PromptSharp › Daily briefs › July 20, 2026
PromptSharp Daily · free web issue · #66Prompt of the day
July 20, 2026 · the free cross-vertical sampler: get better at AI and prompting, and see the sharpest prompts from across the network. Today's comes from Trading.
Stress-test your position-sizing rules before the market does
You have sizing 'rules' you mostly follow. Find out where they break — in a conversation, not in a drawdown.
Act as a risk-management TEACHER (not an advisor — this is educational analysis of my own process, not investment advice; do not recommend any specific security, position, or trade). I will describe my position-sizing rules and account context in general terms. Your job:
A) RESTATE my sizing rules as explicit IF/THEN logic, flagging anything vague ('I size down when unsure') that isn't actually a rule.
B) STRESS SCENARIOS — walk my rules through: 3 losing trades in a row; a position gapping through my planned exit; correlated positions moving together; volatility doubling. For each, show what my rules would have me do and where they're silent.
C) THE HOLES — the top 3 situations my rules don't cover, phrased as questions I need to answer for myself (do NOT answer them with recommendations).
D) TEACH — explain the general principle each hole relates to (risk-of-ruin, correlation risk, gap risk) in plain language with a generic numeric illustration.
My sizing rules & context: [DESCRIBE — e.g. 'I risk a fixed % per trade, max N open positions, no rule for correlated names']
Rules: Never tell me what to buy, sell, or how large any real position should be. If I ask for a pick or a target, refuse and return to process. This is education about MY rules, not advice.Use AI today — a workflow to steal
Turn any meeting recording into decisions + owners
The follow-up email is where most of a meeting's value leaks away. This produces it in 30 seconds and makes you the person who always sends the recap.
Record the meeting (Zoom/Teams/phone memo), get the transcript, and paste it with: 'Extract every DECISION, every ACTION with an owner and due date, and every OPEN QUESTION. Table format.'
- Grab the transcript (most tools export one).
- Run the extract prompt.
- Skim, fix names, send as the recap.
Sharpen it: Treat it as a conversation, not a vending machine. The magic is in the second, third, and fourth message — 'more specific,' 'shorter,' 'now for executives' — not the first.
Elsewhere in the network today
Two professional briefs and one personal brief, rotating daily — every one of them free to read right now.
Consulting & Strategy
Today in Consulting & Strategy: Hypothesis tree: break a fuzzy client question into testable branches
Product Management
Today in Product Management: Interview synthesis: turn user calls into jobs-to-be-done, not feature requests
Travel Planning
Today in Travel Planning: The honest trip budget — including what always gets forgotten
What changed in AI today
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Re-run your single most-repeated task on the newest model. Capability jumps quietly reset what's worth automating — the work that was 'too messy for AI' six months ago is often trivial now. Re-test,…
Snapshot: Stock Declines Accelerate After Chinese Startup Releases New AI…
Read this as a signal, not a to-do. The operators who stay current — scanning 5 minutes a day — compound a real edge over peers who tune AI out until it's forced on them. File it, watch the trend,…
🔔Opening Bell Daily: AI King Apple
No action required today — but note it. The operators who keep a running map of where AI is moving spot the shift that touches their work weeks before the ones who wait to be told. Log it and move on.
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