Instagram Feed video ad primary text: 125 characters, 30 hashtags

Meta's Instagram Feed video ad specs list primary text at 125 characters maximum and at most 30 hashtags. If you generate caption copy in a Sume bulk run, your code, not the model, should count both before anything reaches Ads Manager.

The text limits

Check generated copy

A structured-output schema keeps each result to the keys you ask for, and does not enforce length. This checker does.

import re

def problems(text: str) -> list[str]:
    out = []
    if len(text) > 125:
        out.append(f"primary text is {len(text)} characters, limit 125")
    tags = re.findall(r"#\w+", text)
    if len(tags) > 30:
        out.append(f"{len(tags)} hashtags, limit 30")
    return out

for t in ["Spring drop is live #sale", "x" * 130]:
    print(problems(t) or "ok")

Where this fits

Run the check on every item in a finished queue and resubmit only the ones that fail. Failed items keep their index in the queue receipt.