Production Debugging Framework

Overview

A comprehensive debugging and verification framework that provides systematic workflows for resolving Vue 3 + TypeScript compilation and runtime errors. This skill transforms chaotic debugging sessions into structured, efficient problem-solving processes with zero-error tolerance.

When to Use This Skill

Immediate Activation Required:

• TypeScript compilation errors (any type)
• Vite build failures
• Import/module resolution errors
• Component rendering issues
• Runtime errors in browser
• Test failures
• Any development blocker

Preventive Use:

• Before committing code
• Before creating pull requests
• After major refactoring
• During feature development
• Production deployment preparation

Core Capabilities

1. Zero-Error Verification System

7-phase systematic verification before any development:

1. Working Baseline - Confirm recent passing state
2. Clear All Errors - Start with clean slate
3. Partial Build Fix - Fix surface-level issues first
4. TypeScript Foundation - Restore structural integrity
5. CSS/Design System - Fix styling inconsistencies
6. Critical Functionality - Restore core workflows
7. Deep Error Resolution - Handle remaining complex issues

2. Error-Specific Debugging Protocols

TypeScript Structural Errors (skill://ts-foundation-restorer)

Trigger: TS2339, TS2345, TS2322, TS7005, missing properties Protocol:

• Read entire file context
• Cross-reference with interfaces/types
• Update ALL affected locations
• Validate with typecheck command

Import/Module Resolution Errors

Trigger: Module not found, import path failures Protocol:

• Use npm run validate:imports for detection
• Check actual file paths vs imports
• Update import statements systematically
• Verify barrel exports consistency

Component Reference Errors

Trigger: Component failed to resolve, render failures Protocol:

• Verify component registration
• Check import/export consistency
• Validate component naming conventions
• Test with explicit imports

3. Master Debugging Workflow

Copy and paste this master prompt whenever encountering errors:

I have a [ERROR TYPE] error in my Vue 3 + TypeScript project.

CONTEXT:
- Project: Pomo-Flow (Vue 3 + TypeScript + Vite + Pinia)
- Latest Working: [describe last working state]
- Current Error: [paste exact error message]
- Error Location: [file:line or component]
- Recent Changes: [what changed since working state]

DEBUGGING REQUIREMENTS:
1. Use production-debugging-framework skill
2. Follow 7-phase zero-error verification
3. Apply error-specific protocol for [ERROR TYPE]
4. Read full files for complete context
5. Document the fix and root cause
6. Verify fix with appropriate validation command
7. Confirm return to working state

ERROR DETAILS:
[Paste full error output with stack trace]

4. Production Stability Audit

5-phase comprehensive testing before deployment:

Phase 1: Zero-Error Validation

• All compilation errors resolved
• TypeScript compilation passes (npm run typecheck)
• No console errors in browser
• All linter issues resolved

Phase 2: Build Process Integrity

• Production build succeeds (npm run build)
• Bundle analysis shows no unexpected increases
• Critical dependencies are properly bundled
• No missing assets or broken imports

Phase 3: Core Functionality Testing

• Task creation workflow works
• Canvas interactions functional
• Timer operations stable
• Data persistence verified (IndexedDB)
• View switching works properly

Phase 4: Browser Compatibility

• Chrome/Chromium compatibility
• Firefox compatibility
• Safari/WebKit compatibility
• Mobile browser functionality
• Cross-tab synchronization

Phase 5: Performance Validation

• Application startup time < 3 seconds
• Memory usage stable during operations
• No memory leaks during extended use
• Canvas interactions remain responsive
• IndexedDB operations performant

5. Common Error Patterns and Solutions

Pattern 1: Cascading TypeScript Failures

Symptoms: 100+ TS errors after dependency update Solution: Use ts-foundation-restorer skill immediately Protocol: Restore foundation before fixing individual errors

Pattern 2: Vite Build Path Resolution

Symptoms: Module not found in production build Solution: Verify import paths and barrel exports Protocol: Use npm run validate:imports and check index.ts files

Pattern 3: Component Registration Failures

Symptoms: Component failed to resolve Solution: Check component naming and import consistency Protocol: Verify component registration and imports

Pattern 4: Canvas/Dragging Issues

Symptoms: Vue Flow interactions not working Solution: Check Vue Flow parent-child relationships Protocol: Verify extent constraints and event handling

6. Validation Commands

Use these commands systematically during debugging:

# TypeScript compilation
npm run typecheck

# Import validation
npm run validate:imports

# CSS validation
npm run validate:css

# Dependency checks
npm run validate:dependencies

# Full validation suite
npm run validate:all

# Production build test
npm run build

# Test suite
npm run test

7. Documentation Requirements

Every debugging session must include:

