lh-zero-to-one SKILL.md skillA

lh-zero-to-one from jrodrigopuca/local-agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add jrodrigopuca/local-agents/lh-zero-to-one@v1.1

Pins v1.1 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
jrodrigopuca/local-agents
Path
stark/skills/lh-zero-to-one/SKILL.md
Versions recorded
3
Latest version
v1.1, committed Oct 22, 2026
First version recorded
Oct 14, 2026
Size
5,428 bytes
Repository stars
2
License
Apache-2.0

Taking a product from nothing to shipped v1: phase rules, riskiest assumption first, walking skeletons, and honest prototype-to-production transitions. Trigger: load when nothing exists yet and nobody depends on it (a new product or an MVP), or when a prototype is being promoted to production. Not for new work inside a product that already has users — even a module built from scratch or kept separate: its users set the phase, and that work is senior-dev's.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

## Critical Patterns

### 1. Kill the riskiest assumption first — and it's usually not technical

Before building anything, name the assumption that kills the product if
false, and test it with the cheapest experiment that can — the method
(ranking assumptions by "how dead is the idea if this is false", fake doors,
concierge versions, five-person prototypes) lives in
[product-manager's `lh-discovery`](../../../product-manager/skills/lh-discovery/SKILL.md)
and is not restated here. The builder's half is the part that bites builders:
the riskiest assumption is rarely "can we build it" (you can) — it's "will
anyone want it", "does the data exist", "will the third party allow it" — and
building the whole machine to test the first domino is the classic 0→1 death.
Know what result of that test means STOP rather than iterate, and write it
down before running it.

### 2. Walking skeleton: end-to-end ugly beats half-built pretty

First construction milestone is always the thinnest possible END-TO-END slice:
real input → real processing → real output, everything hardcoded that can be.
One screen, one path, real data flowing. A walking skeleton finds the
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add jrodrigopuca/local-agents/lh-zero-to-one@sha256:5b31687478fcb55f

The line at the top of this page pins the label v1.1, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_srp5mcgszzxbjl57.svg)](https://markdownregistry.com/a/art_srp5mcgszzxbjl57)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Oct 14, 2026 and Oct 22, 2026, about one every 4 days.

versioncommittedcommitsizeaudit
v1.1 latest2026-10-22 4837560 5,428 BA view · diff
v1.12026-10-14 c8f2f5e 5,276 BA view · diff
v1.12026-10-14 9571e8f 5,187 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5428 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

jrodrigopuca/local-agents · 2 stars · license Apache-2.0 · pushed 2026-10-23 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_srp5mcgszzxbjl57
GET https://markdownregistry.com/api/v1/resolve?ref=jrodrigopuca/local-agents/lh-zero-to-one
GET https://markdownregistry.com/api/v1/blob/5b31687478fcb55f837405ff9b597f9e1e7787c63616adb63cef03dfa8df8bdf

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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