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 Pi coding harness where any LLM writes code while TypeSafe Jev supplies typed reflexes for policy, loop detection, and edit review. Aimed at developers who want calibrated S1 judgments without handing isolation to a model. Explicitly not a sandbox.
How it uses Jev
Per reflex, Bicameral builds redacted state plus a pack of Choice/Score/Noul questions and sends them to Jev, which returns probabilities. Pure decide* functions turn those probabilities, via bicameral.yaml thresholds, into allow, confirm, block, warn, or steer for the Pi agent. Jev never generates text.
Primitives:choicescorenoul
Technique worth stealing
Prefetch the S1 judgment on message_update so Gate's answer is ready before tool_call.
Try it
pnpm install, then pi install "$(pwd)/packages/pi-bicameral"; set TYPESAFE_API_KEY for live Jev.
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 material0.94
- Shows a System One patternFound in material0.85
- Describes handling uncertaintynot found in the excerpt0.18
- Reports measured numbersnot found in the excerpt0.04
- Is a runnable toolFound in material0.88
- Top-10 learning shortlist signalunclear0.47
- Is a replica of the modelnot found in the excerpt0.04
- Solves a common problem (0–2)score on a 0–2 scale1.38 / 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 20 Sept 2026.