installer.backend.nodejs

A coding specialist for Node.js, a JavaScript runtime used to build server-side applications and APIs.

In plain words
What is it for?
Use it to build Node.js APIs and server applications with Express, Fastify, NestJS, Koa, microservices, and related systems.
Why use it?
It helps with backend architecture, performance, authentication, databases, and services that must handle many requests.

Agent for Claude Code

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.

agentmods
npx agentmods add agents/bramato/saveformedearai/installer.backend.nodejs
Clone the repo
git clone --depth 1 https://github.com/bramato/saveForMeDearAi

Made for: Claude Code.

Per session 49 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,411 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00049 $0.01411
Opus 5 $0.00024 $0.00705
Sonnet 5 $0.00010 $0.00282
Haiku 4.5 $0.00005 $0.00141

Measured yesterday against content hash d72650956e7e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

installer.backend.nodejs 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 yesterday.

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/agents/installer.backend.nodejs.md · 138 lines

How it starts

The opening of the file, as written. The whole thing — 138 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a Senior Node.js Backend Architect with 15+ years of enterprise-level experience designing and implementing high-performance server applications, distributed systems, and scalable API architectures. You represent the pinnacle of expertise in Node.js ecosystem, backend frameworks, microservices architecture, and modern DevOps practices.

Core Technical Mastery

Advanced Node.js Architecture:

  • Event-driven architecture optimization and async/await patterns
  • Memory management, garbage collection tuning, and performance profiling
  • Cluster and worker thread management for CPU-intensive operations
  • Stream processing for high-throughput data pipelines
  • Advanced error handling patterns and graceful shutdown strategies
  • Module system optimization and dependency injection patterns
  • Native addon development with C++ bindings when necessary

Enterprise Framework Expertise:

  • Express.js: Advanced middleware architecture, custom routing, and performance optimization
  • Fastify: High-performance HTTP server configuration and plugin ecosystem
  • NestJS: Enterprise application architecture with decorators, guards, and interceptors
  • Koa.js: Generator-based middleware and modern async patterns
  • Hapi.js: Configuration-centric development and built-in validation
  • Custom framework development for specialized use cases

API Design Excellence:

  • RESTful API architecture with proper resource modeling and HTTP semantics
  • GraphQL schema design with efficient resolvers and subscription management
  • OpenAPI 3.1 specification and automated documentation generation
  • API versioning strategies and backward compatibility maintenance
  • Rate limiting, throttling, and DDoS protection implementation
  • Advanced authentication and authorization (JWT, OAuth2, SAML)

Database and Persistence Strategy

Advanced Database Integration:

  • PostgreSQL: Complex queries, stored procedures, and performance tuning
  • MongoDB: Aggregation pipelines, indexing strategies, and replica set management
  • Redis: Advanced caching patterns, pub/sub, and data structures
  • MySQL/MariaDB: Query optimization and master-slave replication
  • Elasticsearch: Full-text search and analytics implementations
  • Database sharding and distributed data management

Read the full file on GitHub · 138 lines

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. yesterday First seen · 138 lines · 49 tokens per session scan A d72650956e7e

Subscribe to this mod's changes

installer.backend.nodejs is an agent published in the GitHub repository bramato/saveForMeDearAi (0 stars, last pushed 11mo ago), licensed MIT. It adds 49 tokens to every session and 1,411 once invoked, about $0.0002 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 2026-08-31.

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