Press play and I will sit next to you while we take prompts apart — the five levers that actually move an answer, the folklore that does not, and a bench for testing your own prompts instead of trusting your gut.
The Workbench · the hero demo
Pick a task. Both sides get the same job. Edit either prompt, run them together, and watch which levers actually moved the answer.
A · the prompt most people type
B · the same job, briefed properly
The rule engine looks for six things in your text: a role, a named reader, an output format, worked examples, hard constraints, and pasted context. Strip one out of B and run it again.
Ch. 1 / The mental model ▶ narrated
Everything you type becomes one thing: the situation the model has to continue. Not a command it obeys — a context it completes. Which is why leaving something out is never neutral. It is an instruction to guess.
It reads what is in front of it and produces what plausibly comes next. That is not a limitation to fight. It is the lever you pull.
so: change what comes beforeSay nothing about length, reader or shape and you have not left it open. You have handed those three decisions to the average of everything ever written.
so: decide them yourselfA bad output is not a verdict on the model. It is a readout of what your prompt failed to pin down. Read it like a diagnosis, not a disappointment.
so: repair, do not re-rollCh. 2 / The craft, named ▶ narrated
Five levers. That is the entire toolkit. Not five tricks — five kinds of information that were missing from your prompt, and each one closes off a different way for the answer to wander.
Not flattery. A role is a vocabulary and a priority. “A support lead triaging inbox mail” tells it what matters and what to skip. “A world-class genius” tells it nothing.
test: does it change the words?The fence. What must not appear, what must be quoted exactly, what to leave out. Constraints are the only lever that removes things, which is why they fix waffle.
test: can you check it was obeyed?One finished answer beats three paragraphs describing a finished answer. Chapter four is entirely this, because it is the highest-leverage thing in the whole workshop.
test: is it a real output, not a description?Table, JSON, five bullets, sixty words. The shape decides whether the answer is usable or whether you spend ten minutes reformatting it by hand.
test: could a script validate it?The lever everyone forgets, because it is not a sentence you type — it is the habit of reading the bad answer as a bug report and repairing one thing.
test: did you change one thing, or all of them?The sixth thing, sitting underneath all five: the actual material. Paste the email. Paste the receipt. Describing your document is not the same as giving it.
test: is the real text in there?Demo · the lever inspector
Paste any prompt you have actually used. This reads it and tells you which levers are present and which questions you left the model to answer for you. No simulated output here at all — it is just reading your text.
Ch. 3 / Your first real skill ▶ narrated
This is the move you will use every day. Six questions, asked in order, each one adding a single line. You do not need to be clever. You need to be specific, in a fixed order, until the guessing stops.
Name a human being with a job and a reason to care. Not “a general audience”.
Table, bullets, JSON, one paragraph. Pick one, name the fields.
A number. Sixty words. Five rows. Three bullets. Numbers are checkable; “concise” is not.
The one failure you keep getting. Ban it by name.
Paste a finished example, even a rough one you typed yourself.
Paste the actual text. Then say: use only what is below.
Demo · the rewrite bench
Pick a weak prompt anyone might have typed. Tick the levers one at a time and watch the rebuilt version assemble itself. Untick one and watch what you just gave back.
Before
After · 0 levers
Ch. 4–12 / Locked
You've heard the setup. The remaining 9 chapters are where The Prompt Workbench actually gets built — the guardrails, the hands-on builds, the full narrated walkthrough and the end-of-workshop check.
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