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---
name: refine-rule
description: 'Audit and slim always-loaded guidance: AGENTS.md, CLAUDE.md, Cursor rules.'
disable-model-invocation: true
---
# Refine rule
Always-loaded files pay their cost every session; prune hardest here. Apply [agent-copy](../agent-copy/SKILL.md); Read it first if not already loaded. Checks specific to rule and memory files:
- **Right file for the audience.** Harness-agnostic guidance in AGENTS.md; harness-specific mechanics in that harness's file (CLAUDE.md, `.cursor/rules/*.mdc`). Cursor rules scope by glob; prefer a scoped rule over an always-apply one.
- **When a skill covers the topic**, the memory file keeps one pointer line. Restated bullets drift from the skill.
- **Delete what context will supply.** "When working on X, do Y" is suspect: Y is often self-evident inside X, visible in the files being edited or surfaced by typecheck, lint, or tests. *Can* be found ≠ *will* be encountered; facts in obscure corners stay written down.
- **Under 50 lines per section.** Longer is sediment.
- **Verify every fact.** Paths, model names, and tool flags rot silently in files nothing typechecks.
