[docs] Update glossary - weekly full scan

[Amaury Levé (Evangelink)]

Glossary Updates

Scan Type: Full scan (weekly — Monday 2026-06-30, covering last 7 days)

Terms Added:

• ITestFilter: New MSTest interface for programmatic test filtering, evaluated before any type is loaded. Registered via [assembly: TestFilterProvider]. Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterContext: Context object passed to ITestFilter.Filter() exposing test metadata without type-loading (categories, traits, name, namespace, etc.). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterProvider: Assembly-level MSTest attribute that registers an ITestFilter implementation (AllowMultiple = false). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterResult: Readonly struct with Run, Drop, and Skip(reason) decisions returned from ITestFilter.Filter(). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• ITestHostHandle: Experimental MTP interface representing the lifecycle of a custom-launched test host (exposes WaitForExitAsync, ExitCode, HasExited, Terminate, optional Identifier). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• ITestHostLauncher: Experimental MTP extension point that replaces Process.Start for launching the out-of-process test host (e.g. for packaged Windows apps). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• Microsoft.Testing.Extensions.PackagedApp: Experimental MTP extension (1.0.0-alpha) for deploying and launching packaged Windows apps (UWP / WinUI) via ITestHostLauncher. Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• VideoRecorder: Experimental MTP extension (1.0.0-alpha) for continuous screen recording via ffmpeg with per-test clip slicing. Introduced in PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377.

Changes Analyzed:

• Reviewed ~38 commits from 2026-06-23 to 2026-06-30
• Analyzed 4 merged PRs with new user-facing API or features: Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896, Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377, Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454, Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463
• Remaining commits were dependency bumps, internal refactors, perf improvements, and test additions with no new user-facing terminology

Related Changes:

• PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896: Add ITestFilter / [TestFilterProvider] for programmatic test filtering
• PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377: Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP
• PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454: Add generic ITestHostLauncher extension point + PackagedApp reference extension
• PR Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463: Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) — no new user-facing terms; internal protocol change

🤖 Automated content by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Glossary Maintainer workflow. · 564.4 AIC · ⌖ 25.5 AIC · ⊞ 43.7K · [◷]( · ◷)

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To install this agentic workflow, run

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• expires on Jul 2, 2026, 6:02 AM UTC

[Copilot]

Pull request overview

Updates the documentation glossary in docs/ to capture newly introduced user-facing MSTest filtering APIs and experimental Microsoft.Testing.Platform (MTP) extension points (plus new extension packages).

Changes:

• Adds glossary entries for MSTest programmatic filtering: ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult.
• Adds glossary entries for MTP host-launch extensibility: ITestHostLauncher, ITestHostHandle, and the Microsoft.Testing.Extensions.PackagedApp extension.
• Adds a glossary entry for the Microsoft.Testing.Extensions.VideoRecorder extension and its CLI options.

Show a summary per file

File	Description
docs/glossary.md	Adds new glossary terms for recent MSTest filtering APIs and experimental MTP host-launch / video-recording extensions.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 4
• Review effort level: Low

[Amaury Levé (Evangelink)]

Note

🤖 Automated review by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Expert Code Review workflow. To request a follow-up action, reply by tagging @copilot directly.

This is a documentation-only PR (one file: docs/glossary.md). All 22 review dimensions that apply to code are N/A. The applicable dimension is #17 Documentation Accuracy.

Three NIT-level factual errors were found by cross-referencing the glossary entries against the source files; they are captured as inline comments above. One advisory observation is listed below.

#	Dimension	Verdict
17	Documentation Accuracy	🟡 3 NITs (inline)

✅ All other dimensions N/A (docs-only change).

---

Advisory — Missing [Experimental("MSTESTEXP")] disclosure for MSTest filtering types

The four new MSTest entries (ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult) are all annotated with [Experimental("MSTESTEXP", UrlFormat = "(aka.ms/redacted) in their source files. Consumers must suppress or acknowledge this diagnostic to use them (e.g. #pragma warning disable MSTESTEXPor[assembly: System.Diagnostics.CodeAnalysis.Experimental("MSTESTEXP")]`).

The parallel MTP entries (ITestHostHandle, ITestHostLauncher, etc.) consistently note [Experimental("TPEXP")]; omitting the equivalent disclosure for the MSTest entries is an inconsistency that could catch users off guard.

No action is strictly required (the experimental warning is surfaced at compile time anyway), but adding a note like "[Experimental("MSTESTEXP")] — suppress with #pragma warning disable MSTESTEXP" to the four MSTest entries would make the glossary more useful as a quick reference.

