Experiment & Assumption Sprint

Assign a plan or idea and a PM agent surfaces the riskiest assumptions across eight risk categories, prioritizes them on an Impact x Risk matrix, and designs the cheapest decisive test for each — gated by your approval before anything runs.

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What it installs

Agents 1

  • PM Agent

    A product manager who turns a plan's hidden risks into a prioritized, tested-cheaply experiment plan.

Workflows 1

  • Surface, prioritize, design, self-critique, approve

    Surface the riskiest assumptions, prioritize on the Impact x Risk matrix, design the cheapest decisive test for each, self-critique the plan, and hand off for approval.

Documents 1

  • Experiment log

    The structured log where prioritized assumptions, their cheapest decisive tests, pass/fail signals, and outcomes are recorded.

Skills 4

  • identify-assumptions

    Surface the riskiest hidden assumptions behind a new product or plan across 8 risk categories — Value, Usability, Viability, Feasibility, plus Ethics, Go-to-Market, Strategy & Objectives, and Team — thinking from PM, Designer, and Engineer perspectives and rating confidence and a test for each. Adapted from phuryn/pm-skills/identify-assumptions-new.

  • prioritize-assumptions

    Triage a list of assumptions on an Impact x Risk matrix (Risk = (1 - Confidence) x Effort) and route each by quadrant — Proceed, Experiment, Defer, or Reject — then design a minimal, behavior-measuring experiment with a clear success threshold for the ones that need testing. Adapted from phuryn/pm-skills/prioritize-assumptions.

  • brainstorm-experiments

    Design lean startup pretotype experiments for a new idea: frame an XYZ hypothesis ('at least X% of Y will do Z'), pick 2-3 low-effort validation methods (landing page, explainer video, pre-order/waitlist, concierge MVP), and apply Savoia's skin-in-the-game and your-own-data principles to measure real commitment, not opinions. Adapted from phuryn/pm-skills/brainstorm-experiments-new.

  • pol-probe-advisor

    Select the right Proof-of-Life probe — feasibility check, task-focused test, narrative prototype, synthetic-data simulation, or vibe-coded probe — by working backwards from the hypothesis to match the cheapest method to the harshest truth, with pass/fail/learn criteria and a disposal plan, rather than defaulting to the tool you're comfortable with. Adapted from deanpeters/product-manager-skills/pol-probe-advisor.

Folders 1

  • Experiment Sprint

Get started

Install Experiment & Assumption Sprint and run it with approvals.

Join the waitlist and we will send early access when the first private beta spots open.

Private beta. We invite teams in batches and never share your email.