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Vinkius

ICU MessageFormat Validator Connector for AI agents.

3 live capabilities

Stop broken translation strings with automated i18n syntax validation.

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AI Agent

Why people use ICU MessageFormat Validator

Fix broken i18n templates with ICU MessageFormat Validator

With this MCP, your agent does the heavy lifting. It scans your templates instantly and points out exactly where the syntax fails, so you can fix it before a single user sees a broken UI.

  • Claude
  • ChatGPT
  • Gemini
  • Cursor
  • Visual Studio Code
  • Windsurf

What Vinkius changes

You stop shipping broken translation templates.

Use it from Claude, ChatGPT, Cursor or another AI client you already have.

One account · 6,100+ Connectors

  1. Real-world use case 01

    Broken brace detection

    A developer pastes a complex plural string into the agent, and it immediately flags a missing closing brace.

  2. Real-world use case 02

    Variable inventorying

    An engineer needs to know which keys to add to their translation JSON, so they ask the agent to list all variables in a specific template.

  3. Real-world use case 03

    Plural logic audit

    A localization specialist wants to ensure a new select block follows all rules, and the agent confirms the categories are correct.

Complete set · 3capabilities

The complete ICU MessageFormat Validator capability set.

These are the exact actions your AI can choose when you ask it to work with ICU MessageFormat Validator.

Capability set01 / 01

01—03

3 capabilities in this set.

Part of 3 available through ICU MessageFormat Validator.

  1. 01 Capability

    Validate category logic

    Checks that your plural and select blocks use valid categories like one, few, or many. It ensures you never forget the mandatory 'other' category.

  2. 02 Capability

    Extract template variables

    Scans your message strings to find every unique variable name used. This helps you keep your interpolation parameters in sync with your code.

  3. 03 Capability

    Validate structural braces

    Analyzes brace depth and quote escaping to catch unmatched characters. It prevents syntax errors from corrupting your translation engine.

Set up in minutes

One URL. Then ask ICU MessageFormat Validator to work.

Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use ICU MessageFormat Validator from the conversation.

Choose your client

Live preview
Advanced clients IDE · CLI

Claude · Web + desktop

Official guide ↗

Connector URL · ready to paste

Streamable HTTP
https://edge.vinkius.com/vk_preview_IaQlGvSL4zMDdiFv0D4FuL8L3jDEnXfQZ1I61OIc/mcp
  1. Step 01

    Open Connectors

    In Claude Web or Claude Desktop, open Settings and choose Connectors.

  2. Step 02

    Add the URL

    Choose Add custom connector, name it ICU MessageFormat Validator, and paste the URL above.

  3. Step 03

    Turn it on in chat

    Select +, open Connectors, and enable ICU MessageFormat Validator for the conversation.

Where the request belongs

Work ICU MessageFormat Validator can move forward.

Built around the request

This is for localization engineers and frontend developers who manage complex, multi-language applications where a single syntax error can crash the UI.

01

Localization Engineer

Checking that new translation files follow strict ICU syntax rules before deployment.

02

Frontend Developer

Auditing template variables to ensure the UI components match the backend data payloads.

03

i18n Specialist

Verifying that complex pluralization and gender-based select logic are structurally sound.

Build the capability set

Add more capabilities.

Each Connector adds new actions and data without changing how you work.

Browse Connectors
ICU MessageFormat Validator logo
01 3 capabilities

ICU MessageFormat Validator

A deterministic validator for ICU MessageFormat strings to prevent i18n breakage from unbalanced braces or incorrect syntax.

View Connector
i18n Hardcoded String Detector logo
02 3 capabilities

i18n Hardcoded String Detector

An AST-powered auditing capability that identifies un-internationalized text literals in source code by cross-referencing them against translation dictionary keys.

View Connector
Markdown Structure Compliance Validator logo
03 3 capabilities

Markdown Structure Compliance Validator

Enforces strict markdown formatting rules for LLM outputs.

View Connector
Deterministic Global Postal Formatter logo
04 1 capability

Deterministic Global Postal Formatter

Transform your AI into a CRM data powerhouse. Automatically validate, clean, and strictly format international postal codes (BR, US, UK, CA) via regex execution.

View Connector
Personalization Token Validator logo
05 1 capability

Personalization Token Validator

Validate syntax, fallback availability, and linguistic safety of dynamic merge fields in templates.

View Connector
JSON Schema Strict Validator logo
06 3 capabilities

JSON Schema Strict Validator

Perform deterministic JSON validation against Draft-07 and 2020-12 schemas with strict property enforcement.

View Connector

Bring your own AI

Change the model, client or framework. Keep ICU MessageFormat Validator connected.

  • Claude
  • ChatGPT
  • Gemini
  • Cursor
  • VS Code
  • Windsurf
  • ZCode
  • Cline
  • Zed
  • Continue
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  • Roo Code
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  • Chorus
  • 5ire
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  • LangChain
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  • CrewAI
  • Vercel AI SDK

Before you connect

Questions about ICU MessageFormat Validator.

The practical details behind the request, access and result.

How can ICU MessageFormat Validator prevent translation errors?

It catches unmatched braces and bad syntax before they reach production, preventing broken UI elements.

Can I use ICU MessageFormat Validator to find all keys in a string?

Yes, you can ask your agent to list every variable name found within the template.

Does ICU MessageFormat Validator check for pluralization rules?

It verifies that your categories like 'one' or 'few' are valid and that the mandatory 'other' category is present.

Will ICU MessageFormat Validator work with my existing AI client?

Yes, any MCP-compatible client like Claude, Cursor, or Windsurf can use it via Vinkius.

Can this capability find unescaped quotes in my strings?

Yes, it specifically checks for single quotes that might break your parsing engine during runtime.

How does the validator handle single quotes?

The validate_structural_braces capability implements a state machine to track escaping. It recognizes that two consecutive single quotes (double-single-quote) represent a literal single quote, preventing the parser from incorrectly terminating an escaped sequence.

What happens if I use an invalid category in a plural block?

If you include an unsupported keyword like 'none' or 'all', the validate_category_logic capability will flag a syntax error, identifying the exact character offset where the invalid category was detected.

Can I use this to find all variables in my translation files?

Yes, by using the extract_template_variables capability, you can provide any ICU string and receive a complete list of all unique variable names found within the template, such as 'userName' or 'itemCount'.

One connection away

Give your agent a direct line to ICU MessageFormat Validator.

Connect ICU MessageFormat Validator once. Keep it beside 6,100+ managed Connectors when the next task needs more.

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