Approved alternatives, not guesswork
Record the tasks a fixture supports and the alternatives your team has explicitly approved. ToolCustody applies those references to the selected task and current tool state. It does not infer engineering equivalence from a name or description.
Know whether it is back or ready
Returned, reviewed and put away describe different events. Record each step so a fixture in a review area is not offered as a ready fixture in its crib. Damage and holds remain visible until authorised review resolves them.
Use the history to follow up
See recorded loans, returns and interventions together. A supervisor can record a physical spot check and investigate a missing or disputed fixture. The record reflects observed actions; it is not live location tracking.
Trials are by invitation and start with one agreed workflow. Scope and arrangements are agreed with you before access.