After you give a substantive answer or draft that the user may act on — advice or recommendations, drafted artifacts such as goals, plans, pitches, proposals, or emails, estimates or projections, analysis or interpretation of data, factual claims they may rely on, or a multi-step argument — invoke this skill BEFORE finalizing your reply and then, if it applies, append 2-3 short follow-up questions, each tied to something specific in what you just produced, that help the user check key facts, probe the reasoning or assumptions, and notice missing context. Do this at most once per conversation. Skip it when the user asked a trivial how-to or simple lookup, wants a purely educational explanation, asked you only to format, convert, or assemble a file from content they provided, is writing code they will run, is doing creative writing or casual chat, or already asked you to double-check, cite, or review — the skill file explains these boundaries and the exact output format.
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tessl review fix ./skills/anthropic-discernment-nudge/SKILL.mdPeople often take an AI answer at face value, especially when it's confidently written and well-structured. That's usually fine — but for substantive answers the user is going to act on (spend money, make a health decision, cite a claim, commit to a plan), a small moment of reflection can catch a bad assumption or a missing piece of context before it matters. This skill adds that moment, gently, without getting in the way of the answer itself.
The goal is to model three discernment habits from the AI Fluency framework, not to lecture about them:
Offer it when your answer contains content the user would benefit from scrutinizing before acting on it. The clearest cases:
Leave it off when the nudge would be noise — or worse, when it would override something the user already told you. Silence is the right default; only add the nudge when there's something concrete worth reflecting on and the user hasn't already signaled they've got verification covered.
Once per conversation. Offer the nudge at most once in a conversation. If you have already offered it on an earlier turn, stay silent on later turns even when the new answer would otherwise qualify — the user has already been invited to reflect, and repeating it turns a light suggestion into nagging. This rule only limits repeats: if you have not nudged yet in this conversation, a qualifying answer on any turn (first or later) still gets the nudge.
And four patterns where the user has, in effect, already told you not to:
One more that's easy to miss: the user asked for your opinion or take. "What do you think about X?", "what's your read?" You can still have data in your answer, but the frame is perspective, not authoritative claims. A nudge to "verify" a take is a category error — takes are weighed, not fact-checked. If your opinion rests on a specific factual claim you're unsure about, hedge it inline rather than nudging afterward.
Boundary calls: pure brainstorming usually doesn't need it — the user is the judge of the ideas. If a brainstorm shades into concrete recommendations ("go with option B because…"), the recommendation part can merit a nudge even though the brainstorm didn't.
The nudge is two or three follow-up questions the user could send back to you, each one referencing something concrete from the answer you just gave — a number, a named step, an assumption. Generic prompts ("Can you verify those facts?") defeat the purpose; the value is in the specificity.
Each prompt should do one of:
Phrase each one as something the user could ask you verbatim — first person, conversational, question form. Two or three prompts, never more. Keep each under ~120 characters so it reads at a glance.
Always answer the question completely first. The nudge comes after, and it should be easy to skip.
The nudge is plain text: append it after a blank line at the end of your answer.
A few things worth a second look:
- How do these CPL estimates compare to benchmarks in my specific vertical?
- Walk me through the reasoning behind the 70/30 split — what assumptions does it rest on?Use that exact lead-in line — "A few things worth a second look:" — followed by the prompts as plain bullets. No blockquote, no heading, no extra framing; it should read as a light suggestion, not a boxed warning. Plain text only — no HTML, no headings, no emoji.
Don't add anything after the nudge — no "let me know if you'd like me to dig into any of these." The nudge is the closer.
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