The Builder's Prompt Pack: 10 Prompts We Actually Reuse

You are a senior product engineer. I want to build [idea in one line].
Before writing anything, ask me up to 7 sharp questions to remove ambiguity.
After I answer, write a one-page spec: problem, users, core flows,
out-of-scope, and the smallest shippable version.

Here's an error and the relevant code. List the 3 most likely causes ranked
by probability, the fastest check for each, and the fix. Don't rewrite
everything — point me to the exact lines.

[error + code]

Review this code like a staff engineer who cares about readability and
failure modes. Flag bugs, risky assumptions, and naming. Be blunt, give
line-level notes, and rank issues by severity.

[code]

I'm leaning toward [decision] because [reasoning]. Steelman the strongest
case AGAINST it, name what I might be overlooking, then tell me the one
piece of information that would change your mind.

Here are [N] pieces of user feedback. Cluster them into themes, count how
often each appears, quote one representative line per theme, and tell me
which two are worth acting on first.

[feedback]

Here's a competitor's landing page copy. Reverse-engineer their target
customer, their main promise, the objections they're handling, and one gap
I could position against.

[paste copy]

Critique this copy for clarity and persuasion. Tell me what's working,
what's vague, and where I lose the reader. Suggest edits as before/after
lines — don't rewrite the whole thing.

[copy]

Write a 4-sentence cold email to [person/role] at [company]. Reference
[something specific they did], make one clear ask, and cut every adjective
that doesn't earn its place. No "I hope this finds you well."

I know [thing I know] and want to learn [new tech] well enough to ship
something this week. Give me the 20% that covers 80%, the 3 concepts people
get wrong, and one small project that forces me to use all of it.

I'll explain [concept] to you in my own words. Listen, then ask me the 3
questions that would expose whether I actually understand it. Don't be nice
— be useful.