supabase-sql

supabase-sql is a skill for Claude Code from heymitch/ccmb-marketplace. It costs 98 tokens per session (1,599 once invoked), scanned A, original, no licence file.

A database-safety guide for Supabase, a hosted service built around PostgreSQL. It helps choose between the public and server-only database keys and write SQL that respects row-level security, which controls access to individual records.

In plain words
What is it for?
Use it when reading or writing Supabase/PostgreSQL data from server endpoints, especially when working with RLS, service-role keys, or anonymous keys.
Why use it?
It helps prevent server endpoints from exposing private data, unsafe database keys, or aggregates that reveal more than intended.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the claude-code-marketing-bootcamp plugin — 36 skills, 1 command shipped together

Good fit Use it when reading or writing Supabase/PostgreSQL data from server endpoints, especially when working with RLS, service-role keys, or anonymous keys.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/heymitch/ccmb-marketplace/supabase-sql
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.

Any agent
npx skills add heymitch/ccmb-marketplace --skill supabase-sql
Clone the repo
git clone --depth 1 https://github.com/heymitch/ccmb-marketplace

Made for: Claude Code.

Or install claude-code-marketing-bootcamp, the plugin that ships this one along with the rest of its 36 skills, 1 command.

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-sql

README.md
[![agentmods](https://agentmods.dev/badge/skills/heymitch/ccmb-marketplace/supabase-sql.svg)](https://agentmods.dev/skills/heymitch/ccmb-marketplace/supabase-sql)
Your own site
<a href="https://agentmods.dev/skills/heymitch/ccmb-marketplace/supabase-sql"><img src="https://agentmods.dev/badge/skills/heymitch/ccmb-marketplace/supabase-sql.svg" alt="Measured on agentmods" height="20"></a>
Per session 98 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,599 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 $0.00098 $0.01599
Opus 5 $0.00049 $0.00800
Sonnet 5 $0.00020 $0.00320
Haiku 4.5 $0.00010 $0.00160

Measured 8d ago against content hash 1d2669a6a384, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

supabase-sql 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.

plugins/claude-code-marketing-bootcamp/skills/supabase-sql/SKILL.md · 127 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

Files

What ships with it

2 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. 8d ago First seen · 127 lines · 98 tokens per session scan A 1d2669a6a384

Subscribe to this mod's changes

supabase-sql is a skill published in the GitHub repository heymitch/ccmb-marketplace (2 stars, last pushed 3mo ago), with no licence file. It adds 98 tokens to every session and 1,599 once invoked, about $0.0005 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 2026-08-31.

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