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Claude For Negotiation Prep

By Nigel Guy · 3 min read

The usual way to prepare for a negotiation is to rehearse your own case — sharpen your ask, tighten your reasoning, get comfortable saying your number out loud. That's necessary and also incomplete, because the actual negotiation isn't a monologue. It's a response to whatever the other side says, and if you've never had to argue their position out loud, their strongest move will land as a surprise instead of as something you already have an answer for.

The mechanism

1. Ask Claude to argue the other side's position, as strongly as it can be argued, not a weak strawman version of it. A negotiation prep exercise only works if the opposing case is genuinely good — practising against a weak opponent teaches you nothing about the real one.
2. Give it the actual context, not a sanitised version. What they've said before, what they're likely to want, what constraints they're probably under. The quality of the rehearsal depends entirely on how real the other side's position is allowed to be.
3. Ask specifically for their strongest counter to your opening ask. Not their overall position — the single sharpest thing they could say back to the specific number or term you're planning to open with.
4. Draft your response to that counter before the actual conversation, not during it. Having thought through the answer once already changes how it lands live, even if you don't use the exact words.
5. Ask where your own position is genuinely weakest, from the other side's point of view. This is the uncomfortable step and the most useful one — it's easy to only prepare for the parts of your case you already feel good about.
6. Rehearse the walk-away, explicitly. What's the point past which you stop negotiating, and what do you actually say when you reach it. Deciding this in the room, under pressure, is worse than deciding it in preparation.

What to skip

Skip asking Claude what number you should actually accept — that's a judgement call resting on your specific priorities, relationships, and risk tolerance, none of which it has full visibility into. Use it to pressure-test your reasoning, not to make the call for you. And skip over-preparing for a negotiation that's genuinely low-stakes and routine; this is worth the full exercise for the ones that matter, not every conversation that has the word "negotiation" near it.

Guardrails

• The other side isn't actually in the room. Claude's version of their argument is a plausible one built from context you provided, not a prediction of what a specific real person will actually say — treat it as a rehearsal partner, not a forecast.
• Anything involving legal terms, formal contracts, or employment negotiations may have constraints (statutory, contractual) that a general rehearsal won't surface — get that checked separately if the stakes justify it.
• The value here is in the thinking-through, not in a script to recite verbatim — a negotiation that goes exactly to plan is rare, and over-rehearsing specific lines can make you brittle when the real conversation goes somewhere you didn't practise.

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