# Product Discovery and Assumption Testing Skills in the pm-skills Repository > Explore product discovery and assumption testing skills in the phuryn pm-skills repository. Master ten specialized skills and five commands for efficient product workflows. - Repository: [Pawel Huryn/pm-skills](https://github.com/phuryn/pm-skills) - Tags: deep-dive - Published: 2026-06-24 --- **The pm-skills repository provides ten specialized skills for product discovery and assumption testing, orchestrated through five high-level commands that automate the entire discovery workflow from interview synthesis to experiment design.** The **phuryn/pm-skills** repository offers a comprehensive, LLM-powered framework for product managers conducting discovery work. These skills cover the full spectrum of **product discovery and assumption testing**, including customer interview analysis, risk identification, and lean experiment design. Each skill is defined in standalone markdown files and invoked through CLI-style commands that chain together into reusable workflows. ## Core Discovery Skills The repository organizes its capabilities into discrete skills located in `pm-product-discovery/skills/`. Each skill targets a specific phase of the discovery process. ### Customer Interview Processing **`summarize-interview`** transforms raw interview transcripts into structured JTBD-focused summaries. Located at [`pm-product-discovery/skills/summarize-interview/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/summarize-interview/SKILL.md), this skill extracts jobs-to-be-done, pain points, and behavioral patterns from unstructured text. **`interview-script`** generates a complete interview guide before you meet customers. As defined in [`pm-product-discovery/skills/interview-script/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/interview-script/SKILL.md), it produces structured scripts covering warm-up questions, JTBD probes, and wrap-up protocols. ### Assumption Identification **`identify-assumptions-new`** surfaces risky assumptions for early-stage concepts across eight risk categories. The definition in [`pm-product-discovery/skills/identify-assumptions-new/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/identify-assumptions-new/SKILL.md) maps risks spanning desirability, viability, feasibility, and usability before launch. **`identify-assumptions-existing`** performs targeted assumption discovery for already-launched products. According to [`pm-product-discovery/skills/identify-assumptions-existing/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/identify-assumptions-existing/SKILL.md), this skill stress-tests new features within live product contexts. ### Assumption Prioritization **`prioritize-assumptions`** ranks discovered assumptions using an **Impact × Risk** matrix. The implementation in [`pm-product-discovery/skills/prioritize-assumptions/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/prioritize-assumptions/SKILL.md) outputs a prioritized table suggesting which assumptions to test first based on potential downside and evidence uncertainty. ### Experiment Design **`brainstorm-experiments-new`** designs lean experiments for new product assumptions. Defined in [`pm-product-discovery/skills/brainstorm-experiments-new/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/brainstorm-experiments-new/SKILL.md), it generates minimal-effort test plans for pre-launch concepts. **`brainstorm-experiments-existing`** creates concrete validation tests for live products. The skill spec in [`pm-product-discovery/skills/brainstorm-experiments-existing/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/brainstorm-experiments-existing/SKILL.md) focuses on experiments that leverage existing user bases and production infrastructure. ### Strategic Planning **`prioritize-features`** ranks backlog candidates by impact, effort, risk, and strategic fit. Located at [`pm-product-discovery/skills/prioritize-features/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/prioritize-features/SKILL.md), this skill operates after assumptions are validated to guide build decisions. **`opportunity-solution-tree`** visualizes the discovery flow from outcome through opportunities to solutions and experiments. The specification in [`pm-product-discovery/skills/opportunity-solution-tree/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/opportunity-solution-tree/SKILL.md) generates OST diagrams for stakeholder communication. **`metrics-dashboard`** defines measurement frameworks for validated learning. As specified in [`pm-product-discovery/skills/metrics-dashboard/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/metrics-dashboard/SKILL.md), it structures North Star metrics, input metrics, and health metrics for ongoing monitoring. ## Command Orchestration The **pm-product-discovery** command set chains individual skills into automated workflows. These commands are defined in `pm-product-discovery/commands/*.md` and provide one-shot execution of complex discovery sequences. - **`/pm-product-discovery:discover`** – Executes the full discovery cycle: interview processing → assumption identification → prioritization → experiment design. - **`/pm-product-discovery:brainstorm`** – Generates ideas and experiments from cross-functional perspectives (PM, Designer, Engineer). - **`/pm-product-discovery:interview`** – Creates an interview script or summarizes a transcript depending on context. - **`/pm-product-discovery:setup-metrics`** – Builds a metrics dashboard for validated learning post-experimentation. - **`/pm-product-discovery:triage-requests`** – Analyzes and prioritizes inbound feature requests using the assumption-testing framework. ## Running a Discovery Workflow To execute a complete **product discovery and assumption testing** cycle, invoke the orchestration commands with specific inputs. ### Full Discovery Session ```markdown /pm-product-discovery:discover ``` This command prompts for: 1. A **customer interview transcript** (or generates one using `/pm-product-discovery:interview`). 