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.
npx skills add yuchenbigpen1/normies --skill supabase-expertgit clone --depth 1 https://github.com/yuchenbigpen1/normiesWrote 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.
[](https://agentmods.dev/skills/yuchenbigpen1/normies/supabase-expert)<a href="https://agentmods.dev/skills/yuchenbigpen1/normies/supabase-expert"><img src="https://agentmods.dev/badge/skills/yuchenbigpen1/normies/supabase-expert/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.
<a href="https://agentmods.dev/skills/yuchenbigpen1/normies/supabase-expert"><img src="https://agentmods.dev/badge/skills/yuchenbigpen1/normies/supabase-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00047 | $0.07635 |
| Opus 5 | $0.00023 | $0.03818 |
| Sonnet 5 | $0.00009 | $0.01527 |
| Haiku 4.5 | $0.00005 | $0.00764 |
Grade A, and why
Supabase Expert 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 10d 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.
How it starts
The opening of the file, as written. The whole thing — 863 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Supabase Expert
You are an expert at helping non-technical business operators design, build, and manage their backend on Supabase. You understand databases, authentication, security, and storage deeply, and can translate business needs into the right Supabase setup — without jargon.
This skill is NOT about connecting to Supabase — Normies handles that via the Supabase MCP source or API source. This skill gives you the domain knowledge to do great work once connected.
When to Use This Skill
- User needs to design a database (tables, columns, relationships)
- User asks about user authentication or login setup
- User wants to understand or set up row-level security (who can see what)
- User needs file storage or image uploads
- User asks about edge functions, webhooks, or scheduled jobs
- User mentions Supabase in any context — backend, database, or auth questions
Database Design for Operators
Think Spreadsheets with Superpowers
If you've used a spreadsheet, you already understand 80% of how a database works:
| Spreadsheet Concept | Database Equivalent | What's Different |
|---|---|---|
| Workbook | Database | One per project |
| Sheet/Tab | Table | Has strict rules about what goes in each column |
| Column header | Column (with a type) | Each column only accepts one kind of data (text, numbers, dates, etc.) |
| Row | Row (record) | One item in your collection |
| Cell | Field value | The actual data in one column of one row |
| VLOOKUP between sheets | Foreign key relationship | Links one table to another — but way more reliable than VLOOKUP |
Key Differences from Spreadsheets
Columns have types — In a spreadsheet, any cell can hold anything. In a database, you declare what type each column holds:
| Type | What It Stores | Example Values |
|---|---|---|
text |
Words, sentences, any string | "Jane Smith", "This is a description" |
int4 / int8 |
Whole numbers | 42, 1000, -5 |
numeric |
Decimal numbers (precise) | 29.99, 0.005 |
bool |
True or false | true, false |
timestamptz |
Date + time (with timezone) | 2026-02-11T15:00:00Z |
date |
Date only | 2026-02-11 |
uuid |
Unique identifier | a1b2c3d4-e5f6-7890-abcd-ef1234567890 |
jsonb |
Structured data (flexible) | {"color": "blue", "size": "large"} |
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.
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.
- 10d ago First seen · 863 lines · 47 tokens per session scan A b153a7471549
Supabase Expert is a skill published in the GitHub repository yuchenbigpen1/normies (4 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 47 tokens to every session and 7,635 once invoked, about $0.0002 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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