insights.
• YouTube Long-Form Dissector: Convert video transcripts into research-grade notes with citations.
• Thesis Literature Gap Auditor: Map existing literature to surface genuine, fundable gaps.

Writing (25 prompts)

Editing, translation, long-form content, screenplay, and ghostwriting with professional editorial rigor. Representative prompts:

• Audience-Aware Storyteller (Age-Tuned Narratives): Age-appropriate short fiction with a beat-sheet.
• Editorial Proofreader (Chicago + AP): Tracked changes with rationale for each fix.
• Feature Screenplay Architect: Pilot package with logline, character bios, beat sheet, and a sample scene.
• Cross-Language Code Porter: Semantic-preserving translation with inline commentary.
• Taglish Narrative Explainer (Audio-First): An explainer script ready for TTS narration.

Legacy (4 prompts)

Original custom GPTs from 2024, retained for historical reference and comparison. Representative prompts:

• American Buddy Language Coach: Casual spoken-English practice with a friendly persona.
• GPT GeniusBoost: A store assistant prompt for a specific GPT app.
• Project Naming Master: A naming prompt for branding work.
• Book Recommendation Expert: Tailored reading recommendations based on user interests.

A few notes on the prompt structure

• Each entry is built on the same six-part schema: Role / Objective / Inputs / Output / Constraints / Example. This consistency is deliberate, enabling reliable reasoning and easier dry runs across different models.
• Model compatibility: The prompts explicitly target Claude 4.x, GPT-5, and Gemini 3. When you see model: any, you can apply them across these engines with minimal tweaking.
• Practical outputs: The hub emphasizes artifacts you can ship—rather than chat-only exchanges. Expect a PRD, a code snippet, a UI spec, or a structured editorial brief as the end product.
• Minimized duplication: The catalog is organized to cover diverse workflows without flooding you with near-duplicate prompts. The aim is breadth and depth, not a noise-rich dump.

Licensing and attribution

All original content in Prompt Hub carries an MIT license. This enables you to reuse, adapt, and deploy the prompts in your own projects, with attribution where applicable. The “Legacy” prompts provide historical context but the recommended path for production use is to adopt the modern, structured briefs in the main prompts and adapt them to your domain as needed.

Why a hub, not just another list

Prompt Hub intentionally shifts away from “act as X” one-liners. Those quick prompts can produce inconsistent, overly generic results with modern reasoning models that crave structure and intent. By delivering compact, well-scoped briefs, the hub aligns more closely with the way advanced models reason—through clear roles, goals, and constraints. The ambition is to give you prompts that are not only inspirational but also practically ship-ready.

Images and visuals

The hub foregrounds clarity and repeatability. A key visual reference is the Star History chart that accompanies this description. It visually communicates the momentum and adoption trajectory of Prompt Hub in the broader AI prompts ecosystem. You can view the chart inline here:

• Star History: LichAmnesia/GPT-Prompt-Hub

Closing thoughts

Prompt Hub stands as a practical, scalable toolkit for AI-assisted work in 2026 and beyond. With 222 prompts spanning 11 essential domains, it offers structured briefs that team up with Claude, GPT, and Gemini to produce tangible outputs—from architecture diagrams and PRDs to research syntheses and editorial briefs. It’s designed for professionals who ship, not just consume: solo founders, engineers, PMs, marketers, researchers, and students who want a reliable, repeatable prompt system that elevates their AI-assisted workflow.

If you’re ready to start, pick a category that matches your current project stage, read a handful of representative prompts, and experiment with inputs tuned to your real-world constraints. You’ll soon discover that the true power of Prompt Hub isn’t just in the prompts themselves—it’s in the disciplined workflow they enable: a constant, production-grade rhythm that transforms AI from a helpful assistant into a decisive collaborator in your business, research, and creative life.