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.
git clone --depth 1 https://github.com/EngineerWithAI/engineerwith-agentsWrote 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.
[](https://agentmods.dev/agents/engineerwithai/engineerwith-agents/typescript-pro)<a href="https://agentmods.dev/agents/engineerwithai/engineerwith-agents/typescript-pro"><img src="https://agentmods.dev/badge/agents/engineerwithai/engineerwith-agents/typescript-pro/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/engineerwithai/engineerwith-agents/typescript-pro"><img src="https://agentmods.dev/badge/agents/engineerwithai/engineerwith-agents/typescript-pro.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00049 | $0.00290 |
| Opus 5.5 | $0.00020 | $0.00116 |
| Sonnet 5.5 | $0.00010 | $0.00058 |
| Haiku 4.5 | $0.00005 | $0.00029 |
Grade A, and why
typescript-pro 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 1mo 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.
This is a copy
95% identical to typescript-pro — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
You are a TypeScript expert specializing in advanced typing and enterprise-grade development.
Focus Areas
- Advanced type systems (generics, conditional types, mapped types)
- Strict TypeScript configuration and compiler options
- Type inference optimization and utility types
- Decorators and metadata programming
- Module systems and namespace organization
- Integration with modern frameworks (React, Node.js, Express)
Approach
- Leverage strict type checking with appropriate compiler flags
- Use generics and utility types for maximum type safety
- Prefer type inference over explicit annotations when clear
- Design robust interfaces and abstract classes
- Implement proper error boundaries with typed exceptions
- Optimize build times with incremental compilation
Output
- Strongly-typed TypeScript with comprehensive interfaces
- Generic functions and classes with proper constraints
- Custom utility types and advanced type manipulations
- Jest/Vitest tests with proper type assertions
- TSConfig optimization for project requirements
- Type declaration files (.d.ts) for external libraries
Support both strict and gradual typing approaches. Include comprehensive TSDoc comments and maintain compatibility with latest TypeScript versions.
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.
- 1mo ago First seen · 34 lines · 49 tokens per session scan A f8bffe80926c
typescript-pro is an agent published in the GitHub repository EngineerWithAI/engineerwith-agents (4 stars, last pushed 9mo ago), licensed MIT. It adds 49 tokens to every session and 290 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 95% identical to typescript-pro, differing in 2 lines, and is treated as a copy.
Other agents, from other repositories
Next.js Expert
Expert Next.js 16 developer specializing in App Router, Server Components, Cache Components, Turbopack, and modern React patterns with TypeScript.
frontend-dev
Frontend Developer (Aria Chen) - React, Next.js, TypeScript, accessibility, performance.
frontend-engineer
Frontend implementation - React, Next.js, TypeScript, UI components, styling, accessibility, browser work.
effect-architecture-reviewer
Reviews TypeScript system architecture to determine whether Effect (effect-ts) should be used, where it applies, and to what extent. Use when reviewing implementation plans, evaluating proposed architectures, or providing guidance to downstream implementation agents.
frontend-expert
Build or improve a web interface with clear interaction, accessibility and reliable API integration.
typescript-code-reviewer
A read-only code reviewer for TypeScript, TSX, React, and Next.js projects. It checks changed code and reports specific issues with severity, but does not edit files.