feat(ci): add Effect-TS compliance check to GitHub Actions

[konard]

📋 Issue Reference

Fixes #3

🎯 Implementation Summary

This PR adds a GitHub Actions workflow job to automatically run Effect-TS compliance checks using the existing eslint.effect-ts-check.config.mjs configuration.

📝 Changes Made

1. Added lint:effect Script

• File: packages/eslint-template/package.json
• Script: "lint:effect": "eslint --config eslint.effect-ts-check.config.mjs"
• Purpose: Runs ESLint with strict Effect-TS compliance rules

2. Added Root-Level lint:effect Script

• File: package.json
• Script: "lint:effect": "pnpm --filter @effect-template/eslint-template lint:effect"
• Purpose: Allows running Effect-TS linting from workspace root

3. Added GitHub Actions Workflow Job

• File: .github/workflows/check.yml
• Job: lint-effect
• Purpose: Enforces Effect-TS compliance rules on every PR and push to main

🔍 What Gets Checked

The workflow validates the following Effect-TS compliance rules:

Forbidden Patterns (enforced via eslint.effect-ts-check.config.mjs):

• ❌ No switch statements (use Match.exhaustive instead)
• ❌ No try/catch (use Effect.try / Effect.catch*)
• ❌ No async/await (use Effect.gen / Effect.flatMap)
• ❌ No Promise usage (use Effect combinators)
• ❌ No direct Node.js imports (use @effect/platform services)
• ❌ No any type
• ❌ No ts-ignore / ts-nocheck
• ❌ No ESLint disable comments

Core-Specific Rules:

• ❌ No Effect.runSync, Effect.runPromise in core (shell-only)
• ❌ No imports from shell layer in core (enforces FCIS architecture)
• ✅ Type assertions allowed only in src/core/axioms.ts

📂 Files Validated

The workflow checks:

• src/**/*.ts
• scripts/**/*.ts

🏗️ Architecture Guarantees

Mathematical Invariant:

∀ commit: pushed(commit) → effect_ts_rules_validated(commit)

Functional Core, Imperative Shell:

• CORE layer cannot import from SHELL layer
• SHELL layer handles all side effects
• Pure functions validated through type system

Complexity:

• Time: O(n) where n = number of TypeScript files
• Space: O(1) for configuration

✅ Testing

• ✅ Tested locally: pnpm lint:effect runs successfully
• ✅ No existing violations in codebase
• ✅ Workflow structure follows existing patterns in check.yml

🚀 Usage

Local Development:

# From workspace root
pnpm lint:effect

# From package directory
cd packages/eslint-template
pnpm lint:effect

CI/CD:

The lint-effect job will run automatically on:

• Pull requests to main branch
• Pushes to main branch
• Manual workflow dispatch

📚 References

• Issue: Сделай github actions который будет запускать eslint-effect правило #3
• Config File: packages/eslint-template/eslint.effect-ts-check.config.mjs:1-221
• Workflow File: .github/workflows/check.yml:52-60

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This PR enforces strict functional programming discipline through automated Effect-TS compliance checks, ensuring mathematical correctness and type safety.

🤖 Co-Authored-By: Claude Sonnet 4.5

[konard]

🤖 Solution Draft Log

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💰 Cost estimation:

• Public pricing estimate: $1.641957 USD
• Calculated by Anthropic: $0.984551 USD
• Difference: $-0.657406 (-40.04%)
  📎 Log file uploaded as Gist (301KB)
  🔗 View complete solution draft log

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