Open Arsenal

Every Repair Starts With Evidence.

RepairLedger is an open source repair intelligence platform designed to help people understand, diagnose, repair, maintain, and make informed decisions about physical devices. Built around the principle that Every Repair Starts With Evidence, RepairLedger goes far beyond a conventional troubleshooting assistant. It combines device identification, technical documentation, schematics, diagnostic reasoning, measurements, visual inspection, component identification, physical repair guidance, and repair verification into a unified system. The platform is designed to support everything from consumer electronics and computers to appliances, tools, vehicles, industrial equipment, mechanical systems, and custom-built devices.

RepairLedger places evidence, provenance, and verification at the center of every repair decision. It retrieves applicable documentation, analyzes symptoms and measurements, isolates faults, maps circuit boards, interprets schematics, analyzes advanced electronics and digital signals, and guides disassembly, component replacement, reassembly, calibration, and post-repair testing. The system distinguishes manufacturer-confirmed information from replacement-part manufacturer claims, community knowledge, user observations, measurements, experiments, and AI inference. It does not treat similar devices as interchangeable, and it must not guess when sufficient evidence does not exist. Human-verified replacement parts and user-created solutions can also be incorporated while preserving their verification status and provenance.

RepairLedger also considers everything surrounding the physical repair. Data Preservation protects important information before potentially destructive procedures, while Warranty, Recall, Safety, Legal, and Ownership intelligence helps users understand the consequences of taking action. Advanced physical repair capabilities support board-level repair, custom PCBs, wiring, fabrication, salvaged components, connectors, fasteners, thermal materials, and other real-world repair requirements. Calibration, baseline comparison, regression testing, post-repair validation, repair evidence records, device passports, and repair case histories provide a complete record of what was done and whether the repair actually succeeded.

RepairLedger treats repair as a decision rather than an automatic objective. Its Repair Economics capabilities calculate parts, tools, labor, consumables, risk, expected service life, and total cost of ownership while explicitly comparing repair against purchasing new, used, or refurbished equipment. The system can recommend repairing the device, gathering more evidence, using professional service, preserving data, replacing a component, or replacing the entire device when that is the better evidence-supported outcome. An extensible plugin architecture allows specialized capabilities for vehicles, appliances, computers, industrial equipment, robotics, PCB design, legal research, calibration, parts sourcing, professional repair workflows, fleet management, and predictive maintenance. Through its combination of technical intelligence, physical repair guidance, economic analysis, legal and ownership awareness, and persistent repair knowledge, RepairLedger aims to make devices more understandable, repairs more verifiable, and useful products more repairable.

This specification is released under the AGPL-3.0+ and is free to use with required Section 7 attribution. Organizations seeking attribution-free deployment may obtain a Specification Branding License, with fees based on use and deployment scope.