setup-datamodel

name	setup-datamodel
description	Use when the user wants to design or redesign the Dataverse schema and connector plan for an existing mobile app, or has an ER diagram (image, Mermaid, or text) to apply. Skip when the user is creating a brand-new app — /create-mobile-app handles the data model inline.
user-invocable	true
allowed-tools	Read, Edit, Write, Grep, Glob, Bash, AskUserQuestion, EnterPlanMode, ExitPlanMode, Task, Skill
model	opus

📋 Shared instructions: shared-instructions.md — read first.

Set Up Data Model + Connectors

Combined orchestrator for standalone data source planning. Designs the Dataverse schema, plans connectors, gets approval on both, then delegates execution to /add-dataverse and /add-connector.

Use this skill when	Use /add-dataverse directly when
Standalone schema + connector design (project may or may not exist yet)	The plan already exists and you just need to apply tables + generate services
You have an existing ER diagram (image / Mermaid / text) to import	/create-mobile-app is invoking this as a sub-step with --skip-planning
Re-planning the schema or connectors mid-project	You only need to add a single table or a single connector

Workflow

1. Verify project & auth → 2. Design data model → 3. Plan connectors → 4. Combined approval → 5. Execute data model → 6. Execute connectors → 7. Summary

---

Phase 1 — Verify Project & Auth

Confirm we're inside a Power Apps mobile app:

test -f power.config.json && echo "OK" || echo "ERROR: not a mobile app — run /create-mobile-app first"
node "${CLAUDE_SKILL_DIR}/../../scripts/resolve-environment.js" "$(node -e \"console.log(require('./power.config.json').environmentId)\")"

Capture the environment URL, environment ID, tenant ID, and organization ID for Phase 5.

Phase 2 — Design Data Model

Check $ARGUMENTS for diagram hints first (*.png, *.jpg, erDiagram keyword, ||--o{ cardinality syntax). If a hint is present → Path A. If $ARGUMENTS describes the app at all → silently take Path B (architect propose). Only if both are empty, ask:

"How would you like to define the data model?"

Option	What happens
Upload an existing ER diagram	Provide a PNG/JPG path, Mermaid block, or text description
Let the Data Model Architect propose one (default)	Spawns data-model-architect agent to infer from requirements
Skip — no Dataverse tables needed	Jump to Phase 3

Default the answer to "architect propose" so an empty answer auto-proceeds without blocking the user.

Artifact storage rules for PDFs and signatures

When requirements mention signatures, sign-off, ink, drawings, generated PDFs, exported reports, evidence packets, or retained documents, make the storage target explicit in ## Data Model before approval:

User signal	Dataverse model implication
"capture signature", "sign off", "approval signature", "ink"	Image column on the signed record for one current signature, or child Evidence/Signature table for multiple captures/history
"generate PDF", "export report", "evidence packet", "certificate PDF"	Ask whether the generated PDF should be retained. If yes, use a Dataverse File column, usually on the parent record or a child Evidence/Attachment table. If no, document on-device/share-only behavior and add no column.
"upload PDF", "attach file", "import document"	File column or child Attachment table with lookup to parent
"view PDF"	Store or reference an HTTPS URL only if the app has a durable source. Native PDF viewer does not support local file://, content://, or blob: URIs.

PDF content must never be modeled as long text/base64 text. Use Dataverse File columns for retained PDFs. Signature PNGs may use Image columns when the generated service supports image payloads; use File columns or child Evidence rows when the capture should behave like an attachment.

Path A — Parse user-provided diagram

Accept PNG/JPG (use Read to view), Mermaid syntax (paste in chat), or text description. Parse into tables + columns + relationships. Query existing Dataverse tables to mark each as new / extend / reuse. Generate a Mermaid ER diagram for confirmation. Enter EnterPlanMode for data model approval. On ExitPlanMode approval, write the data model into native-app-plan.md ## Data Model section (creating the file if absent).

