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effect-v4-audit

v0.2.2

Published

Deterministic Effect v4 migration audit CLI

Readme

effect-v4-audit

Deterministic CLI audit for v3-era Effect APIs in Effect v4 migrations. Built on Effect v4 beta CLI APIs (effect/unstable/cli).

Demo

effect-v4-audit demo

Install

bunx effect-v4-audit --help

Local Development

git clone https://github.com/agustif/effect-v4-audit.git
cd effect-v4-audit
bun install

Then run:

bun run ./src/bin.ts --help

Usage

effect-v4-audit \
  --cwd . \
  --pattern "**/*.{ts,tsx,mts,cts}" \
  --ignore "**/*.gen.ts" \
  --color auto \
  --format diagnostic \
  --fail-on-findings

Output

  • diagnostic: rust-style diagnostics with source snippet and help hint.
  • table: compact findings with path, line/column, and migration suggestion.
  • json: stable machine-readable report for CI.

Guarantees

  • deterministic file ordering and finding ordering
  • deterministic summary counters and per-rule map ordering
  • exits with code 1 only when --fail-on-findings is passed and findings exist

Limitations

  • rule-based text scan; does not parse full TypeScript AST
  • may flag strings/comments containing legacy API text
  • rules are intentionally conservative and not a full migration codemod