# Tag: guardrails · Developer

> The items with the tag, newest first.

- [Caps, gates and routing belong in code](https://yotamfromm.dev/developer/blog/deterministic-gates.md): Every rule I left to an agent's judgment was skipped sooner or later: a stamp-at-the-end reminder that was broken in every one of its 32 failures, a 650,000-token ceiling a run overspent to 1,444,564, a judge that opened 20 of 48 screenshots. This is how I moved those rules into scripts, hooks and exit codes, how I prove each gate can fail, and how you can write one. · [Plain text](https://yotamfromm.dev/developer/blog/deterministic-gates.txt) · lang: en
- [One agent, one worktree: what I decided and what I built](https://yotamfromm.dev/developer/blog/worktree-isolation.md): Two of my own Claude Code sessions kept writing the same checkout, where git lets one stage the other's half-finished edits without any error. Since then every writing agent gets its own git worktree; this is how I set it up, what it costs, and how far a convention carries when the evidence is what I observed, not what I measured. · [Plain text](https://yotamfromm.dev/developer/blog/worktree-isolation.txt) · lang: en

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