Produces a reversibility classification that triages a decision before any analysis - labeling it a reversible two-way door or a hard-to-reverse one-way door - and matches the deliberation and sign-off level to that verdict, so reversible calls are made fast and irreversible ones get real rigor. Use when it is unclear how much process a decision deserves, when a team is about to rubber-stamp something irreversible or convene a committee over something trivially reversible, or when a chronically slow org needs a defensible reason to move fast or slow down.
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name
think-one-way-vs-two-way-door
description
Produces a reversibility classification that triages a decision before any analysis - labeling it a reversible two-way door or a hard-to-reverse one-way door - and matches the deliberation and sign-off level to that verdict, so reversible calls are made fast and irreversible ones get real rigor. Use when it is unclear how much process a decision deserves, when a team is about to rubber-stamp something irreversible or convene a committee over something trivially reversible, or when a chronically slow org needs a defensible reason to move fast or slow down.
This is a meta-decision tool: a triage that runs before any option comparison and asks one question - how reversible is this decision? - then matches the deliberation and sign-off to the answer. A two-way door is reversible (walk back cheaply), so decide it fast, low, and light. A one-way door is hard or expensive to reverse, so give it real rigor and senior sign-off. The load-bearing move is separating the reversibility judgment from the decision itself, which routes scarce deliberation toward the irreversible few and licenses speed on the reversible many. The output is a reversibility classification plus a matched deliberation level - it says how much machinery the choice deserves, never which option to pick.
When to Use
A decision is on the table and it is unclear how much process it deserves.
Someone is about to rubber-stamp something irreversible, or convene a committee over something trivially reversible.
A team or org is chronically slow, applying the same heavyweight approval to everything regardless of stakes.
You want an explicit, defensible reason - decided before deliberation starts - to either move fast or slow down.
When NOT to Use
When the decision is already known to be high-stakes and is being analyzed. Triage already happened; you are past this tool. Use a risk tool (premortem) or an option comparison, not a classifier that confirms what you know.
When you need to actually compare options against criteria. That is think-decision-option-review (a criteria-weighted option matrix). This skill triages before any comparison how much analysis the decision warrants; it never scores or recommends an option.
As a license for speed alone. If the irreversible-but-inconvenient consequences (trust, legal, path-dependence) get waved away, the classification is motivated, not honest.
As theater to bless a fast decision by labeling a one-way door a two-way door. The verdict has to be defensible.
For a routine, obviously reversible call with no meaningful reversibility question. Just decide; classifying it is its own small over-process.
Instructions
When asked to triage a decision by reversibility, follow these steps:
State the decision in one line. Name the specific choice being made. If it is already known to be high-stakes and under analysis, or if the request is to compare options, say so and point to the right tool (premortem or think-decision-option-review) instead of classifying.
Test reversibility against named dimensions. For each, state what it would cost to walk the decision back: money, time, trust/reputation, legal/contractual, and foreclosed future options (path-dependence). Do not accept the convenient label; a decision that feels reversible can carry one-way consequences.
Render the verdict. One-way door or two-way door. For borderline cases, state which way it leans and the single dimension that decides it. The verdict follows from step 2, not from how fast someone wants to move.
Match the deliberation level. Two-way door: who can decide it now, with what light analysis, and why slowing it is the real cost. One-way door: the rigor and sign-off it warrants, and a pointer to the heavier tool it should go to next (option comparison, premortem).
Emit the classification artifact and a one-line summary. Produce the artifact in references/TEMPLATE.md. It routes the decision; it does not make it.
Output Format
Use the template in references/TEMPLATE.md. The deliverable is the filled classification (verdict, reversibility dimensions, matched deliberation level) plus a one-line summary, not a prose essay and not a recommendation about which option to choose.
Quality Checklist
Before finalizing, verify:
Reversibility was tested against multiple named dimensions (cost, time, trust, legal, path-dependence), not asserted from the convenient label.
The verdict follows from those dimensions, and borderline cases say which way they lean and why.
The matched deliberation level is concrete: who decides, how much analysis, what sign-off.
A one-way door points to the heavier tool it should now go to (option comparison, premortem); the triage does not pretend to be the analysis.
The output recommends a level of process, never which option to pick.
No overclaiming: the skill claims better-calibrated effort, not a better outcome (see evidence/dossier.md).
Evidence
Tier P (practitioner). The framing comes from Bezos / Amazon shareholder letters and broad management practice; it is internally coherent and targets a real pathology (uniform heavyweight process applied to reversible decisions). There is no controlled evidence that the two-bucket classification improves decision outcomes, speed, or quality versus any other rule, and reversibility is often misjudged. The evidence is transferred from human practice, not AI-validated; the AI value is making the triage cheap, forcing the reversibility question explicit, and producing a durable classification. Full grading, sources, and caveats: evidence/dossier.md.
Examples
See references/EXAMPLE.md for a completed classification on a real decision.
