Give an agent a public URL. The first call creates a normalized baseline. Every later call returns only added and removed lines instead of making the agent reread the whole page. Public targets and every redirect hop are screened against private/reserved network destinations.
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curl -s -X POST 'http://cibcxqrqiqvzpardbdrw.supabase.co/functions/v1/deltafeed/check' -H 'content-type: application/json' -d '{"url":"https://example.com"}'