codevira: Cursor rule for Claude Code

.windsurfrules

windsurfrules is a cursor rule for Claude Code, Windsurf from sachinshelke/codevira. It costs 1,203 tokens per session, scanned A, original, MIT.

A project-memory setup for coding agents. It keeps decisions, past fixes, code relationships, and style preferences available across sessions and development tools.

In plain words
What is it for?
Use it at the start of a session, before refactoring, and when checking earlier architectural decisions or unresolved project work.
Why use it?
It reduces repeated explanations and helps an agent understand the effects of changing a file before it edits related code.

Cursor rule for Claude CodeWindsurf

Written for Claude Code and Windsurf: SessionStart hook event, but also a Windsurf rule. Also seen: mentions Claude Code; mentions Codex.

This is sachinshelke/codevira's own configuration. It tells Claude Code and Windsurf how to work on codevira itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything codevira configures →

Reuse

Borrowing it

Nothing to install: this file belongs to sachinshelke/codevira. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/sachinshelke/codevira/main/.windsurfrules
Clone the repo
git clone --depth 1 https://github.com/sachinshelke/codevira

Made for: Claude Code, Windsurf.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for windsurfrules

README.md
[![agentmods](https://agentmods.dev/badge/rules/sachinshelke/codevira/windsurfrules/github.svg)](https://agentmods.dev/rules/sachinshelke/codevira/windsurfrules)
Your own site
<a href="https://agentmods.dev/rules/sachinshelke/codevira/windsurfrules"><img src="https://agentmods.dev/badge/rules/sachinshelke/codevira/windsurfrules/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for windsurfrules

Your own site · 80×15
<a href="https://agentmods.dev/rules/sachinshelke/codevira/windsurfrules"><img src="https://agentmods.dev/badge/rules/sachinshelke/codevira/windsurfrules.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,203 This file is loaded in full into every session.
When invoked 1,203 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.01203 $0.01203
Opus 5.5 $0.00481 $0.00481
Sonnet 5.5 $0.00241 $0.00241
Haiku 4.5 $0.00120 $0.00120

Measured 1mo ago against content hash 09ec00355855, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

windsurfrules scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.windsurfrules · 84 lines

How it starts

The opening of the file, as written. The whole thing — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Codevira — persistent project memory

This project uses Codevira to give every AI coding tool you use shared memory of the project. Decisions, fix history, the structural code graph, and learned style preferences persist across sessions and across IDEs.

When to call which Codevira tool

Call these MCP tools at the moments the description matches your action — they are fast (tens of ms), token-efficient (summary-by-default), and what makes the project's memory available to you.

At the start of every session

  • get_session_context() — Always call this first. Returns a ~500-token brief: current focus, recent decisions, top open items. Without it you're blind to the project's history.

Before modifying any file

  • get_impact(file_path) — Returns who calls this code (callers, dependents, blast radius). Required before any rename, signature change, or cross-cutting refactor. If callers > a small number, propose a deprecation+migration plan instead of a direct edit.

  • search_decisions(query) — Returns prior architectural decisions touching the topic. Decisions with do_not_revert: true MUST be respected; if your proposed change conflicts, surface the decision to the user and wait for approval before proceeding.

Before adopting a pattern, library, or naming convention

  • search_preferences(category) — Returns this project's coding style (snake_case vs camelCase, error-handling idioms, test layout, etc.). Match these unless the user explicitly asks to change them.

When you fix a bug or land an architectural choice

  • record_decision(...) — Capture the why: what alternatives were considered, why this won, what would force a re-examination. A one-line decision is enough; the value compounds across sessions and across the other AI tools the user opens this project in.

  • For commits that fix a bug, prefer commit messages starting with fix:, bug:, hotfix:, or fixes #N. Codevira scans these into a fix-history database used by the Anti-Regression hero to block silent re-introduction of fixed bugs.

Read the full file on GitHub · 84 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 84 lines · 1,203 tokens per session scan A 09ec00355855

Subscribe to this mod's changes

windsurfrules is a cursor rule published in the GitHub repository sachinshelke/codevira (12 stars, last pushed 1mo ago), licensed MIT. It adds 1,203 tokens to every session, about $0.0048 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-12.