Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add coltonbearden/carrel --skill accounting-inboxgit clone --depth 1 https://github.com/coltonbearden/carrelWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/coltonbearden/carrel/accounting-inbox)<a href="https://agentmods.dev/skills/coltonbearden/carrel/accounting-inbox"><img src="https://agentmods.dev/badge/skills/coltonbearden/carrel/accounting-inbox/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/coltonbearden/carrel/accounting-inbox"><img src="https://agentmods.dev/badge/skills/coltonbearden/carrel/accounting-inbox.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00086 | $0.00994 |
| Opus 5 | $0.00043 | $0.00497 |
| Sonnet 5 | $0.00017 | $0.00199 |
| Haiku 4.5 | $0.00009 | $0.00099 |
Grade A, and why
accounting-inbox scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.
The accounting inbox with carrel
Five commands do the whole job: fields reads a document, refs links documents that share a number, rename names them, intake files them, and meta/search/tag answer questions afterwards. Everything is dry-run first; run carrel doctor once to see what your environment can read.
1. Read one document before trusting the batch
carrel --json fields invoice.pdf # vendor, invoice_no, po, date, due, subtotal, tax, total, currency, iban
carrel --json fields receipts/ --profile receipt --date-order dmy --ocr
Each field carries a confidence: high (it followed its label — Total Due, Invoice Date), medium (a heuristic: the largest amount, the first date, Net 30 → due date, the first name-like line as vendor), low (a fallback: the file's mtime or name). Fix a wrong one with --set vendor="Acme Corp" for that run. Only high/medium/user values are ever written to the desk.
2. Link the documents that belong together
carrel --json refs ~/accounting --link # values that appear in more than one file
carrel --root ~/accounting refs ~/accounting --tag
carrel --root ~/accounting tag find ref:invoice:inv-2026-0042
Kinds: label-driven invoice, po, order, check, account, tracking, ticket, plus check-digit-verified iban, routing, ein, vat, isbn, gtin, doi, ups, usps. A value with a check digit only appears when the digit verifies, so a nine-digit number is a routing number only when it really is one. Add a house format with --pattern acme='ACME-(?P<v1>\d+)'.
3. Name and file
carrel rename ~/inbox/*.pdf --template '{date}_{vendor}_{ref}{ext}' # dry-run
carrel intake ~/inbox --to ~/accounting # dry-run: the whole pipeline
carrel intake ~/inbox --to ~/accounting --apply --by period --fiscal-start 7 # FY2027/Q1/...
intake per file: fields → refs → name → move into YYYY/MM (or FY<year>/Q<n>) → index → save fields → tag. Scans are OCRed into a searchable copy and the original is kept under _originals/. Nothing is overwritten; nothing is deleted. --watch --stable 5 keeps filing what arrives, waiting for slow scanners to finish writing.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- today First seen · 57 lines · 86 tokens per session scan A d32b207bd4c6
accounting-inbox is a skill published in the GitHub repository coltonbearden/carrel (1 stars, last pushed yesterday), licensed MIT. It adds 86 tokens to every session and 994 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-11.
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