Where do you draw the line between full automation and a mandatory confirm step

Design question, wondering how people here actually landed on it in live systems.

One venue I trade through puts an assistant layer in front of order entry. You describe the order in plain language, it assembles the order and drops live prices into the same view and nothing reaches the book until you hit confirm. Works well enough when I'm clicking by hand. The moment you try to wrap automation around it though, that confirm turns into a blocking step your whole loop has to wait on, and you're forced to decide how much of the pipeline actually runs without you watching.

Here's the bind. Take the human out and you lose the latency, which is the whole point on anything fast moving but you also lose the one place a malformed or fat-fingered size gets caught before it's real. Leave the confirm in and it's the reverse a logic bug can't nuke you because you eyeball the order first, except it costs you seconds every time and quietly turns into a reflex.

Click through a couple hundred of them and you've stopped reading the order at all, so the protection is basically gone while the delay stays exactly where it was.

Two half-measures I've chewed onneither one clean:

• Conditional confirm. Auto-fire anything inside pre-checked limits (size, price deviation, symbol whitelist), only kick it to a human when it lands outside them. Normal flow stays quick. Catch is the outside the limit orders are the ones going off in exactly the chaotic moments you're worst at judging them.
• All-code validation. Bin the human, reject anything out of bounds in software, nobody in the loop. Deterministic and quick but then a broken bound just passes clean through and no one's there to notice.

The part I genuinely can't settle is whether a confirm gate is worth anything once it's pure muscle memory or whether it's just for show and the grown-up answer is a hard validation layer and no human anywhere near the hot path.

Anyone running live automated books, did you keep a human on any order route and which ones exactly or hand it all to the validation layer and never look back?