Spanda

Readiness Trend Analysis

Status: Experimental · Phase: Operate · Priority: P2.2

Predict readiness degradation from historical evaluations stored locally.

Types

• ReadinessHistory — time-series of readiness snapshots
• ReadinessTrend — slope and volatility per factor
• ReadinessForecast — predicted score and risk window

Storage

Local history file: .spanda/readiness-history.json (append on each spanda readiness --record).

Override path with --history <path> on record and trends commands.

CLI

spanda readiness examples/showcase/readiness/rover.sd --record
spanda readiness trends examples/showcase/readiness/rover.sd
spanda readiness trends rover.sd --forecast 7d --json
spanda readiness trends rover.sd --history .spanda/readiness-history.json

Output

• Overall and per-factor slope (score change per day)
• Volatility across recorded samples
• Forecasted score at horizon with policy risk warnings

Integration

Extends spanda-readiness engine; feeds scorecard and deployment gate trend signals.

Smoke: scripts/readiness_trends_smoke.sh

See readiness.md · platform-maturity-roadmap.md.

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