---

Summary of inline NITs (no blocking or major issues)

• Lines 141 & 145 — ITestHostHandle / ITestHostLauncher namespace should be Microsoft.Testing.Platform.Extensions.TestHostControllers, not Microsoft.Testing.Platform
• Line 141 — Identifier description ("intentionally not a numeric process id") contradicts the source, which explicitly names a process id as a valid value
• Line 315 — TestFilterResult.Skip says "Ignored" (should be "Skipped") and conflates ArgumentNullException (null) with ArgumentException (empty/whitespace)

[Amaury Levé (Evangelink)]

Glossary Updates

Scan Type: Full scan (weekly — Monday 2026-06-30, covering last 7 days)

Terms Added:

• ITestFilter: New MSTest interface for programmatic test filtering, evaluated before any type is loaded. Registered via [assembly: TestFilterProvider]. Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterContext: Context object passed to ITestFilter.Filter() exposing test metadata without type-loading (categories, traits, name, namespace, etc.). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterProvider: Assembly-level MSTest attribute that registers an ITestFilter implementation (AllowMultiple = false). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterResult: Readonly struct with Run, Drop, and Skip(reason) decisions returned from ITestFilter.Filter(). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• ITestHostHandle: Experimental MTP interface representing the lifecycle of a custom-launched test host (exposes WaitForExitAsync, ExitCode, HasExited, Terminate, optional Identifier). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• ITestHostLauncher: Experimental MTP extension point that replaces Process.Start for launching the out-of-process test host (e.g. for packaged Windows apps). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• Microsoft.Testing.Extensions.PackagedApp: Experimental MTP extension (1.0.0-alpha) for deploying and launching packaged Windows apps (UWP / WinUI) via ITestHostLauncher. Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• VideoRecorder: Experimental MTP extension (1.0.0-alpha) for continuous screen recording via ffmpeg with per-test clip slicing. Introduced in PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377.

Changes Analyzed:

• Reviewed ~38 commits from 2026-06-23 to 2026-06-30
• Analyzed 4 merged PRs with new user-facing API or features: Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896, Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377, Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454, Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463
• Remaining commits were dependency bumps, internal refactors, perf improvements, and test additions with no new user-facing terminology

Related Changes:

• PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896: Add ITestFilter / [TestFilterProvider] for programmatic test filtering
• PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377: Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP
• PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454: Add generic ITestHostLauncher extension point + PackagedApp reference extension
• PR Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463: Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) — no new user-facing terms; internal protocol change

🤖 Automated content by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Glossary Maintainer workflow. · 564.4 AIC · ⌖ 25.5 AIC · ⊞ 43.7K · [◷]( · ◷)

Add this agentic workflows to your repo

To install this agentic workflow, run

gh aw add githubnext/agentics/workflows/glossary-maintainer.md@main

• expires on Jul 2, 2026, 6:02 AM UTC

[Copilot]

Pull request overview

Updates the documentation glossary in docs/ to capture newly introduced user-facing MSTest filtering APIs and experimental Microsoft.Testing.Platform (MTP) extension points (plus new extension packages).

Changes:

• Adds glossary entries for MSTest programmatic filtering: ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult.
• Adds glossary entries for MTP host-launch extensibility: ITestHostLauncher, ITestHostHandle, and the Microsoft.Testing.Extensions.PackagedApp extension.
• Adds a glossary entry for the Microsoft.Testing.Extensions.VideoRecorder extension and its CLI options.

Show a summary per file

File	Description
docs/glossary.md	Adds new glossary terms for recent MSTest filtering APIs and experimental MTP host-launch / video-recording extensions.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 4
• Review effort level: Low

[Amaury Levé (Evangelink)]

Note

🤖 Automated review by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Expert Code Review workflow. To request a follow-up action, reply by tagging @copilot directly.

This is a documentation-only PR (one file: docs/glossary.md). All 22 review dimensions that apply to code are N/A. The applicable dimension is #17 Documentation Accuracy.

Three NIT-level factual errors were found by cross-referencing the glossary entries against the source files; they are captured as inline comments above. One advisory observation is listed below.

#	Dimension	Verdict
17	Documentation Accuracy	🟡 3 NITs (inline)

✅ All other dimensions N/A (docs-only change).

---

Advisory — Missing [Experimental("MSTESTEXP")] disclosure for MSTest filtering types

The four new MSTest entries (ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult) are all annotated with [Experimental("MSTESTEXP", UrlFormat = "(aka.ms/redacted) in their source files. Consumers must suppress or acknowledge this diagnostic to use them (e.g. #pragma warning disable MSTESTEXPor[assembly: System.Diagnostics.CodeAnalysis.Experimental("MSTESTEXP")]`).

The parallel MTP entries (ITestHostHandle, ITestHostLauncher, etc.) consistently note [Experimental("TPEXP")]; omitting the equivalent disclosure for the MSTest entries is an inconsistency that could catch users off guard.

No action is strictly required (the experimental warning is surfaced at compile time anyway), but adding a note like "[Experimental("MSTESTEXP")] — suppress with #pragma warning disable MSTESTEXP" to the four MSTest entries would make the glossary more useful as a quick reference.

