genpage-entity-builder

genpage-entity-builder is an agent for Claude Code from microsoft/power-platform-skills. It costs 122 tokens per session (5,212 once invoked), scanned A, original, MIT.

An agent that creates Dataverse tables, columns, relationships, choices, and optional sample data from an approved plan. Dataverse is Microsoft's cloud data platform used by Power Apps.

In plain words
What is it for?
It is for setting up the entities and sample records that Power Apps pages need, including solution membership.
Why use it?
It removes the repetitive and dependency-sensitive work of provisioning the data model behind a generative page.

Agent for Claude Code ✓ vendor

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents; names the AskUserQuestion tool; mentions Claude Code.

Part of the model-apps plugin — 2 skills, 6 agents shipped together

Good fit It is for setting up the entities and sample records that Power Apps pages need, including solution membership.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/microsoft/power-platform-skills/genpage-entity-builder
About the project

microsoft/power-platform-skills is a plugin marketplace containing reusable skills, agents, and commands for developing with Microsoft Power Platform. Developers use it to build and deploy Power Pages sites, model-driven Power Apps, and related solutions through Claude Code or GitHub Copilot. The catalogue entries are the marketplace's included skills, agents, plugins, and other agent components.

microsoft/power-platform-skills · 1,035 stars · on GitHub · aka.ms

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/microsoft/power-platform-skills

Made for: Claude Code.

Or install model-apps, the plugin that ships this one along with the rest of its 2 skills, 6 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for genpage-entity-builder

README.md
[![agentmods](https://agentmods.dev/badge/agents/microsoft/power-platform-skills/genpage-entity-builder/github.svg)](https://agentmods.dev/agents/microsoft/power-platform-skills/genpage-entity-builder)
Your own site
<a href="https://agentmods.dev/agents/microsoft/power-platform-skills/genpage-entity-builder"><img src="https://agentmods.dev/badge/agents/microsoft/power-platform-skills/genpage-entity-builder/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for genpage-entity-builder

Your own site · 80×15
<a href="https://agentmods.dev/agents/microsoft/power-platform-skills/genpage-entity-builder"><img src="https://agentmods.dev/badge/agents/microsoft/power-platform-skills/genpage-entity-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 122 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 5,212 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00122 $0.05212
Opus 5.5 $0.00049 $0.02085
Sonnet 5.5 $0.00024 $0.01042
Haiku 4.5 $0.00012 $0.00521

Measured today against content hash 5be2258005ac, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

genpage-entity-builder scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/model-apps/agents/genpage-entity-builder.md · 593 lines

How it starts

The opening of the file, as written. The whole thing — 593 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Interaction contract — this agent is HEADLESS

You run as a Task subagent: there is no user on the other end, and AskUserQuestion / EnterPlanMode / ExitPlanMode are not in your tool list. Never claim a user answered something.

When you need a decision, stop and return a request for the orchestrator to put to the user in the main conversation loop:

{ "action": "needs_input",
  "why": "<one line: what is blocked without this>",
  "questions": [
    { "id": "<stable-id>",
      "question": "<the question, verbatim>",
      "options": [ { "label": "<short>", "description": "<what it means>" } ],
      "multiSelect": false } ] }

Return what you have already discovered alongside it so the re-invocation does not repeat the reads. Full contract: references/agent-interaction-contract.md.

Genpage Entity Builder

You are the entity creation agent for generative pages. Your job is to create Dataverse tables, columns, relationships, and choice columns as specified in the plan document, then optionally seed sample data.

You will be invoked by the /genpage skill with a prompt that includes:

  • Path to genpage-plan.md
  • The working directory (where to write logs and intermediate JSON)
  • The plugin root (${PLUGIN_ROOT}) — where the JS scripts live
  • The Dataverse environment URL (e.g. https://contoso.crm.dynamics.com)

The Solution unique name and Publisher Prefix are read directly from the plan document's ## Environment section (the planner always writes them — the default fallback is Solution: Default + Publisher Prefix: new).

The solution membership is passed via the input JSON to provision-entities.js (see Step 4). Default is a valid solution name — it lands new components in the env's built-in Default Solution.

You operate through the SDK-backed provision-entities.js CLI under ${PLUGIN_ROOT}/scripts/. There is no MCP server. There is no Python. There is no Dataverse Skills plugin dependency.


Step 1 — Read the Plan Document

Read the full file on GitHub · 593 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. today Changed · +5 lines · +49 tokens per session 5be2258005ac
  2. 1mo ago Changed · +31 lines 97824e059ec6
  3. 1mo ago First seen · 557 lines · 73 tokens per session scan A fb90b0367af0

Subscribe to this mod's changes

genpage-entity-builder is an agent published in the GitHub repository microsoft/power-platform-skills (1,035 stars, last pushed today), licensed MIT. It adds 122 tokens to every session and 5,212 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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