Fp backend

Skill newmindsgroup/ai-agent-skills-library/sources/sickn33-antigravity-awesome-skills/skills/fp-backend

Functional programming patterns for Node.js/Deno backend development using fp-ts, ReaderTaskEither, and functional dependency injectionFrom its SKILL.md

Install

npx -y skills add newmindsgroup/ai-agent-skills-library --skill fp-backend

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SKILL.md

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fp-ts Backend Patterns

Functional programming patterns for building type-safe, testable backend services using fp-ts.

When to Use

You are building or refactoring a Node.js or Deno backend with fp-ts.
The task involves dependency injection, service composition, or typed backend errors with ReaderTaskEither.
You need functional backend architecture patterns rather than isolated utility snippets.

Core Workflow

Confirm the request matches this skill's trigger, scope, and risk profile.
Use the topic map to identify the relevant pattern, checklist, or example before writing detailed guidance or code.
Load references/full-guidance.md when implementation details, examples, anti-patterns, validation checks, or edge cases are needed.
Apply only the relevant guidance instead of loading or repeating the entire reference by default.
Verify the result against any validation checks, limitations, security notes, or platform constraints in the reference.

Topic Map

Core Concepts
ReaderTaskEither (RTE)
Service Layer Patterns
Defining Service Modules
Composing Services
Functional Dependency Injection
Building the Dependency Container
Running Programs with Dependencies
Database Operations
Prisma Wrappers
Transaction Handling
Middleware Patterns
Express Middleware
Hono Middleware
Request Context Pattern
Error Handling Patterns
Typed Error Hierarchy
Error Recovery

Reference Map

references/full-guidance.md preserves the complete original guidance, including examples and detailed edge cases.

Limitations

Use this skill only when the task clearly matches the scope described above.
Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

Progressive Loading

Keep this SKILL.md as the compact routing and workflow entrypoint. Load the reference file only when the user task requires the deeper implementation material.

What ships with it: 1 file

32.9 KB alongside SKILL.md

references/

full-guidance.md32.9 KB