name: code-refactoring description: Expert refactoring orchestrator for large-scale code changes with change tracking. Use when (1) renaming/moving files or directories, (2) restructuring database schemas, (3) refactoring APIs or Edge Functions, (4) splitting/merging components, (5) querying what changed in a system ("what critical changes were made to subscription system?"). Maintains changelog for docs-updater sync.

Code Refactoring Wizard

Orchestrate large-scale refactoring with change tracking. Uses code-wizard for discovery.

Context Files

For structure and conventions, read from Docs/context/:

• Docs/context/conventions.md - Architecture rules, refactor guidelines
• Docs/context/repo-structure.md - Where to place files
• Docs/context/packages-map.md - Package boundaries

Changelog Location

All significant changes logged to: Docs/ai/CHANGELOG.md

This file is monitored by docs-updater skill for documentation sync.

Change Categories

Workflow

1. Discover (use code-wizard)

/code-wizard "find all usages of ai_plan_quotas table"
/code-wizard "where is subscription logic implemented"

2. Plan

• Current state → Target state
• Migration path
• Rollback strategy
• Affected files list

3. Execute

Order: Database → Backend → Frontend → Tests

4. Log to CHANGELOG.md

## 2026-01-08 - Subscription System Refactor

### [SCHEMA] Replace per-feature quotas with token pools

**Before:**
- `ai_plan_quotas` table (40+ rows)
- Per-feature token limits

**After:**
- `subscription_plans` table
- `token_pools` table
- `ai_operations` table

**Impact:**
- Files: 15 | Migration: Yes | Breaking: Yes

**Related:** #20260108_token_pool_system

5. Sync Docs

/docs-updater "sync changelog to API docs"

Query Changes

To answer "what changed in X system":

1. Read Docs/ai/CHANGELOG.md
2. Filter by date/category/system
3. Summarize

Example response:

## Subscription System Changes (Jan 2026)

1. [SCHEMA] Token pool migration (Jan 8)
   - Replaced ai_plan_quotas → unified token system
   - 15 files, breaking

2. [API] New check_token_balance RPC (Jan 8)
   - User token balance endpoint
   - Non-breaking

Related Skills

References

• Refactoring patterns: See references/patterns.md
• Changelog examples: See references/changelog-examples.md