The short answer
Astra drafts your investor update by pulling the real metrics, structuring them into your usual format, and writing in the voice you've established. She fetches the last 7 days from Stripe (MRR, customers, churn), PostHog (signups, activation), GA4 (traffic, top channels), Salesforce (pipeline, closed-won), and Linear (shipped features, in-flight issues), reads your last 3 investor updates from your sent mail to learn the format and tone, then drafts a new one with: this week's wins (3-5), lowlights (1-2, honest), key metrics with WoW deltas, what's shipping next week, and asks for the investor base (intros, hires, advice). She queues it in Lark for your edit pass — usually 5 min — then sends to your investor mailing list. Most founders move from "I haven't written one in 6 weeks" to "shipped every Friday at 4pm."