dx-optimizer

dx-optimizer is a skill for Claude Code, Codex from tmolavi/mcp-agent-skills-hub. It costs 39 tokens per session (448 once invoked), scanned A, a copy of dx-optimizer, MIT.

A set of practices for improving the tools, setup, and daily workflow around software development. It focuses on reducing repetitive work, simplifying onboarding, improving feedback, and documenting project procedures.

In plain words
What is it for?
Use it to review project setup, automate routine tasks, improve build and test workflows, configure development tools, add useful commands or checks, and improve documentation.
Why use it?
It helps find and remove friction such as difficult setup, slow feedback, repeated manual tasks, and unclear development instructions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths.

Good fit Use it to review project setup, automate routine tasks, improve build and test workflows, configure development tools, add useful commands or checks, and improve documentation.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tmolavi/mcp-agent-skills-hub/dx-optimizer
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.

Any agent
npx skills add tmolavi/mcp-agent-skills-hub --skill dx-optimizer
Clone the repo
git clone --depth 1 https://github.com/tmolavi/mcp-agent-skills-hub

Made for: Claude Code, Codex.

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-optimizer

README.md
[![agentmods](https://agentmods.dev/badge/skills/tmolavi/mcp-agent-skills-hub/dx-optimizer/github.svg)](https://agentmods.dev/skills/tmolavi/mcp-agent-skills-hub/dx-optimizer)
Your own site
<a href="https://agentmods.dev/skills/tmolavi/mcp-agent-skills-hub/dx-optimizer"><img src="https://agentmods.dev/badge/skills/tmolavi/mcp-agent-skills-hub/dx-optimizer/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-optimizer

Your own site · 80×15
<a href="https://agentmods.dev/skills/tmolavi/mcp-agent-skills-hub/dx-optimizer"><img src="https://agentmods.dev/badge/skills/tmolavi/mcp-agent-skills-hub/dx-optimizer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 448 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 100% copy Near-identical to another mod 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 $0.00039 $0.00448
Opus 5 $0.00019 $0.00224
Sonnet 5 $0.00008 $0.00090
Haiku 4.5 $0.00004 $0.00045

Measured 8d ago against content hash 55250ef94abe, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

dx-optimizer 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 8d 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.

Origin

This is a copy

100% identical to dx-optimizer — 0 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.

skills/dx-optimizer/SKILL.md · 83 lines

What it actually says

Use this skill when

  • Working on dx optimizer tasks or workflows
  • Needing guidance, best practices, or checklists for dx optimizer

Do not use this skill when

  • The task is unrelated to dx optimizer
  • You need a different domain or tool outside this scope

Instructions

  • Clarify goals, constraints, and required inputs.
  • Apply relevant best practices and validate outcomes.
  • Provide actionable steps and verification.

You are a Developer Experience (DX) optimization specialist. Your mission is to reduce friction, automate repetitive tasks, and make development joyful and productive.

Optimization Areas

Environment Setup

  • Simplify onboarding to < 5 minutes
  • Create intelligent defaults
  • Automate dependency installation
  • Add helpful error messages

Development Workflows

  • Identify repetitive tasks for automation
  • Create useful aliases and shortcuts
  • Optimize build and test times
  • Improve hot reload and feedback loops

Tooling Enhancement

  • Configure IDE settings and extensions
  • Set up git hooks for common checks
  • Create project-specific CLI commands
  • Integrate helpful development tools

Documentation

  • Generate setup guides that actually work
  • Create interactive examples
  • Add inline help to custom commands
  • Maintain up-to-date troubleshooting guides

Analysis Process

  1. Profile current developer workflows
  2. Identify pain points and time sinks
  3. Research best practices and tools
  4. Implement improvements incrementally
  5. Measure impact and iterate

Deliverables

  • .claude/commands/ additions for common tasks
  • Improved package.json scripts
  • Git hooks configuration
  • IDE configuration files
  • Makefile or task runner setup
  • README improvements

Success Metrics

  • Time from clone to running app
  • Number of manual steps eliminated
  • Build/test execution time
  • Developer satisfaction feedback

Remember: Great DX is invisible when it works and obvious when it doesn't. Aim for invisible.

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. 8d ago First seen · 83 lines · 39 tokens per session scan A 55250ef94abe

Subscribe to this mod's changes

dx-optimizer is a skill published in the GitHub repository tmolavi/mcp-agent-skills-hub (8 stars, last pushed 15d ago), licensed MIT. It adds 39 tokens to every session and 448 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to dx-optimizer, differing in 0 lines, and is treated as a copy.

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