# Lesson

> Add a learned pattern (lesson) that Ralph will remember for future stories.

- Skill: `allierays/lesson` (Agent Skill)
- Install (CLI): `npx skillmds@latest add allierays/lesson`
- Raw SKILL.md: https://api.skillmd.com/api/skills/allierays/lesson/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: allierays (https://skillmd.com/u/allierays)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/allierays/lesson

---


# Add Lesson

The user wants to add a lesson - a pattern or rule that Ralph should remember for all future work.

**Get the pattern from the user.** Ask:
1. What's the pattern or rule? (e.g., "Always use select_related for foreign keys")
2. What category? (frontend, backend, general, testing)

**Then run:**

```bash
npx agentic-loop lesson "THE PATTERN HERE" CATEGORY
```

**Examples:**
```bash
npx agentic-loop lesson "Never hardcode AI model names - use env vars" backend
npx agentic-loop lesson "Always add data-testid for Playwright tests" frontend
npx agentic-loop lesson "Use useCallback for event handlers passed to children" frontend
npx agentic-loop lesson "Always paginate list endpoints" backend
```

**After adding, confirm:** "Added lesson. Ralph will include this in every future story prompt."

**To see all lessons:**
```bash
npx agentic-loop lessons
```