Spanda

Mission Time Travel

Status: Stable · Horizon: LATER (v0.7) · Priority: P2

Replay mission state at any point in time for incident investigation.

CLI

spanda replay examples/showcase/differentiation/decision_trail/main.trace --at T+00:01 --inspect decisions
spanda replay mission.trace --at 2026-06-24T14:32:00Z
spanda replay mission.trace --at T+01:30 --inspect health|readiness|safety|all --json

Golden fixture: examples/showcase/differentiation/decision_trail/main.trace.

Core types

MissionTimeTravel, HistoricalMissionState, TimelineExplorer.

Capabilities

• Inspect robot/mission state at timestamp
• Inspect decisions (requires Decision Audit Trail v3 traces)
• Inspect health, readiness, and safety posture at point in time

Extends replay.md with state snapshots and decision records embedded in trace v3.

See differentiation-roadmap.md · decision-audit-trail.md.

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