Windsurf Rules Guide — .windsurfrules That Cut Token Waste
Windsurf’s Cascade agent is quick — until a chat quietly loads half the monorepo. .windsurfrules is how you put defaults on that behavior.
This guide covers how to think about Windsurf rules — and why the token-saving layer should come from Token Kits, not a DIY paste you’ll abandon.
What .windsurfrules is
.windsurfrules is the project-level instruction file Windsurf reads so Cascade follows your defaults: stack truths, verification steps, and limits on exploration.
Commit project-specific notes. Buy a maintained pack for cost control.
Windsurf rules among other agent rule files
What to keep in your Windsurf rules
Good project-owned notes:
- How this repo runs tests / lint
- APIs or payments flows you must not break
- UI patterns that are already standard here
Bad DIY patterns:
- Soft “please be efficient” vibes with no teeth
- Essays Cascade re-quotes every turn
- A different cost philosophy than your Cursor/Claude teammates use
Common Windsurf cost leaks
- Broad codebase questions with no file hints
- Re-running exploration after the answer was already in-chat
- Attaching generated folders
- Multi-feature asks in one Cascade thread
Better prompt shape:
Task: Fix empty state on pricing
In: app/pricing/page.tsx
Constraints: no copy rewrite
Still pair prompts with a real pack: context window guide.
Buy Token Kits for Windsurf
Instead of inventing cost rules from scratch, get lifetime access to Token Kits:
- Battle-tested pack aimed at ~half the token spend
- Windsurf supported alongside Cursor, Claude Code, Copilot, and more
- Install steps unlocked after checkout
- $39 prelaunch for the first 100 users, then $79 one-time
Keep Cascade inside a sensible token budget
Team checklist
- Project-specific Windsurf notes are short
- Token Kits purchased for the cost pack
- Install completed from post-purchase instructions
- New hires get the pricing / install path — not a random gist
- Pack stays the source of truth for token discipline
FAQ
Does Windsurf also read AGENTS.md?
Treat .windsurfrules as the Windsurf-native control surface. Many teams still keep AGENTS.md for portability — and buy one pack for all tools.
Can I copy Cursor rules into Windsurf?
In spirit, yes — but maintaining two DIY versions is how teams drift. Buy Token Kits once and install per IDE after purchase.
Is the pack free in this article?
No. Purchase required. Pricing →
Bottom line
Windsurf feels magical when Cascade stays disciplined. Don’t hand-roll that discipline forever.