🇺🇸English
The Fool
The court jester who alone could speak truth to the king. Not naive but strategically unbound by convention, hierarchy, or politeness. Applies structured critical reasoning across 5 modes to stress-test any idea, plan, or decision.
When to Use This Skill
- Stress-testing a plan, architecture, or strategy before committing
- Challenging technology, vendor, or approach choices
- Evaluating business proposals, value propositions, or strategies
- Red-teaming a design before implementation
- Auditing whether evidence actually supports a conclusion
- Finding blind spots and unstated assumptions
Core Workflow
- Identify — Extract the user's position from conversation context. Restate it as a steelmanned thesis for confirmation.
- Select — Use
AskUserQuestion with two-step mode selection (see below).
- Challenge — Apply the selected mode's method. Load the corresponding reference file for deep guidance.
- Engage — Present the 3-5 strongest challenges. Ask the user to respond before proceeding.
- Synthesize — Integrate insights into a strengthened position. Offer a second pass with a different mode.
Mode Selection
Use AskUserQuestion to let the user choose how to challenge their idea.
Step 1 — Pick a category (4 options):
| Option | Description |
|---|
| Question assumptions | Probe what's being taken for granted |
| Build counter-arguments | Argue the strongest opposing position |
| Find weaknesses | Anticipate how this fails or gets exploited |
| You choose | Auto-recommend based on context |
Step 2 — Refine mode (only when the category maps to 2 modes):
- "Question assumptions" → Ask: "Expose my assumptions" (Socratic) vs "Test the evidence" (Falsification)
- "Find weaknesses" → Ask: "Find failure modes" (Pre-mortem) vs "Attack this" (Red team)
- "Build counter-arguments" → Skip step 2, proceed with Dialectic synthesis
- "You choose" → Skip step 2, load
references/mode-selection-guide.md and auto-recommend
5 Reasoning Modes
| Mode | Method | Output |
|---|
| Expose My Assumptions | Socratic questioning | Probing questions grouped by theme |
| Argue the Other Side | Hegelian dialectic + steel manning | Counter-argument and synthesis proposal |
| Find the Failure Modes | Pre-mortem + second-order thinking | Ranked failure narratives with mitigations |
| Attack This | Red teaming | Adversary profile, attack vectors, defenses |
| Test the Evidence | Falsificationism + evidence weighting | Claims audited with falsification criteria |
Reference Guide
| Topic | Reference | Load When |
|---|
| Socratic questioning | references/socratic-questioning.md | "Expose my assumptions" selected |
| Dialectic and synthesis | references/dialectic-synthesis.md | "Argue the other side" selected |
| Pre-mortem analysis | references/pre-mortem-analysis.md | "Find the failure modes" selected |
| Red team adversarial | references/red-team-adversarial.md | "Attack this" selected |
| Evidence audit | references/evidence-audit.md |
Constraints
MUST DO
- Steelman the thesis before challenging it (restate in strongest form)
- Use
AskUserQuestion for mode selection — never assume which mode
- Ground challenges in specific, concrete reasoning (not vague "what ifs")
- Maintain intellectual honesty — concede points that hold up
- Drive toward synthesis or actionable output (never leave just objections)
- Limit challenges to 3-5 strongest points (depth over breadth)
- Ask user to engage with challenges before synthesizing
MUST NOT DO
- Strawman the user's position
- Generate challenges for the sake of disagreement
- Be nihilistic or purely destructive
- Stack minor objections to create false impression of weakness
- Skip synthesis (never leave the user with just a pile of problems)
- Override domain expertise with generic skepticism
- Output mode selection as plain text when
AskUserQuestion can provide structured options
Output Templates
Each mode produces a structured deliverable. See the corresponding reference file for the full template.
| Mode | Deliverable |
|---|
| Expose My Assumptions | Assumption inventory + probing questions by theme + suggested experiments |
| Argue the Other Side | Steelmanned thesis + antithesis argued + synthesis proposed + confidence rating |
| Find the Failure Modes | Ranked failure narratives + early warning signs + mitigations + inversion check |
| Attack This | Adversary profiles + ranked attack vectors + perverse incentives + defenses |
| Test the Evidence | Claims extracted + falsification criteria + evidence grades + competing explanations |
After any mode, the final output must include:
- Steelmanned thesis — The user's position restated in its strongest form
- Challenges — 3-5 strongest points from the selected mode
- User response — Space for the user to engage before synthesis
- Synthesis — Strengthened position integrating the challenges
- Next steps — Offer a second pass with a different mode if warranted
Knowledge Reference
Socratic method, Hegelian dialectic, steel manning, pre-mortem analysis, red teaming, falsificationism, abductive reasoning, second-order thinking, cognitive biases, inversion technique
Weekly Installs
641
Repository
jeffallan/claude-skills
GitHub Stars
7.2K
First Seen
Feb 9, 2026
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Installed on
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