These terms help teams talk about replay checkpoints, GhostLog-style receipts, continuity, and runtime posture without inventing a formal standards authority.
Working vocabulary only. This page is not an IETF, ISO, W3C, government, or industry standards-body publication, and it does not claim universal wire-protocol compatibility.
Replay checkpoint
A replay checkpoint is a named point in a run where the runtime state can be inspected later. It can mark a tool call, approval boundary, retry, handoff, or recovery step. The checkpoint does not need to store every payload; it should preserve enough context to reconstruct what the system believed was happening at that moment.
Trust delta
A trust delta is the visible change between expected and observed posture. It can describe a shift in policy fit, continuity, authority, or review confidence. The useful part is the explanation of what changed, not a claim of mathematical certainty.
Continuity score (illustrative)
A continuity score is an illustrative summary of how much replay context survived a run or handoff. It may consider lineage, checkpoint coverage, posture clarity, and recovery context. In these public pages, the score is example vocabulary only and not a live production metric.
Lineage event
A lineage event connects a runtime action to the context before and after it. It should help a reviewer understand what triggered a step, what it influenced, and where ownership or authority moved next. Lineage events make reconstruction possible when the original session is gone.
GhostLog entry
A GhostLog entry is Recon's receipt-style framing for replay-safe evidence. It can include references to intent, tool use, hashes, checkpoints, trust deltas, and reviewer-facing notes. The entry is designed for inspection and continuity, not as a substitute for raw observability or legal audit records.
Replay continuity
Replay continuity is the ability to carry enough ordered context through a workflow that the run can be reconstructed later. It matters across retries, tool calls, approvals, agent handoffs, and recovery paths. Continuity can degrade even when each individual step technically succeeds.
Runtime posture
Runtime posture is the current operational stance of the system relative to policy, authority, continuity, and review readiness. A posture label should help operators decide whether to inspect, escalate, retry, or continue. It is not a universal safety grade or regulatory certification.