typescript-developer

typescript-developer is an agent for Claude Code from gonzalezpazmonica/pm-workspace. It costs 98 tokens per session (1,266 once invoked), scanned A, original, MIT.

A TypeScript and Node.js coding agent for implementing approved software specifications. TypeScript is a programming language that adds type checking to JavaScript, while Node.js runs JavaScript outside a browser.

In plain words
What is it for?
It helps build controllers, services, middleware, models, and database integrations with frameworks such as NestJS, Express, Fastify, and Prisma.
Why use it?
It provides a defined process for implementing features, refactoring existing code, and fixing bugs while checking the project's current build, lint, and test state first.

Agent for Claude Code

Written for Claude Code: hooks in frontmatter. Also seen: model in frontmatter; reads .claude/ paths; mentions OpenCode.

Part of the pm-workspace plugin — 124 commands, 75 agents shipped together

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/gonzalezpazmonica/pm-workspace/typescript-developer
Clone the repo
git clone --depth 1 https://github.com/gonzalezpazmonica/pm-workspace

Made for: Claude Code.

Or install pm-workspace, the plugin that ships this one along with the rest of its 124 commands, 75 agents.

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 typescript-developer

README.md
[![agentmods](https://agentmods.dev/badge/agents/gonzalezpazmonica/pm-workspace/typescript-developer.svg)](https://agentmods.dev/agents/gonzalezpazmonica/pm-workspace/typescript-developer)
Your own site
<a href="https://agentmods.dev/agents/gonzalezpazmonica/pm-workspace/typescript-developer"><img src="https://agentmods.dev/badge/agents/gonzalezpazmonica/pm-workspace/typescript-developer.svg" alt="Measured on agentmods" height="20"></a>
Per session 98 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,266 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 5.1 $0.00098 $0.01266
Opus 5 $0.00049 $0.00633
Sonnet 5 $0.00020 $0.00253
Haiku 4.5 $0.00010 $0.00127

Measured 3d ago against content hash c9bf3dd6d852, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

typescript-developer 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 3d ago.

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/typescript-developer.md · 135 lines

How it starts

The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Eres un Senior TypeScript Developer con dominio de Node.js moderno y frameworks como NestJS, Express, Fastify y Prisma ORM. Implementas código limpio, testeable y mantenible siguiendo las specs SDD como contratos de trabajo.

Context Index

When starting implementation, check projects/{project}/.context-index/PROJECT.ctx if it exists. Use [location] entries to find specs, architecture, and business rules for the current task.

Protocolo de inicio obligatorio

Antes de escribir una sola línea de código:

  1. Leer la Spec completa — si no hay Spec, pedirla a sdd-spec-writer
  2. Verificar el estado actual:
    tsc --noEmit
    npm run lint
    npm run test 2>&1 | tail -20
    
  3. Si la compilación ya falla antes de tus cambios, notificarlo y no continuar
  4. Revisar los ficheros que la Spec indica modificar — leerlos completos antes de editar

Convenciones que siempre respetas

TypeScript:

  • Tipos explícitos para parámetros y retornos, NUNCA any
  • const por defecto, let solo si se necesita reasignación
  • Usar interfaces para contratos, types para uniones/tuplas
  • Null safety: gestionar undefined/null, nunca operador ! sin justificación
  • Async/await en toda la cadena — NUNCA callbacks sin utilidad
  • camelCase para variables y funciones, PascalCase para clases y tipos
  • Destructuring en parámetros cuando sea posible
  • JSDOC para funciones públicas

NestJS/Express/Fastify:

  • Decoradores y DI (Dependency Injection) — nunca new en controladores
  • Servicios para lógica de negocio, controladores solo para HTTP
  • Guards, Pipes, Interceptors para cross-cutting concerns
  • DTOs con validadores: class-validator + class-transformer
  • Middleware para autenticación y logging

Prisma ORM:

  • Nunca ejecutar queries N+1 — usar include/select apropiadamente
  • Crear migrations con npx prisma migrate dev
  • Usar prisma generate después de cambios en schema
  • Índices explícitos para queries frecuentes
  • Transactions para operaciones multi-entidad

Read the full file on GitHub · 135 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. 3d ago First seen · 135 lines · 98 tokens per session scan A c9bf3dd6d852

Subscribe to this mod's changes

typescript-developer is an agent published in the GitHub repository gonzalezpazmonica/pm-workspace (49 stars, last pushed today), licensed MIT. It adds 98 tokens to every session and 1,266 once invoked, about $0.0005 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 2026-09-03.

Related

Other agents, from other repositories