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Polymorphic Line Items

Agent skill
1 skill

Design and implement polymorphic line items in a sales/quoting system — single parent (Quotation/Invoice) with mixed child item types (Product vs Service with different field shapes). Use when a quotation/invoice/order can have line items of more than one domain type (e.g. physical products + consultancy services), or when item fields don't fit a flat single-table model. Covers Option A (separate tables + discriminator + dual FK), STI trade-offs, snapshot pricing for accounting immutability, and Prisma enum/JSON write casts. Pairs with crm-data-model and backend-rbac-audit-log.

Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI

Supported by the Atlas install prompt. Skill-specific requirements vary.

Skill stats

Skills1CategorySalesStars0

About this skill

Design and implement polymorphic line items in a sales/quoting system — single parent (Quotation/Invoice) with mixed child item types (Product vs Service with different field shapes). Use when a quotation/invoice/order can have line items of more than one domain type (e.g. physical products + consultancy services), or when item fields don't fit a flat single-table model. Covers Option A (separate tables + discriminator + dual FK), STI trade-offs, snapshot pricing for accounting immutability, and Prisma enum/JSON write casts. Pairs with crm-data-model and backend-rbac-audit-log.

Quick start

  1. Copy the install prompt. Use the green button above this README.
  2. Send it to your agent. Paste it into your coding agent’s chat and send.
  3. Review the setup. Your agent checks the skill’s instructions, requirements, and installation scope.
Review, license & listing details
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This is an imported listing. We haven’t certified its safety, license, or compatibility. Skills may include executable scripts.

Automated security scan: Partial

Only SKILL.md was scanned. Supporting files and scripts were not checked. No safety grade has been assigned.

0 potential findings · Scanned 11/4/2026 · Scanner 0.2.1

Content SHA-256: 0d4dd55bfe8d581eb9622693b8d0d997776745acbd9af9bb1d67fca62ea8deca

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About this listing

Category
Sales
Reported license
Not specified
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
Polymorphic Line Items | Agent Skills Atlas