---

Summary of inline NITs (no blocking or major issues)

• Lines 141 & 145 — ITestHostHandle / ITestHostLauncher namespace should be Microsoft.Testing.Platform.Extensions.TestHostControllers, not Microsoft.Testing.Platform
• Line 141 — Identifier description ("intentionally not a numeric process id") contradicts the source, which explicitly names a process id as a valid value
• Line 315 — TestFilterResult.Skip says "Ignored" (should be "Skipped") and conflates ArgumentNullException (null) with ArgumentException (empty/whitespace)

[Amaury Levé (Evangelink)]

Glossary Updates

Scan Type: Full scan (weekly — Monday 2026-06-30, covering last 7 days)

Terms Added:

• ITestFilter: New MSTest interface for programmatic test filtering, evaluated before any type is loaded. Registered via [assembly: TestFilterProvider]. Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterContext: Context object passed to ITestFilter.Filter() exposing test metadata without type-loading (categories, traits, name, namespace, etc.). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterProvider: Assembly-level MSTest attribute that registers an ITestFilter implementation (AllowMultiple = false). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterResult: Readonly struct with Run, Drop, and Skip(reason) decisions returned from ITestFilter.Filter(). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• ITestHostHandle: Experimental MTP interface representing the lifecycle of a custom-launched test host (exposes WaitForExitAsync, ExitCode, HasExited, Terminate, optional Identifier). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• ITestHostLauncher: Experimental MTP extension point that replaces Process.Start for launching the out-of-process test host (e.g. for packaged Windows apps). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• Microsoft.Testing.Extensions.PackagedApp: Experimental MTP extension (1.0.0-alpha) for deploying and launching packaged Windows apps (UWP / WinUI) via ITestHostLauncher. Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• VideoRecorder: Experimental MTP extension (1.0.0-alpha) for continuous screen recording via ffmpeg with per-test clip slicing. Introduced in PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377.

Changes Analyzed:

• Reviewed ~38 commits from 2026-06-23 to 2026-06-30
• Analyzed 4 merged PRs with new user-facing API or features: Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896, Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377, Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454, Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463
• Remaining commits were dependency bumps, internal refactors, perf improvements, and test additions with no new user-facing terminology

Related Changes:

• PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896: Add ITestFilter / [TestFilterProvider] for programmatic test filtering
• PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377: Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP
• PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454: Add generic ITestHostLauncher extension point + PackagedApp reference extension
• PR Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463: Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) — no new user-facing terms; internal protocol change

🤖 Automated content by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Glossary Maintainer workflow. · 564.4 AIC · ⌖ 25.5 AIC · ⊞ 43.7K · [◷]( · ◷)

Add this agentic workflows to your repo

To install this agentic workflow, run

gh aw add githubnext/agentics/workflows/glossary-maintainer.md@main

• expires on Jul 2, 2026, 6:02 AM UTC

[Copilot]

Pull request overview

Updates the documentation glossary in docs/ to capture newly introduced user-facing MSTest filtering APIs and experimental Microsoft.Testing.Platform (MTP) extension points (plus new extension packages).

Changes:

• Adds glossary entries for MSTest programmatic filtering: ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult.
• Adds glossary entries for MTP host-launch extensibility: ITestHostLauncher, ITestHostHandle, and the Microsoft.Testing.Extensions.PackagedApp extension.
• Adds a glossary entry for the Microsoft.Testing.Extensions.VideoRecorder extension and its CLI options.

Show a summary per file

File	Description
docs/glossary.md	Adds new glossary terms for recent MSTest filtering APIs and experimental MTP host-launch / video-recording extensions.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 4
• Review effort level: Low

[Amaury Levé (Evangelink)]

Note

🤖 Automated review by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Expert Code Review workflow. To request a follow-up action, reply by tagging @copilot directly.

This is a documentation-only PR (one file: docs/glossary.md). All 22 review dimensions that apply to code are N/A. The applicable dimension is #17 Documentation Accuracy.

Three NIT-level factual errors were found by cross-referencing the glossary entries against the source files; they are captured as inline comments above. One advisory observation is listed below.

#	Dimension	Verdict
17	Documentation Accuracy	🟡 3 NITs (inline)

✅ All other dimensions N/A (docs-only change).

---

Advisory — Missing [Experimental("MSTESTEXP")] disclosure for MSTest filtering types

The four new MSTest entries (ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult) are all annotated with [Experimental("MSTESTEXP", UrlFormat = "(aka.ms/redacted) in their source files. Consumers must suppress or acknowledge this diagnostic to use them (e.g. #pragma warning disable MSTESTEXPor[assembly: System.Diagnostics.CodeAnalysis.Experimental("MSTESTEXP")]`).

The parallel MTP entries (ITestHostHandle, ITestHostLauncher, etc.) consistently note [Experimental("TPEXP")]; omitting the equivalent disclosure for the MSTest entries is an inconsistency that could catch users off guard.

No action is strictly required (the experimental warning is surfaced at compile time anyway), but adding a note like "[Experimental("MSTESTEXP")] — suppress with #pragma warning disable MSTESTEXP" to the four MSTest entries would make the glossary more useful as a quick reference.

