Checks / Agent output: data format / Updated-at is ISO-8601
Agent output: data format · ISO-8601
Updated-at is ISO-8601
This control asks you to show: Updated-at is ISO-8601. Checks that data going into or out of an AI step is in the right shape: dates, phone numbers, codes, emails.
What evidence passes
The check reads the field
updated_at in what the AI step received. It passes when that field is a date in ISO-8601 form, e.g. 2026-10-18. Anything else fails, with the reason stated.Check it now
Free, no account. You get PASS or FAIL, the reason, and a tamper-evident receipt.
Run it from your AI assistant
Connect
https://sebbi.pro/mcp to Claude, ChatGPT, Cursor or any MCP app, then call:sebbi_run_check {"check": "sebbi_normalizer_gate_035", "input_payload": {"updated_at": "..."}}Or run every Agent output: data format control at once with sebbi_run_framework. How to connect