Development Journal - 2025-11-05

Overview

Completed Phase 5 of the tome project by implementing a comprehensive SQLite-based execution history system with CLI commands, seamless executor integration, and robust error handling. This major milestone adds full persistence and analytics capabilities to the notebook execution system with 86% test coverage.

Active Projects: 1 Total Commits: 1

Projects

tome

Commits: 1 | Files Changed: 7

Highlights

Implemented complete SQLite-based execution history persistence system with 430 lines of database code and 86% test coverage
Added comprehensive CLI commands for viewing execution history and statistics with filtering capabilities
Integrated database storage seamlessly with existing NotebookExecutor with graceful error handling
Created robust database schema with performance indexes and context manager support for safe resource handling
Achieved 31/31 passing tests for database functionality with comprehensive coverage of edge cases
Built rich metadata storage system with JSON support and SHA-256 prompt hash calculation for deduplication

Technical Decisions

Chose SQLite for execution persistence due to its simplicity and zero-configuration requirements
Implemented graceful degradation where database failures generate warnings but don't break execution flow
Used SHA-256 hashing for prompt deduplication and JSON for flexible metadata storage
Added performance indexes on key columns (notebook_path, timestamp, model) for fast query performance
Designed database integration as optional feature with --no-db flag for users who don't want persistence

Learning Moments

Implemented comprehensive database testing patterns including concurrent write handling and null value management
Explored context manager patterns for safe SQLite resource handling
Developed patterns for integrating persistence layers without breaking existing functionality

Originally generated by gitmaxxing

Dev Journal: Nov 5, 2025