nextjs-supabase-auth SKILL.md skillA
nextjs-supabase-auth from asymmetric-al/core is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add asymmetric-al/core/nextjs-supabase-auth@git:20260409.e0dffc0Pins git:20260409.e0dffc0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- asymmetric-al/core
- Path
.agents/skills/nextjs-supabase-auth/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260409.e0dffc0, committed Apr 9, 2026
- First version recorded
- Feb 18, 2026
- Size
- 2,619 bytes
- Repository stars
- 370
- License
- AGPL-3.0
Integrate Supabase Auth with Next.js App Router using middleware, callback handling, protected routes, and server/client client boundaries.
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
# Next.js + Supabase Auth Use this skill for authentication work in Next.js App Router with Supabase Auth. ## When to Apply Use this skill when: - Implementing login/signup/logout and session flows - Protecting routes with middleware - Handling auth callback exchanges - Wiring auth checks in Server Components, Server Actions, and route handlers - Debugging cookie/session desync between server and client Do not use this skill when: - The task is primarily query/index/schema optimization (use `supabase-postgres-best-practices`) - The task spans broader Supabase surface area beyond Next.js auth wiring (use `docs/ai/skills/supabase/SKILL.md`) - The task is UI-only and does not change auth behavior ## Core Rules 1. Use `@supabase/ssr` patterns for App Router integration. 2. Use `@/lib/supabase/server` for server-side code and `@/lib/supabase/client` for client-side code. 3. Use middleware to refresh and enforce session state on protected routes. 4. Do not manually store or forward auth tokens in client code. 5. Use Server Actions (or secure route handlers) for privileged auth operations. 6. Maintain RLS assumptions; do not bypass policy boundaries. ## Workflow …
Read the whole file at its exact version.
How to install
mdr add asymmetric-al/core/nextjs-supabase-auth@sha256:c9e88988741f5184The line at the top of this page pins the label git:20260409.e0dffc0, 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_ban5em75mw2q3uho)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Feb 18, 2026 and Apr 9, 2026, about one every 25 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260409.e0dffc0 latest | 2026-04-09 | e0dffc0 | 2,619 B | A | view · diff |
| git:20260311.27f086e | 2026-03-11 | 27f086e | 2,504 B | A | view · diff |
| git:20260218.048cbae | 2026-02-18 | 048cbae | 1,390 B | A | view |
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 (2619 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
asymmetric-al/core · 370 stars · license AGPL-3.0 · pushed 2026-11-06 · branch develop
API
GET https://markdownregistry.com/api/v1/artifacts/art_ban5em75mw2q3uho GET https://markdownregistry.com/api/v1/resolve?ref=asymmetric-al/core/nextjs-supabase-auth GET https://markdownregistry.com/api/v1/blob/c9e88988741f518433ea23520b711f8fd1ffc293e10e05c519f297b0558df78d
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.