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pi-typesafe

twilwa/pi-typesafe

TypeSafe Jev hazard and diff-quality checks for Pi coding tools.

Automated README summary

Automatically summarized from the README on 27 Sept 2026; not a run by jevbooks. Run instructions and author-reported outcomes still need verification.

What it is

A Pi coding-agent extension that runs four pre-flight hazard checks before bash, write, and edit, plus four diff-quality checks after successful write and edit, using the TypeSafe AI System One API (Jev).

How it uses Jev

Jev answers typed questions per phase: pre-flight uses Choice with labels "true"/"false" for destructive, credentials, outsideRepository, weakensTests; the critic uses Score (0-2) for style, implementation, errorHandling, taskScope. The extension applies confidence and minScore thresholds, then records assessments and appends fixed feedback text.

Primitives:choicescore

Technique worth stealing

Share one TypeSafe System One request per phase across four checks, with per-check confidence and minScore thresholds.

Try it

npm ci; npm run check; pi -e ./src/extension.ts (set TYPESAFE_API_KEY to enable evaluation).

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 material0.83
  • Shows a System One patternunclear0.43
  • Describes handling uncertaintyFound in material0.77
  • Reports measured numbersnot found in the excerpt0.05
  • Is a runnable toolFound in material0.96
  • Top-10 learning shortlist signalnot found in the excerpt0.34
  • Is a replica of the modelnot found in the excerpt0.03
  • Solves a common problem (0–2)score on a 0–2 scale1.31 / 2
  • About JevFound in material0.98
Signals
Jev is core to the project0.83Shows a System One pattern0.43Describes handling uncertainty0.77Reports measured numbers0.05Is a runnable tool0.96Top-10 learning shortlist signal0.34Is a replica of the model0.0300.51Solves a common problem (0–2)1.31 / 2012

no-judgment band (0.40–0.60)

Design patterns
Inspection0.97Questionnaire0.89Traffic light0.87Fail open, fail closed0.84Viewfinder0.61Scorecard0.49Question bank0.47Prefetch0.37Grey zone0.36Funnel0.2600.51

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 27 Sept 2026.