identify-assumptions-new
An agent skill by phuryn, from phuryn/pm-skills. Tags: brainstorming, market-analysis, product-strategy, sales, strategy.
What it does
Identify risky assumptions for a new product idea across 8 risk categories including Go-to-Market, Strategy, and Team. Use when evaluating startup risks, assessing a new product concept, or mapping assumptions for a new venture.
Install
With the skills CLI, which installs into Claude Code, Codex, Cursor and other agents:
npx skills add phuryn/pm-skills --skill identify-assumptions-newOr copy the skill folder into Claude Code's skills directory by hand (~/.claude/skills for every project, or .claude/skills inside one):
git clone --depth 1 https://github.com/phuryn/pm-skills
cp -r pm-skills/pm-product-discovery/skills/identify-assumptions-new ~/.claude/skills/identify-assumptions-newSafety box score
Grade A, minimal risk: 0 of 100 risk points, rated 2026-10-20. The grade rates what the skill and its scripts can reach on the machine of whoever installs it, across eight categories from shell execution to secrets access. How the score works.
This skill is a markdown-only product-discovery prompt that asks the agent to analyze assumptions and optionally read user-provided files. It does not ship code, perform network access, or modify the machine; the main consideration is that it may process whatever documents the user gives it.
| Category | Level | Why |
|---|---|---|
| Code & shell execution | 0 (none) | No scripts, shell commands, or code evaluation are present in `SKILL.md`. |
| Network access | 0 (none) | The file only contains static reference links under "Further Reading" and does not instruct the agent to fetch or send anything. |
| Filesystem reach | 0 (none) | It only says to read user-provided files if present and to save the result as markdown; no paths outside the workspace are targeted. |
| Secrets & credentials | 0 (none) | There is no request to access tokens, passwords, keychains, `.env` files, or other credential stores. |
| Privilege & persistence | 0 (none) | No sudo, service installation, shell/profile changes, or other privilege-related actions are described. |
| Instruction hijack surface | 0 (none) | The instructions are straightforward analysis guidance; there is no attempt to override policies, hide content, or follow remote instructions. |
| Irreversible actions | 0 (none) | The skill is advisory only and does not deploy, publish, send messages, pay, book, or delete anything. |
| Transparency | 0 (none) | The entire skill is plain markdown text; there are no binaries, encoded blobs, or generated code paths. |
Before installing
- No special security checks are needed; this skill is plain markdown with no executable components.
- If you will let it read business plans or research files, verify those documents do not contain sensitive data you would not want the agent to inspect.
Rated 2026-10-20 by an automated review of 1 file from the skill's repository.
Source
- Repository
- phuryn/pm-skills (all skills from this repository)
- Path
- pm-product-discovery/skills/identify-assumptions-new/SKILL.md
- Branch
- main
- Updated
- 2026-09-19
Related skills
- monetization-strategy — Brainstorm 3-5 monetization strategies with audience fit, risks, and validation experiments.
- ansoff-matrix — Generate an Ansoff Matrix analysis mapping growth strategies across market penetration, market development, product development, and diversification.
- brainstorm-ideas-new — Brainstorm feature ideas for a new product in initial discovery from PM, Designer, and Engineer perspectives.
- business-model — Generate a Business Model Canvas with all 9 building blocks.
- identify-assumptions-existing — Identify risky assumptions for a feature idea in an existing product across Value, Usability, Viability, and Feasibility.
- interview-script — Create a structured customer interview script with JTBD probing questions, warm-up, core exploration, and wrap-up sections.