Add Hardware Repair Companion coworker: appliance & machinery repair with live diagnostics

[Hdhaidong]

Summary

Adds Hardware Repair Companion, a new built-in coworker for repairing home appliances and agricultural machinery — live diagnostics, manuals, parts, and maintenance tracking in one persona.

• Live diagnostics (hardware-link): reads fault codes and telemetry from MHS-connected equipment following the Model Hardware Standard pattern — safety labels first, telemetry as evidence, writes gated behind explicit approval. OBD-II/CAN and BLE service ports come next; when a machine has no digital interface, the manual fallback is named as the normal case, not a failure
• Symptom diagnosis: structured troubleshooting with safety gates — licensed-professional work gets recommended, not walked through
• Manual lookup: service manuals, wiring diagrams, exploded parts views from public sources — cited, paywalled gaps named rather than worked around
• Parts lookup: OEM / aftermarket / used tiers with verified cross-references and model-variant compatibility checks
• Maintenance log: equipment registry, per-device service history, and due-briefs that flag repair-versus-replace math

Design notes

• Follows the existing persona bundle shape (manifest.md + skills/), like cloud-posture and security
• Uses only catalog capabilities (files, search, shell, todo) plus the browser connector — no API keys required
• Safety-first system prompt: power-off verification, licensed-professional gates for gas / refrigerant / mains work, never bypassing interlocks or guards
• Hardware writes (through MHS, adapters, or any interface) only with explicit approval, each preceded by what it commands and what could go wrong
• Recommended model: Claude first, per the creator's intent
• Validated locally with the repo's own parse_manifest / PersonaRegistry loaders — loads, surfaces in the picker, and skill folders match the declared skills: list

Files

coworker/personas/builtin/hardware-repair-companion/
├── manifest.md
└── skills/
    ├── manual-lookup/SKILL.md
    ├── symptom-diagnosis/SKILL.md
    ├── parts-lookup/SKILL.md
    ├── hardware-link/SKILL.md
    └── maintenance-log/SKILL.md

---

Created by Hdhaidong — custom business-agent creator. Happy to iterate on the prompt, skills, or tool grants based on maintainer feedback.