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Build an Obsidian vault Claude Code actually reads: five folders, a CLAUDE.md that sticks, five lifecycle hooks, five skills, three subagents. Companion code to the book. Educational software from youcanbuildthings.com.

The boring machinery around your agents: an orchestrator, parallel workers, a gate, a dead-letter queue, a failure locator and a spend cap. Companion code to the book. Python standard library only, no dependencies. From youcanbuildthings.com.

Eleven instruments for measuring what your Claude Code context is doing to your agent, on your repo, with your numbers. Companion code to the book. Educational software from youcanbuildthings.com.

Kill an agent mid-run and watch it finish where it stopped. The fleet package from the book Ship While You Sleep: a SQLite ledger, resumable runs, receipts, leases and a cost governor for five Claude Code agents. Educational software from youcanbuildthings.com.

Measure what a cheaper model does to your own work, then route each task to the cheapest model your numbers say can pass it. Companion code to the book Stop Funding the Frontier. Educational software from youcanbuildthings.com.

The skill files from the book Claude Code Skills: The SKILL.md Playbook, laid out chapter by chapter, plus three shell scripts for auditing a skills library. Educational companion code from youcanbuildthings.com.

Blank fill-in templates, scripts and calculators for running a productized solo design studio. Companion resources to the book. Educational, not an income guarantee, from youcanbuildthings.com.

Keep your design and your code in a two-way loop that never drifts. Companion code to the book Claude Design Sync: Ship the Real App. Educational software from youcanbuildthings.com.

Build an AI trading bot with Claude: screener, options-flow, backtester, prediction markets, multi-agent, risk. Companion code to the book. Runs offline, zero API keys. Educational, not financial advice — from youcanbuildthings.com.

Companion code to 'Use Claude to Build 7 AI Trading Bots' from youcanbuildthings.com

Turn one Claude model into a team: route judgment to Fable 5, typing to cheaper seats. Companion code to the book. Educational — from youcanbuildthings.com.