Before Fixing

• Exact error message and stack trace
• File and line location
• Recent changes that may have caused the issue
• Current working state (what works)

After Fixing

• Root cause analysis
• Specific change made
• Files affected
• Validation command used
• Confirmation of working state

Knowledge Transfer

• Update related documentation if needed
• Note any patterns discovered
• Record solutions for future reference

Resources

references/

Contains detailed debugging guides and protocols:

• master-prompt.md - Copy-paste debugging prompt template
• zero-error-verification.md - Detailed 7-phase verification process
• production-audit.md - 5-phase production stability checklist
• error-guides/ - Specific protocols for each error type:
  • typescript-structural.md - TS2339, TS2345, TS2322 handling
  • imports-modules.md - Module resolution and import path fixes
  • runtime-errors.md - Browser runtime error debugging
  • component-refs.md - Component registration and resolution issues

scripts/

Automation scripts for systematic debugging:

• error-detector.py - Automated error classification and routing
• validation-runner.sh - Sequential validation command execution
• typescript-fixer.py - Automated TypeScript structural repairs
• import-fixer.py - Import path resolution and correction

assets/

Templates and checklists:

• debugging-checklist.md - Printable debugging workflow checklist
• error-report-template.md - Standardized error reporting format
• production-audit-checklist.md - Pre-deployment verification checklist

Usage Examples

Example 1: TypeScript Compilation Error

User: "I'm getting TS2339: Property 'tasks' does not exist on type..."

System: Activates production-debugging-framework
→ Applies TypeScript structural error protocol
→ Uses ts-foundation-restorer if cascade detected
→ Reads full file context
→ Updates all affected interfaces
→ Validates with npm run typecheck
→ Confirms working state restored

Example 2: Build Process Failure

User: "Production build fails with module not found error"

System: Activates production-debugging-framework
→ Runs 7-phase zero-error verification
→ Uses import validation protocol
→ Checks barrel exports and file paths
→ Fixes import statements systematically
→ Validates with npm run build
→ Confirms build success

Example 3: Runtime Component Error

User: "Component failed to resolve in browser console"

System: Activates production-debugging-framework
→ Applies component reference error protocol
→ Checks component registration and imports
→ Validates component naming conventions
→ Tests with explicit imports
→ Verifies in browser
→ Confirms resolution

Integration With Other Skills

• ts-foundation-restorer: Automatic activation for TypeScript cascades
• dev-debugging: General Vue.js debugging techniques
• dev-fix-pinia: Store-specific debugging protocols
• dev-fix-timer: Timer component debugging
• qa-testing: Validation through automated testing

Quality Assurance

Success Criteria

• All errors completely resolved
• Application builds successfully
• Core functionality verified working
• No new issues introduced
• Documentation updated with fix details

Failure Prevention

• Always use systematic verification
• Never skip validation steps
• Document all changes made
• Test with realistic scenarios
• Verify no regression in other areas

Metrics and Monitoring

Track debugging effectiveness:

• Time to resolution
• Number of files affected
• Root cause categories
• Prevention opportunities
• Knowledge transfer value

This skill transforms debugging from reactive problem-solving into systematic, zero-tolerance error resolution with complete documentation and prevention focus.

MANDATORY USER VERIFICATION REQUIREMENT

Policy: No Fix Claims Without User Confirmation

CRITICAL: Before claiming ANY issue, bug, or problem is "fixed", "resolved", "working", or "complete", the following verification protocol is MANDATORY:

Step 1: Technical Verification

• Run all relevant tests (build, type-check, unit tests)
• Verify no console errors
• Take screenshots/evidence of the fix

Step 2: User Verification Request

REQUIRED: Use the AskUserQuestion tool to explicitly ask the user to verify the fix:

"I've implemented [description of fix]. Before I mark this as complete, please verify:
1. [Specific thing to check #1]
2. [Specific thing to check #2]
3. Does this fix the issue you were experiencing?

Please confirm the fix works as expected, or let me know what's still not working."

Step 3: Wait for User Confirmation

• DO NOT proceed with claims of success until user responds
• DO NOT mark tasks as "completed" without user confirmation
• DO NOT use phrases like "fixed", "resolved", "working" without user verification

Step 4: Handle User Feedback

• If user confirms: Document the fix and mark as complete
• If user reports issues: Continue debugging, repeat verification cycle

Prohibited Actions (Without User Verification)

• Claiming a bug is "fixed"
• Stating functionality is "working"
• Marking issues as "resolved"
• Declaring features as "complete"
• Any success claims about fixes

Required Evidence Before User Verification Request

1. Technical tests passing
2. Visual confirmation via Playwright/screenshots
3. Specific test scenarios executed
4. Clear description of what was changed

Remember: The user is the final authority on whether something is fixed. No exceptions.