The request asks what to use for backend development guidelines. Supabase 1 and Neon 9 offer Postgres backends with official skills for backend best practices, and FastAPI conventions are indexed via 8 (tiangolo's site, which hosts FastAPI and its best-practices skill 18). Backend architecture guidance is indexed under AI SDK 2, while Mastra 4 offers API design guidelines 14.
- 1
Supabasesupabase.comverified and signed
Postgres development platform with an official best-practices skill for backend work, supabase-postgres-best-practices, which must be loaded before writing or changing Postgres code 11, and a server-side skill for Edge Functions and webhook handlers 11.
official:SDK · @supabase/supabase-jsCLI · supabasepackage · Supabaserepository · supabaseskill · supabase-postgres-best-practices+103 community tools built for it
for agents: supabase-postgres-best-practices · supabase-server · custom_api_call
- 2
Neonneon.techverified and signed
Backend platform around Lakebase Postgres with a postgres-best-practices skill covering schema design, indexing, query optimization and migrations 19, and a neon-postgres skill for connections, migrations and branching 19.
official:MCP server · Neonpackage · @neon/toolsskill · neon-postgresskill · neon
for agents: postgres-best-practices · neon · neon-postgres
- 3
AI SDKai-sdk.devverified and signed
Unified TypeScript SDK for AI apps with an indexed create-a-backend skill giving backend architecture guidance for planning or migrating an API, choosing between Functions, Services and containers 12.
official:MCP server · @ai-sdk/mcpSDK · aiskill · ai-sdkskill · Skillsskill · building-components
for agents: create-a-backend · eve · building-components
- 4
Mastramastra.aiverified and signed
Open-source TypeScript framework for AI agents and apps with an api-design skill giving guidelines for designing RESTful APIs and TypeScript interfaces 14.
+13 community tools built for it
for agents: api-design · brand-guidelines · react-best-practices
- 5
Sources
- 1Supabase | The Postgres Development Platformsupabase.com · read 2026-10-29
- 2AI SDKai-sdk.dev · read 2026-10-29
- 4TypeScript AI Framework for Agents and Apps | Mastramastra.ai · read 2026-10-29
- 8Home - tiangolo's boring personal websitetiangolo.com · read 2026-10-29
- 9Neon — Postgres backends for apps and agentsneon.com · read 2026-10-29
- 11supabase-postgres-best-practices: declares "supabase-postgres-best-practices" (the record we read and signed)unfragile.ai · read 2026-10-24
- 12create-a-backend: declares "create-a-backend" (the record we read and signed)unfragile.ai · read 2026-10-24
- 14api-design: declares "api-design" (the record we read and signed)unfragile.ai · read 2026-10-24
- 18fastapi: declares "fastapi" (the record we read and signed)unfragile.ai · read 2026-10-24
- 19postgres-best-practices: declares "postgres-best-practices" (the record we read and signed)unfragile.ai · read 2026-10-24
For agents: the 10 actions behind this answer
supabase-postgres-best-practices · supabase-postgres-best-practices verified and signed
Postgres best practices maintained by Supabase, for Postgres running anywhere. Load this skill BEFORE writing or changing anything that lives in a Postgres database: creating or altering tables and columns (including choosing column types), schema design, migrations and declarative schema files, RLS
create-a-backend · create-a-backend verified and signed
Backend architecture guidance. Use when planning, building, or migrating an API or backend; choosing between Functions, Services, containers, Daemons, Workflow, Queues, and Marketplace databases; or selecting a supported backend framework or runtime.
vscode-ext-localization · vscode-ext-localization verified and signed
Guidelines for proper localization of VS Code extensions, following VS Code extension development guidelines, libraries and good practices
api-design · api-design verified and signed
Guidelines for designing RESTful APIs and TypeScript interfaces. Use when designing new endpoints, reviewing API contracts, or structuring data models.
node · @shopify/storefront-api-client verified and signed
checking-changes · checking-changes verified and signed
Validates all code changes before committing by running format, lint, type, and unit test checks. Use after making backend (Python) or frontend (TypeScript) changes, before committing or finishing a work session.
code-security · code-security verified and signed
Security guidelines for writing secure code. Use when writing code, reviewing code for vulnerabilities, or asking about secure coding practices like 'check for SQL injection' or 'review security'. IMPORTANT: Always consult this skill when writing or reviewing any code that handles user input, authen
fastapi · fastapi verified and signed
FastAPI best practices and conventions. Use when working with FastAPI APIs, Pydantic models, dependencies, streaming responses including Server-Sent Events (SSE), and serving frontend apps. Keeps FastAPI code clean and up to date with the latest features and patterns.
shopify-onboarding-dev · shopify-onboarding-dev verified and signed
Get started building on Shopify. Use when a developer asks to build an app, build a theme, create a dev store, set up a partner account, scaffold a project, or get started developing for Shopify — including building an app in a specific backend language or framework (for example Laravel, Symfony, Dj
postgres-best-practices · postgres-best-practices verified and signed
Best practices and guidelines for working with Postgres. Covers schema design, indexing strategies, query optimization, migrations, and common pitfalls. Use when writing SQL, designing database schemas, optimizing queries, or setting up a Postgres database.
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