Path B — Spawn data-model-architect

Task: mobile-app:data-model-architect

Prompt:
  You are the data-model-architect agent for a Power Apps mobile app.
  Requirements: <$ARGUMENTS or ask the user what the app does>
  Working directory: <cwd>
  Plugin root: ${CLAUDE_SKILL_DIR}/../../

  Follow your agent file. Return a ## Data Model section with Mermaid ER diagram,
  reuse/extend/create table, and dependency-tier ordering. If requirements mention
  signatures, pen/ink, generated PDFs, report exports, evidence packets, or uploaded
  documents, include the artifact storage target: on-device/share-only, Dataverse
  Image column, Dataverse File column, or child Evidence/Attachment table. Retained
  PDF content must use a File column, not long text/base64.

Present the returned section via EnterPlanMode / ExitPlanMode for approval.

Path C — No Dataverse

Write ## Data Model as "None — no Dataverse tables needed." Continue to Phase 3.

Phase 3 — Plan Connectors

Follow shared/references/connector-planning.md:

1. Infer — if $ARGUMENTS describes what the app does, scan for connector keywords. Build a candidate list.
2. Confirm — present via AskUserQuestion. Let the user add, remove, or confirm.
3. Record — build the ## Connectors section.

If the user provided no requirements context, ask:

"What does your app need to connect to? (e.g. SharePoint, Teams, email, Excel, OneDrive, Azure DevOps — or none)"

Phase 4 — Combined Approval

Present the full plan — data model + connectors — together in a single EnterPlanMode block:

## Plan: Data Sources

### Data Model
[reuse/extend/create table]
[Mermaid ER diagram]
[creation order tiers]

### Connectors
[connector table or "None"]

Approve both to proceed with execution?

• Approved → proceed to Phase 5
• Change data model → loop back to Phase 2 for that section only, then re-present Phase 4
• Change connectors → loop back to Phase 3, then re-present Phase 4

Phase 5 — Execute Data Model

Invoke /add-dataverse with --skip-planning so it reads the approved plan directly without re-prompting:

Invoke skill: /add-dataverse

Arguments:
  --working-dir <cwd>
  --plan-section native-app-plan.md#data-model
  --skip-planning

/add-dataverse creates tables in tier order, runs npx power-apps add-data-source --api-id dataverse --org-url <envUrl> --resource-name <name> per table from the app root, publishes customizations, writes .datamodel-manifest.json, and type-checks. Wait for it to return before Phase 6.

Calculated columns from the screen plan — if ## Data Model in the plan includes a ### Cross-entity Reads (auto-derived from screen plan) subsection (the data-model-architect's Step 6a addendum, approved at the Gate 1 addendum during planning), /add-dataverse Step 5c creates each row as a calculated column on the parent table via scripts/create-calculated-column.js. No additional action needed in this skill — /add-dataverse handles it. If the subsection is absent, Step 5c is silently skipped. See shared/references/data-performance.md § Cross-entity Reads for why this matters.

Skip if Phase 2 chose Path C (no Dataverse).

Phase 6 — Execute Connectors

Read ## Connectors from native-app-plan.md. For each connector row, invoke /add-connector:

Invoke skill: /add-connector

Arguments:
  --working-dir <cwd>
  --connector <api-name>

Run sequentially. Skip if ## Connectors is "None".

Phase 7 — Summary

✅ Data sources set up
─────────────────────────────────────────────
Data model:
  Tables reused  : <list>
  Tables extended: <list>
  Tables created : <list>
  Manifest       : .datamodel-manifest.json

Connectors:
  <list of added connectors, or "None">

Generated services:
  src/generated/services/ × <N>
  src/generated/models/   × <N>

Type-check: PASS

Next steps:
  /add-datasource   — add more data sources
  /add-native       — add device capabilities
  screen-builder    — implement screens using the generated services
─────────────────────────────────────────────

Reference

• shared/references/connector-planning.md — connector inference + confirmation logic
• skills/add-dataverse/SKILL.md — full data model execution workflow
• agents/data-model-architect.md — read-only architect agent