/spine-api

SpineBackend & APIs

Designs and builds an API contract-first: the interface is defined and agreed before implementation begins. Produces endpoint specs with request and response schemas, validation rules, auth requirements, error codes, and pagination patterns, then implements the full API against that spec.

Install

This skill

Install Spine API

1. Add to marketplace

$ claude plugin marketplace add tonone-ai/tonone

2. Install this skill

$ claude plugin install spine-api@tonone-ai

The agent

Install Spine

1. Add to marketplace

$ claude plugin marketplace add tonone-ai/tonone

2. Install Spine

$ claude plugin install spine@tonone-ai

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Full installation guide

Invoke this skill

Command|$ /spine-api

When to use

When building a new REST or GraphQL API from scratch. When adding major new API surfaces to an existing service. When two teams need to agree on an interface before either starts building, so both sides can work in parallel without blocking each other.

Deep dive

AI REST API Design (Contract-First)

Most AI tools write API code without a contract. /spine-api designs the API contract first: endpoints, schemas, errors, auth, pagination, then implements against it.

Read the article

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SpinePlanning

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Produces a system design document before implementation begins: component breakdown, data flow diagrams, API contracts between services, failure modes with fallback behavior, and scaling strategy. Written to be reviewed and challenged before any code is written.

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Finds and fixes performance bottlenecks in existing backend services. Diagnoses N+1 query patterns, missing database indexes, synchronous I/O that should be async, cache layer gaps, and connection pool exhaustion. Produces a prioritized list of fixes with the expected impact of each.

When specific endpoints are slow under normal load…

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