How Windows’s scores are calculated

The full audit trail, recomputed from the verdict data at build time through the same code that produced the leaderboard: verdict × quality × story weight per cell, cells sum to dimension scores, dimensions blend into the PA Score. Every number on the product page is reproducible from this page alone; for why the formula looks like this, see the methodology.

verdict factors: full ×1.0 · partial ×0.6 · disputed ×0.3 · none ×0.0 · n/a excluded from both sides · cell points = weight × quality × factor · cell max = weight × 10

PA Score9/100

Agent-ready 15.2 × 0.30 = 4.56

API quality 0.0 × 0.20 = 0.00

Openness 5.1 × 0.20 = 1.02

Built-in AI 19.3 × 0.15 = 2.90

Automation 0.0 × 0.15 = 0.00

(4.56 + 0.00 + 1.02 + 2.90 + 0.00) ÷ (0.30 + 0.20 + 0.20 + 0.15 + 0.15) = 8.47 ÷ 1.00 = 8.5

Scores are stored to 1 decimal; the product page’s pills round to whole numbers for display. Each dimension below shows the stories, verdicts, and cited evidence behind its number.

Agent-ready15.2/100×0.30 of the PA blend

Outside-in: can YOUR agent reach and drive this product — API, MCP, CLI, headless runs, agent docs.

Point an agent at llms.txt or agent-oriented docsweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

[probe] https://support.microsoft.com/llms.txt“PROBE llms.txt: HTTP 404 at https://support.microsoft.com/llms.txt”
[probe] https://support.microsoft.com/en-us/windows.md“PROBE docs-md: HTTP 404 at https://support.microsoft.com/en-us/windows.md”
[probe] https://support.microsoft.com/openapi.json“PROBE openapi: all candidate paths 404 (https://support.microsoft.com/openapi.json, https://support.microsoft.com/swagger.json, https://support.microsoft.com/api/openapi.json, https://support.microsoft.com/.well-known/openapi.json)”

Run the product headlessly / in CI for automationweight 2

2 (weight) × 3 (quality) × 0.6 (partial) = 3.6 of 20 max

[probe] https://learn.microsoft.com/en-us/powershell/scripting/overview“official CLI documented at https://learn.microsoft.com/en-us/powershell/scripting/overview”
[community] https://news.ycombinator.com/item?id=21103683“I tried with Windows 10, and Windows Server 2019. Windows 2019 is super fast to set up and literally compiled the same c code in half the time it took in Windows 10.”

Plug MCP servers into this product so it can use their toolsweight 3

3 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 30 max

[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Get started with Windows AI Foundry toolkit”
[claimed-docs] https://www.microsoft.com/en-us/windows/“Get work done faster with Copilot inside your favorite Microsoft apps like Word, Excel, and PowerPoint.”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Windows AI APIs for Copilot+ PCs”

Connect an agent via an official MCP serverweight 3

3 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 30 max

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Use an official CLIweight 2

2 (weight) × 5 (quality) × 0.6 (partial) = 6.0 of 20 max

[probe] https://learn.microsoft.com/en-us/powershell/scripting/overview“official CLI documented at https://learn.microsoft.com/en-us/powershell/scripting/overview”

Drive the product through a documented public APIweight 3

3 (weight) × 5 (quality) × 0.6 (partial) = 9.0 of 30 max

[probe] https://learn.microsoft.com/en-us/powershell/scripting/overview“official CLI documented at https://learn.microsoft.com/en-us/powershell/scripting/overview”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“C# with .NET 8 or later, C++ (Win32 and C++/WinRT), Rust (via windows-rs crate). XAML is used for UI markup in WinUI 3 and WPF.”
[probe] https://support.microsoft.com/llms.txt“PROBE llms.txt: HTTP 404 at https://support.microsoft.com/llms.txt”
[probe] https://support.microsoft.com/openapi.json“PROBE openapi: all candidate paths 404 (https://support.microsoft.com/openapi.json, https://support.microsoft.com/swagger.json, https://support.microsoft.com/api/openapi.json, https://support.microsoft.com/.well-known/openapi.json)”

Issue scoped/least-privilege API credentials for an agentweight 2

n/a — not applicable to this product: excluded from numerator and denominator

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Build against official SDKsweight 2

2 (weight) × 6 (quality) × 0.6 (partial) = 7.2 of 20 max

[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Build native Windows desktop apps with the Windows App SDK and WinUI 3, the recommended UI framework for new Windows apps.”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Get started with Windows AI Foundry toolkit”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Windows AI APIs for Copilot+ PCs”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“C# with .NET 8 or later, C++ (Win32 and C++/WinRT), Rust (via windows-rs crate). XAML is used for UI markup in WinUI 3 and WPF.”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Quickstart: Create and run a WinUI 3 project”

Subscribe to events via webhooksweight 2

n/a — not applicable to this product: excluded from numerator and denominator

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Agent-ready = 25.8 ÷ 170 × 100 = 15.2

API quality0.0/100×0.20 of the PA blend

The programmable surface once an agent is there — machine-readable spec, interactive docs, sandbox, versioning discipline.

