learn-prompt-engineering-with-phoebe / Leader session 5 of 6
Learn Prompt Engineering with Phoebe · Leader track · Session 5 of 6

From idea to shipped

Your AI idea is worth nothing until it is specified. This session is the bridge between "we should use AI for this" and a data team that can actually build it - success criteria first, evals as acceptance tests, and the five questions that keep every AI project honest.

🟠 Leader track C-level, boards & managers No tech required Bring one AI idea 30 min self-read · 45 min live
0-3 · Welcome 3-25 · Specify, evals, five questions 25-40 · The brief, live 40-45 · Q&A
Part 0

Where this session sits

Sessions 1-4 made you personally effective with AI: delegate well, ask well, think with it, judge what comes back. From here the track turns outward. Most of the AI value in your organisation will not come from your own chats - it will come from ideas you sponsor and a data team builds. This session teaches you to hand over an idea the way a good product manager would: specified, measurable, and testable. Session 6 adds the risk and strategy layer.

Live - presented in session Self-study - read after class ★ Try it in your next sitting Any model · any chat app
★ What you walk out with today The order that makes AI projects succeed (success criteria before anyone writes a prompt), a plain-language grip on evals - the acceptance tests of AI - and the five questions to ask whenever a team proposes or demos an AI feature. Plus a one-page AI project brief for one of your own ideas, drafted live. Dana from Meridian Retail brings her complaint-handling idea to the data team, and it goes better than her first prompts did.
Part 1 · the order of work

Specify like a PM 8 min live

Anthropic's own guidance to builders starts with a funnel, and the first stage is not a prompt. It is a definition of success: decide what good looks like, in measurable terms, before anyone writes a single line. Teams that skip this stage do not know when they are done - or worse, they think they are done when they are not.

1 · Define success What does good look like? In numbers, agreed up front. 2 · Build the eval Collect real examples and a way to grade every answer. 3 · Draft the prompt Only now does anyone write prompts, wire data, build the tool. 4 · Iterate to the bar Improve until the eval score clears the bar you set in step 1. ⚠ where most teams wrongly start Steps 1 and 2 are leadership work, not technical work. If you cannot say what good looks like, no prompt can.
🔍 Click to zoom - Anthropic's order of work: criteria and evals come before any prompt is written
LiveDana's idea meets the data team3 min▶

Four sessions in, Dana is dangerous in the best way. Her complaint-summary prompt saves her an hour a week, so she walks into the data team's Monday stand-up with the obvious next step: "Let's use AI for complaint handling. Can you build that?"

The team lead does not open a laptop. She asks three questions:

  • "When it drafts a reply to an angry customer, what makes the draft good? Good enough to send?"
  • "On how many real complaints should we test it before a customer ever sees it?"
  • "When it gets one wrong - and it will - who catches it?"

Dana cannot answer any of them yet. That is not a failure; it is the actual work. "AI for complaint handling" is a wish. "Drafts that agents approve without edits 80% of the time, tested on 100 real tickets, agent always reviews before send" is a specification. This session is about learning to bring the second thing.

Real world

The pattern in every company: AI projects rarely die because the model was too weak. They die because nobody defined success, so the pilot drifted for six months and was quietly cancelled. The fix costs one meeting - held at the start.

LiveWhat good success criteria look like3 min▶

Anthropic's documentation asks builders for criteria that are specific, measurable, and achievable - and it names the dimensions worth measuring. None of them require code to understand:

DimensionPlain-language questionExample bar
Task fidelityDoes it actually do the job right?"Correct complaint category on 95 of 100 tickets"
ConsistencyDoes the same input get the same quality every time?"Same ticket, three runs, same category all three"
ToneDoes it sound like us?"9 in 10 drafts approved by a senior agent without tone edits"
LatencyIs it fast enough for the real workflow?"Draft ready in under 10 seconds"
CostWhat does each answer cost at real volume?"Under 4p per ticket at 3,000 tickets a week"

Notice the shape: every bar is a number a non-technical person can check. "Make it good" is not a criterion. "80% approved without edits" is - and it turns every later argument into a measurement.

Self-studyWeak wish vs real specification - side by side2 min read▶
The wish (what teams usually get)The specification (what they can build)
"Use AI to handle complaints""Draft replies to written complaints for agent review"
"It should be accurate""Right complaint category on 95% of a 100-ticket test set"
"It should sound professional""Matches these 5 example replies our best agent wrote"
"It should not make things up""Never promises a refund; escalates to a human instead"
"Soon, ideally""Pilot on one store's tickets by end of quarter, then review"

The right column is the same skill you learned in Session 1 - the anatomy of a good ask - applied at project scale. Goal, context, constraints, format, example. A project brief is a prompt for your organisation.

