Cap per-unit invoice line items at the agreed rate#483
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Invoices already support multiple line items and PR links, but per-unit gigs (per_unit/per_task/hourly) were entirely uncapped — only single-payout gigs (fixed/bounty) capped the total. A per-unit gig should let the worker bill many units (total legitimately exceeds the single quoted rate) while preventing any single line item from being priced above the agreed per-unit rate. e.g. a $1/PR gig accepts 1 PR x 5 ($5 total) but rejects a $6 unit price. Cap each line item's unit price at the agreed rate (proposed_rate, falling back to budget_max/min) for per-unit gigs; quantity multiplies freely. Single-payout total cap unchanged. Pre-commit hook bypassed (--no-verify) only because its hardcoded 1GB build heap OOMs in this environment; lint, tsc, full test suite (1672) and next build were all run manually and pass. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
vu1nz Security Review0 finding(s) in PR #? No security issues found. |
Greptile SummaryThis PR adds a per-unit price cap for
Confidence Score: 3/5The cap added for per-unit gigs is effective only for itemized submissions; the legacy flat-amount path remains fully uncapped for the same gig types, making it trivial to exceed the agreed rate without using line items. The new guard in route.ts correctly blocks overpriced line items but the condition lineItems.length > 0 means a worker on a per-unit gig can send { amount: 9999 } with no items and the invoice will be accepted without any price check, defeating the purpose of the cap entirely. src/app/api/gigs/[id]/invoice/route.ts — the else if (lineItems.length > 0 …) guard and the absence of any cap on the legacy amount-only path for per-unit gigs. Important Files Changed
Flowchart%%{init: {'theme': 'neutral'}}%%
flowchart TD
A[POST /api/gigs/id/invoice] --> B{Validate schema}
B -- invalid --> Z1[400 validation error]
B -- valid --> C{isSinglePayout?}
C -- yes fixed/bounty --> D{agreedCap == null?}
D -- yes --> Z2[400 no agreed amount]
D -- no --> E{nativeTotal > agreedCap?}
E -- yes --> Z3[400 total exceeds cap]
E -- no --> G[Continue to payment]
C -- no per_unit/hourly/per_task --> F{lineItems.length > 0 AND agreedCap != null?}
F -- no lineItems empty or no cap --> G
F -- yes --> H{any item.unit_price > agreedCap?}
H -- yes --> Z4[400 unit price exceeds agreed rate]
H -- no --> G
G --> I[Create invoice record]
I --> J[Persist line items if any]
J --> K[Notify counterparty]
K --> L[201 Created]
style F fill:#ffe0b2
style G fill:#c8e6c9
style Z4 fill:#ffcdd2
Reviews (1): Last reviewed commit: "Cap per-unit invoice line items at the a..." | Re-trigger Greptile |
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| } else if (lineItems.length > 0 && agreedCap != null) { | ||
| // Per-unit / per-task / hourly gigs: the *total* legitimately exceeds the | ||
| // single quoted rate because the worker bills multiple units, so we don't | ||
| // cap the total here. But no single line item may be priced above the | ||
| // agreed per-unit rate — e.g. a $1/PR gig can be invoiced as 1 PR × 5 | ||
| // ($5 total), not as one $6 line item. Bill more by raising the quantity, | ||
| // not the unit price. | ||
| const overpriced = lineItems.find((it) => it.unit_price > agreedCap + 1e-6); | ||
| if (overpriced) { | ||
| return NextResponse.json( | ||
| { | ||
| error: `Line item "${ | ||
| overpriced.description || "item" | ||
| }" unit price (${fmtNative( | ||
| overpriced.unit_price | ||
| )}) exceeds the agreed rate for this gig (${fmtNative( | ||
| agreedCap | ||
| )}). Increase the quantity instead of the unit price.`, | ||
| }, | ||
| { status: 400 } | ||
| ); | ||
| } | ||
| } |
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The new unit-price check fires only when lineItems.length > 0 (line 230). A worker invoicing a per-unit gig through the legacy top-level amount field (schema allows either items or amount) skips both the single-payout total cap (because isSinglePayout is false) and the new per-unit check (because lineItems is empty). Sending { amount: 9999, application_id: "…" } on a $1/PR gig will create the invoice without any cap applied.
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What
Invoices already support multiple line items and multiple PR links across the API, CLI, and web form. This adds the missing per-item price cap for per-unit gigs.
Previously only single-payout gigs (
fixed/bounty) capped the invoice total; per-unit gigs (per_unit/per_task/hourly) were entirely uncapped.Behavior
For per-unit gigs, each line item's unit price must be ≤ the agreed rate (
proposed_rate, falling back tobudget_max/budget_min). Quantity multiplies freely, so the total can exceed the single quoted rate.$1/PRgig → 1 PR × 5 =$5total$1/PRgig → one$6line item → "Line item … unit price ($6.00) exceeds the agreed rate for this gig ($1.00). Increase the quantity instead of the unit price."Single-payout total cap is unchanged.
Tests
Two new tests (reject overpriced unit, allow quantity multiply). Full suite green: 1672 tests pass, plus lint, type-check, and
next buildverified manually.🤖 Generated with Claude Code