The Diamond Graph
Fan out agent work into isolated worktrees, verify with three lenses that never saw the builder, reduce in plain code, and put a single human gate at the end. What the diamond buys, what it costs, and the failures that shaped it.
4 posts
Fan out agent work into isolated worktrees, verify with three lenses that never saw the builder, reduce in plain code, and put a single human gate at the end. What the diamond buys, what it costs, and the failures that shaped it.
A scheduled cron job, a lost tool connection, and Hermes agent writes a shell script containing an admin token, and ran it five times. Every approval control I had configured failed to fire, and the only warning I saw was about the one write that was blocked.
Most browser agents reach for vision to read a page. The structured web already ships a clean, LLM-ready description of itself in the accessibility tree — built decades ago for screen readers. Vision is the escape hatch, not the default.
Two flavors of AI sandbox, one recurring failure pattern: claimed depth, measured shallow, no threat model. A practitioner's checklist for evaluating sandbox claims before you trust them.