Explore an interactive API reference with runnable examplesweight 2

n/a — not applicable to this product: excluded from numerator and denominator

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Download a machine-readable API spec (OpenAPI or equivalent)weight 2

n/a — not applicable to this product: excluded from numerator and denominator

[probe] https://support.microsoft.com/openapi.json“PROBE openapi: all candidate paths 404 (https://support.microsoft.com/openapi.json, https://support.microsoft.com/swagger.json, https://support.microsoft.com/api/openapi.json, https://support.microsoft.com/.well-known/openapi.json)”

Test against a sandbox environment without touching production dataweight 1

1 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 10 max

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Rely on versioned APIs with a documented deprecation policyweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

[probe] https://support.microsoft.com/llms.txt“PROBE llms.txt: HTTP 404 at https://support.microsoft.com/llms.txt”
[probe] https://support.microsoft.com/en-us/windows.md“PROBE docs-md: HTTP 404 at https://support.microsoft.com/en-us/windows.md”
[probe] https://support.microsoft.com/openapi.json“PROBE openapi: all candidate paths 404 (https://support.microsoft.com/openapi.json, https://support.microsoft.com/swagger.json, https://support.microsoft.com/api/openapi.json, https://support.microsoft.com/.well-known/openapi.json)”

API quality = 0.0 ÷ 30 × 100 = 0.0

Openness5.1/100×0.20 of the PA blend

Can you leave, inspect, or self-host — data export, open source, portability.

Do everything through the API that I can do in the UIweight 2

2 (weight) × 3 (quality) × 0.6 (partial) = 3.6 of 20 max

[probe] https://learn.microsoft.com/en-us/powershell/scripting/overview“official CLI documented at https://learn.microsoft.com/en-us/powershell/scripting/overview”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Build native Windows desktop apps with the Windows App SDK and WinUI 3, the recommended UI framework for new Windows apps.”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Quickstart: Create and run a WinUI 3 project”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“C# with .NET 8 or later, C++ (Win32 and C++/WinRT), Rust (via windows-rs crate). XAML is used for UI markup in WinUI 3 and WPF.”
[probe] https://support.microsoft.com/llms.txt“PROBE llms.txt: HTTP 404 at https://support.microsoft.com/llms.txt”
[probe] https://support.microsoft.com/en-us/windows.md“PROBE docs-md: HTTP 404 at https://support.microsoft.com/en-us/windows.md”
[probe] https://support.microsoft.com/openapi.json“PROBE openapi: all candidate paths 404 (https://support.microsoft.com/openapi.json, https://support.microsoft.com/swagger.json, https://support.microsoft.com/api/openapi.json, https://support.microsoft.com/.well-known/openapi.json)”

Export all of my data in open formats and leaveweight 3

3 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 30 max

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Read the product's source under an open licenseweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Self-host the core productweight 3

n/a — not applicable to this product: excluded from numerator and denominator

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Openness = 3.6 ÷ 70 × 100 = 5.1

Built-in AI19.3/100×0.15 of the PA blend

Inside-out: how agentic the product itself is for its users — built-in assistants, autonomous features.

Get AI-generated insights and suggestions from my data inside the productweight 2

2 (weight) × 4 (quality) × 0.6 (partial) = 4.8 of 20 max

[claimed-docs] https://www.microsoft.com/en-us/windows/“Get work done faster with Copilot inside your favorite Microsoft apps like Word, Excel, and PowerPoint.”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Get started with Windows AI Foundry toolkit”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Windows AI APIs for Copilot+ PCs”

Set up automations that run autonomously in the backgroundweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

[claimed-docs] https://www.microsoft.com/en-us/windows/“Get work done faster with Copilot inside your favorite Microsoft apps like Word, Excel, and PowerPoint.”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Windows AI APIs for Copilot+ PCs”

Delegate tasks to a built-in AI assistant inside the productweight 3

3 (weight) × 5 (quality) × 0.6 (partial) = 9.0 of 30 max

[claimed-docs] https://www.microsoft.com/en-us/windows/“Get work done faster with Copilot inside your favorite Microsoft apps like Word, Excel, and PowerPoint.”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Get started with Windows AI Foundry toolkit”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Windows AI APIs for Copilot+ PCs”

Operate the product with natural-language commandsweight 2

2 (weight) × 3 (quality) × 0.6 (partial) = 3.6 of 20 max

[claimed-docs] https://www.microsoft.com/en-us/windows/“Get work done faster with Copilot inside your favorite Microsoft apps like Word, Excel, and PowerPoint.”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Get started with Windows AI Foundry toolkit”
[claimed-docs] https://learn.microsoft.com/en-us/windows/apps/“Windows AI APIs for Copilot+ PCs”

Built-in AI = 17.4 ÷ 90 × 100 = 19.3

Automation0.0/100×0.15 of the PA blend

Depth of automation primitives — rules, scheduling, bulk operations, webhooks.

Perform bulk operations across many items at onceweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

[probe] https://learn.microsoft.com/en-us/powershell/scripting/overview“official CLI documented at https://learn.microsoft.com/en-us/powershell/scripting/overview”

Define rules that trigger actions automatically on eventsweight 3

3 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 30 max

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Schedule recurring jobs or workflowsweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

[probe] https://learn.microsoft.com/en-us/powershell/scripting/overview“official CLI documented at https://learn.microsoft.com/en-us/powershell/scripting/overview”

Version, review, and roll back my automationsweight 1

1 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 10 max

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Automation = 0.0 ÷ 80 × 100 = 0.0