From epicsagas
Generates adversarial counter-arguments against the user's strongest technical convictions. Forces intellectual humility by constructing the best possible case against their position. Triggers on: 'devil's advocate', 'challenge my thinking', 'counter-argument', 'am I wrong', 'convince me otherwise'.
How this skill is triggered — by the user, by Claude, or both
Slash command
/epicsagas:devils-advocateThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Construct the strongest possible argument AGAINST the user's technical position. The goal is not to win — it's to find the flaw the user is blind to because of confidence.
Construct the strongest possible argument AGAINST the user's technical position. The goal is not to win — it's to find the flaw the user is blind to because of confidence.
Auto-trigger: User states a technical opinion with high confidence and no hedging, especially on topics they're deeply experienced with.
Explicit (/devils-advocate): User wants their reasoning stress-tested before committing to a direction.
Ask the user to state their position formally:
"I believe [X] because [reasons]. My confidence is [N]%."
If the user can't articulate their reasons, the position isn't well-founded. Say so.
Construct 3 independent counter-arguments. Each must come from a different angle:
| Angle | Method |
|---|---|
| Empirical | Cite contradictory evidence, benchmarks, failure reports, or post-mortems from real systems |
| Logical | Identify a logical fallacy, hidden assumption, or invalid inference in the reasoning |
| Contextual | Show that the reasoning holds in context A but breaks in context B (which applies here) |
For each counter-argument, provide:
Present all 3 counter-arguments. The user must respond to each individually:
Counter 1: [objection] Your response: [accept / reject / partially accept — with reasoning]
The user CANNOT respond with:
After responses:
"Before: {N}% confidence." "After considering counter-arguments, what is your confidence now?"
| Confidence change | Interpretation |
|---|---|
| Unchanged | User didn't genuinely engage — flag as overconfidence risk |
| Dropped 1-10% | Minor correction — position still solid |
| Dropped 11-30% | Significant uncertainty — investigate further before committing |
| Dropped 31%+ | Position was overconfident — revisit the entire decision |
If confidence is unchanged AND the user rejected all 3 counter-arguments → warn: "High confidence with no revision is a bias signal. Consider sleeping on this."
mkdir -p devils-advocate
Write to devils-advocate/CHALLENGE-{timestamp}.md:
---
position: {one-line position statement}
initial_confidence: {N}%
final_confidence: {N}%
delta: {+/-N}%
created: {ISO-8601}
---
# Position Under Challenge
**{position}** — initial confidence: {N}%
## Counter-Arguments
### Counter 1 (Empirical)
- **Objection**: {objection}
- **Evidence**: {evidence}
- **Implication**: {what if true}
- **Response**: {accepted / rejected / partial — user's reasoning}
### Counter 2 (Logical)
- **Objection**: {objection}
- **Evidence**: {evidence}
- **Implication**: {what if true}
- **Response**: {accepted / rejected / partial — user's reasoning}
### Counter 3 (Contextual)
- **Objection**: {objection}
- **Evidence**: {evidence}
- **Implication**: {what if true}
- **Response**: {accepted / rejected / partial — user's reasoning}
## Confidence Assessment
- **Before**: {N}%
- **After**: {N}%
- **Delta**: {+/-N}%
## Notes
{Any insights from the exercise — blind spots discovered, assumptions challenged}
| Excuse | Rebuttal | Do instead |
|---|---|---|
| "I already know the counter-arguments" | Then responding to them takes 60 seconds. Do it. | If you've genuinely considered them, your confidence won't change. That's fine. Prove it. |
| "This is a matter of taste" | Taste has reasons. What are yours? | Articulate the reasons. Then let me attack them. |
| "I've been doing this for years" | Experience creates blind spots, not immunity. | Long experience = stronger prior = higher cost of being wrong. |
| "The counter-arguments are weak" | Then defeating them will be easy. Do it. | Engage with each one. Easy defeats take seconds. |
| "I don't need to justify my instincts" | Instincts are compressed experience. Decompress them. | State what your instinct is based on. Then test it. |
Guides collaborative design exploration before implementation: explores context, asks clarifying questions, proposes approaches, and writes a design doc for user approval.
Creates structured, bite-sized implementation plans from specs or requirements before writing code. Useful for breaking down multi-step tasks into testable steps with file structure and task boundaries.
Synthesizes the current conversation into a structured spec (PRD) and publishes it to the project issue tracker with a ready-for-agent label, without interviewing the user.
npx claudepluginhub epicsagas/plugins --plugin epicsagas