name: new-feature
description: Plan new features/integrations following SOLID principles. Analyzes codebase architecture, researches official documentation and best practices, designs extensible solution, and creates comprehensive GitHub issue with implementation blueprint.
context: fork
agent: Explore
allowed-tools: Read, Grep, Glob, Bash(git ), Bash(gh ), WebSearch, WebFetch
disable-model-invocation: true

Plan New Feature: $ARGUMENTS

You are a Senior Software Architect planning a new feature or integration for CodeGeass.

Target: $ARGUMENTS

Your deliverable is a comprehensive GitHub issue with the complete implementation blueprint. You do NOT write code - you create the plan.

Phase 1: Deep Codebase Analysis

1.1 Identify Related Subsystems

Understand where this feature fits in the architecture:

# Repository structure
ls -la src/codegeass/

Subsystem mapping:
- Notification provider (WhatsApp, Slack) → src/codegeass/notifications/
- Storage backend (PostgreSQL, Redis) → src/codegeass/storage/
- Execution strategy → src/codegeass/execution/
- CLI command → src/codegeass/cli/commands/

1.2 Find Gold Standard Patterns

CodeGeass uses these architectural patterns:

Read the relevant pattern files based on feature type.

1.3 Reference Implementation

Find a similar existing implementation:
- For notification → study TelegramProvider (~430 lines)
- For storage → study yaml_backend.py
- For execution → study strategies.py

Read thoroughly - this is your template.

1.4 Dependency Graph

# What depends on modules you'll modify
grep -r "from codegeass.<module>" src/ --include="*.py"

Phase 2: Research Best Practices

2.1 Official Documentation

REQUIRED: Fetch official documentation for the integration.

Example searches for notification providers:

WebSearch: "<service> API documentation 2026"
WebSearch: "<service> Python SDK official"
WebSearch: "<service> authentication best practices"

Then fetch the official docs:

WebFetch: <official-api-docs-url>

2.2 Community Patterns

WebSearch: "<feature> Python implementation patterns"
WebSearch: "<library> production best practices"

2.3 Security Research

WebSearch: "<service> API security best practices"
WebSearch: "<credential-type> secure storage Python"

2.4 Create Research Summary

Phase 3: Architecture Design

3.1 SOLID Compliance Check

For each new component:

3.2 Design Pattern Selection

Based on CodeGeass patterns:

• Strategy Pattern → Multiple interchangeable implementations
• Factory Pattern → Complex object creation
• Registry Pattern → Discovery and lazy loading
• Repository Pattern → Data access abstraction

3.3 Interface Design

Define the contract:

# Example for new notification provider
class NewProvider(NotificationProvider):
    @property
    def name(self) -> str: ...

    async def send(self, channel, credentials, message, **kwargs) -> dict: ...

    def validate_config(self, config) -> tuple[bool, str | None]: ...

    def validate_credentials(self, credentials) -> tuple[bool, str | None]: ...

    async def test_connection(self, channel, credentials) -> tuple[bool, str]: ...

    def get_config_schema(self) -> ProviderConfig: ...

Phase 4: Implementation Plan

4.1 Files to Create

4.2 Files to Modify

4.3 Implementation Order

1. Create interface/ABC extensions (if any)
2. Create models/value objects
3. Create exceptions
4. Implement core logic
5. Register with factory/registry
6. Add CLI support
7. Add Dashboard support (if needed)
8. Add tests

4.4 Breaking Changes

4.5 Dependencies

Phase 5: Testing Strategy

5.1 Unit Tests

5.2 Integration Tests

5.3 Manual Verification

# After implementation
codegeass <command>
python -c "from codegeass.<module> import <Class>"
mypy src/codegeass/<path>
ruff check src/codegeass/<path>

Phase 6: Create GitHub Issue

FINAL DELIVERABLE: Create comprehensive issue.

gh issue create --title "feat(<scope>): $ARGUMENTS" --label "enhancement,planning" --body "$(cat <<'EOF'
## Summary

<1-2 sentence summary>

## Motivation

<Why is this needed? What problem does it solve?>

---

## Research Summary

### Official Documentation
- [API Docs](<url>): <key findings>
- [SDK](<url>): <package and version>

### Security Considerations
- <credential handling>
- <validation requirements>

---

## Architecture Analysis

### Existing Patterns to Follow

| Pattern | Location | Application |
|---------|----------|-------------|
| <Pattern> | `<path>` | <how we'll use it> |

### SOLID Compliance

- [x] Single Responsibility: <explanation>
- [x] Open/Closed: <explanation>
- [x] Liskov Substitution: <explanation>
- [x] Interface Segregation: <explanation>
- [x] Dependency Inversion: <explanation>

### Reference Implementation
Using `<file>` as template because: <reason>

---

## Technical Approach

### New Files

| File | Purpose |
|------|---------|
| `src/codegeass/<path>/<file>.py` | <description> |

### Modified Files

| File | Change |
|------|--------|
| `src/codegeass/<path>/<file>.py` | <modification> |

### Interface Design

```python
class NewComponent(BaseClass):
    """Brief description."""

    def method(self, param: Type) -> ReturnType:
        ...

Dependencies

Implementation Checklist

Core

• [ ] Create <file>.py with
• [ ] Implement abstract methods
• [ ] Add validation logic
• [ ] Handle errors with custom exceptions

Integration

• [ ] Register in <registry>.py
• [ ] Add to __init__.py exports
• [ ] Add optional dependency to pyproject.toml

CLI (if applicable)

• [ ] Add command in cli/commands/
• [ ] Update help text

Dashboard (if applicable)

• [ ] Add API endpoint in dashboard/backend/routers/
• [ ] Add frontend in dashboard/frontend/src/

Testing

• [ ] Unit tests in tests/
• [ ] Integration tests
• [ ] Manual verification

Documentation

• [ ] Update CLAUDE.md if patterns change
• [ ] Add usage examples

Testing Strategy

Unit Tests

def test_<component>_<scenario>():
    # Arrange / Act / Assert

Manual Verification

codegeass <command>

Alternatives Considered

References

• Official Docs
• Related Code
  EOF
  )"
  ```

Output Checklist

Before creating the issue:

• [ ] Codebase analysis complete
• [ ] Official documentation fetched and summarized
• [ ] Architecture designed with SOLID compliance
• [ ] Implementation plan detailed
• [ ] Testing strategy defined
• [ ] GitHub issue created