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Bill audit: compare this bill to the last one, then draft the ask

Receipts, renewals, and prior bills live in different places — so price changes slip past.

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What hurt

kocer (@kocer_eth) shared an everyday bill-audit adaptation inspired by Harper’s Grok Bot work: feed the current bill, previous bill, and pricing terms (after scrubbing account numbers), get a review sheet with discrepancies vs needs-checking, and draft inquiries you still approve. Author-quoted prompt. Not affiliated with xAI or Harper.

What to install or create

Scrub → compare current vs prior vs terms → separate confirmed vs needs-check → draft inquiry, never send.

Bots

  • No new bot. Follow the first-run steps.

Plugins

  • None on day one. Follow the first-run steps.

Routines

  • None on the first run. Watch one manual pass first.

The prompt

Billing review sheet (author-quoted)

Quoted from @kocer_eth — as published. Do not invent a second system prompt.

Last line is our approval fence: Never send, post, spend, or buy without my explicit yes.

compare these documents and create a billing review sheet.

flag possible duplicate charges, price increases, expiring discounts, and upcoming renewals.
check whether the billed amounts match the terms provided.
ask for missing documents instead of guessing.

for each finding, show:
› the amount and billing date
› the exact supporting document
› what changed or doesn't match
› the question i should ask the provider

separate confirmed discrepancies from items that still need checking.
draft a short inquiry for each confirmed discrepancy. do not send it.
do not cancel anything, change plans, or make payments without my approval.

Never send, post, spend, or buy without my explicit yes.

First run

  1. 1Read https://x.com/kocer_eth/status/2106148213451325588 (credit @kocer_eth).
  2. 2Pick one provider. Gather current bill, previous bill, and pricing terms; remove account numbers and payment details first.
  3. 3Paste the author-quoted prompt from that post into Grok Bot with the three documents attached.
  4. 4Review the sheet: confirmed discrepancies vs items still needing checks — verify before you trust any flag.
  5. 5Edit and send any drafted inquiry yourself; never let the bot cancel, change plans, or pay.

Approval fence

Do not send, cancel, change plans, or pay from the bot. Verify every flagged charge yourself.

What to tweak

Steal the compare-and-draft sheet. Evidence first; send stays human.

Source

kocer @kocer_eth · Original post

Not affiliated with xAI. We did not write this prompt. Third-party template terms still apply.

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