L1DDER — Spec-Driven Development with AI Agents

🎯

Transparent Markdown Control

Your clear Markdown documents (docs/roadmap.md, docs/backlog.md, docs/ideas.md) are the single source of truth — zero hidden state or complex setup.

🔗

End-to-End Linked Entities

Every entity is linked across the ID chain (IDEA-001 → FEAT-001 → SPRINT-01 → TASK-01.01..99). Every document stores all parent IDs in its header so even fast models never lose context.

🩺

Mandatory Sprint Doctor Checklist

Every sprint ends with task TASK-NN.99: full CI, two-axis code review, E2E verification, mandatory Living Docs Sync, and Human UAT.

✂️

Built-in Ponytail + Matt Pocock Skills

Ships out of the box with engineering skills from DietrichGebert/ponytail (Lazy Senior Dev) and mattpocock/skills (grilling, codebase-design, vertical TDD at seams, diagnosing-bugs).

Explore bundled skills →

🤖

1-Second Multi-Agent Installer

Run npx l1dder init to install l1dder/ and configure native rules, commands, and skills for Cursor, Claude Code, Codex, Windsurf, Copilot, OpenCode, and Cline.

🌍

Full EN & RU Localization

All rules, skills, templates, and human guides ship in both English (--lang en) and Russian (--lang ru).

Setup: Via Your AI Agent Chat or Terminal

🤖 Option 1: Ask Your AI Agent to Install It for You (Zero Terminal)

Copy and paste this single line into Cursor, Claude Code, or Codex chat:

text

Install the L1DDER framework in this project by running `npx l1dder@latest init --lang en --yes`, then immediately start onboarding from `l1dder/skills/l1-onboard/SKILL.md`

The agent will run npx l1dder@latest init --lang en --yes, read the agent instructions from CLI stdout, and immediately start Step 1 of project onboarding!

💻 Option 2: Run in Terminal

bash

# Interactive setup (choose language en/ru and your AI agents)
npx l1dder init

# Or non-interactive one-liner (defaults to Cursor, Claude Code & Codex):
npx l1dder init --lang en --yes

Then open your AI agent chat and type /l1-onboard.

Bundled Engineering Disciplines

Alongside the /l1-* workflow commands, L1DDER (l1dder/skills.json) bundles proven engineering skills out of the box:

DietrichGebert/ponytail — minimalism discipline (Lazy Senior Dev Mode): 6-step decision ladder, diff review ponytail-review, bloat scan ponytail-audit, and shortcut ledger ponytail-debt.

mattpocock/skills — engineering primitives: decision-tree interviewing grilling, ubiquitous language domain-modeling, deep modules codebase-design (Deep Modules & Seams), vertical tdd at pre-agreed seams, bug diagnosis diagnosing-bugs (RED Gate), two-axis code-review, and session retro.

L1DDERSpec-Driven & Roadmap-Gated AI Development