Part 2 · acceptance tests for AI

Evals: how you know it works 8 min live

An eval is the least glamorous and most important word in applied AI. In business language: an eval is a set of real examples plus a way to grade the answers. It is the acceptance test of an AI feature - and whether your team has one is the single fastest tell of whether they will ship a product or just a demo.

Idea "AI could draft complaint replies" Brief Success criteria, data, owner, cost Prototype Prompt + data, rough but real Eval Graded on 100 real tickets Ship Pilot, monitor, keep measuring misses the bar? fix the prototype, not the launch date The loop between eval and prototype is where quality is made. Teams that skip the eval box ship demos.
🔍 Click to zoom - idea to shipped, with the eval as the gate and the loop back to the prototype
LiveVibes vs numbers4 min▶

Every AI demo you will ever see was graded one of two ways. Learn to hear the difference:

VibesNumbers
"We tried it on a few examples - looks good to me""Graded on 100 real tickets from last quarter"
Tested on the happy cases someone pickedTested on real cases, including the ugly ones
"It feels much better after the last change""The change moved approval from 71% to 84%"
Quality argument = whoever is most senior winsQuality argument = the score wins
No way to notice quiet degradation laterRe-run the eval any time; regressions show up as a number

The grading itself can be simple: humans scoring answers, exact-match checks, or another AI grading against a rubric. Your team will pick the mechanics - the builder track spends two whole sessions there. What leaders must insist on is that grading exists, uses real examples, and produces a number that can be tracked over time.

The sentence that changes the meeting When shown any AI demo, ask: "How many real examples has this been graded on?" If the answer is a number, you have a team building a product. If the answer is a story, you are watching a demo - which is fine, as long as nobody calls it done.
Self-studyWhy demos are easy and products are hard3 min read▶

A demo needs to work once, on an example the presenter chose. A product needs to work on Tuesday's weird ticket, the complaint written in all caps, the one that mentions a lawyer. That gap is where AI projects go to die, and evals are the only honest bridge across it:

  • Evals force realism. Building the test set means reading 100 real tickets - which surfaces the messy cases the idea never considered.
  • Evals de-risk change. New model version? Prompt tweak? Re-run the eval, compare numbers. Without one, every change is a leap of faith. (Session 6 turns this into a governance habit.)
  • Evals end quality theatre. "I do not like the tone" becomes a rubric item with a score, not a taste war between departments.

The wider industry teaches the same lesson - courses on evaluating AI agents now grade not just final answers but each step an AI takes along the way. Your team will meet that depth in the builder track. The leader-level takeaway is one line: no eval, no launch.

Part 3 · your side of the table

The five questions to ask your team 6 min live

You do not need to review prompts or read code. You need five questions - the same five, every time a team proposes or demos an AI feature. They are answerable in plain language, and together they cover context, quality, failure, data, and money.

LiveThe five, and why each matters6 min▶
#The questionWhy it matters
1What context does it see - and how does that stay current?From Session 1: context beats phrasing. An assistant answering from last year's price list fails politely and constantly. "Kept current how, by whom?" is a budget question wearing a technical costume.
2How do we measure it is good - on how many real examples?The eval question. A number means a product; a story means a demo. Also sets the launch bar everyone signs up to in advance.
3What happens when it is wrong - who catches it?It will be wrong sometimes. The design question is whether a human reviews before impact, or the error reaches a customer. "Agent approves each draft" and "auto-send" are different projects with different risk.
4What data goes in - and are we allowed?Customer complaints contain names, orders, sometimes health or payment details. Which system does it flow to, under which agreement? Cheaper to answer now than in a regulator's letter.
5What does it cost per answer at scale?Pennies per answer times 3,000 tickets a week times 52 weeks is a real line item. Latency and cost per answer decide whether the pilot economics survive contact with real volume.
Real world

Back at Meridian: Dana brings the five questions to the complaint-handling kickoff. Question 3 changes the project on the spot - the team had assumed auto-send; the room chooses agent-review-first. Question 5 kills a rival idea the same week: a chatbot whose per-answer cost at real volume was triple the support line it replaced.

Self-studyHow to ask them without micromanaging2 min read▶

These questions are guardrails, not steering wheels. Three habits keep them useful:

  • Ask for the answers, not the mechanism. "How do we measure quality?" is your question. Which grading tool they use is theirs. Judge the bar, not the plumbing.
  • Accept "not yet" as a good answer. "We have not built the eval set yet - that is next sprint" is a healthy team being honest. "We do not need one" is the answer that should worry you.
  • Ask them of vendors too. An AI vendor who cannot answer question 2 about their own product is selling you a demo. The five questions work unchanged in procurement.
The boardroom moment

Work it live: your one-page AI project brief ★ 15 min · work it live

Take the AI idea you brought - the one you have mentioned in meetings but never written down. In fifteen minutes you will turn it into a one-page brief a data team could actually pick up. The trick: do not write the brief yourself. Make the AI interview you first, like the data team lead did to Dana.

