Tell Claude the Reader's Level So It Explains at the Right Altitude
What it is
A calibration step: tell Claude exactly who will read the explanation and what they already know, so it pitches the depth, jargon, and examples at the right altitude — the same concept explained differently for an executive, a practitioner, and an implementer.
Why it works
Without an audience, Claude aims at a vague middle: too technical for the newcomer, too shallow for the expert, useful to neither. Explanation quality is mostly a function of matching the reader's existing model — the right analogy, the right amount of jargon, the right starting point. Naming the reader lets the model choose all of those deliberately instead of averaging.
When to use it
Any explanation with a specific audience — onboarding docs, a concept explainer for stakeholders, a deep-dive for engineers, or the same topic you need to pitch three different ways.
When not to use it
A note to yourself, or when you genuinely want the full-depth version and will filter it down. Skip the calibration when you are the audience and you know your own level.
Prompt
Explain <concept> for this reader: <who they are, what they already know, what they'll do with it>. Match the depth and vocabulary to them — assume what they know, define what they don't, and use an analogy that fits their world. If a term is above their level, either define it in-line or avoid it.Example
Asked to explain caching, Claude gives a product manager 'a copy kept close by so we don't re-fetch — faster pages, staler data if we're not careful', and gives an engineer the eviction-policy and invalidation trade-offs. Same concept, two altitudes, both land.
Advanced version
For docs read by mixed audiences, ask Claude to layer it: a plain-language summary anyone can read, then a 'for implementers' section with the depth. Readers self-select their altitude instead of you guessing one.
Common mistakes
- Leaving the audience unstated and getting a mushy mid-level explanation.
- Asking for 'simple' when you mean 'for an expert who's new to this specific thing' — those differ.
- Using an analogy from a world the reader doesn't live in, which confuses more than it clarifies.