---

Summary of inline NITs (no blocking or major issues)

• Lines 141 & 145 — ITestHostHandle / ITestHostLauncher namespace should be Microsoft.Testing.Platform.Extensions.TestHostControllers, not Microsoft.Testing.Platform
• Line 141 — Identifier description ("intentionally not a numeric process id") contradicts the source, which explicitly names a process id as a valid value
• Line 315 — TestFilterResult.Skip says "Ignored" (should be "Skipped") and conflates ArgumentNullException (null) with ArgumentException (empty/whitespace)

[Amaury Levé (Evangelink)]

Glossary Updates

Scan Type: Full scan (weekly — Monday 2026-06-30, covering last 7 days)

Terms Added:

• ITestFilter: New MSTest interface for programmatic test filtering, evaluated before any type is loaded. Registered via [assembly: TestFilterProvider]. Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterContext: Context object passed to ITestFilter.Filter() exposing test metadata without type-loading (categories, traits, name, namespace, etc.). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterProvider: Assembly-level MSTest attribute that registers an ITestFilter implementation (AllowMultiple = false). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterResult: Readonly struct with Run, Drop, and Skip(reason) decisions returned from ITestFilter.Filter(). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• ITestHostHandle: Experimental MTP interface representing the lifecycle of a custom-launched test host (exposes WaitForExitAsync, ExitCode, HasExited, Terminate, optional Identifier). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• ITestHostLauncher: Experimental MTP extension point that replaces Process.Start for launching the out-of-process test host (e.g. for packaged Windows apps). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• Microsoft.Testing.Extensions.PackagedApp: Experimental MTP extension (1.0.0-alpha) for deploying and launching packaged Windows apps (UWP / WinUI) via ITestHostLauncher. Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• VideoRecorder: Experimental MTP extension (1.0.0-alpha) for continuous screen recording via ffmpeg with per-test clip slicing. Introduced in PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377.

Changes Analyzed:

• Reviewed ~38 commits from 2026-06-23 to 2026-06-30
• Analyzed 4 merged PRs with new user-facing API or features: Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896, Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377, Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454, Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463
• Remaining commits were dependency bumps, internal refactors, perf improvements, and test additions with no new user-facing terminology

Related Changes:

• PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896: Add ITestFilter / [TestFilterProvider] for programmatic test filtering
• PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377: Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP
• PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454: Add generic ITestHostLauncher extension point + PackagedApp reference extension
• PR Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463: Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) — no new user-facing terms; internal protocol change

🤖 Automated content by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Glossary Maintainer workflow. · 564.4 AIC · ⌖ 25.5 AIC · ⊞ 43.7K · [◷]( · ◷)

Add this agentic workflows to your repo

To install this agentic workflow, run

gh aw add githubnext/agentics/workflows/glossary-maintainer.md@main

• expires on Jul 2, 2026, 6:02 AM UTC

[Copilot]

Pull request overview

Updates the documentation glossary in docs/ to capture newly introduced user-facing MSTest filtering APIs and experimental Microsoft.Testing.Platform (MTP) extension points (plus new extension packages).

Changes:

• Adds glossary entries for MSTest programmatic filtering: ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult.
• Adds glossary entries for MTP host-launch extensibility: ITestHostLauncher, ITestHostHandle, and the Microsoft.Testing.Extensions.PackagedApp extension.
• Adds a glossary entry for the Microsoft.Testing.Extensions.VideoRecorder extension and its CLI options.

Show a summary per file

File	Description
docs/glossary.md	Adds new glossary terms for recent MSTest filtering APIs and experimental MTP host-launch / video-recording extensions.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 4
• Review effort level: Low

[Amaury Levé (Evangelink)]

Note

🤖 Automated review by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Expert Code Review workflow. To request a follow-up action, reply by tagging @copilot directly.

This is a documentation-only PR (one file: docs/glossary.md). All 22 review dimensions that apply to code are N/A. The applicable dimension is #17 Documentation Accuracy.

Three NIT-level factual errors were found by cross-referencing the glossary entries against the source files; they are captured as inline comments above. One advisory observation is listed below.

#	Dimension	Verdict
17	Documentation Accuracy	🟡 3 NITs (inline)

✅ All other dimensions N/A (docs-only change).

---

Advisory — Missing [Experimental("MSTESTEXP")] disclosure for MSTest filtering types

The four new MSTest entries (ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult) are all annotated with [Experimental("MSTESTEXP", UrlFormat = "(aka.ms/redacted) in their source files. Consumers must suppress or acknowledge this diagnostic to use them (e.g. #pragma warning disable MSTESTEXPor[assembly: System.Diagnostics.CodeAnalysis.Experimental("MSTESTEXP")]`).

The parallel MTP entries (ITestHostHandle, ITestHostLauncher, etc.) consistently note [Experimental("TPEXP")]; omitting the equivalent disclosure for the MSTest entries is an inconsistency that could catch users off guard.

No action is strictly required (the experimental warning is surfaced at compile time anyway), but adding a note like "[Experimental("MSTESTEXP")] — suppress with #pragma warning disable MSTESTEXP" to the four MSTest entries would make the glossary more useful as a quick reference.

---

Summary of inline NITs (no blocking or major issues)

• Lines 141 & 145 — ITestHostHandle / ITestHostLauncher namespace should be Microsoft.Testing.Platform.Extensions.TestHostControllers, not Microsoft.Testing.Platform
• Line 141 — Identifier description ("intentionally not a numeric process id") contradicts the source, which explicitly names a process id as a valid value
• Line 315 — TestFilterResult.Skip says "Ignored" (should be "Skipped") and conflates ArgumentNullException (null) with ArgumentException (empty/whitespace)

[Amaury Levé (Evangelink)]

Glossary Updates

Scan Type: Full scan (weekly — Monday 2026-06-30, covering last 7 days)

Terms Added:

