Development History

This document provides a summarized chronological history of the Sigilweaver project from its inception through January 2026, organized newest-first.

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Summary Statistics

Period	Commits
January 2026	30
December 2025	240
November 2025	96
October 2025	87
September 2025	36
August 2025	111
Total	600

Key Milestones

1. January 2026 - Monorepo consolidation and production deployment support
2. December 2025 - Hub platform launch and comprehensive file format support
3. November 2025 - Monaco editor integration and multi-tab support
4. October 2025 - Backend creation and monorepo formation
5. August 2025 - Project inception with core canvas and workflow management

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2026

January 2026

Week 5 (Jan 29-31)

Production Hardening

• Docker Secrets - Production security hardening with Docker secrets management
• PostgreSQL Dev Access - Enabled postgres host access in dev mode
• Documentation Standardization - Consistent port references and configuration docs

Week 4 (Jan 20-29)

Docker & Desktop Runtimes

• Docker Production - Production deployment support for Hub and Server
• Tauri Support - Added Tauri as alternative desktop runtime to Electron
• Auth Simplification - Hub authorization simplified to opaque tokens

Week 1 (Jan 1-4)

Monorepo Consolidation & Legal

• Unified Connections - Connections merged with file browser support across Hub/Server/Studio
• API Versioning - Hub API migrated to v1 versioned format
• Grant Groups - Permission bundling for simplified access control
• Contributor License Agreement - Added CLA with human-readable summary
• ConfigSelect Fix - Handle empty string values with error boundaries
• Docs Repo Merge - Documentation merged into main monorepo for reduced friction
• Site Repo Merge - Marketing site merged for unified CI/CD
• Legal Housekeeping - Updated ownership to Sigilweaver Holdings LLC / Sigilweaver LLC structure
• Port Standardization - Adopted 258xx scheme (Studio: 25810, Server: 25811, Hub: 25802/25803)

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2025

December 2025

Week 5 (Dec 29-31)

Hub Expansion

• Server Groups - Logical server grouping with audit events and execution records
• Role Separation - Prevent admin-level users from joining groups
• Role-Based Views - UI separation based on user roles
• Health Monitoring - Connection health checks and self-service endpoints
• Schedule Fixes - Preserve unset fields in schedule updates, block auditor deletes

Week 4 (Dec 27-28)

Hub Platform Launch

• Hub Scaffold - Initial orchestration platform with FastAPI backend and React frontend
• Server Registry - Server health polling and registration
• Directory Rename - backend/ → server/, frontend/ → studio/
• Authentication System - Session-based auth with user registration, login, and admin panel
• Connection Access Control - Groups-based permissions for connections
• Hub Execution Layer - Transparent execution through Hub for Studio
• Workflow Management - CRUD operations for Hub-managed workflows
• Execution Scheduling - Cron-based workflow execution with start_at field
• Touchscreen Support - Comprehensive touch/gesture support
• Viewport Tab Isolation - Restore viewport state correctly when switching tabs

Week 4 (Dec 22-26)

Platform & UI Modernization

• Radix UI Migration - Adopted Radix primitives for menus, checkboxes, and selects
• Platform Abstraction - Electron/Web abstraction layer
• Theme System Overhaul - 20+ themes with light variants for 5 popular themes
• Safety Checks - Resource exhaustion prevention in Pivot/Join/Unpivot
• Tool Palette Consolidation - Collapsible categories in left pane
• UX Improvements - Drag-from-socket menus, right-click canvas menus, tab drag-and-drop reordering
• Custom Icons - Custom Sigilweaver icon for Join tool, FileDown for Output
• ConfigColumnSelector - Multi-select column reordering primitive

Week 3 (Dec 18-21)

Caching & Performance

• Tool Cache - Blocking cache with TTL and LRU eviction for expensive operations
• Cache Management - Force-refresh support, clear cache option, batch close endpoint
• Parallel Execution - Optional parallel execution for independent tools
• ExecutionPlanner/CacheManager - Extracted from monolithic executor
• Sample Tool - Row sampling with multiple modes
• Unique Tool - Deduplication with two output modes
• Pivot/Unpivot Tools - Data reshaping (pivot wide/long)
• Column Profiling - Quality metrics endpoint and ProfileViewer UI
• Component Reorganization - Domain-based directory structure for frontend

