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08

One last safety pass

Right before sending the feed back to you, one more check: anything that was deleted, marked spam, violent, gore, etc. is dropped. Conversation threads get collapsed so you don’t see five branches of the same argument.

The expediter takes one last look at the plate before it leaves the kitchen.

Under the hood: Post-selection filters — same idea as step 5, but applied after ranking, on the small final set. home-mixer/filters/

A little deeper

Two passes of filtering exist for a reason. Pre-scoring filters are cheap and drop obvious junk before ML. Post-selection filters catch issues that depend on the final picked set — for example, deduplicating conversation branches.

Visibility checks also run here: a post that was deleted or marked as violating policy between retrieval and now is dropped before reaching you.

View on GitHubMade by Henrique Martins