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supabase

supabase is a skill for Claude Code, Codex from salavender/antigravity-compound-engineering-plugin. It costs 19 tokens per session (327 once invoked), scanned A, a copy of supabase, MIT.

A set of instructions for working with Supabase, a hosted service that provides a database, user login, and backend features for applications.

In plain words
What is it for?
Use it to design schemas, write migrations, create row-level security policies, debug authentication or queries, and review common patterns.
Why use it?
It gives a consistent place to handle database changes, access rules, login problems, and query performance issues.

Skill for Claude CodeCodex

not rated 47 21d ago A scan 19 tokens copy · 100% MIT
View the source file salavender/antigravity-compound-engineering-plugin
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.

agentmods
npx agentmods add skills/salavender/antigravity-compound-engineering-plugin/supabase
Any agent
npx skills add salavender/antigravity-compound-engineering-plugin --skill supabase
Clone the repo
git clone --depth 1 https://github.com/salavender/antigravity-compound-engineering-plugin

Made for: Claude Code, Codex.

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/salavender/antigravity-compound-engineering-plugin/supabase.svg)](https://agentmods.dev/skills/salavender/antigravity-compound-engineering-plugin/supabase)
Your own site
<a href="https://agentmods.dev/skills/salavender/antigravity-compound-engineering-plugin/supabase"><img src="https://agentmods.dev/badge/skills/salavender/antigravity-compound-engineering-plugin/supabase.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 327 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00019 $0.00327
Opus 5 $0.00010 $0.00163
Sonnet 5 $0.00004 $0.00065
Haiku 4.5 $0.00002 $0.00033

Measured 4d ago against content hash 45ce89ebef24, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

supabase 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 4d 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.

Origin

This is a copy

100% identical to supabase — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/examples/supabase/SKILL.md · 47 lines

What it actually says

Supabase Skill

Overview

Provides comprehensive expertise for Supabase development in [PROJECT_NAME] including:

  • Database schema design and migrations
  • Row Level Security (RLS) policy implementation
  • Auth integration debugging
  • Performance optimization

When To Use

  • Creating or modifying database schemas
  • Writing database migrations
  • Implementing RLS policies
  • Debugging Supabase auth or query issues
  • Optimizing database performance

Instrumentation

# Log usage when using this skill
./scripts/log-skill.sh "supabase" "manual" "$$"

What do you want to do?

  1. Create Database Migration → Read workflows/migration-workflow.md
  2. Design RLS Policies → Read workflows/rls-policies.md
  3. Debug Supabase Issues → Read workflows/debugging.md
  4. Design Database Schema → Read workflows/schema-design.md
  5. Review Best Practices → Read references/best-practices.md
  6. See Common Patterns → Read references/common-patterns.md

Quick Reference

Migration Template: templates/migration-template.sql
RLS Template: templates/rls-policy-template.sql
Existing Migrations: backend/migrations/
Supabase Client: lib/supabaseClient.ts

Files

What ships with it

9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago First seen · 47 lines · 19 tokens per session scan A 45ce89ebef24

Subscribe to this mod's changes

supabase is a skill published in the GitHub repository salavender/antigravity-compound-engineering-plugin (47 stars, last pushed 21d ago), licensed MIT. It adds 19 tokens to every session and 327 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to supabase, differing in 0 lines, and is treated as a copy.

Backend and APIsDatabases
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