Week 2 (Dec 9-14)

Architecture & Connections

• Connection Manager - Database connections management UI with local and server-managed connections
• Connection Resolver - Extracted from executor to dedicated module
• uv Package Manager - Adopted for faster, reproducible Python builds
• SQL Configuration - Monaco editor for SQL query input
• Port Standardization - Backend port updated to 8001 for concurrent dev/test
• Canvas Hooks Refactor - Extracted inline logic into dedicated hooks with tests

Week 1 (Dec 1-7)

Workflow & I/O Improvements

• Ephemeral Token Auth - Desktop mode authentication for backend
• DataTable Virtualization - Row virtualization for large datasets
• Cross Join - Support for joins without keys specified
• Excel Support - Input and output for .xlsx and legacy .xls files
• JSON/NDJSON - JSON data source support
• Apache Arrow IPC - Feather file format support
• Apache Avro - Avro file format support
• ODS Format - OpenDocument Spreadsheet support
• Documentation Help Links - Tool configuration UIs link to relevant docs
• Lucide Icons - Replaced emoji icons with consistent icon library
• Wayland Compatibility - Improved DevTools handling and file dialogs

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November 2025

Week 5 (Nov 27-30)

Core Tools & UI

• Summarize Tool - Aggregation operations with grouped statistics and field action dropdowns
• Sort Tool - Multi-column sorting with configuration UI
• Join Tool - Multi-table joins with socket-specific metadata API and type compatibility
• Audit Logging - Middleware for request/response tracking
• Monaco Autocomplete - Method chaining, multi-line support, function snippets
• Edge Styles - Configurable connection line types

Week 4 (Nov 24-26)

Editor & Tabs

• Monaco Editor - Integrated for Formula and Filter expression editing with autocomplete
• Workflow Archival - Structured logging and API integration for workflow archives
• Wrangler Config - Cloudflare Pages deployment configuration
• Metadata Autocomplete - Column name suggestions in Formula/Filter tools

Week 4 (Nov 22-24)

Multi-Tab & Data Preview

• Multi-Tab Support - Workflow tabs with dirty state tracking
• Cross-Session Persistence - State management and credits dialog
• Data Preview - Socket tabs sidebar for quick preview switching
• DataTable Enhancements - Row numbers, formatting, clipboard copy
• Select Tool - Column selection/reordering tool
• Union Tool - Combine multiple datasets with Python code generation
• Downloads Page - Verification features and platform-specific instructions

Week 1 (Nov 1-2)

Scripts & Quality

• Dev Scripts - Cross-platform dev.py, test.py, and build.py scripts
• Type Annotations - Comprehensive static analysis support for backend
• Backend API Refactor - Socket-specific schema and preview data support
• Ruff Linting - Automated lint fixes and manual error resolution

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October 2025

Week 5 (Oct 29)

Monorepo Formation

• Monorepo Merge - Combined frontend and backend into single repository
• CI/CD Migration - Reused workflows from previous monorepo attempt
• Build Scripts - Comprehensive build and test scripts with platform support
• Parquet Input - Added Parquet file format support
• lsb-release - Linux CI build dependency added

Week 4 (Oct 25-28)

Backend Development

• PyInstaller Support - Standalone executable builds
• Electron-Backend Integration - Electron manages backend process lifecycle
• Python Code Generation - Workflow-to-Python code preview generation
• Output Tool - CSV file output with configuration component
• Formula Configuration - UI for configuring formula expressions
• Bottom Pane - Data preview and logs panel

Week 4 (Oct 23-25)