2. **Assumption identification** via `identify-assumptions-new` (for new products) or `identify-assumptions-existing` (for live features). 3. **Prioritization** using `prioritize-assumptions` to build the Impact × Risk matrix. 4. **Experiment design** through `brainstorm-experiments-new` or `brainstorm-experiments-existing`. 5. **Metrics definition** with `metrics-dashboard` to establish success criteria. ### Manual Assumption Triage ```markdown /pm-product-discovery:triage-requests ``` When you input a CSV of assumptions, the system executes `prioritize-assumptions` and returns a markdown table: | Assumption | Impact | Risk | Category | Suggested Experiment | |------------|--------|------|----------|----------------------| | Users will adopt a mobile-first UI | High | Low | Usability | A/B test with 2-week pilot | | Enterprise buyers require SSO | High | High | Feasibility | Technical spike with security review | ## Key Implementation Files | File Path | Purpose | |-----------|---------| | [`pm-product-discovery/README.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/README.md) | Module overview and skill catalog | | [`pm-product-discovery/skills/summarize-interview/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/summarize-interview/SKILL.md) | Interview synthesis specifications | | [`pm-product-discovery/skills/identify-assumptions-new/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/identify-assumptions-new/SKILL.md) | New product risk mapping | | [`pm-product-discovery/skills/identify-assumptions-existing/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/identify-assumptions-existing/SKILL.md) | Existing feature risk assessment | | [`pm-product-discovery/skills/prioritize-assumptions/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/prioritize-assumptions/SKILL.md) | Impact × Risk matrix logic | | [`pm-product-discovery/skills/brainstorm-experiments-new/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/brainstorm-experiments-new/SKILL.md) | Pre-launch experiment design | | [`pm-product-discovery/skills/brainstorm-experiments-existing/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/brainstorm-experiments-existing/SKILL.md) | Live product validation tests | | [`pm-product-discovery/skills/prioritize-features/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/prioritize-features/SKILL.md) | Backlog ranking algorithm | | [`pm-product-discovery/skills/opportunity-solution-tree/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/opportunity-solution-tree/SKILL.md) | OST visualization format | | [`pm-product-discovery/skills/metrics-dashboard/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/metrics-dashboard/SKILL.md) | Dashboard specification | | [`pm-product-discovery/skills/interview-script/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/interview-script/SKILL.md) | Interview guide generation | | `pm-product-discovery/commands/*.md` | CLI command definitions | ## Summary - The **pm-skills** repository contains **ten specialized skills** for product discovery and assumption testing, each defined in individual [`SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/SKILL.md) files. - Skills cover the complete discovery lifecycle: **interview synthesis**, **assumption identification** (new and existing products), **risk prioritization**, and **experiment design**. - Five **high-level commands** orchestrate these skills into reusable workflows such as `/pm-product-discovery:discover` and `/pm-product-discovery:triage-requests`. - All skill definitions reside in `pm-product-discovery/skills/` while command orchestration logic is located in `pm-product-discovery/commands/*.md`. ## Frequently Asked Questions ### What is the difference between identify-assumptions-new and identify-assumptions-existing? **`identify-assumptions-new`** maps risks across eight categories for concepts that have not yet launched, focusing on go-to-market uncertainties and initial value propositions. **`identify-assumptions-existing`** targets features being added to live products, stress-testing integration risks, cannibalization concerns, and changes to established user workflows. ### How does the prioritize-assumptions skill determine which experiments to run first? The skill implements an **Impact × Risk** matrix that scores each assumption based on the severity of being wrong (Risk) and the business consequence of the assumption (Impact). High-impact, high-risk assumptions surface first, and the skill suggests minimal-effort experiments specifically designed to invalidate those critical assumptions quickly. ### Can I use individual skills without running the full discover command? Yes. Each skill operates independently through its specific invocation pattern. For example, you can run `/pm-product-discovery:interview` to generate a script, or call `summarize-interview` directly on a transcript without triggering the complete discovery workflow. The high-level commands are conveniences for common sequences, not restrictions on individual skill usage. ### Where are the skill prompts actually defined? The prompt specifications and logic for each skill are stored in [`SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/SKILL.md) files within their respective directories under `pm-product-discovery/skills/`. For instance, the assumption prioritization logic resides in [`pm-product-discovery/skills/prioritize-assumptions/SKILL.md`](https://github.com/phuryn/pm-skills/blob/main/pm-product-discovery/skills/prioritize-assumptions/SKILL.md), while the command orchestration definitions are located in `pm-product-discovery/commands/*.md`.