Contract To Invoice
Use when extracting billing obligations from contracts, order forms, SOWs, pricing tables, or amendments and comparing them against draft or issued invoices.
Install
$ agentstack add skill-loopfour-finance-skills-contract-to-invoice ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-loopfour-finance-skills-contract-to-invoice) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Contract To Invoice
Use this skill to compare what a customer contract says should be billed against what an invoice shows.
Inputs
- Contract, order form, SOW, amendment, or pricing excerpt.
- Invoice draft or issued invoice.
- Billing period, subscription start and end dates, renewal terms, usage terms, and discounts.
- Any billing policy for proration, taxes, credits, or minimums.
Workflow
- Extract billing terms: customer, product, quantity, price, discount, term, billing frequency, start date, end date, minimums, overages, taxes, payment terms, and special conditions.
- Compare extracted terms to invoice lines.
- Recalculate invoice expectations where enough data exists.
- Classify exceptions:
- Missing line.
- Extra line.
- Incorrect quantity.
- Incorrect rate.
- Incorrect billing period.
- Missing discount or credit.
- Tax or payment-term mismatch.
- Ambiguous contract language.
- Identify whether each exception is customer-facing, accounting-only, or requires legal or sales review.
Output
Return:
- Contract billing summary.
- Invoice comparison table with expected value, invoice value, variance, source reference, and confidence.
- Exception list with severity and owner.
- Questions for sales, legal, billing, or the customer.
Guardrails
- Quote short source snippets only when needed and keep them minimal.
- Do not interpret ambiguous legal terms as final. Escalate ambiguity.
- Do not approve an invoice for sending when material terms are missing.
- Preserve source references so reviewers can verify every variance.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: loopfour
- Source: loopfour/finance-skills
- License: MIT
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.