Backend Foundation

• Backend Created - FastAPI backend with configuration, API routes, and health check endpoints
• Data Models - Pydantic models for workflows, data sources, and execution metrics
• Tool Registration - Registry system with factory pattern for data sources
• Formula Tool - Arithmetic, comparison, and string operations with tests
• Filter Tool - Expression-based row filtering with configuration UI
• Backend Integration Tests - Comprehensive API client testing
• CSV Configuration - Polars CSV data source configuration

Weeks 3 (Oct 18-22)

State Management Migration

• Zustand-First Architecture - Migrated from XML-based to Zustand-first state management
• Clipboard Store - Centralized clipboard handling with dedicated store
• History Store - Replaced saveSnapshot with pushState pattern
• Terminology Update - Replaced "XML" references with "JSON" internally
• WorkflowViewer - Renamed from XMLViewer
• File Extension - Updated menu labels and dialogs to reference SWWF format
• useEmission Hook - Added with comprehensive tests

Week 1 (Oct 1)

AI Assistance

• Copilot Instructions - Added context files for AI-assisted development

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September 2025

Week 4 (Sep 27-28)

Enhanced Primitives

• ConfigSelect - Enhanced with search and selection features
• ConfigNumberRange - Numeric input with min/max validation
• CI/CD Enhancements - Restructured workflow with artifact management and parallelization
• README Updates - Configuration primitives guidance

Weeks 1-2 (Sep 1-15)

Configuration Primitives

• ConfigFile - File picker primitive with native browser integration
• ConfigBoolean - Toggle primitive with automatic default filtering
• ConfigField/ConfigText - Text input primitives with validation
• useXMLEmission Hook - Standardized emission pattern for configuration components
• CSV Data Source - Native file browser integration with delimiter detection
• CI Quality Gate - Linting, type-checking, and test requirements
• Type Safety - Replaced any with unknown throughout codebase

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August 2025

Week 4 (Aug 28-31)

Testing & Stability

• Test Infrastructure - Comprehensive test suites for XMLWorkflowManager and Zustand stores
• Security - XXE (XML External Entity) protection added to XMLWorkflowManager
• Coverage Reporting - Added @vitest/coverage-v8 for test coverage metrics
• Wire Management Tests - Extensive tests for tool and wire lifecycle operations
• Arrow Key Movement - Keyboard navigation for selected nodes

Week 3 (Aug 19-23)

Release Pipeline

• Nightly Builds - Tag handling and asset upload process refinements
• Artifact Management - Stable version tag restrictions
• Vitest Configuration - Coverage settings and dependency updates
• CI Workflow - Build, test, and artifact management

Week 2 (Aug 15-18)

Build Infrastructure & Core

• Initial Commit (Aug 15) - Workflow designer application initialized with React, TypeScript, and Electron
• Core Canvas System - React Flow integration with tool socket definitions supporting multiple connections
• XML Workflow Format - XMLWorkflowManager for workflow persistence
• Theme System - Comprehensive theming with CSS custom properties and Tailwind CSS integration
• Wire Connections - Cycle detection and notification system
• Configuration Panel - Resizable tool configuration panel
• Tool Palette - Categorized tool palette with icons
• Grid Snapping - Tool positioning snaps to grid on drop
• Cross-Platform Builds - GitHub Actions workflows for Windows, macOS, and Linux packaging
• Clipboard Operations - Copy/cut/paste with keyboard shortcuts
• File Format - Adopted .swwf extension for workflow files
• History Management - Undo/redo functionality
• Branding - Application named Sigilweaver with custom logo
• Backblaze B2 - Asset publishing (migrated from Cloudflare R2)

Week 1 (Aug 1-9)

Project Genesis

• Workflow Designer Core - Initial React Flow canvas with tool connections
• XMLWorkflowManager - Hybrid JSON/XML management, later refactored to pure XML
• Notification System - Preview functionality and cycle detection warnings
• Tool Definitions - Initial tool socket definitions with multi-connection support
• Website Foundation - Landing page with interactive features
• SEO & Accessibility - Performance enhancements and mobile menu
• Contributing Guide - Contribution documentation with getting started sections
• Edge Management - Connection validation and phantom connection bug fixes