What is daily-planner-briefing?

Daily Planner Briefing is a skill for an AI assistant platform called Sai, built by a company named Simular. It scans your Google Calendar, Gmail, and Slack each morning and turns them into a single prioritized to do list, aiming to replace a person's usual morning routine of checking three separate apps. When run, it pulls the day's calendar events along with attendees, agendas, and meeting links, scans Gmail for unread messages, action items, and email threads that have gone unanswered for several days, and checks Slack for unread direct messages, channel mentions, and threads waiting on a reply. It then sorts everything into three priority tiers: P1 items that are time sensitive or block other people, such as a meeting starting soon or an email due today, P2 items that matter but can be scheduled during the day, such as a Slack thread needing input, and P3 items that are low urgency, like newsletters or general channel chatter. For each meeting, it also generates short prep notes pulled from recent email and Slack context involving that meeting's attendees, and it suggests open time blocks between meetings for focused work. You can trigger it by asking Sai naturally, with phrases like what is on my plate today or give me my daily briefing, or set it up as a recurring workflow that runs automatically each weekday morning and delivers the result to chat. It requires Sai to already have Google Calendar and Gmail connected, plus Slack if you want that included, if Slack is not connected, the skill simply skips that section and mentions it could be set up. Under the hood, the README describes it calling the Google Calendar API for the day's events, querying Gmail for unread and starred messages plus sent mail from the past week to detect threads without replies, and scanning Slack channels for recent mentions, before cross referencing names across all three sources to build meeting prep notes and applying the priority rules described above. The skill also adjusts its behavior for edge cases, giving a lighter summary on weekends or when there are no meetings, and skipping the email section entirely if the inbox is already empty. The project is released under the MIT license.