add-backend

add-backend is a skill for Claude Code from ahpxex/open-dashboard. It costs 169 tokens per session (3,698 once invoked), scanned A, original, MIT.

A set of six backend templates for connecting a web app to data storage and user sign-in. The choices include TypeScript, Python, and Supabase setups, with the frontend accessing them through fixed connection points.

In plain words
What is it for?
Use it to add data entities, connect screens to stored data, add authentication, or switch between supported backend setups.
Why use it?
It keeps database and sign-in choices separate from the user interface, so changing the backend requires fewer code changes. It also supports in-memory data when no database is configured.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Part of the open-dashboard plugin — 4 skills shipped together

Good fit Use it to add data entities, connect screens to stored data, add authentication, or switch between supported backend setups.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ahpxex/open-dashboard/add-backend
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 ahpxex/open-dashboard --skill add-backend
Clone the repo
git clone --depth 1 https://github.com/ahpxex/open-dashboard

Made for: Claude Code.

Or install open-dashboard, the plugin that ships this one along with the rest of its 4 skills.

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 add-backend

README.md
[![agentmods](https://agentmods.dev/badge/skills/ahpxex/open-dashboard/add-backend.svg)](https://agentmods.dev/skills/ahpxex/open-dashboard/add-backend)
Your own site
<a href="https://agentmods.dev/skills/ahpxex/open-dashboard/add-backend"><img src="https://agentmods.dev/badge/skills/ahpxex/open-dashboard/add-backend.svg" alt="Measured on agentmods" height="20"></a>
Per session 169 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,698 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original 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 $0.00169 $0.03698
Opus 5 $0.00084 $0.01849
Sonnet 5 $0.00034 $0.00740
Haiku 4.5 $0.00017 $0.00370

Measured 8d ago against content hash 141e9d7e54bf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

add-backend 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.

The scan reads SKILL.md. This mod also ships 37 executable files (templates/fastapi-sqlalchemy-jwt/app/__init__.py, templates/fastapi-sqlalchemy-jwt/app/auth.py, templates/fastapi-sqlalchemy-jwt/app/config.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.claude/skills/add-backend/SKILL.md · 269 lines

How it starts

The opening of the file, as written. The whole thing — 269 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Add a backend (resources, data sources & presets)

The app is backend-agnostic by design: it reaches data and auth only through two seams, so adding a resource, swapping one resource's data source, or re-pointing the whole app at a different backend are all localized operations.

Routing rule: use add-backend whenever a screen needs its own data (a new entity/table, or a different backend); use add-component when composing UI on top of data that already exists.

Concern Seam Default preset Swap point
Business data (resources) Repository<T, TInput> (@/infra/data/repository) Postgres via drizzleRepository; in-memory when no DB each resource's server.ts binding
Auth (server) AuthProvider (@/lib/auth-provider) better-auth (betterAuthProvider) the authProvider binding
Auth (browser) @/lib/auth-client better-auth React client reimplement that one file

Zero-config (bun dev, no DATABASE_URL) already runs on in-memory presets, so you can build UI before wiring a real backend. Full guides: docs/data-adapters.md, docs/backends.md.

Backend presets — ready-to-run templates

Six runnable backend templates ship in this skill's templates/<preset>/ (generated from the repo's backends/ source and contract-tested — templates/<preset>/README.md

  • a shared CONTRACT.md). Pick one as the project's backend; each connects to the dashboard frontend through the two seams above — no page, query, table, or form changes — and each is independently verified.
Preset Stack Frontend wiring Reference
tanstack-drizzle-betterauth TanStack Start server fns + Drizzle + better-auth (in-process — the default) none — it is the scaffold references/tanstack-drizzle-betterauth.md
hono-drizzle-betterauth Hono + Drizzle + better-auth (standalone TS service) restRepository + remoteBetterAuthProvider references/hono-drizzle-betterauth.md
hono-prisma-betterauth Hono + Prisma + better-auth (standalone TS service) restRepository + remoteBetterAuthProvider (same as Drizzle) references/hono-prisma-betterauth.md
hono-drizzle-authjs Hono + Drizzle + Auth.js / NextAuth v5 (standalone TS service) restRepository + remoteAuthjsProvider + authjs client references/hono-drizzle-authjs.md
fastapi-sqlalchemy-jwt FastAPI + SQLAlchemy + JWT (standalone Python service) restRepository + externalJwtAuthProvider references/fastapi-sqlalchemy-jwt.md
supabase Supabase Postgres + Auth (BaaS — SQL + config) supabaseRepository + Supabase AuthProvider (copy-ready) references/supabase.md

Read the full file on GitHub · 269 lines

Files

What ships with it

60 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 · 269 lines · 169 tokens per session scan A 141e9d7e54bf

Subscribe to this mod's changes

add-backend is a skill published in the GitHub repository ahpxex/open-dashboard (138 stars, last pushed 2mo ago), licensed MIT. It adds 169 tokens to every session and 3,698 once invoked, about $0.0008 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 2026-08-30.

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