{"id":"iso-date-week-bounds","version":"1.0.0","description":"Return the Monday and Sunday of the ISO-8601 week that contains a calendar date.","supported_operations":["iso date week bounds","monday and sunday of an iso week","iso week start and end dates"],"unsupported_operations":["locale week numbers","Sunday-first weeks","month start and end","timezones","datetime input","fiscal weeks"],"semantics":["Input date is a strict YYYY-MM-DD proleptic Gregorian UTC calendar date with year 0001-9999.","ISO weeks start on Monday and end on Sunday.","start is that week’s Monday and end is that week’s Sunday, each as YYYY-MM-DD.","Both start and end must stay in years 0001-9999; otherwise the call is rejected."],"limits":{"year_min":1,"year_max":9999,"date_length":10},"pricing":{"status":"unpriced","charge_usd":null},"input_schema":{"type":"object","additionalProperties":false,"required":["date"],"properties":{"date":{"type":"string","minLength":10,"maxLength":10,"pattern":"^\\d{4}-\\d{2}-\\d{2}$"}}},"output_schema":{"type":"object","additionalProperties":false,"required":["start","end"],"properties":{"start":{"type":"string","minLength":10,"maxLength":10,"pattern":"^\\d{4}-\\d{2}-\\d{2}$"},"end":{"type":"string","minLength":10,"maxLength":10,"pattern":"^\\d{4}-\\d{2}-\\d{2}$"}}},"examples":[{"input":{"date":"2026-01-08"},"output":{"start":"2026-01-05","end":"2026-01-11"}}],"execute_url":"/v1/tools/iso-date-week-bounds/versions/1.0.0/execute"}