Spanda

Video demo script (~3 minutes)

Use the autonomous rover showcase as the visual backbone. Terminal font ≥ 14pt; split screen optional (code + terminal).


0:00 — Hook (15s)

“Spanda is an autonomous systems platform where AI output is untrusted, hardware fit is checked before deploy, and safety is mandatory — not optional.”

Show: examples/showcase/autonomous_rover/src/rover.sdsafety { }, ai_model, deploy … to RoverV1.


0:15 — Verify hardware (30s)

cd examples/showcase/autonomous_rover
spanda install
spanda verify src/rover.sd --json --target RoverV1

Narrate: memory, sensors, connectivity, task budgets — before flash or field trial.


0:45 — Simulate (30s)

spanda sim src/rover.sd --record

Point at patrol loop, stop_if, mock planner → safety.validate().


1:15 — Inject fault / health (25s)

spanda sim examples/showcase/health_monitoring/rover.sd --inject-health-faults

Narrate: Healthy → Degraded → Critical and policy reactions.


1:40 — Safety gate (25s)

spanda check examples/showcase/unsafe_ai/unsafe.sd    # fails
spanda check examples/showcase/unsafe_ai/safe.sd    # passes

Highlight diagnostic: Expected SafeAction — Found: ActionProposal — Hint: safety.validate().


2:05 — Kill switch (20s)

Briefly open examples/features/kill_switch.sd or examples/security/remote_signed_kill_switch.sd.

spanda sim examples/features/kill_switch.sd --trigger-kill-switch EmergencyStop

2:25 — Replay (25s)

spanda replay src/rover.trace
spanda replay src/rover.trace --deterministic

Narrate: incident review and regression without hardware.


2:50 — Continuity (optional, 20s)

spanda demo continuity

Narrate: ScannerAlpha fails at 72%; ScannerBeta resumes from checkpoint with assurance evidence.


3:10 — Close (10s)

“Install, verify, simulate, and replay in under fifteen minutes. Start with spanda demo rover.”

On-screen: github.com/Davalgi/Spanda · docs/getting-started.md


One-command alternatives

Segment Command
Full flagship spanda demo rover
Safety only spanda demo safety
Hardware verify spanda demo verify
Health spanda demo health
Continuity spanda demo continuity

Related: killer-demo.md · examples/showcase/README.md