TypeSafe Jev

io.github.PerryLinkPublished by GitHub account PerryLinkv0.4.1Updated Oct 24, 2026

MCP server over TypeSafe Jev: typed ask, rank and check judgments return calibrated probabilities.

The publisher's own server: type.com

VerifiedSTDIODesktop onlyAI & ML

Overview

AI-generated overview

A local MCP server over TypeSafe Jev that lets an assistant ask, rank and check judgments and receive calibrated probabilities.

What you can do
Ask typed questions and get judgments back as calibrated probabilities rather than plain answers. Rank options or candidates through the same judgment interface. Check or validate judgments against the typed model. All of this runs locally as a stdio process on the user's machine.
When to use it
Worth adding when you want an assistant to work with probabilistic judgments — comparing options, ranking candidates, or checking a claim — instead of free-form text answers.
Requirements
Runs as a local stdio process installed from the npm package jevcore-mcp, so a Node.js runtime is needed. No authentication, environment variables or headers are declared. Desktop-only; not available as a web executable.
Before you install
The manifest lists no tools, so what the assistant can actually call is unclear until you inspect it after connecting. No credentials are requested, but the server runs locally with your user's permissions.

Installation

In SourceWeft

  1. Open TypeSafe Jev in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v0.4.1LatestSep 20, 2026

Score

25% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.

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