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Millie Marconi Profile picture
@MillieMarconnni
Jun 20, 2025 • 13 tweets • 5 min read • Read on X
Scrolly
Grok 3 is secretly a productivity beast.

Use it like this and it replaces:

→ a VA
→ a researcher
→ a content writer
→ even a junior dev

10 crazy-useful prompts:
1. Find a coupon online using Grok’s Deep Search

Tired of opening 12 sketchy tabs for a working promo code?

Grok can do the dirty work for you.

• Searches forums, subreddits, and obscure blogs
• Ignores fake or expired codes
• Pulls the most recent working coupons
• Formats them cleanly for copy/paste
2. Decode any PDF like a pro

Got a 50-page whitepaper or report sitting unread?

Let Grok rip through it in seconds:

• Finds the insights
• Breaks it into summaries
• Answers questions from the doc
• Saves hours of scanning
3. Build apps without writing a line of code

Grok 3 doesn’t just suggest code it writes working prototypes.
You can:

• Design full-stack apps
• Generate frontend + backend
• Integrate APIs
• Deploy-ready in minutes
4. Write content like a human, not a bot

No more ChatGPT-sounding blog posts.

Grok writes with structure, flow, and authority:

• Matches your voice
• Pulls in research + stats
• Formats for SEO
• Actually useful to readers
5. Research anything 10x faster

Instead of endless Google tabs, ask Grok for structured answers.
It’ll:

• Pull live data from X
• Summarize key insights
• Compare viewpoints
• Recommend further reading
6. Build marketing strategies in one prompt

Launching a product? Don’t guess.

Grok can:

• Analyze your niche
• Draft full funnels
• Write ad copy
• Plan social media
7. Turn your chaos into clarity

Voice note, scribbled idea, wall of text Grok turns it into gold.
Use it to:

• Structure messy notes
• Rewrite for clarity
• Extract main ideas
• Format into posts or docs
8. Grow your social audience with 0 guesswork

You don’t need a team to go viral.

Grok can:

• Write hooks that hit
• Analyze what’s working
• Repurpose across formats
• Suggest trends to chase
9. Learn anything in 30 days (with structure)

Don’t let YouTube algorithms plan your education.

Let Grok be your personal tutor:

• Custom learning plans
• Daily goals
• Integrated resources
• Progress checkpoints
10. Automate your life with “Tasks”

xAI just added a killer feature: Tasks

They work like ChatGPT's automations, but smarter.

You can:

• Create recurring jobs
• Set triggers (weekly, daily)
• Get results in your DMs
P.S.

Want your LinkedIn posts to go viral?

Use TestFeed.

Stop guessing and test your content first. I've changed my writing with it.

Join the waitlist → testfeed.ai
I hope you've found this thread helpful.

Follow me @Yesterday_work_ for more.

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More from @MillieMarconnni

Millie Marconi Profile picture
Feb 14
After 2 years of writing with Claude, I can say it's the tool that revolutionized my content creation more than Grammarly, Hemingway, and every writing course combined.

Here are 10 prompts that transformed my writing and could do the same for you: Image
1. The 5-Minute First Draft

Prompt:

"Turn these rough notes into an article:

[paste your brain dump]

Target length: [800/1500/3000] words
Audience: [describe reader]
Goal: [inform/persuade/teach]

Keep my ideas and examples. Fix structure and flow."
2. Headline Machine (Steal This)

Prompt:

"Topic: [your topic]

Write 20 headlines using these formulas:
- How to [benefit] without [pain point]
- [Number] ways [audience] can [outcome]
- The [adjective] guide to [topic]
- Why [common belief] is wrong about [topic]
- [Do something] like [authority figure]
- I [did thing] and here's what happened
- What [success case] knows about [topic] that you don't

Rank top 3 by click-through potential."
Read 13 tweets
Millie Marconi Profile picture
Feb 13
This is really wild.

A 20 year old interviewed 12 AI researchers from OpenAI, Anthropic, and Google.

They all use the same 10 prompts and you've probably never seen them.

Not the ones on X. Not the "mega prompts." Not what courses teach.

These are the prompts that actually ship frontier AI products.

Here's the prompts you can steal right now:Image
1. The "Show Your Work" Prompt

"Walk me through your reasoning step-by-step before giving the final answer."