• ITestFilter: New MSTest interface for programmatic test filtering, evaluated before any type is loaded. Registered via [assembly: TestFilterProvider]. Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterContext: Context object passed to ITestFilter.Filter() exposing test metadata without type-loading (categories, traits, name, namespace, etc.). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterProvider: Assembly-level MSTest attribute that registers an ITestFilter implementation (AllowMultiple = false). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterResult: Readonly struct with Run, Drop, and Skip(reason) decisions returned from ITestFilter.Filter(). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• ITestHostHandle: Experimental MTP interface representing the lifecycle of a custom-launched test host (exposes WaitForExitAsync, ExitCode, HasExited, Terminate, optional Identifier). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• ITestHostLauncher: Experimental MTP extension point that replaces Process.Start for launching the out-of-process test host (e.g. for packaged Windows apps). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• Microsoft.Testing.Extensions.PackagedApp: Experimental MTP extension (1.0.0-alpha) for deploying and launching packaged Windows apps (UWP / WinUI) via ITestHostLauncher. Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• VideoRecorder: Experimental MTP extension (1.0.0-alpha) for continuous screen recording via ffmpeg with per-test clip slicing. Introduced in PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377.

Changes Analyzed:

• Reviewed ~38 commits from 2026-06-23 to 2026-06-30
• Analyzed 4 merged PRs with new user-facing API or features: Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896, Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377, Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454, Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463
• Remaining commits were dependency bumps, internal refactors, perf improvements, and test additions with no new user-facing terminology

Related Changes:

• PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896: Add ITestFilter / [TestFilterProvider] for programmatic test filtering
• PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377: Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP
• PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454: Add generic ITestHostLauncher extension point + PackagedApp reference extension
• PR Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463: Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) — no new user-facing terms; internal protocol change

🤖 Automated content by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Glossary Maintainer workflow. · 564.4 AIC · ⌖ 25.5 AIC · ⊞ 43.7K · [◷]( · ◷)

Add this agentic workflows to your repo

To install this agentic workflow, run

gh aw add githubnext/agentics/workflows/glossary-maintainer.md@main

• expires on Jul 2, 2026, 6:02 AM UTC

[Copilot]

Pull request overview

Updates the documentation glossary in docs/ to capture newly introduced user-facing MSTest filtering APIs and experimental Microsoft.Testing.Platform (MTP) extension points (plus new extension packages).

Changes:

• Adds glossary entries for MSTest programmatic filtering: ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult.
• Adds glossary entries for MTP host-launch extensibility: ITestHostLauncher, ITestHostHandle, and the Microsoft.Testing.Extensions.PackagedApp extension.
• Adds a glossary entry for the Microsoft.Testing.Extensions.VideoRecorder extension and its CLI options.

Show a summary per file

File	Description
docs/glossary.md	Adds new glossary terms for recent MSTest filtering APIs and experimental MTP host-launch / video-recording extensions.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 4
• Review effort level: Low

[Amaury Levé (Evangelink)]

Note

🤖 Automated review by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Expert Code Review workflow. To request a follow-up action, reply by tagging @copilot directly.

This is a documentation-only PR (one file: docs/glossary.md). All 22 review dimensions that apply to code are N/A. The applicable dimension is #17 Documentation Accuracy.

Three NIT-level factual errors were found by cross-referencing the glossary entries against the source files; they are captured as inline comments above. One advisory observation is listed below.

#	Dimension	Verdict
17	Documentation Accuracy	🟡 3 NITs (inline)

✅ All other dimensions N/A (docs-only change).

---

Advisory — Missing [Experimental("MSTESTEXP")] disclosure for MSTest filtering types

The four new MSTest entries (ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult) are all annotated with [Experimental("MSTESTEXP", UrlFormat = "(aka.ms/redacted) in their source files. Consumers must suppress or acknowledge this diagnostic to use them (e.g. #pragma warning disable MSTESTEXPor[assembly: System.Diagnostics.CodeAnalysis.Experimental("MSTESTEXP")]`).

The parallel MTP entries (ITestHostHandle, ITestHostLauncher, etc.) consistently note [Experimental("TPEXP")]; omitting the equivalent disclosure for the MSTest entries is an inconsistency that could catch users off guard.

No action is strictly required (the experimental warning is surfaced at compile time anyway), but adding a note like "[Experimental("MSTESTEXP")] — suppress with #pragma warning disable MSTESTEXP" to the four MSTest entries would make the glossary more useful as a quick reference.

---

Summary of inline NITs (no blocking or major issues)

• Lines 141 & 145 — ITestHostHandle / ITestHostLauncher namespace should be Microsoft.Testing.Platform.Extensions.TestHostControllers, not Microsoft.Testing.Platform
• Line 141 — Identifier description ("intentionally not a numeric process id") contradicts the source, which explicitly names a process id as a valid value
• Line 315 — TestFilterResult.Skip says "Ignored" (should be "Skipped") and conflates ArgumentNullException (null) with ArgumentException (empty/whitespace)

[Amaury Levé (Evangelink)]

Glossary Updates

Scan Type: Full scan (weekly — Monday 2026-06-30, covering last 7 days)

Terms Added:

• ITestFilter: New MSTest interface for programmatic test filtering, evaluated before any type is loaded. Registered via [assembly: TestFilterProvider]. Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterContext: Context object passed to ITestFilter.Filter() exposing test metadata without type-loading (categories, traits, name, namespace, etc.). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterProvider: Assembly-level MSTest attribute that registers an ITestFilter implementation (AllowMultiple = false). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterResult: Readonly struct with Run, Drop, and Skip(reason) decisions returned from ITestFilter.Filter(). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• ITestHostHandle: Experimental MTP interface representing the lifecycle of a custom-launched test host (exposes WaitForExitAsync, ExitCode, HasExited, Terminate, optional Identifier). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• ITestHostLauncher: Experimental MTP extension point that replaces Process.Start for launching the out-of-process test host (e.g. for packaged Windows apps). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• Microsoft.Testing.Extensions.PackagedApp: Experimental MTP extension (1.0.0-alpha) for deploying and launching packaged Windows apps (UWP / WinUI) via ITestHostLauncher. Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• VideoRecorder: Experimental MTP extension (1.0.0-alpha) for continuous screen recording via ffmpeg with per-test clip slicing. Introduced in PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377.

Changes Analyzed:

• Reviewed ~38 commits from 2026-06-23 to 2026-06-30
• Analyzed 4 merged PRs with new user-facing API or features: Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896, Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377, Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454, Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463
• Remaining commits were dependency bumps, internal refactors, perf improvements, and test additions with no new user-facing terminology

Related Changes:

• PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896: Add ITestFilter / [TestFilterProvider] for programmatic test filtering
• PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377: Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP
• PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454: Add generic ITestHostLauncher extension point + PackagedApp reference extension
• PR Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463: Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) — no new user-facing terms; internal protocol change

🤖 Automated content by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Glossary Maintainer workflow. · 564.4 AIC · ⌖ 25.5 AIC · ⊞ 43.7K · [◷]( · ◷)

Add this agentic workflows to your repo

To install this agentic workflow, run

gh aw add githubnext/agentics/workflows/glossary-maintainer.md@main

• expires on Jul 2, 2026, 6:02 AM UTC

[Copilot]

Pull request overview

Updates the documentation glossary in docs/ to capture newly introduced user-facing MSTest filtering APIs and experimental Microsoft.Testing.Platform (MTP) extension points (plus new extension packages).

Changes:

• Adds glossary entries for MSTest programmatic filtering: ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult.
• Adds glossary entries for MTP host-launch extensibility: ITestHostLauncher, ITestHostHandle, and the Microsoft.Testing.Extensions.PackagedApp extension.
• Adds a glossary entry for the Microsoft.Testing.Extensions.VideoRecorder extension and its CLI options.

Show a summary per file

File	Description
docs/glossary.md	Adds new glossary terms for recent MSTest filtering APIs and experimental MTP host-launch / video-recording extensions.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 4
• Review effort level: Low

[Amaury Levé (Evangelink)]

Note

🤖 Automated review by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Expert Code Review workflow. To request a follow-up action, reply by tagging @copilot directly.

This is a documentation-only PR (one file: docs/glossary.md). All 22 review dimensions that apply to code are N/A. The applicable dimension is #17 Documentation Accuracy.

Three NIT-level factual errors were found by cross-referencing the glossary entries against the source files; they are captured as inline comments above. One advisory observation is listed below.

#	Dimension	Verdict
17	Documentation Accuracy	🟡 3 NITs (inline)

✅ All other dimensions N/A (docs-only change).

---

Advisory — Missing [Experimental("MSTESTEXP")] disclosure for MSTest filtering types

The four new MSTest entries (ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult) are all annotated with [Experimental("MSTESTEXP", UrlFormat = "(aka.ms/redacted) in their source files. Consumers must suppress or acknowledge this diagnostic to use them (e.g. #pragma warning disable MSTESTEXPor[assembly: System.Diagnostics.CodeAnalysis.Experimental("MSTESTEXP")]`).

The parallel MTP entries (ITestHostHandle, ITestHostLauncher, etc.) consistently note [Experimental("TPEXP")]; omitting the equivalent disclosure for the MSTest entries is an inconsistency that could catch users off guard.

No action is strictly required (the experimental warning is surfaced at compile time anyway), but adding a note like "[Experimental("MSTESTEXP")] — suppress with #pragma warning disable MSTESTEXP" to the four MSTest entries would make the glossary more useful as a quick reference.

---

Summary of inline NITs (no blocking or major issues)

• Lines 141 & 145 — ITestHostHandle / ITestHostLauncher namespace should be Microsoft.Testing.Platform.Extensions.TestHostControllers, not Microsoft.Testing.Platform
• Line 141 — Identifier description ("intentionally not a numeric process id") contradicts the source, which explicitly names a process id as a valid value
• Line 315 — TestFilterResult.Skip says "Ignored" (should be "Skipped") and conflates ArgumentNullException (null) with ArgumentException (empty/whitespace)

[Amaury Levé (Evangelink)]

Glossary Updates

Scan Type: Full scan (weekly — Monday 2026-06-30, covering last 7 days)

Terms Added:

• ITestFilter: New MSTest interface for programmatic test filtering, evaluated before any type is loaded. Registered via [assembly: TestFilterProvider]. Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterContext: Context object passed to ITestFilter.Filter() exposing test metadata without type-loading (categories, traits, name, namespace, etc.). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterProvider: Assembly-level MSTest attribute that registers an ITestFilter implementation (AllowMultiple = false). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterResult: Readonly struct with Run, Drop, and Skip(reason) decisions returned from ITestFilter.Filter(). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• ITestHostHandle: Experimental MTP interface representing the lifecycle of a custom-launched test host (exposes WaitForExitAsync, ExitCode, HasExited, Terminate, optional Identifier). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• ITestHostLauncher: Experimental MTP extension point that replaces Process.Start for launching the out-of-process test host (e.g. for packaged Windows apps). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• Microsoft.Testing.Extensions.PackagedApp: Experimental MTP extension (1.0.0-alpha) for deploying and launching packaged Windows apps (UWP / WinUI) via ITestHostLauncher. Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• VideoRecorder: Experimental MTP extension (1.0.0-alpha) for continuous screen recording via ffmpeg with per-test clip slicing. Introduced in PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377.

Changes Analyzed:

• Reviewed ~38 commits from 2026-06-23 to 2026-06-30
• Analyzed 4 merged PRs with new user-facing API or features: Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896, Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377, Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454, Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463
• Remaining commits were dependency bumps, internal refactors, perf improvements, and test additions with no new user-facing terminology

Related Changes:

• PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896: Add ITestFilter / [TestFilterProvider] for programmatic test filtering
• PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377: Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP
• PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454: Add generic ITestHostLauncher extension point + PackagedApp reference extension
• PR Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463: Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) — no new user-facing terms; internal protocol change

🤖 Automated content by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Glossary Maintainer workflow. · 564.4 AIC · ⌖ 25.5 AIC · ⊞ 43.7K · [◷]( · ◷)

Add this agentic workflows to your repo

To install this agentic workflow, run

gh aw add githubnext/agentics/workflows/glossary-maintainer.md@main

• expires on Jul 2, 2026, 6:02 AM UTC

[Copilot]

Pull request overview

Updates the documentation glossary in docs/ to capture newly introduced user-facing MSTest filtering APIs and experimental Microsoft.Testing.Platform (MTP) extension points (plus new extension packages).

Changes:

• Adds glossary entries for MSTest programmatic filtering: ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult.
• Adds glossary entries for MTP host-launch extensibility: ITestHostLauncher, ITestHostHandle, and the Microsoft.Testing.Extensions.PackagedApp extension.
• Adds a glossary entry for the Microsoft.Testing.Extensions.VideoRecorder extension and its CLI options.

Show a summary per file

File	Description
docs/glossary.md	Adds new glossary terms for recent MSTest filtering APIs and experimental MTP host-launch / video-recording extensions.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 4
• Review effort level: Low

[Amaury Levé (Evangelink)]

Note

🤖 Automated review by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Expert Code Review workflow. To request a follow-up action, reply by tagging @copilot directly.

This is a documentation-only PR (one file: docs/glossary.md). All 22 review dimensions that apply to code are N/A. The applicable dimension is #17 Documentation Accuracy.

Three NIT-level factual errors were found by cross-referencing the glossary entries against the source files; they are captured as inline comments above. One advisory observation is listed below.

#	Dimension	Verdict
17	Documentation Accuracy	🟡 3 NITs (inline)

✅ All other dimensions N/A (docs-only change).

---

Advisory — Missing [Experimental("MSTESTEXP")] disclosure for MSTest filtering types

The four new MSTest entries (ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult) are all annotated with [Experimental("MSTESTEXP", UrlFormat = "(aka.ms/redacted) in their source files. Consumers must suppress or acknowledge this diagnostic to use them (e.g. #pragma warning disable MSTESTEXPor[assembly: System.Diagnostics.CodeAnalysis.Experimental("MSTESTEXP")]`).

The parallel MTP entries (ITestHostHandle, ITestHostLauncher, etc.) consistently note [Experimental("TPEXP")]; omitting the equivalent disclosure for the MSTest entries is an inconsistency that could catch users off guard.

No action is strictly required (the experimental warning is surfaced at compile time anyway), but adding a note like "[Experimental("MSTESTEXP")] — suppress with #pragma warning disable MSTESTEXP" to the four MSTest entries would make the glossary more useful as a quick reference.

---

Summary of inline NITs (no blocking or major issues)

• Lines 141 & 145 — ITestHostHandle / ITestHostLauncher namespace should be Microsoft.Testing.Platform.Extensions.TestHostControllers, not Microsoft.Testing.Platform
• Line 141 — Identifier description ("intentionally not a numeric process id") contradicts the source, which explicitly names a process id as a valid value
• Line 315 — TestFilterResult.Skip says "Ignored" (should be "Skipped") and conflates ArgumentNullException (null) with ArgumentException (empty/whitespace)

[Amaury Levé (Evangelink)]

Glossary Updates

Scan Type: Full scan (weekly — Monday 2026-06-30, covering last 7 days)

Terms Added:

