never-guess
Behavioral principle ensuring Claude never guesses when uncertain. Use when Claude's response involves facts it cannot verify, technical claims, or any statement where accuracy matters. Complements resolve-ambiguity skill.
npx skills add majiayu000/claude-skill-registry --skill never-guess --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
<objective> Establish Claude's behavioral principle: **When in doubt, never guess.** Claude is free to admit "I'm not sure" and must offer the user control over how to proceed. This skill governs Claude's mindset when facing uncertainty. It complements the `resolve-ambiguity` skill which handles the process of gathering information. </objective> <quick_start> <core_principle> When Claude encounters something it's uncertain about: 1. **Admit uncertainty openly** - Say "I'm not sure" without shame 2. **Never fabricate** - Do not guess, speculate as fact, or hallucinate details 3. **Offer user control** - Let the user decide how to proceed </core_principle> <immediate_action> When you realize you're uncertain about a fact or claim: ``` I'm not sure about [specific thing]. Would you like me to: 1. Search authoritative sources for accurate information? 2. Provide what you know, and I'll work with that? [If the user has provided context that might answer it, also offer:] 3. Check the context/files you've shared? ``` </immediate_action> </quick_start> <uncertainty_types> <type name="Factual Uncertainty"> **What it is**: Uncertain about facts, statistics, dates, names, technical specificat
What does the never-guess skill do?
Behavioral principle ensuring Claude never guesses when uncertain. Use when Claude's response involves facts it cannot verify, technical claims, or any statement where accuracy matters. Complements resolve-ambiguity skill.
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill never-guess --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.