What it does

Copilot works across your document estate: summarising and answering questions over files in SharePoint and OneDrive, and over video via Stream (transcripts and recaps). You can also build scoped SharePoint agents grounded on specific sites or libraries.

Key facts

• OneDrive and SharePoint Copilot summarise and compare documents and answer questions across a set of files.
• Stream Copilot works from a video's transcript to give summaries and answer "what did they say about X".
• SharePoint agents can be scoped to chosen sites, libraries or files as a grounded knowledge source.
• Everything runs inside existing permissions — Copilot never exceeds what the user can open.

When to use / skip

Use document Copilot for making sense of large libraries and long files fast, and SharePoint agents to give a team a focused assistant over their own content. Skip Stream Copilot on videos with no transcript — there's nothing to read.

Configuration decisions

• Site and library permission hygiene, since this is where oversharing bites hardest.
• Who can create SharePoint agents and over which content.
• Stream transcription and retention settings.

Gotchas

• SharePoint is the epicentre of the oversharing risk. Copilot makes over-permissioned content trivially discoverable.
• Restricted SharePoint Search and site-access reviews exist precisely to contain this — use them before rollout.
• Stream Copilot inherits transcript errors; accented or noisy audio degrades the summary.

Consultant notes

• The pre-rollout access review is non-negotiable here. This is where a careless Copilot launch turns into an HR or data-leak incident.
• SharePoint agents are a tidy way to deliver targeted value quickly — a well-scoped agent over one team's site demos brilliantly.
• Governance of who can spin up agents matters; without it you get a sprawl of unmanaged assistants over sensitive content.

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*Worth revisiting after th