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.
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.
npx skills add microsoft/power-platform-skills --skill add-excelgit clone --depth 1 https://github.com/microsoft/power-platform-skillsWrote 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.
[](https://agentmods.dev/skills/microsoft/power-platform-skills/add-excel)<a href="https://agentmods.dev/skills/microsoft/power-platform-skills/add-excel"><img src="https://agentmods.dev/badge/skills/microsoft/power-platform-skills/add-excel/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.
<a href="https://agentmods.dev/skills/microsoft/power-platform-skills/add-excel"><img src="https://agentmods.dev/badge/skills/microsoft/power-platform-skills/add-excel.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
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 →
- medium Excessive Agency · line 6 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.
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 | $0.00033 | $0.00813 |
| Opus 5.5 | $0.00013 | $0.00325 |
| Sonnet 5.5 | $0.00007 | $0.00163 |
| Haiku 4.5 | $0.00003 | $0.00081 |
Grade A, and why
add-excel 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 1mo 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.
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.
📋 Shared Instructions: shared-instructions.md - Cross-cutting concerns.
Add Excel Online
Workflow
- Check Memory Bank → 2. Gather → 3. Add Connector → 4. Configure → 5. Build → 6. Update Memory Bank
Step 1: Check Memory Bank
Check for memory-bank.md per shared-instructions.md.
Step 2: Gather
Ask the user:
- Where is the workbook? (OneDrive or SharePoint)
- Workbook file name
- Which table(s) in the workbook to access
Step 3: Add Connector
First, find the connection ID (see connector-reference.md):
Run the /list-connections skill. Find the Excel Online (Business) connection in the output. If none exists, direct the user to create one using the environment-specific Connections URL — construct it from the active environment ID in context (from power.config.json or a prior step): https://make.powerapps.com/environments/<environment-id>/connections → + New connection → search for the connector → Create.
Excel Online is a tabular datasource -- requires -c (connection ID), -d (drive), and --table (table name in workbook):
# OneDrive workbook
pa app add data-source --connector excelonlinebusiness -c <connection-id> -d 'me' --table 'Table1'
# SharePoint workbook -- dataset is the document library path
pa app add data-source --connector excelonlinebusiness -c <connection-id> -d 'sites/your-site' --table 'Table1'
Run for each table the user needs.
Step 4: Configure
AddRowIntoTable -- adds a row to an Excel table:
// OneDrive workbook
await ExcelOnlineBusinessService.AddRowIntoTable({
source: "me",
drive: "me",
file: "MyWorkbook.xlsx",
table: "Table1",
body: { column1: "value1", column2: "value2" } // Flat object, NO "items" wrapper
});
// SharePoint workbook
await ExcelOnlineBusinessService.AddRowIntoTable({
source: "sites/your-site",
drive: "drive-id",
file: "SharedWorkbook.xlsx",
table: "Table1",
body: { column1: "value1", column2: "value2" }
});
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.
- 1mo ago First seen · 92 lines · 33 tokens per session scan A 930f31b63abe
add-excel is a skill published in the GitHub repository microsoft/power-platform-skills (1,053 stars, last pushed today), licensed MIT. It adds 33 tokens to every session and 813 once invoked, about $0.0001 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 2026-08-30.
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