Make behavior legible
When software takes a consequential step, users and operators need more than a success state. They may need to know what action occurred, which inputs were considered, what permissions were used and where a person can intervene.
An explanation is not a substitute for correctness or security. It is one part of a system that also needs clear boundaries, appropriate access controls, useful records and a path to recover from mistakes.
- 01REQUESTIntent & scopeUser · permissions
- 02SYSTEM ACTIONTool · result · statusSuccess or recoverable error
- 03ACTIVITY RECORDUseful contextInspect · recover · learn
Design for the person investigating
A useful activity record should answer the questions that arise during ordinary work and incident review. The right details depend on the system and its data practices; collecting more information is not automatically better.
- What did the system do, and what is its current status?
- Which inputs, tools or permissions were relevant?
- Can an operator pause, reverse or escalate the action?
- Does the record avoid exposing information that is not needed?
Treat failure paths as product paths
Systems that depend on models, external tools or changing data need visible failure states. A timeout, rejected action or uncertain result should not look like a successful completion. The interface can explain what remains unfinished and what safe next step is available.
These are engineering prompts rather than reported test outcomes. They should be adapted to the product’s threat model, users and operational requirements.
What to examine next
Choose a representative action and trace it through request, execution, record and recovery. Review that trace with the people who would use it during normal operation and during an incident. Document the decisions and gaps before treating the design as complete.
Selected references
External resources that inform the questions in this note. They are background reading, not evidence for a Sixfolds Lab product claim.