Phase 3: CRUD Operations - MistDemo

[leogdion]

Objective: Complete the CRUD (Create, Read, Update, Delete) operations by implementing update, delete, lookup, and modify commands.

Overview

This phase completes the record manipulation capabilities. After Phase 2 provided query and create, this phase adds:

• Record updates with optimistic locking
• Record deletion
• Batch record lookup
• Batch modify operations (create/update/delete in one request)

Commands to Implement

1. update

• Accepts record name as required argument
• Parses field updates (name:type:value)
• Supports change tag for optimistic locking
• Supports --force flag to override conflicts
• Loads updates from JSON file
• Reads updates from stdin
• Calls MistKit client.updateRecord()
• Handles conflict errors gracefully
• Outputs updated record
• Unit tests for field parsing
• Integration test with mock client
• Test conflict handling

2. delete

• Accepts record name as required argument
• Supports change tag for optimistic locking
• Supports --force flag
• Calls MistKit client.deleteRecord()
• Handles conflict errors
• Outputs deletion confirmation
• Unit tests
• Integration test with mock client

3. lookup

• Accepts multiple record names
• Supports field filtering
• Calls MistKit client.lookupRecords()
• Handles records not found gracefully
• Outputs all found records
• Unit tests
• Integration test with mock client

4. modify

• Parses operations file (JSON)
• Validates operation types
• Supports create, update, delete operations
• Supports --atomic flag for all-or-nothing
• Reads operations from stdin
• Calls MistKit client.modifyRecords()
• Handles partial failures gracefully
• Outputs results for each operation
• Unit tests for operations parsing
• Integration test with mock client
• Test atomic vs non-atomic behavior

Implementation Order

1. delete - Simplest, single record operation
2. update - Similar to create, adds conflict handling
3. lookup - Batch fetch, simpler than modify
4. modify - Most complex, batch operations

Dependencies

Blocked By:

• Phase 1 (core infrastructure) - Phase 1: Core Infrastructure - MistDemo #212
• Phase 2 (essential commands) - Phase 2: Essential Commands - MistDemo #213

Blocks: Phase 4

Complexity: Medium

Key Challenges:

• Optimistic locking conflict handling
• Operations file parsing and validation
• Atomic vs non-atomic batch operations
• Partial failure reporting

Definition of Done

• All four commands implemented
• Unit tests pass with >85% coverage
• Integration tests pass
• Conflict handling tested
• Batch operations tested
• Help text comprehensive
• Examples documented
• Code review complete

---

📖 Full Details: .claude/docs/mistdemo/phases/phase-3-crud-operations.md