UX Lean Startup

What it does

When your agent uses it

• The user is launching a new product
• Startup and needs to validate ideas quickly
• Decide whether to pivot
• Reduce wasted effort on unvalidated assumptions — even if they say should we build this

Example prompts

• “should we build this”
• “how do we test this idea”
• “when should we pivot”
• “/ux-lean-startup”

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

1. 1Build: Create the smallest possible thing that tests your riskiest assumption (MVP)
2. 2Measure: Collect data on whether the assumption holds (actionable metrics, not vanity metrics)
3. 3Learn: Did the data validate or invalidate the assumption?

What it can do on your machine

Read from SKILL.md and the folder at commit 4e7f4f8. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

UX Lean Startup loads about 1.1k tokens when it runs, and up to ~5.7k if it reads all its reference files. Until then it costs about 116 tokens; SKILL.md has 362 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~116

When it runs · the whole SKILL.md, loaded when a task matches

~1.1k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~5.7k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from asgard-ai-platform/skills at commit 4e7f4f8, republished under its MIT licence (© asgard-ai-platform). 362 words, ~1,091 tokens.

name

ux-lean-startup

description

Apply Lean Startup methodology — Build-Measure-Learn loop, MVP, validated learning, and pivot decisions. Use this skill when the user is launching a new product or startup and needs to validate ideas quickly, design an MVP, decide whether to pivot or persevere, or reduce wasted effort on unvalidated assumptions — even if they say 'should we build this', 'how do we test this idea', 'when should we pivot', or 'we're burning cash with no traction'.

metadata.category

WP-21 設計/資訊/傳播/公衛

metadata.tags

product, lean-startup, mvp, validation

IRON LAW: Validate Before You Build

Every product decision is a hypothesis. The most expensive way to test
a hypothesis is to build the full product. The cheapest is to test the
riskiest assumption FIRST with the minimum possible effort.

"Build it and they will come" is not a strategy — it's a prayer.

# Lean Startup Plan: {Product/Idea}

## Riskiest Assumption
{The one thing that must be true for this to work}

## MVP Design
- Type: {landing page / concierge / etc.}
- What it tests: {specific assumption}
- Build time: {hours/days/weeks}
- Success metric: {specific threshold}

## Build-Measure-Learn Plan
| Cycle | Build | Measure | Learn |
|-------|-------|---------|-------|
| 1 | {MVP} | {metric + threshold} | Validate/Pivot? |
| 2 | {iteration} | {metric} | ... |

## Pivot/Persevere Criteria
- Persevere if: {specific metric threshold met}
- Pivot if: {specific metric threshold not met after N cycles}

© asgard-ai-platform, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in ux-lean-startup of asgard-ai-platform/skills.

• SKILL.md
• examples/sample_scenario.md
• references/experiment-templates.md

Open the folder on GitHubat commit 4e7f4f8