Guides / Learn through questions
Start with an ordinary record. Separate the claim, its grounds and the decision that follows.
Guide / Missing evidence
“No matching record was found” describes a search result. To use it as evidence that an event did not occur, you need additional grounds about what should have been recorded and what the search covered.
Comparison / Related concepts
Telemetry can help explain a system's behavior. Witnessability asks how available materials and arguments support a particular proposition under explicit conditions.
Examples / Three ordinary records
These teaching examples separate what is observed, what the evidence can support and what needs an additional basis. They are illustrative cases, not reports of tests run on a real deployment.
Start here
Witnessability concerns our ability to produce, preserve and make available the evidence and reasoning needed to assess a specific claim. It starts with a question: what can someone establish about something they did not observe themselves?
Guide / Three different questions
A record can pass a technical check while leaving the claim you care about unresolved. A supported claim can still be insufficient for a decision. Keeping these questions separate makes the result more useful.
Guide / Execution evidence
A request, an execution record and an observed effect answer different questions. To understand an AI agent or software workflow, identify the exact boundary behind each piece of evidence.
Reference / Plain-language terms
These short explanations help you read the site. Definitions in a cited specification apply within that document's own scope and version. This glossary does not replace them or create a new standard.