I gave Claude my inbox and calendar. the brittle automation problem just disappeared
disclosure up front: I work on Slashy and there's a link at the end. the automation breakdown is the actual point, judge it on that.
for about a year my email/calendar "automation" was the usual pile: a few zaps, a couple of cron scripts, some keyword rules. it worked until anything needed judgment. is this email actually urgent. who is this person. does this meeting request collide with something. every time I tried to automate one of those I ended up hardcoding a dumb rule that broke within a week.
The realization that fixed it: I was trying to make deterministic automation do a judgment job. the fix wasn't a smarter zap, it was giving Claude the actual inbox and calendar so the judgment steps run with real context instead of a keyword guess, and leaving the genuinely deterministic parts as plain automation.
concrete, what's now reliable instead of brittle:
- morning: Claude pulls unread from a defined list of people, summarizes, drafts replies for the ones that need one, queues them for my approval. the old script could fetch mail but had no idea what mattered.
- meeting requests: it checks the actual calendar, proposes times that don't collide, writes the email. I send. the part that used to need babysitting is gone.
- before any call: it assembles who this person is + last thread + calendar into one brief automatically. killed three tabs.
the thing that makes it production-stable: it is not autonomous. it drafts and proposes, I approve anything that leaves the building. an automation that sends the wrong
Thing once is worse than no automation, especially with email where you can't unsend. the scheduled parts run on triggers, not a polling loop burning tokens. setup is OAuth, no API keys sitting in a config file, and it runs over MCP so it works inside Claude (and Cursor/whatever speaks it) rather than being one more siloed app.
The tool is Slashy if you want to look: https://slashy.com genuinely curious what everyone here uses for the judgment-heavy steps of their automations, because "deterministic automation + Claude in the right place with real context" is the pattern that finally held for me and I want to know where it breaks for others.