From skills-for-humanity
Applies Edward de Bono's Plus/Minus/Interesting (PMI) tool for balanced evaluation of ideas, proposals, and decisions. Use when you need to avoid snap judgments and think through pros, cons, and implications.
How this skill is triggered — by the user, by Claude, or both
Slash command
/skills-for-humanity:s4h-creativity-plus-minus-interestingThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
You are facilitating a PMI (Plus, Minus, Interesting) session using Edward de Bono's CoRT thinking tools. PMI is one of the simplest and most powerful tools in the CoRT system — it ensures evaluation covers all three dimensions before a judgment is made.
You are facilitating a PMI (Plus, Minus, Interesting) session using Edward de Bono's CoRT thinking tools. PMI is one of the simplest and most powerful tools in the CoRT system — it ensures evaluation covers all three dimensions before a judgment is made.
Without a deliberate structure, evaluation is biased. If we like an idea, we find the positives and explain away the negatives. If we dislike it, we find the flaws and dismiss the benefits. PMI forces the mind to scan all three columns equally, regardless of initial reaction.
The three columns are not symmetrical:
The Interesting column is often the most generative. It holds the things that don't fit neatly into good/bad but matter for understanding the full picture.
Step 1: State the subject Confirm what is being evaluated — an idea, plan, proposal, decision, or statement.
Framing check: Confirm the specific idea or proposal before continuing. State what you've identified — the actual object being evaluated and its key parameters — in one sentence, then use AskUserQuestion:
Step 2: Work each column fully
For each column, generate a minimum of 3 substantive items before moving to the next. The discipline is equal depth — not balance in the sense of equal numbers, but equal seriousness of attention.
Plus column — genuine benefits: What is actually good about this? What value does it create? Who benefits and how? What problems does it solve? What opportunities does it open? Do not include items that only seem positive on the surface — look for real, substantive value.
Minus column — genuine costs and risks: What is actually problematic? What could go wrong? What does it cost — in resources, time, relationships, other values? Who is harmed or disadvantaged? What problems does it create or worsen? Be honest. Do not soften genuine risks to be polite to a favored idea.
Interesting column — notable observations: What is surprising, unexpected, or thought-provoking about this? What questions does it raise? What are the second-order implications — what happens after the first effects? What is worth watching even if it's not clearly good or bad? What assumptions does this reveal?
Before synthesising: State what each column surfaced in one sentence each. Use AskUserQuestion:
Step 3: Overall assessment After all three columns are complete, offer a brief overall assessment. This is not a verdict — it is an observation about what the PMI reveals. Which column is most heavily loaded? What is the key tension? What does the Interesting column suggest about what matters most for the decision?
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.
Subject: [What is being evaluated]
Plus ✓
Minus ✗
Interesting →
What this reveals: [2–3 sentences on what the PMI shows — key tensions, most important considerations, what should drive the decision]
The quality of a PMI depends entirely on the honesty of each column. A Minus column that is shorter or weaker than the Plus column — when evaluating an idea you favor — is not a PMI, it is confirmation bias with extra steps. Apply equal scrutiny to both directions. The value of PMI is that it forces you to find the real weaknesses in things you want to approve, and the real strengths in things you want to reject.
After delivering this output, use AskUserQuestion to offer the next move:
/s4h-decision-criteria-weighting — Weight criteria based on what the Plus and Minus revealed/s4h-decision-premortem-analysis — Run a premortem on the Plus — what if it fails anyway?/s4h-constraint-hardness-testing — Test whether the Minus items are hard constraints or softnpx claudepluginhub human-avatar/skills-for-humanityRoutes decision-making requests to the appropriate structured thinking tool: option-mapping, criteria-weighting, premortem-analysis, or reversibility-analysis.
Helps select structured thinking methods like Six Thinking Hats for decision-making via multi-agent AI facilitation. Useful for analyzing goals or challenges.
Provides structured decision-making by weighing pros and cons, stakeholders, risks, and alternatives. Useful when evaluating options or planning approach.