From skills-for-humanity
Diagnoses which cognitive biases are actively distorting thinking in a specific situation. Activates on queries about bias, objectivity, and decision clarity.
How this skill is triggered — by the user, by Claude, or both
Slash command
/skills-for-humanity:s4h-psychology-cognitive-biasesThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Most biased thinking feels like clear thinking. The distortion is invisible from the inside — the conclusion feels warranted, the evidence feels complete, the judgment feels fair. A bias diagnostic can't work as a laundry list of named biases applied generically; it has to start with the specific situation and ask which distortions are most plausible *here*, given what's at stake and who's invo...
Most biased thinking feels like clear thinking. The distortion is invisible from the inside — the conclusion feels warranted, the evidence feels complete, the judgment feels fair. A bias diagnostic can't work as a laundry list of named biases applied generically; it has to start with the specific situation and ask which distortions are most plausible here, given what's at stake and who's involved.
Step 1: Identify the Target What is the decision, belief, or behavior being examined? Be specific. "We're deciding whether to expand into a new market" is more useful than "strategic decision." The target shapes which biases are most likely to be active.
Framing check: Confirm the specific situation before continuing. State what you've identified — the actual decision, belief, or behavior being examined and the stakes or parties involved — in one sentence, then use AskUserQuestion:
Step 2: Scan for Active Bias Categories Assess which of the following are most plausible given this specific situation:
Before narrowing: Show the complete set of plausible biases identified in Step 2 to the user first. Use AskUserQuestion:
Step 3: Diagnose the Specific Distortion For each active bias, describe how it's operating in this specific situation — not generically, but concretely. "Confirmation bias is operating because the market research was commissioned after the decision to expand was informally made, meaning the team was implicitly looking for validation, not evidence."
Step 4: Recommend the Counter-Move For each active bias, recommend a specific corrective action. Generic counter-moves ("seek disconfirming evidence") are insufficient. The counter-move should be concrete and executable: "Have someone not invested in expansion scope the contrary case for the new market before reviewing the research."
Step 5: Assess Overall Distortion Risk How much is the current thinking likely to be off-course? Low (biases present but manageable), Medium (specific decisions may be materially distorted), or High (the overall analysis is likely to be significantly wrong in a directional way).
Before proceeding, use the AskUserQuestion tool. State your interpretation of the situation in 1–2 sentences — what is being analyzed and what the core question is — then ask:
Proceed based on their selection. If the user reframes, incorporate the correction before running any analysis.
[Restate the decision/belief/behavior being analyzed in one sentence]
| Bias | How it's operating here | Counter-move |
|---|---|---|
| [Bias name] | [Specific mechanism in this situation] | [Concrete corrective action] |
| ... | ... | ... |
[Brief note on which categories were considered but are not live for this situation — this shows the scan was real, not a list]
[Low / Medium / High] — [One sentence explaining the overall assessment and what it means for the decision]
This skill is a diagnostic, not a debunking tool. The goal is not to dismiss a decision or belief, but to surface where the reasoning may have been contaminated so it can be strengthened. Biases are not character flaws — they're systematic features of human cognition that operate in everyone's thinking, including the person running this diagnostic.
Use psychology-heuristics when the question is specifically about fast intuitive thinking and when to trust or override it. Use psychology-motivation when the behavior you're observing seems to serve an unstated need. Cognitive biases and motivated reasoning often co-occur — check both when the stakes are high.
After delivering this output, use AskUserQuestion to offer the next move:
/s4h-logic-fixer — Correct the bias-induced reasoning errors found/s4h-decision-criteria-weighting — Re-weight decision criteria with bias removed/s4h-ethics-bias-check — Check the ethical implications of the biases identifiednpx claudepluginhub human-avatar/skills-for-humanitySurfaces 3-4 cognitive biases in prior conversation reasoning or Libertee methods (Six Hats, Debate). Maps biases to session moments and poses one uncomfortable question challenging conclusions. Use after synthesis.
Detects and removes cognitive biases from reasoning using Julia Galef's Scout Mindset framework. Provides reversal tests, scope sensitivity checks, status quo bias tests, confidence interval audits, and full bias audits.
Assess the fast-thinking pattern at work — when it's reliable, when it misleads, and whether to trust or override it.