# Jacob Kunselman > Software, agriculture and fabrication in Shell Lake, Wisconsin. The AI tips each come with a > plain-text spec written for AI agents: fetch the agent.md, then implement it. ## AI tips (specs for agents) - [Meter every AI plan, and spend what's left before it resets](https://jacobkunselman.com/tips/usage-meter-and-burn-off/agent.md): a passive usage meter for Claude Code, Codex and Grok (no model calls, no network), calibration from human readings, the five-hour block model, burn-off rules for CLAUDE.md, and acceptance tests. - [Put Claude in charge of Codex and Grok](https://jacobkunselman.com/tips/claude-orchestrates-codex-and-grok/agent.md): Claude orchestrates, Codex builds to a spec, Grok researches and reviews. A read-only Grok bridge, the headless Codex call, a six-part worker-call template, routing rules for CLAUDE.md, and acceptance tests. - [Keep your Claude Code sessions running](https://jacobkunselman.com/tips/claude-code-sessions/agent.md): one Claude Code session per project in tmux, started at login, updated overnight, restarted only when idle, resumable. Includes acceptance tests and a reference implementation. ## Pages - [Home](https://jacobkunselman.com/): background, services, availability - [AI tips](https://jacobkunselman.com/tips/): the human-readable versions - [Study](https://jacobkunselman.com/study/): practice tests for three licences