supabase-app-security-audit SKILL.md skillA
supabase-app-security-audit from novaestellar/novahaku is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add novaestellar/novahaku/supabase-app-security-audit@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- novaestellar/novahaku
- Path
testing/frameworks/supabase-app-security-audit/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed Sep 25, 2026
- Size
- 19,187 bytes
- Repository stars
- 28
- License
- MIT
Audit Supabase BaaS apps: RLS write paths, RPC nulls.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Supabase App Security Audit Use when auditing a frontend-only app backed by Supabase (anon key in client JS, RLS + Postgres RPC as the entire security boundary). The goal is a ranked finding list + handoff fix doc another session can execute. ## When to use - "audit this web app" / "check its security" for a Pages/Vercel/static site + Supabase. - Reviewing any app where the anon key is public and all logic lives in RLS policies + SQL functions. ## Core workflow (ordered) 1. **Read ALL source first** — app JS, payment/worker files, and EVERY `.sql` migration in order (v1→latest; later migrations drop/replace earlier policies, so judging by schema v1 alone yields false findings). 2. **Grab the anon key from the LIVE config file** (e.g. `/supabase-config.js`). Don't print it in chat output; extract with regex inside probe scripts. 3. **Run 3 passes**: - Pass 1: anon-key reads on every table + every RPC (probe behavior/error messages), storage bucket listing, live response headers, deploy-artifact exposure. - Pass 2: authenticated-user (log in as a test account) WRITE paths — this is where most real bugs live: PATCH/INSERT/DELETE on every table, RPCs that mutate. …
Read the whole file at its exact version.
How to install
mdr add novaestellar/novahaku/supabase-app-security-audit@sha256:622118669a0672afThe line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_tyyhbjx47lx35zbc)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 25, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (19187 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
novaestellar/novahaku · 28 stars · license MIT · pushed 2026-09-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_tyyhbjx47lx35zbc GET https://markdownregistry.com/api/v1/resolve?ref=novaestellar/novahaku/supabase-app-security-audit GET https://markdownregistry.com/api/v1/blob/622118669a0672af1c4c07be71f2f31d8842b7b8458624c83339c9f122e2bc29
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.