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jev-mcp

blakestone-x/jev-mcp

MCP server exposing Jev typed judgments as tools for any agent.

Infra / SDKs / Integrations0.81Runner-up: Classification & RoutingQuestionnaire
Automated README summary

Automatically summarized from the README on 20 Sept 2026; not a run by jevbooks. Run instructions and author-reported outcomes still need verification.

What it is

A Python MCP server that exposes TypeSafe Jev's typed classify, score, check, match, and screen judgments as tools, so any MCP-capable agent can get calibrated confidence on closed-answer decisions.

How it uses Jev

Each tool sends a state plus a typed question (Choice, Score, or Noul) to Jev and returns a structured envelope with the answer, confidence, probabilities, and band. Agents call jev_classify, jev_score, jev_check, jev_match, or jev_screen; policy thresholds live in jev_mcp/questions.py.

Primitives:choicescorenoul

Technique worth stealing

Order-ensemble turns disagreement between reversed criteria orders into a cheap review signal.

Try it

Set TYPESAFE_API_KEY, then run uvx --from git+https://github.com/blakestone-x/jev-mcp@v0.2.1 jev-mcp.

View on GitHub

Start using Jev: API key and your first request →

Model judgments from README excerpts

Project signals use repository metadata, an existing summary and the first 700 README characters, not the full project. “Not found” means not detected in that material; it does not establish absence. These are the original judgments with recorded models and dates, not source audits or run results.

Models & evaluation dates

Inclusion gate
jev-1.13.0
Project signals
jev-1.13.0
Category
jev-1.13.0
Pattern tags
jev-1.13.0

Evidence

These signals use repository metadata, an existing summary and at most 700 cleaned README characters. ≥ 0.60 means reported in that excerpt; ≤ 0.40 means not found there. The middle band is inconclusive. None is a source-code audit or a test result. The runnable-tool question excludes research experiments; the recommendation question asks for a learning shortlist, not a quality verdict.

  • Jev is core to the projectFound in material0.95
  • Shows a System One patternnot found in the excerpt0.32
  • Describes handling uncertaintynot found in the excerpt0.05
  • Reports measured numbersnot found in the excerpt0.26
  • Is a runnable toolFound in material0.98
  • Top-10 learning shortlist signalnot found in the excerpt0.32
  • Is a replica of the modelnot found in the excerpt0.04
  • Solves a common problem (0–2)score on a 0–2 scale1.40 / 2
  • About JevFound in material0.98
Signals
Jev is core to the project0.95Shows a System One pattern0.32Describes handling uncertainty0.05Reports measured numbers0.26Is a runnable tool0.98Top-10 learning shortlist signal0.32Is a replica of the model0.0400.51Solves a common problem (0–2)1.40 / 2012

no-judgment band (0.40–0.60)

Design patterns
Questionnaire0.77Check-up0.56Scorecard0.46Fail open, fail closed0.38Menu0.26Funnel0.2300.51

no-judgment band (0.40–0.60)

The Jev model and date for each judgment stage are listed above. Card written by DeepSeek V4.1 Flash from the README on 20 Sept 2026.