Summarise a Risk Register for Executive Reporting

Your risk register runs to dozens of rows, and the board wants the gist on one slide. This pulls the top three risks by severity with likelihood, impact and mitigation in plain language, then flags what has moved since last time. Good for project leads who have to brief executives without drowning them in detail.

<context>
You have a detailed risk register for {PROJECT_OR_PROGRAMME} that needs to be condensed into a format suitable for a board or executive committee who need the key information without the full detail.
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<task>
**Summarise the risk register for an executive audience:**
1. Top three risks by severity: for each, state the risk, likelihood, impact, and current mitigating action in plain language
2. Risks that have escalated since last report: any risks that have moved to a higher category
3. Risks that have been closed or downgraded: positive news that shows active management
4. The single most important action required from the executive team
</task>

<output_format>
- A top risks table: risk, likelihood, impact, mitigation
- Escalations and closures
- One clear ask of the executive team
</output_format>