A remote server for creating deterministic reactive state models, such as calculators or forms. It is available through the Model Context Protocol, a standard way for AI tools to use external services.

Building calculators and forms with reactive state models through the Valem service.

The description does not specify enough detail to explain a particular workflow or problem it removes.

valem — MCP server for Claude Code and Codex by vlad-public-code: A remote server for creating deterministic reactive state models…

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 mcp/vlad-public-code/org.json-kula.valem/packaging-valem

Clone the repo

git clone --depth 1 https://github.com/vlad-public-code/org.json-kula.valem

Made for: Claude Code, Codex, Cursor.

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.

README.md

[![agentmods](https://agentmods.dev/badge/mcp/vlad-public-code/org.json-kula.valem/packaging-valem.svg)](https://agentmods.dev/mcp/vlad-public-code/org.json-kula.valem/packaging-valem)

Your own site

<a href="https://agentmods.dev/mcp/vlad-public-code/org.json-kula.valem/packaging-valem"><img src="https://agentmods.dev/badge/mcp/vlad-public-code/org.json-kula.valem/packaging-valem.svg" alt="Measured on agentmods" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

valem 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 5d 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.

valem-mcp/packaging/server.json · 6 lines

What it actually says

{
  "valem": {
    "url": "https://valem.run/mcp",
    "type": "streamable-http"
  }
}

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.

5d ago First seen · 6 lines scan A 7cdcb932d26d

Subscribe to this mod's changes

valem is an MCP server published in the GitHub repository vlad-public-code/org.json-kula.valem (0 stars, last pushed 7d ago), licensed Apache-2.0. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. 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.

Deterministic agent-tools calculation-engine json jsonata

valem

Getting it into your agent

Wrote this? Show the measurements

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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