Weather Forecast

Interpret supplied weather evidence, then let the deterministic finalizer bind the result to that evidence.

This skill is read-only. It does not fetch forecasts, send alerts, change schedules, or mutate provider state. Use nws-weather-forecast, open-meteo-weather-forecast, or another provider skill to obtain evidence first.

Procedure

1. Identify the requested location, horizon, purpose, and freshness requirement.
2. Read only forecast_evidence. Do not add provider references, timestamps, or forecast periods that are absent from it.
3. Assess whether the evidence is fresh and complete enough for the stated purpose. Return needs_more_evidence when it is stale, ambiguous, unsupported, or too thin.
4. Summarize relevant periods, uncertainty, hazards, and planning implications without claiming a downstream action occurred.
5. Return refused for emergency, evacuation, aviation, maritime, medical, or other life-safety use.

The finalizer enforces the requested location and horizon, context-only authority, provider identity, provenance references, generation timestamp, and period-name fidelity. A draft that invents any of those fails instead of sealing a forecast packet.

Output

decision: ready | needs_input | needs_more_evidence | refused
location: string
horizon: string
forecast_packet:
  summary: string
  periods: array
  hazards: array
  confidence: string
  generated_at: string
provider_evidence:
  provider: string
  source_refs: array
  receipt_refs: array
safety_notes: array
stop_conditions: array
receipt_notes:
  authority: context-only
  mutation: false

For ready, the supplied evidence must include provider, generated_at, periods, and at least one source_ref or receipt_ref. Missing forecast_evidence stops before agent interpretation. A missing optional horizon remains an empty string; the agent must not invent one.

Agent task contracts

weather-forecast-interpret

Interpret only the supplied forecast evidence and return forecast_draft using the documented output fields. Preserve the requested location and horizon, provider, generated_at, source_refs, receipt_refs, and relevant period names. Summaries, hazards, uncertainty, and stop conditions require analyst judgment, but do not invent evidence. Return needs_more_evidence when freshness or coverage is insufficient. Return refused for life-safety use.