Custom loop.md — Project-Level Default for Bare /loop

A team-config pattern: a loop.md file in the project root overrides the built-in maintenance prompt, so any teammate running bare /loop gets your project's canonical loop — run lint, typecheck, and tests, fix anything red, stop when clean.

Implementation note

When to use: your team runs bare /loop often enough that the built-in default maintenance prompt is a missed opportunity — you want every teammate's reflexive /loop to run your project's canonical checklist instead. How it works: place a loop.md file in the project root; it replaces the built-in maintenance prompt whenever someone runs bare /loop. A typical loop.md: run lint, typecheck, and tests; fix anything red; update the CHANGELOG; stop when clean. Because the file is versioned with the repo, the team's default loop evolves through normal code review. Safety: this is configuration, not a runnable loop itself — the safety of bare /loop becomes whatever your loop.md says, so write an explicit stop condition (stop when clean) and keep the scope conservative, since people will invoke it casually. Note the documented limit: loop.md maxes out at 25KB per Anthropic's docs. Review changes to it like code, because it is code.

Source: claudefa.st ↗graded C · 70/100 — how grades work →

More automation loops