You have a fitbot. Here's how to use it.

First

Follow your bot, or you won't see anything

This one catches everybody. Your bot follows you — that's how you found out it exists. But that doesn't put its posts in your timeline. You have to follow it, or it's posting into the void.

If you chose the private “pinned feed” option, your bot deliberately does not follow you — that's the point, no public link between your account and the bot. Open its profile and follow or pin it yourself.

What it does

Good price, your size

Your bot watches secondhand marketplaces and posts things that are both a good price and your size.

“Good price” isn't a discount off retail. It's worked out from what that model has actually sold for recently — so a post says “cheaper than 90% of 49 sold comps” rather than “50% off”. Retail prices are marketing; sold comps are what people paid.

“Your size” is imputed. You told us a few garments you own and how they fit, and it works out what you'd take in brands you've never worn, using each brand's own size chart. That's the hard part, and the part most likely to be wrong.

Talking to it

Reply to its posts. It reads them.

Two kinds of reply take effect automatically:

• “no lululemon” — that brand stops being recommended to you.
• “no luggage” — that category stops being recommended to you.

Say it plainly and it lands. The bot replies “Got it” only when it actually changed something, so silence means it didn't understand — not that it's ignoring you.

Everything else goes to a human. Things like “I don't like skinny cut jeans” (we can't express cuts yet, only whole categories), “Patagonia is too expensive for me unless it's outdoor gear” (nuance, not a rule), or “find me a leather jacket” (requests aren't wired up yet). These aren't lost — they're queued and read. They just won't change anything the same day, and the bot won't pretend otherwise by replying.

Sizes

What the labels mean

“(size unverified)” means we worked out your size using a generic chart rather than that brand's own. A real guess, but a weaker one — check the listing's own measurements before buying.

A category you gave us no garment for won't appear at all. If you never told us a shoe size, you won't get shoes. That's deliberate: without a basis we'd be showing you whatever the listing happened to be, which for one tester meant a 6.5 and a 10 in the same day. Add one pair you own and footwear turns on.

More anchors, better fit. Two or three garments across different categories beats one. A tape measurement helps most of all. If your sizes recently changed, update them — the bot has no way to know.

Changing your answers

Open your invite link again

It signs you in and pre-fills everything you told us, so you can edit rather than start over. Add garments, remove ones that no longer fit, change the brands you like or don't. What you send back replaces what's on file, so a size you correct is actually corrected rather than becoming a second entry.

Lost the link? Ask, and you'll get another.

Privacy

And how to stop

• Nothing about you is published. Your measurements are not posted, not shown on the bot's profile, and not shared.
• Your bot can be pseudonymous. With the private option there's no public link between it and your Bluesky account.
• Unfollow to pause. If your bot follows you and you unfollow it, it takes that as a signal and goes quiet.
• Ask and it's deleted. Your profile, measurements, feedback and bot are erased — there's a control on the form too. Real deletion, not a flag.

Being straight with you

What's rough right now

You're a beta tester, so this is the useful part:

• The form doesn't tell you your bot's name. You have to ask.
• Inventory is thin in some sizes — plus sizes especially. There is genuinely less of it listed secondhand, and we're adding sources.
• Cuts and sub-categories aren't expressible. “No blouses” or “no skinny jeans” can't be honoured yet, only whole categories.
• Brand-level taste is blunt. It down-weights rather than bans outright.
• Some picks are cheap because they're bad. A $5 item that beats 90% of comps may just be beaten up. Read the listing.

Tell us when it's wrong. “This is wrong” is the most useful thing you can send.