agentic-dev/docs/work/sandcastle-subscription-auth-v1/01-subscription-first/_story.md

id, epic, title, type, status, feature, depends-on, blocks

id	epic	title	type	status	feature	depends-on	blocks
01-subscription-first	sandcastle-subscription-auth-v1	Subscription-first dispatch — mount ~/.claude, install claude CLI, docs	technical-story	in-progress	tooling

Tasks

• Story scaffold
• Update .sandcastle/Dockerfile to install @anthropic-ai/claude-code CLI
• Update scripts/work/dispatch.mjs: resolveClaudeAuth helper + sandbox mount + fallback to API key
• Tests for resolveClaudeAuth
• Update runbook "Using Sandcastle" section: subscription is primary flow
• Update ADR-019: subscription auth as primary, API key as fallback
• Update .env.example + .sandcastle/.env.example: reframe ANTHROPIC_API_KEY as fallback
• Final verification + closeout