What is publish-pcf-companion?

A deployment tool for publishing the Power Apps companion control to a Power Platform environment. The companion is the Studio-side component that sends requests to the native control.

Use it to push a dispatcher PCF control with the pac CLI to an authenticated Power Platform environment.

It removes the manual deployment steps and checks that the required development tools and login are available.

publish-pcf-companion — Skill for Claude Code by microsoft

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 · 862 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.

Any agent

npx skills add microsoft/power-platform-skills --skill publish-pcf-companion

Clone the repo

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

Made for: Claude Code.

Or install power-apps-mobile-extension, the plugin that ships this one along with the rest of its 12 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/microsoft/power-platform-skills/publish-pcf-companion/github.svg)](https://agentmods.dev/skills/microsoft/power-platform-skills/publish-pcf-companion)

Your own site

<a href="https://agentmods.dev/skills/microsoft/power-platform-skills/publish-pcf-companion"><img src="https://agentmods.dev/badge/skills/microsoft/power-platform-skills/publish-pcf-companion/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/microsoft/power-platform-skills/publish-pcf-companion"><img src="https://agentmods.dev/badge/skills/microsoft/power-platform-skills/publish-pcf-companion.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 204 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 5,562 The whole file, excluding the scripts and references it only reads on demand.

Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 3 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

high Tool Misuse · line 228
Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).

Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
medium Excessive Agency · line 5
Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.

Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
medium Excessive Agency · line 314
Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00204	$0.05562
Opus 5	$0.00102	$0.02781
Sonnet 5	$0.00041	$0.01112
Haiku 4.5	$0.00020	$0.00556

Measured 8d ago against content hash e298f57ec389, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade C, and why

publish-pcf-companion scanned grade C with 1 finding 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 8d 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

| `Build of <Pascal>PCF.csproj failed` | The PCF tooling tried `dotnet build` and it failed. Often a stale `out/` — run `rm -rf out/ && npm run build` then retry. |

plugins/power-apps-mobile-extension/skills/publish-pcf-companion/SKILL.md · 317 lines

How it starts

The opening of the file, as written. The whole thing — 317 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/publish-pcf-companion

On-demand deployment of the dispatcher PCF for a third-party .ppmplugin control to a Power Platform environment. The dispatcher PCF is the Studio-side control that dispatches the composite key <name>/<receiver> over the wrap shell's SendMessagePlugin bridge to the control's native module. Runs pac pcf push against the user's active pac auth profile. Decoupled from /generate-pcf-companion — the engineer scaffolds locally, customizes / iterates, then deploys when ready.

Step 1 — Read shared docs and verify prereqs

Read shared/shared-instructions.md, shared/naming-conventions.md.

Apply the per-skill minimal prereq policy (shared-instructions.md §1.5). This skill needs Node.js 20+ with npm, pac CLI, .NET SDK, and an active pac auth profile. It does not need pnpm.

Print the prereq status as a visible block per shared-instructions.md §9.2 before continuing:

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 Prereq check — /publish-pcf-companion
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

 🟢 ✓ Node.js 20+ and npm installed       (for npm install / npm run build)
 🟢 ✓ pac CLI installed                   (for pac pcf push)
 🟢 ✓ .NET SDK installed                  (solution build runs inside pac pcf push)
 🟢 ✓ pac auth profile active             (target env: <env URL from pac org who>)

 🟢 4 checks passed. Ready to proceed.

Fix table for failures:

Missing	`→ Fix:` line in the failure block
Node.js / npm	Install Node.js 20 LTS from `https://nodejs.org`, then verify with `node -v` and `npm -v`
`pac` CLI	`dotnet tool install -g Microsoft.PowerApps.CLI.Tool` (chains on .NET SDK first if also missing)
.NET SDK	`brew install dotnet` (mac) / `winget install Microsoft.DotNet.SDK.10` (win) / package manager (linux)
No active `pac auth`	`pac auth create --environment <your-env-url>` (interactive browser flow; use an identity with access to the target Power Platform environment). Do not reach for `--deviceCode` first — it's a headless-shell fallback that commonly fails under Conditional Access.

Read the full file on GitHub · 317 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.

8d ago First seen · 317 lines · 204 tokens per session scan C e298f57ec389

Subscribe to this mod's changes

publish-pcf-companion is a skill published in the GitHub repository microsoft/power-platform-skills (862 stars, last pushed today), licensed MIT. It adds 204 tokens to every session and 5,562 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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