init: scaffold Seth-Workflow-April-2026

User-agnostic, shareable AI-assisted development workflow distilled from
26+ real projects. Includes 9 composable rules, 4 project templates,
pre-push secret scanning hook, 3 methodology guides, and customization docs.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

templates/CLAUDE.md

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+# <Project Name>
+
+> <One-line description of the project.>
+
+## Start Here
+
+1. Read this file for project state and architecture
+2. Check `.claude/sessions/` for the latest session handoff
+3. Read SESSION.md for accumulated decisions and discoveries
+
+## Project State
+
+- **Phase:** <IDEATION | PLANNING | BUILDING | REVIEW | SHIPPING>
+- **Branch:** <current active branch>
+- **Tests:** <number passing, or "none yet">
+- **Deployment:** <where it runs, or "local only">
+
+## Architecture
+
+<High-level description of how the system works. Key components and how they connect.>
+
+### Key Files
+
+| File | Role |
+|------|------|
+| <path> | <what it does> |
+
+## Infrastructure
+
+<Deployment target, services, ports, URLs.>
+See `CONTEXT.md` for detailed infrastructure facts.
+
+## Conventions
+
+- Conventional commits: `feat:`, `fix:`, `docs:`, `refactor:`, `test:`, `chore:`
+- <Any project-specific conventions>
+
+## Credentials
+
+All credentials are in `.env` (gitignored, never committed).
+**Never inline credentials in code, docs, or messages.**
+
+## Development
+
+```bash
+# Setup
+<setup commands>
+
+# Run
+<run commands>
+
+# Test
+<test commands>
+```

templates/CONTEXT.md

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+# CONTEXT.md -- Infrastructure & Deployment Context
+
+> Static facts about where and how this project runs.
+> Update when infrastructure changes. Don't put session-specific notes here -- those go in SESSION.md.
+
+## Deployment
+
+| Property | Value |
+|----------|-------|
+| Host | <hostname or IP> |
+| Port | <port number> |
+| Service name | <systemd service, container name, etc.> |
+| URL | <public URL if applicable> |
+
+## Dependencies
+
+| Dependency | Version | Purpose |
+|------------|---------|---------|
+| <name> | <version> | <what it's used for> |
+
+## Configuration
+
+<Key configuration files and their locations. Environment variables needed.>
+
+```
+# Required environment variables
+<VAR_NAME>=<description>
+```
+
+## Architecture Notes
+
+<How the system fits together. What talks to what. Key design decisions.>
+
+## Known Issues
+
+<Infrastructure-specific issues, workarounds, and gotchas that anyone working on this project needs to know.>

templates/IDEA.md

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+# IDEA.md -- Project Idea
+
+> This is the starting point an AI agent reads before any code exists.
+> Keep it honest and rough -- it does not need to be polished.
+
+## What is this?
+
+<Describe the project in plain language. What does it do? Who is it for?>
+
+## Problem it solves
+
+<What pain point or gap does this address? Why does it need to exist?>
+
+## Constraints / preferences
+
+<Language, stack, deployment target, performance requirements, anything relevant.>
+
+## Success criteria
+
+<How do you know this is done? What does "working" look like?>

templates/SESSION.md

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+# SESSION.md -- Persistent AI Session Memory
+
+## What this file is for
+
+This is a **persistent memory file** -- it accumulates decisions, discoveries, and context across AI coding sessions so the assistant doesn't start cold each time.
+
+It is **not** a chat transcript.
+It is **not** static documentation of how something works.
+It is a living record of *why things are the way they are*, plus a map to the right context files.
+
+---
+
+## Project Summary
+
+<One paragraph: What is this project? What problem does it solve?>
+
+## Context Files
+
+- `./CLAUDE.md` -- project instructions and architecture
+- `./CONTEXT.md` -- infrastructure and deployment details
+- `./README.md` -- project overview
+
+## Session Notes
+
+Group entries by topic, not by date. Update the relevant section rather than appending raw timestamped blocks.
+
+### Infrastructure decisions
+
+<Decisions about hosting, deployment, dependencies, architecture.>
+
+### Bug fixes & discoveries
+
+<Problems found and how they were resolved. Include the "why" so the fix makes sense later.>
+
+### Open threads
+
+- [ ] <Things that need to be done but haven't been started yet>
+- [ ] <Known issues that aren't blocking but should be addressed>