Agency social control room for all your Buffer clients

Build me an app my agency team opens every morning to run social for all of our clients in one place, instead of switching Buffer organizations one at a time. Our Buffer API key has access to every organization and channel on the authenticated account with no per organization scoping, and you target a specific one by passing organizationId in the query. That is what makes a single cross client control room possible, so build the whole app as a rollup over that one connection.

The app opens on a client grid. Read the linked organizations off Get Account, then fan out per organizationId: List Channels for that organization, List Posts filtered to scheduled status over the next seven days, and Get Daily Posting Limits for today across that organization's channels. Each client organization gets one card showing its name, the channels connected to it with their service and handle, how many posts are queued for the next seven days, any channel that is disconnected, and any channel that has already hit its cap for the day.

On each card also show a coverage gap count for the coming week: for each connected channel, count the weekdays in the next seven days that have no scheduled post. Sort the grid so clients with coverage gaps and capped channels come first, since those are the two things I am actually scanning for, then break ties by the emptiest queue. Show disconnected channels as a hard warning badge. Give me a refresh control, and cache the fan out for a few minutes so a page load does not blow through Buffer's limit of sixty requests per minute.

Clicking a client opens a week board for that organization: one row per channel, one column per day across a seven day window, with controls to step to the previous or next week. Fill every cell from List Posts scoped to that organizationId, those channel ids and that date range, showing each post's scheduled time and a truncated preview of its text. Flag any weekday cell with no scheduled post as a coverage gap so the empty days are obvious at a glance. Mark channel rows that are disconnected, and mark cells for today where Get Daily Posting Limits says the channel has reached its limit, so I do not try to schedule into a day that is already full.

From a gap cell I can write and schedule a post with Create Post, using custom scheduled mode at a time I pick on that day for that channel. Clicking any existing post opens full detail from Get Post, including its text, assets, status, tags and notes. I can remove a post that is wrong with Delete Post. Buffer has no update post operation, so a reschedule has to be Delete Post followed by Create Post at the new time, and the app should say that plainly before it does it.

A "Send plan for approval" button on the week board posts that week's schedule to the client's Slack channel using the Slack Bot Send a Message operation. Format the message as the client name, the week's date range, and a per day list of what is going out on which channel at what time, with the coverage gaps called out at the bottom so the client can see the empty days too. Let me choose which Slack channel belongs to which client using a picker backed by the Slack Bot List Channels operation, and save that mapping per client organization so I only pick it once.

Remember per user which client I last had open, and land me back on that client's week board when I return, with an obvious way back to the grid. The Slack channel mapping per client is shared across the team, but the last opened client is per user.

Important constraint: our Buffer connection exposes no analytics or engagement operations, so do not build or promise reach, impressions, or performance anywhere in this app. Health here means queue depth, coverage gaps, disconnected channels, and daily posting limits. List Posts uses Relay style cursor pagination, so page through with first and after until hasNextPage is false when a client has a busy week.