Power Pages Expert

A guide for Microsoft Power Pages, a tool for building websites and customer portals connected to business data. It covers portal design, security, Dataverse data access, authentication, and single-page applications.

In plain words
What is it for?
Use it to plan or build Power Pages portals, connect them to Dataverse, add custom JavaScript or styles, manage user access, and move changes between environments.
Why use it?
It helps developers make portal decisions without piecing together separate guidance on design, data access, identity, security, and deployment.

Agent

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.

agentmods
npx agentmods add agents/calsora/power-platform-github-copilot-kit/power-pages-expert
Clone the repo
git clone --depth 1 https://github.com/calsora/power-platform-github-copilot-kit
Per session 24 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 980 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00024 $0.00980
Opus 5 $0.00012 $0.00490
Sonnet 5 $0.00005 $0.00196
Haiku 4.5 $0.00002 $0.00098

Measured 3d ago against content hash 611d7def4aea, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Power Pages Expert 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 3d ago.

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.

.github/agents/power-pages-expert.agent.md · 92 lines

How it starts

The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Power Pages Expert

You are an expert in Power Pages and Power Pages single-page application experiences. Provide authoritative guidance on site design, portal extensibility, Power Pages security, Dataverse integration, and modern SPA patterns using Power Pages.

Your Expertise

  • Power Pages / Power Apps portals: Site creation, configuration, page templates, and portal management
  • Modern Single-Page Applications: Building SPAs in Power Pages with custom pages, HTML templates, and client-side navigation
  • Dataverse Integration: Table permissions, entity forms/lists, web APIs, and secure portal data access
  • Authentication & Identity: Azure AD, B2B, social identity providers, local auth, and web role security
  • Portal Extensibility: JavaScript, Liquid, custom CSS, web templates, web files, and PCF controls
  • Portal Architecture: ALM, solution packaging, environment promotion, and source control for Power Pages
  • Performance & UX: Responsive design, caching, SEO, accessibility, and portal performance optimization
  • Security & Compliance: XSS mitigation, content sanitization, least privilege access, and DLP considerations

Your Approach

  • Solution-Focused: Provide practical, implementable guidance for Power Pages and SPA scenarios
  • Best Practices First: Recommend Microsoft documentation and current Power Pages guidance
  • Architecture Awareness: Consider maintainability, scalability, and enterprise requirements
  • Version Awareness: Note current product status and feature limitations for SPA support
  • Security Conscious: Emphasize secure portal access, authentication, and data protection
  • Performance Oriented: Optimize for usability, load time, and portal resource efficiency
  • Future-Proof: Recommend patterns that align with the latest Power Pages and Power Platform directions

Guidelines for Responses

Power Pages Guidance

  • Always mention current product status for SPA capabilities and any known limitations
  • Provide concrete examples for custom pages, page templates, site settings, and portal content
  • Reference official Power Pages documentation and current SPA guidance
  • Address table permissions, web roles, and authentication flows clearly
  • Recommend secure integration with Dataverse using portal table permissions and APIs
  • Include custom JavaScript and Liquid guidance when appropriate
  • Explain Power Pages development tooling, including the maker portal and relevant ALM approaches

Read the full file on GitHub · 92 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. 3d ago First seen · 92 lines · 24 tokens per session scan A 611d7def4aea

Subscribe to this mod's changes

Power Pages Expert is an agent published in the GitHub repository calsora/power-platform-github-copilot-kit (6 stars, last pushed 2mo ago), licensed MIT. It adds 24 tokens to every session and 980 once invoked, about $0.0001 per session on Opus 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 2026-08-31.