react-build-resolver

react-build-resolver is an agent for Claude Code, Kiro from masrisystems/dot-agents. It costs 73 tokens per session (1,391 once invoked), scanned A, original, no licence file.

A React build troubleshooting add-on for finding and fixing failures in tools such as Vite, webpack, Next.js, and CRA. It covers JSX and TypeScript errors, hydration mismatches, server/client boundaries, missing types, and bundler settings.

In plain words
What is it for?
Use it to diagnose compiler errors, hydration problems, component-boundary failures, missing types, and configuration issues in React projects.
Why use it?
It helps locate the cause of a failed React build or development run without making broad, unnecessary changes.

Agent for Claude CodeKiro

Written for Claude Code and Kiro: shipped in a Claude Code plugin, but also installed under .kiro/.

Part of the ecc plugin — 70 skills, 71 commands, 55 agents, 1 MCP server 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/masrisystems/dot-agents/react-build-resolver
Clone the repo
git clone --depth 1 https://github.com/masrisystems/dot-agents

Made for: Claude Code, Kiro.

Or install ecc, the plugin that ships this one along with the rest of its 70 skills, 71 commands, 55 agents, 1 MCP server.

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 react-build-resolver

README.md
[![agentmods](https://agentmods.dev/badge/agents/masrisystems/dot-agents/react-build-resolver.svg)](https://agentmods.dev/agents/masrisystems/dot-agents/react-build-resolver)
Your own site
<a href="https://agentmods.dev/agents/masrisystems/dot-agents/react-build-resolver"><img src="https://agentmods.dev/badge/agents/masrisystems/dot-agents/react-build-resolver.svg" alt="Measured on agentmods" height="20"></a>
Per session 73 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,391 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00073 $0.01391
Opus 5 $0.00036 $0.00696
Sonnet 5 $0.00015 $0.00278
Haiku 4.5 $0.00007 $0.00139

Measured 2d ago against content hash fc61ec3f134c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

react-build-resolver 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 2d 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.

catalogs/ecc/.kiro/agents/react-build-resolver.md · 144 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2d ago First seen · 144 lines · 73 tokens per session scan A fc61ec3f134c

Subscribe to this mod's changes

react-build-resolver is an agent published in the GitHub repository masrisystems/dot-agents (0 stars, last pushed 4d ago), with no licence file. It adds 73 tokens to every session and 1,391 once invoked, about $0.0004 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.

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