supabase-realtime-optimizer-intelligent

supabase-realtime-optimizer-intelligent is a cursor rule for Cursor from shahshrey/cursor-hub. It costs 111 tokens per session (1,763 once invoked), scanned A, original, no licence file.

A set of guidance for Supabase Realtime, which sends database or application updates to connected clients through WebSockets, a persistent two-way connection.

In plain words
What is it for?
Use it when implementing or debugging Supabase Realtime subscriptions, WebSocket connections, and live message delivery.
Why use it?
It helps diagnose broken connections and reduce unnecessary subscriptions or messages that can slow a real-time application.

Cursor rule for Cursor

Written for Cursor: a Cursor rule (.mdc).

Good fit Use it when implementing or debugging Supabase Realtime subscriptions, WebSocket connections, and live message delivery.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/shahshrey/cursor-hub/supabase-realtime-optimizer-intelligent
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/shahshrey/cursor-hub

Made for: Cursor.

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 supabase-realtime-optimizer-intelligent

README.md
[![agentmods](https://agentmods.dev/badge/rules/shahshrey/cursor-hub/supabase-realtime-optimizer-intelligent.svg)](https://agentmods.dev/rules/shahshrey/cursor-hub/supabase-realtime-optimizer-intelligent)
Your own site
<a href="https://agentmods.dev/rules/shahshrey/cursor-hub/supabase-realtime-optimizer-intelligent"><img src="https://agentmods.dev/badge/rules/shahshrey/cursor-hub/supabase-realtime-optimizer-intelligent.svg" alt="Measured on agentmods" height="20"></a>
Per session 111 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,763 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00111 $0.01763
Opus 5 $0.00056 $0.00881
Sonnet 5 $0.00022 $0.00353
Haiku 4.5 $0.00011 $0.00176

Measured 8d ago against content hash 5fffd72922a9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

supabase-realtime-optimizer-intelligent 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 8d 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.

rules/database/supabase-realtime-optimizer-intelligent.mdc · 273 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 8d ago First seen · 273 lines · 111 tokens per session scan A 5fffd72922a9

Subscribe to this mod's changes

supabase-realtime-optimizer-intelligent is a cursor rule published in the GitHub repository shahshrey/cursor-hub (14 stars, last pushed 8mo ago), with no licence file. It adds 111 tokens to every session and 1,763 once invoked, about $0.0006 per session on Opus 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 2026-08-30.