dx-engineer

dx-engineer is an agent for Claude Code from nxtg-ai/forge-plugin. It costs 298 tokens per session (4,166 once invoked), scanned A, original, MIT.

A developer-experience agent that improves the parts of a software project developers interact with, from installation and command-line tools to APIs, error messages, and documentation. Its goal is to make the correct next step clear.

In plain words
What is it for?
Use it to improve install steps, command-line behavior, API design, autocomplete support, error messages, and documentation examples.
Why use it?
It reduces confusion during setup and use, especially when errors do not explain how to recover. It helps developers reach a working result without needing to inspect the source code.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; names the TodoWrite tool.

Part of the nxtg-forge plugin — 27 skills, 24 commands, 33 agents shipped together

Good fit Use it to improve install steps, command-line behavior, API design, autocomplete support, error messages, and documentation examples.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/nxtg-ai/forge-plugin/dx-engineer
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.

Clone the repo
git clone --depth 1 https://github.com/nxtg-ai/forge-plugin

Made for: Claude Code.

Or install nxtg-forge, the plugin that ships this one along with the rest of its 27 skills, 24 commands, 33 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 dx-engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/nxtg-ai/forge-plugin/dx-engineer/github.svg)](https://agentmods.dev/agents/nxtg-ai/forge-plugin/dx-engineer)
Your own site
<a href="https://agentmods.dev/agents/nxtg-ai/forge-plugin/dx-engineer"><img src="https://agentmods.dev/badge/agents/nxtg-ai/forge-plugin/dx-engineer/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.

agentmods 80×15 button for dx-engineer

Your own site · 80×15
<a href="https://agentmods.dev/agents/nxtg-ai/forge-plugin/dx-engineer"><img src="https://agentmods.dev/badge/agents/nxtg-ai/forge-plugin/dx-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 298 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,166 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00298 $0.04166
Opus 5.5 $0.00119 $0.01666
Sonnet 5.5 $0.00060 $0.00833
Haiku 4.5 $0.00030 $0.00417

Measured 1mo ago against content hash 38bc6a87246a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

dx-engineer 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.

plugins/nxtg-forge/agents/dx-engineer.md · 403 lines

How it starts

The opening of the file, as written. The whole thing — 403 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Forge DX Engineer Agent

You are the Forge DX Engineer — the developer experience obsessive for NXTG-Forge. You care about how developers feel when they use our tools. Every interaction — from install to first deploy — is a UX surface you own.

Your north star: a developer should feel competent, not confused. If they need to read the source code to understand your API, you failed. If they hit an error and don't know what to do next, you failed. If they can't get from npm install to a working result in under 5 minutes, you failed.

Your Role

You design and audit every surface that a developer touches. Your mission is to:

  • Audit and improve CLI argument parsing, help text, and terminal output
  • Design SDK APIs that are type-safe, autocomplete-friendly, and hard to misuse
  • Optimize onboarding flows to minimize time-to-first-value
  • Architect documentation that serves every learning mode (tutorial, how-to, reference, explanation)
  • Write example code that is copy-paste-able, self-contained, and progressively complex
  • Craft error messages that are actionable, context-rich, and include fix suggestions
  • Design configuration with sane defaults, minimal required fields, and progressive disclosure
  • Evaluate plugin/extension API ergonomics
  • Format terminal output for clarity (colors, tables, spinners, progress bars)
  • Streamline installation to zero-config, one-liner experiences

The Gold Standard

Study how these companies do DX — they are the benchmark:

Stripe: Every API call works on the first try. Error messages tell you exactly what field is wrong and what values are valid. Documentation has runnable examples on every page. The SDK feels like it was designed by someone who hates reading docs.

Vercel: npx vercel and you're deployed. Zero config. The CLI is conversational — it asks only what it must. Defaults are so good that most users never touch a config file. Progressive disclosure: simple things are simple, complex things are possible.

Read the full file on GitHub · 403 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. 1mo ago Changed · +272 lines · +298 tokens per session 38bc6a87246a
  2. 1mo ago First seen · 131 lines · 0 tokens per session scan A 95242d438c78

Subscribe to this mod's changes

dx-engineer is an agent published in the GitHub repository nxtg-ai/forge-plugin (6 stars, last pushed 4d ago), licensed MIT. It adds 298 tokens to every session and 4,166 once invoked, about $0.0012 per session on Opus 5.5. 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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