Your First AI Prompts on the Job Site
The difference between a useless AI answer and a genuinely helpful one almost always comes down to how you ask. A "prompt" is just the instruction you type. The good news: writing a great prompt is a lot like writing a clear scope of work for a sub -- the more specific you are, the better the result. This lesson gives you a simple framework and prompts you can use on tomorrow's first call.
What You'll Learn
- A simple four-part framework for writing prompts that work
- Ready-to-use starter prompts for plumbers, electricians, and contractors
- How to refine an answer when the first try isn't quite right
- Common prompting mistakes that waste your time
The RCTF Framework
Vague questions get vague answers. Use RCTF -- Role, Context, Task, Format -- and your results jump in quality immediately.
- Role -- Tell the AI who to be. "You are an experienced master plumber..."
- Context -- Give the background. "...quoting a water heater replacement for a homeowner whose 12-year-old tank just failed."
- Task -- State exactly what you want. "Write a friendly text explaining the two options I'm recommending."
- Format -- Say how to deliver it. "Keep it under 120 words, plain language, no jargon."
Put together, that's a prompt that produces something you can almost send as-is. Compare:
Weak: "Write a message about a water heater."
Strong: "You are an experienced plumber. I'm texting a homeowner whose 12-year-old water heater just failed. Write a friendly, reassuring text under 120 words explaining I can install either a standard 50-gallon tank or a tankless unit, and asking when's a good time to call."
Try it yourself. Edit the prompt below and run it:
Starter Prompts You Can Use Today
For Plumbers
"You are a plumber writing a quote follow-up. I gave the Johnsons an estimate three days ago for a bathroom faucet and shutoff valve replacement, $340. Write a short, no-pressure text checking if they have questions and letting them know I can fit them in next week."
For Electricians
"You are an electrician. Explain to a homeowner in simple terms why their bathroom outlets need to be GFCI-protected and why it matters for their safety. Keep it to one short paragraph I can text them."
For Contractors / General Contractors
"You are a remodeling contractor. Turn these rough notes into a clean, itemized estimate with a friendly intro and a line for tax: demo existing deck, build 12x16 pressure-treated deck, new railings, two steps, labor and materials. Leave the dollar amounts blank for me to fill in."
For Any Trade
"Summarize this equipment manual section in 5 plain-English bullet points so I know the key install requirements." (Then paste the text or upload the PDF.)
Refining the Answer
Your first result is a starting point, not the final word. Keep going with simple follow-ups:
- "Make it shorter and friendlier."
- "That's too formal -- write it like a text, not an email."
- "Add a line offering a senior discount."
- "Now give me a version for a commercial property manager instead of a homeowner."
This back-and-forth is normal and fast. Treat it like dialing in a fitting -- a couple of quick adjustments and you're tight.
Common Mistakes That Waste Your Time
- Being too vague. "Write an estimate" gives generic junk. Give the scope, the trade, and the customer type.
- Not setting a role. Telling the AI it's an experienced electrician or plumber instantly improves the tone and accuracy.
- Accepting the first draft blindly. Always read it. Fix any wrong part numbers, prices, or code claims.
- Forgetting the format. If you don't say "text" or "under 120 words," you may get a five-paragraph email.
- Pasting sensitive data. Skip card numbers and full SSNs. First names and job details are plenty.
A Reusable Prompt Template
Save this in your phone's notes and fill in the blanks:
"You are an experienced [trade]. I'm [the situation]. Write a [text / email / estimate / explanation] that [goal]. Keep it [length and tone]. [Anything to include or avoid]."
That single template, with the right blanks filled, handles a huge share of your daily writing.
Key Takeaways
- Use RCTF -- Role, Context, Task, Format -- to turn vague requests into useful results
- Always tell the AI to act as an experienced plumber, electrician, or contractor
- Be specific about the job, the customer type, and the format you want
- Refine with quick follow-ups like "shorter," "friendlier," or "make it a text"
- Read and correct every draft -- AI can get prices, part numbers, and code wrong
- Keep one fill-in-the-blank prompt template saved on your phone for daily use