Sd003 Loop Type

# /sd003:loop-type - TypeScript Type-Check Loop

Run TypeScript type-checking in a loop until all type errors are resolved.

## Purpose

This command activates the Ralph Loop mechanism to automatically retry TypeScript compilation until all type errors are resolved. Use this as a supplementary command for strict type compliance.

## Usage

/sd003:loop-type [max-iterations]

## Parameters

- `max-iterations` (optional): Maximum number of retry attempts. Default: 15

## How It Works

1. Runs `npx tsc --noEmit`
2. If type errors exist, the stop-hook blocks the session end
3. Claude analyzes the errors and attempts to fix
4. Repeat until:
   - All type errors resolved (output contains `TYPE_CHECK_PASS`)
   - Max iterations reached
   - User manually interrupts

## Completion Promise

The loop completes when the output contains: `TYPE_CHECK_PASS`

Set `SD003_COMPLETION_PROMISE=TYPE_CHECK_PASS` before running this command.

## Example Usage

```bash
# Set completion promise for type-check
export SD003_COMPLETION_PROMISE=TYPE_CHECK_PASS
export SD003_MAX_ITERATIONS=15

# Run type-check loop
/sd003:loop-type

Expected Output Format

Your type-check script should output TYPE_CHECK_PASS when there are no errors:

// In package.json scripts
"type-check": "tsc --noEmit && echo 'TYPE_CHECK_PASS'"

Related Commands

• /sd003:loop-test - Test completion loop (primary)
• /sd003:loop-lint - ESLint completion loop

SD003 Philosophy

Supplementary command for the midpoint phase. Use when:

• TypeScript strict mode violations need resolution
• Type safety is critical before proceeding

---

Phase: Midpoint (Phase 2-3) Stop Hook: .claude/hooks/sd003-stop-hook.sh Completion Promise: TYPE_CHECK_PASS ```