replica-backend SKILL.md skillF
replica-backend from realtahailyas/reverse-engineer-app-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add realtahailyas/reverse-engineer-app-skills/replica-backend@git:20261021.9d48208Pins git:20261021.9d48208 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- F, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- realtahailyas/reverse-engineer-app-skills
- Path
skills/replica-backend/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261021.9d48208, committed Oct 21, 2026
- Size
- 3,985 bytes
- Repository stars
- 3
- License
- MIT
Builds the backend of an app clone: auth, database migrations and access rules, payments with Stripe, email, background jobs and third-party integrations through official APIs only, plus a security checklist. Use when the user says "add login", "set up auth", "wire up the database", "add payments", "connect Stripe", "add Google Calendar", "send emails", "backend for my clone", or when /replica-build is running on fake data.
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
# replica-backend Reads `replica/architecture.md`. Writes migrations and server code, and keeps `replica/backend.md` (checklist below) up to date. ## The rules - **Official, public APIs only, with the user's own keys.** Never call the original app's private endpoints, never reuse its OAuth client, never proxy through it. - **The user creates accounts and keys.** Claude never signs up for services, never types a password, card or live key. The user creates the Stripe, Supabase, Resend or Google Cloud project and puts keys in `.env.local`. Claude writes `.env.example` with every variable name and no values. - **Test mode first.** Stripe test keys and test cards until replica-deploy. ## Auth - Email sign up with verification, password reset, magic link if the original has it. OAuth (Google, Apple) with the user's own developer apps. - Sessions: http-only secure cookies. Sign out everywhere. - Roles and teams if the recon map has them: owner, admin, member, with one function that answers "can this user do this to this record". - Account deletion that actually deletes. Apple requires it for apps with sign up. ## Database …
Read the whole file at its exact version.
How to install
mdr add realtahailyas/reverse-engineer-app-skills/replica-backend@sha256:8dda218e858f88d3The line at the top of this page pins the label git:20261021.9d48208, 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_wh75ziwo5nx5rkol)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 21, 2026.
Audit of the latest version
- FAIL, critical: No instruction to send local credentials anywhere (matched: send or Google Cloud project and puts keys in `.env)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3985 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 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
realtahailyas/reverse-engineer-app-skills · 3 stars · license MIT · pushed 2026-10-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_wh75ziwo5nx5rkol GET https://markdownregistry.com/api/v1/resolve?ref=realtahailyas/reverse-engineer-app-skills/replica-backend GET https://markdownregistry.com/api/v1/blob/8dda218e858f88d389cde097dc4f8ec0ebd82b1273d72df01598f630ed8923bb
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.