AI Guides › Claude Mastery
The One Habit That Separates Casual Users From Power Users
By Nigel Guy · 2 min read
Casual use of Claude looks like: ask, read, accept, move on. It's not a bad
habit exactly — most low-stakes requests genuinely don't need more than
that. The trouble is that people carry the same ask-read-accept rhythm into
the requests that actually matter, and never notice they've stopped checking
anything at all.
The rule: the habit that separates casual use from getting real value out
of Claude isn't a prompting trick — it's reviewing the output before you use
it, every time the output is going to do something in the world.
The mechanism: the three-question review
Before using anything Claude produced — sending it, publishing it, running
it, acting on it — ask three questions:
- What in here am I taking on faith? Every number, claim, or code
behaviour you haven't personally verified is something you're vouching
for once you use it. Name those specifically, not just "it looks fine."
- What would embarrass me if it were wrong? Not everything needs equal
scrutiny. A social caption and a client-facing figure carry very
different costs if something's off — spend your checking effort where the
cost actually is.
- Did I check the thing from question two, specifically? Not skim the
whole document again — check the actual claim or figure you flagged as
risky. This is the step people skip; identifying the risk and then
verifying it are two different actions.
Do this quickly for routine work — it can take fifteen seconds. Do it
properly for anything with real consequences. The habit isn't the speed,
it's that the step exists at all, every time, rather than only when
something feels obviously off.
What to skip
Skip full verification on genuinely disposable output — a brainstorm list,
a first-pass outline, anything you're about to rewrite yourself anyway.
Reviewing everything with equal rigour is its own failure mode: it burns the
attention you should be spending on the handful of things that actually
carry risk.
Guardrails
- This habit catches what you think to check. It does nothing for a wrong
claim that sounds so plausible you never thought to question it — for
genuinely important material, get a second pair of eyes, human ones,
where the stakes justify it.
- Reviewing faster than you used to is not the same as reviewing well.
Speed is the payoff of practising this, not the goal of it.
- No amount of review turns a casual glance into due diligence on anything
regulated, contractual, medical, or financial — those need a qualified
professional's sign-off, not just your own careful read.
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