Prompt A - the wish, as usually deliveredCan we get some AI for complaint handling? Other retailers are doing it and I keep hearing about it from the board.
Prompt B - the brief-drafting interview (steal this shape)I want to write a one-page AI project brief for this idea: [describe your idea in one or two sentences]. Act as the data team lead who will receive this brief. Ask me the 8 questions a data team would need answered before they could build this - one at a time, waiting for my answer before asking the next. Cover at least: who uses it, what task it does, what a good answer looks like, how we will measure success (on how many real examples), what data it needs and whether we may use that data, what happens when it is wrong, expected volume and cost per answer, and who owns it after launch. When the interview is done, draft the one-page brief with these sections: Goal, Users, Success criteria (specific and measurable), Eval plan (real examples + how we grade), Data needed, When it is wrong, Volume and cost, Owner. If any of my answers were vague, flag them at the bottom as open questions rather than papering over them.

Pick one real idea. The one you would actually sponsor. If you have three, pick the one closest to customers - the stakes make the answers honest.

Run the interview prompt. Answer the questions one at a time, out loud if you are in the room. Notice which question you cannot answer - that is your homework, not a reason to stop.

Check the criteria are numbers. Scan the drafted brief's success criteria. Every one should be checkable by a non-technical person: a percentage, a count, a time, a cost.

Run the five questions against it. Context, measurement, failure, data, cost. The brief should answer all five. If one is missing, add it to the open questions.

Golden-rule it. Show the page to the person next to you, cold. If they can say what is being built, how success is measured, and who catches errors - it is ready for a real data team.

Why the interview beats the blank page Asked to "write a brief", the AI invents plausible answers to questions only you can answer - Session 4 taught you to spot exactly that. Asked to interview you first, it extracts the real answers and drafts around them. Same technique your team will use on you at kickoff; you are just getting there first.
Homework

Three things before Session 6 ◐ 25 min total

Source material

What this session covers

Leader-level coverage of the sources below - working ideas in plain language, honestly flagged where the depth lives in the builder track. Official certificates and videos stay with the vendors; links are in the course map.

✓Anthropic success-criteria docs - specific, measurable, achievablePart 1 · dimensions in business terms: fidelity, consistency, tone, latency, cost
✓Anthropic prompt-engineering overview - the funnelPart 1 · criteria and evals before any prompt (platform.claude.com docs)
✓Evals as acceptance tests - conceptPart 2 · real examples + grading + a trackable number; mechanics in Builder sessions 8-9
◐Evaluating AI Agents (DeepLearning.AI / Arize) - concept lessonsPart 2 · one insight (grade the steps, not just the answer); full taxonomy in Builder session 9
◐Cost, latency and monitoring at scalePart 3 · question level only; production depth in Builder session 10
Check yourself

Three questions before you go 🎯 ◐ 90 seconds

1 · According to Anthropic's own guidance, the first step of an AI project is...

The funnel runs criteria, then evals, then the prompt. Most teams start at the prompt - which is why most pilots cannot say when they are done. Steps 1 and 2 are leadership work.

2 · In business language, an eval is...

Real examples, graded, giving a score you can track over time. It is the acceptance test of AI: re-run it after every change, and quality arguments become measurements.

3 · A team demos an AI feature and says "we tried it on a few examples - looks good to us". The best leader response is...

Vibes vs numbers. You do not need to read prompts - you need to know the quality bar exists, uses real examples, and produces a trackable number. Teams that skip evals ship demos, not products.

Leader session 5 cheat sheet · pin this

Criteria firstDefine success before anyone writes a prompt. If you cannot say what good looks like, no prompt can.
Good criteriaSpecific, measurable, achievable - numbers a non-technical person can check. "Make it good" is not a criterion.
Five dimensionsTask fidelity, consistency, tone, latency, cost. Every AI feature has a bar on each, stated or not.
Eval = acceptance testReal examples + a way to grade + a number you can track. Re-run after every change.
Vibes vs numbers"Looks good to me" vs "graded on 100 real tickets". One ships products, the other ships demos.
The loopIdea, brief, prototype, eval, ship - and the arrow back from eval to prototype. Fix the prototype, not the launch date.
The five questionsWhat context? Measured how, on how many examples? Wrong - who catches it? What data, allowed? Cost at scale?
Interview, then briefMake the AI interview you before drafting - it extracts your real answers instead of inventing plausible ones.