This prompt forces the model to externalize its logic. Catches errors before they compound.
2. The "Adversarial Interrogation"

"Now argue against your previous answer. What are the 3 strongest counterarguments?"

Models are overconfident by default. This forces intellectual honesty.
Read 12 tweets
Millie Marconi Profile picture
Feb 12
I finally understand why my complex prompts sucked.

The solution isn't better prompting it's "Prompt Chaining."

Break one complex prompt into 5 simple ones that feed into each other.

Tested for 30 days. Output quality jumped 67%.

Here's how: 👇 Image
Most people write 500-word mega prompts and wonder why the AI hallucinates.

I did this for 2 years with ChatGPT.

Then I discovered how OpenAI engineers actually use these models.

They chain simple prompts. Each one builds on the last. Image
Here's the framework:

Step 1: Break your complex task into 5 micro-tasks
Step 2: Each prompt outputs a variable for the next
Step 3: Final prompt synthesizes everything

Example: Instead of "write a viral thread about AI" →

Chain 5 prompts that do ONE thing each. Image
Read 10 tweets
Millie Marconi Profile picture
Feb 10
OpenAI engineers don't prompt like everyone else.

They don't use "act as an expert."
They don't use chain-of-thought.
They don't use mega prompts.
They use "Prompt Contracts."

A former engineer just exposed the full technique.

Here's how to use it on any model: 👇
Here's why your prompts suck:

You: "Write a professional email"
AI: *writes generic corporate bullshit*

You: "Be more creative"
AI: *adds exclamation marks*

You're giving vibes, not instructions.

The AI is guessing what you want. Guessing = garbage output. Image
Prompt Contracts change everything.

Instead of "write X," you define 4 things:

1. Goal (exact success metric)
2. Constraints (hard boundaries)
3. Output format (specific structure)
4. Failure conditions (what breaks it)

Think legal contract, not creative brief. Image
Read 13 tweets
Millie Marconi Profile picture
Feb 9
Stop using "act as a marketing expert."

Start using "act as a marketing expert + data analyst + psychologist."

The difference is absolutely insane.

It's called "persona stacking" and here are 7 combinations worth stealing:
1/ Content Creation

Personas: Copywriter + Behavioral Psychologist + Data Analyst

Prompt:

"Act as a copywriter who understands behavioral psychology and data-driven content strategy. Write a LinkedIn post about [topic] that triggers curiosity, uses pattern interrupts, and optimizes for engagement metrics."

Result: Content that hooks AND converts.Image
Image
2/ Product Strategy

Personas: Product Manager + UX Designer + Economist

Prompt:

"Act as a product manager with UX design expertise and economic modeling skills. Analyze this feature request considering user experience, development costs, and market positioning. What's the ROI?"

Result: Decisions backed by multiple frameworks.Image
Image
Read 12 tweets
Millie Marconi Profile picture
Feb 5
Most people use Perplexity like a fancy Google search.

That's insane.

It's actually a full-blown research assistant that can compress 10 hours of analysis into 20 seconds if you feed it the right prompts.

Here's what actually works: Image
1. Competitive Intelligence Dashboard

Prompt I use:

"
Create a competitive analysis for [COMPANY/PRODUCT] covering:

1. Recent product launches (last 90 days)
2. Pricing changes (with before/after if available)
3. Customer sentiment (Reddit, Twitter, G2 reviews - categorize positive/negative themes)
4. Technical stack (from job postings and tech blogs)
5. Funding/financial news (any recent rounds, partnerships, layoffs)

Format as a table:
| Category | Key Findings | Source Date | Impact Assessment |

Focus on information from the last 30 days. Cite every claim.
"
2. Technical Comparison Matrix

Prompt:

"
Compare [TOOL A] vs [TOOL B] vs [TOOL C] for [SPECIFIC USE CASE]:

Build a decision matrix:
| Feature | Tool A | Tool B | Tool C | Winner & Why |

Must include:
- Pricing (exact tiers, hidden costs)
- Performance benchmarks (from independent tests)
- Integration options (with [MY STACK])
- Community size (GitHub stars, Discord members, Stack Overflow activity)
- Recent updates (last 3 months)
- Known issues (from issue trackers, Reddit)

Rank overall winner with confidence score (1-10) and reasoning.

Cite every benchmark and review.
"
Read 13 tweets

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