• ITestFilter: New MSTest interface for programmatic test filtering, evaluated before any type is loaded. Registered via [assembly: TestFilterProvider]. Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterContext: Context object passed to ITestFilter.Filter() exposing test metadata without type-loading (categories, traits, name, namespace, etc.). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterProvider: Assembly-level MSTest attribute that registers an ITestFilter implementation (AllowMultiple = false). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• TestFilterResult: Readonly struct with Run, Drop, and Skip(reason) decisions returned from ITestFilter.Filter(). Introduced in PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896.
• ITestHostHandle: Experimental MTP interface representing the lifecycle of a custom-launched test host (exposes WaitForExitAsync, ExitCode, HasExited, Terminate, optional Identifier). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• ITestHostLauncher: Experimental MTP extension point that replaces Process.Start for launching the out-of-process test host (e.g. for packaged Windows apps). Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• Microsoft.Testing.Extensions.PackagedApp: Experimental MTP extension (1.0.0-alpha) for deploying and launching packaged Windows apps (UWP / WinUI) via ITestHostLauncher. Introduced in PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454.
• VideoRecorder: Experimental MTP extension (1.0.0-alpha) for continuous screen recording via ffmpeg with per-test clip slicing. Introduced in PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377.

Changes Analyzed:

• Reviewed ~38 commits from 2026-06-23 to 2026-06-30
• Analyzed 4 merged PRs with new user-facing API or features: Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896, Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377, Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454, Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463
• Remaining commits were dependency bumps, internal refactors, perf improvements, and test additions with no new user-facing terminology

Related Changes:

• PR Add ITestFilter / [TestFilterProvider] for programmatic test filtering (#8894) #8896: Add ITestFilter / [TestFilterProvider] for programmatic test filtering
• PR Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP #9377: Add experimental Microsoft.Testing.Extensions.VideoRecorder (preview) extension for MTP
• PR Add generic ITestHostLauncher extension point + PackagedApp reference extension #9454: Add generic ITestHostLauncher extension point + PackagedApp reference extension
• PR Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) #9463: Forward Azure DevOps logging commands over the dotnet test pipe (multi-assembly) — no new user-facing terms; internal protocol change

🤖 Automated content by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Glossary Maintainer workflow. · 564.4 AIC · ⌖ 25.5 AIC · ⊞ 43.7K · [◷]( · ◷)

Add this agentic workflows to your repo

To install this agentic workflow, run

gh aw add githubnext/agentics/workflows/glossary-maintainer.md@main

• expires on Jul 2, 2026, 6:02 AM UTC

[Copilot]

Pull request overview

Updates the documentation glossary in docs/ to capture newly introduced user-facing MSTest filtering APIs and experimental Microsoft.Testing.Platform (MTP) extension points (plus new extension packages).

Changes:

• Adds glossary entries for MSTest programmatic filtering: ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult.
• Adds glossary entries for MTP host-launch extensibility: ITestHostLauncher, ITestHostHandle, and the Microsoft.Testing.Extensions.PackagedApp extension.
• Adds a glossary entry for the Microsoft.Testing.Extensions.VideoRecorder extension and its CLI options.

Show a summary per file

File	Description
docs/glossary.md	Adds new glossary terms for recent MSTest filtering APIs and experimental MTP host-launch / video-recording extensions.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 4
• Review effort level: Low

[Amaury Levé (Evangelink)]

Note

🤖 Automated review by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Expert Code Review workflow. To request a follow-up action, reply by tagging @copilot directly.

This is a documentation-only PR (one file: docs/glossary.md). All 22 review dimensions that apply to code are N/A. The applicable dimension is #17 Documentation Accuracy.

Three NIT-level factual errors were found by cross-referencing the glossary entries against the source files; they are captured as inline comments above. One advisory observation is listed below.

#	Dimension	Verdict
17	Documentation Accuracy	🟡 3 NITs (inline)

✅ All other dimensions N/A (docs-only change).

---

Advisory — Missing [Experimental("MSTESTEXP")] disclosure for MSTest filtering types

The four new MSTest entries (ITestFilter, TestFilterContext, TestFilterProvider, TestFilterResult) are all annotated with [Experimental("MSTESTEXP", UrlFormat = "(aka.ms/redacted) in their source files. Consumers must suppress or acknowledge this diagnostic to use them (e.g. #pragma warning disable MSTESTEXPor[assembly: System.Diagnostics.CodeAnalysis.Experimental("MSTESTEXP")]`).

The parallel MTP entries (ITestHostHandle, ITestHostLauncher, etc.) consistently note [Experimental("TPEXP")]; omitting the equivalent disclosure for the MSTest entries is an inconsistency that could catch users off guard.

No action is strictly required (the experimental warning is surfaced at compile time anyway), but adding a note like "[Experimental("MSTESTEXP")] — suppress with #pragma warning disable MSTESTEXP" to the four MSTest entries would make the glossary more useful as a quick reference.

---

Summary of inline NITs (no blocking or major issues)

• Lines 141 & 145 — ITestHostHandle / ITestHostLauncher namespace should be Microsoft.Testing.Platform.Extensions.TestHostControllers, not Microsoft.Testing.Platform
• Line 141 — Identifier description ("intentionally not a numeric process id") contradicts the source, which explicitly names a process id as a valid value
• Line 315 — TestFilterResult.Skip says "Ignored" (should be "Skipped") and conflates ArgumentNullException (null) with ArgumentException (empty/whitespace)