DB

db-conceptual-modeling

A conceptual modeling workflow to define domain entities and relationships before physical schema implementation.

Install

mkdir -p .claude/skills/db-conceptual-modeling && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/11745" && unzip -o skill.zip -d .claude/skills/db-conceptual-modeling && rm skill.zip

Installs to .claude/skills/db-conceptual-modeling

Activation

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Conceptual data modeling workflow for domain entities, relationships, and lifecycle boundaries. Use when teams must align on domain meaning before logical/physical schema decisions; do not use for index-only or migration-only tasks.
232 chars✓ has a “when” trigger
Intermediate

Key capabilities

  • Model domain meaning for data
  • Define entity relationships with ownership and lifecycle semantics
  • Capture key invariants and conflict rules
  • Resolve term collisions across bounded contexts
  • Document conceptual assumptions for logical design

How it works

The skill identifies core concepts, actors, and business events, then defines entity relationships, invariants, and conflict rules. It resolves term collisions and documents conceptual assumptions to guide logical design.

Inputs & outputs

You give it
domain area, team disagreements on entity meaning
You get back
conceptual data model with defined entities, relationships, and lifecycle boundaries

When to use db-conceptual-modeling

  • Resolving ambiguity in domain entities
  • Defining business relationship semantics
  • Aligning team understanding on core data concepts

About this skill

DB Conceptual Modeling

Overview

Use this skill to model domain meaning first, so later schema decisions reflect business semantics rather than accidental implementation details.

Scope Boundaries

  • Teams disagree on entity meaning or relationship semantics.
  • A new domain area is being introduced.
  • Existing schema complexity suggests conceptual drift.

Core Judgments

  • Entity versus value concept boundaries.
  • Cardinality and ownership semantics of relationships.
  • Lifecycle states and temporal meaning.
  • Bounded-context boundaries and shared concepts.

Practitioner Heuristics

  • Model business invariants explicitly before table design.
  • Use language from domain experts, not only engineering jargon.
  • Treat temporal facts (history, validity windows) as first-class concepts.
  • Avoid polymorphic catch-all concepts that hide domain distinctions.

Workflow

  1. Identify core concepts, actors, and business events.
  2. Define entity relationships with ownership and lifecycle semantics.
  3. Capture key invariants and conflict rules.
  4. Resolve term collisions across bounded contexts.
  5. Document conceptual assumptions that drive downstream logical design.

Common Failure Modes

  • Conceptual model mirrors current tables instead of domain reality.
  • Relationship ownership is left implicit, causing write conflicts later.
  • State transitions are not modeled, forcing ad hoc status flags.

Failure Conditions

  • Stop when core terms remain ambiguous across stakeholders.
  • Stop when invariants cannot be expressed at conceptual level.
  • Escalate when bounded context boundaries are politically unresolved.

When not to use it

  • For index-only tasks
  • For migration-only tasks
  • When the conceptual model mirrors current tables instead of domain reality

Limitations

  • The skill focuses on aligning domain meaning before logical/physical schema decisions.
  • It stops when core terms remain ambiguous across stakeholders.
  • It stops when invariants cannot be expressed at the conceptual level.

How it compares

This skill prioritizes modeling domain meaning to ensure schema decisions reflect business semantics, unlike approaches that might focus directly on logical or physical schema without conceptual alignment.

Compared to similar skills

db-conceptual-modeling side by side with the closest alternatives in the catalog.

SkillInstallsUpdatedSafetyDifficulty
db-conceptual-modeling (this skill)05moNo flagsIntermediate
d365-technical-plan-designer03moNo flagsAdvanced
postgresql-table-design304moNo flagsIntermediate
agentdb-advanced-features79moReviewAdvanced

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