Phase 1: Core Infrastructure - MistDemo

[leogdion]

Objective: Establish the foundational architecture for MistDemo including command protocol, configuration management, and output formatting.

Overview

This phase builds the infrastructure that all subcommands will depend on. No user-facing commands are implemented yet—this phase focuses on the plumbing.

Components

1. Command Protocol

• Protocol defined with associated type
• Async execution support
• Configuration loading hooks
• Unit tests for protocol conformance

2. ConfigKeyKit Extensions (Swift Configuration)

• Load JSON configuration files
• Load YAML configuration files
• Read environment variables
• Merge profiles with base configuration
• Resolve configuration priority correctly
• Handle missing configuration gracefully
• Unit tests for all configuration sources
• Integration tests for priority resolution

3. Output Formatters

• JSON formatter with pretty-print option
• Table formatter with aligned columns
• CSV formatter RFC 4180 compliant
• YAML formatter
• Common protocol for all formatters
• Handle nested structures
• Unit tests for each formatter
• Examples of each output format

4. Error Handling

• Comprehensive error types
• JSON error output format
• Error codes
• Actionable suggestions
• Unit tests for error formatting

Implementation Order

1. Command Protocol - Foundation for all commands
2. Configuration Manager - Load and merge configuration
3. Output Formatters - JSON first, then Table, CSV, YAML
4. Error Handling - Consistent error reporting

Dependencies

Blocks: Phase 2, Phase 3, Phase 4

Blocked By: None

Complexity: High

This is the architectural foundation. Getting it right is critical.

Key Challenges:

• Swift Configuration API integration
• Configuration priority resolution
• Table formatter column alignment
• Error handling consistency

Definition of Done

• All components implemented
• Unit tests pass with >90% coverage
• Integration tests pass
• Documentation updated
• Code review complete
• Examples added for each formatter

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📖 Full Details: .claude/docs/mistdemo/phases/phase-1-core-infrastructure.md

[leogdion]

Progress Update

✅ Completed Components

Configuration Management (Commits: d500e0a, 44f4bbf)

• Migrated to Apple's Swift Configuration library
• Environment variable support with automatic key transformation
• In-memory defaults provider
• Hierarchical resolution (Environment → Defaults)
• Type-safe configuration with ConfigReader
• Secret handling for sensitive values
• Removed ArgumentParser dependency

Authentication Infrastructure (Commit: 58b5f2d)

• AuthenticationHelper for all auth methods (API-only, Web Auth, Server-to-Server)
• Database selection logic based on auth method
• Token manager integration
• Comprehensive error handling

⏳ Pending Components

Command Protocol

• Protocol defined with associated type
• Async execution support
• Configuration loading hooks

Configuration Enhancements

• Command-line arguments provider
• JSON/YAML file loading
• Profile support
• Full priority resolution (CLI → Profile → File → ENV → Defaults)

Output Formatters

• JSON formatter
• Table formatter
• CSV formatter
• YAML formatter

Test Coverage

• Configuration tests
• Authentication tests
• Output formatter tests

Notes

• Requires macOS 15.0+ due to Swift Configuration
• Documentation updated in .claude/docs/mistdemo/
• Ready to proceed with Phase 2 essential commands

[leogdion]

Documentation Updated ✅

MistDemo documentation has been updated to reflect the Swift Configuration migration:

Updated Files:

• .claude/docs/mistdemo/phases/phase-1-core-infrastructure.md
• .claude/docs/mistdemo/configkeykit-strategy.md
• .claude/docs/mistdemo/swift-configuration-reference.md (new)

Follow-up Work:

• Optimize command-line argument parsing from O(n×m) to O(n+m) #221: Performance optimization for manual argument parsing
• Replace hardcoded argument name mappings with definitions alongside config keys #222: Refactor hardcoded argument name mappings

Migration complete! 🎉