Automated README summary
Automatically summarized from the README on 19 Oct 2026; not a run by jevbooks. Run instructions and author-reported outcomes still need verification.
What it is
jev-cli exposes OpenRouter's SystemOne decision models (default TypeSafe's Jev) as 15 tools, usable as an MCP server for opencode or any MCP client, and as a plain Unix CLI for everything else.
How it uses Jev
Each tool frames a job as typed SystemOne questions over the given state: noul (probability a statement holds), choice (distribution over fixed options), score (distribution over an integer scale). Results are batched, composed and thresholded into a verdict; ask exposes the primitives directly.
Primitives:choicescorenoul
Technique worth stealing
Reframe each task as a closed-form typed question and read a calibrated probability distribution instead of generated text.
Try it
go install github.com/pyck-ai/jev-cli/cmd/jev@main, then run jev score or jev mcp.
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 material0.83
- Shows a System One patternnot found in the excerpt0.24
- Describes handling uncertaintynot found in the excerpt0.05
- Reports measured numbersnot found in the excerpt0.05
- Is a runnable toolFound in material0.97
- Top-10 learning shortlist signalnot found in the excerpt0.33
- Is a replica of the modelnot found in the excerpt0.04
- Solves a common problem (0–2)score on a 0–2 scale1.10 / 2
- About JevFound in material0.98
no-judgment band (0.40–0.60)
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 19 Oct 2026.