Unify pipeline builder configuration for v4

[thomhurst]

Summary

• replace the split pipeline configuration paths with immutable PipelineBuilder.ConfigureOptions
• fold scheduler and secret masking settings into PipelineOptions and remove orphan options registrations/factories
• expose PipelineBuilder.Logging and migrate current docs, examples, and tests

Validation

• core solution Release build: 0 warnings, 0 errors
• core test-filter Release build: 0 errors
• all focused option, scheduler, secret masking, documentation, validation, and concurrency suites passed
• Testing, DocumentationSnippets, TrimAotSmoke, and Examples projects built successfully
• targeted formatting completed

Closes #4226

Summary by CodeRabbit

• New Features

  • Added unified pipeline options configuration.
  • Added pipeline-builder logging configuration.
  • Added nested concurrency and secret-masking settings.
  • Added configurable concurrency notification timeout.

• Breaking Changes

  • Removed legacy pipeline, category-filtering, and log-level configuration methods.
  • Scheduler and secret-masking settings now use nested pipeline options.
  • Updated pipeline failure and module classification terminology.
  • Removed several deprecated data, security, PowerShell, and scheduler APIs.

• Documentation

  • Updated configuration examples and pipeline guidance for the new APIs.

[coderabbitai]

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📝 Walkthrough

Walkthrough

The PR unifies pipeline configuration under ConfigureOptions, adds PipelineBuilder.Logging, nests concurrency and secret settings in PipelineOptions, removes obsolete registrations and APIs, updates validation and scheduler wiring, and refreshes documentation, public API records, examples, and tests.

Changes

V4 configuration model

Layer / File(s)	Summary
Builder configuration and logging src/ModularPipelines/PipelineBuilder.cs, src/ModularPipelines/DependencyInjection/*, src/ModularPipelines/Console/*	PipelineBuilder now exposes ConfigureOptions and Logging. Pipeline options and logging provider handling use the consolidated builder configuration.
Nested options, scheduler wiring, and validation src/ModularPipelines/Options/*, src/ModularPipelines/Engine/*, src/ModularPipelines/Validation/*	Concurrency settings move under PipelineOptions.Concurrency. Secret settings move under PipelineOptions.Secrets. Secret properties become init-only. Validation uses dedicated helpers, including checks for notification timeout and HTTP resilience settings.
Call sites and documentation docs/docs/how-to/*, src/ModularPipelines.Build/*, src/ModularPipelines.Examples/*, RELEASE_NOTES_V4.md	Examples and documentation use ConfigureOptions, category properties, nested secret options, and builder.Logging.
API records and tests src/ModularPipelines/PublicAPI.*, test/ModularPipelines.*/*	Public API records reflect added and removed members. Tests cover options identity, logging providers, nested validation, scheduler wiring, category filters, secret masking, and updated call sites.

Estimated code review effort: 4 (Complex) | ~60 minutes

Merge Risk: 🟡 Moderate · up to 9a2b4

The unified builder configuration does not reliably honor ClearLogProviders, so consumers may receive unexpected default logging providers and output. Related documentation and test-helper behavior remain inconsistent, making the PR not merge-ready until the provider assembly issue is fixed or explicitly accepted.

Poem

A rabbit checks the options trail
ConfigureOptions sets the sail
Logging providers now align
Nested secrets keep their line
Tests follow each changed gate
V4 records the updated state

🚥 Pre-merge checks | ✅ 3 | ❌ 2

❌ Failed checks (2 warnings)

Check name	Status	Explanation	Resolution
Out of Scope Changes check	⚠️ Warning	The PR includes changes outside [#4226], including removal of checksum, hasher, Base64, ZIP, PowerShell option, and HashType public APIs, plus related dependency-registration changes and `ModuleResu…	Remove the unrelated API and model changes from this PR, or link issues that explicitly require them. Keep this PR limited to the unified pipeline configuration model and its required documentation, tests, and implementation changes.
Docstring Coverage	⚠️ Warning	Docstring coverage is 4.78% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 209 functions across 54 files. (2 skipped:…	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the primary change: unifying the v4 pipeline builder configuration model.
Linked Issues check	✅ Passed	The PR satisfies the coding objectives in [#4226]. It adds ConfigureOptions and Logging, folds scheduler and secret masking settings into PipelineOptions, removes orphan option registrations and…

Full details: Linked Issues check

Explanation

The PR satisfies the coding objectives in [#4226]. It adds ConfigureOptions and Logging, folds scheduler and secret masking settings into PipelineOptions, removes orphan option registrations and PipelineOptionsFactory, and removes duplicate builder methods.

Full details: Out of Scope Changes check

Explanation

The PR includes changes outside [#4226], including removal of checksum, hasher, Base64, ZIP, PowerShell option, and HashType public APIs, plus related dependency-registration changes and ModuleResult property renames.

Full details: Docstring Coverage

Explanation

Docstring coverage is 4.78% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 209 functions across 54 files. (2 skipped: 2 unsupported.)

✨ Finishing Touches 💡 1

📝 Generate docstrings 💡

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch issue-4226-builder-config

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[greptile-apps]

Greptile Summary

The PR consolidates pipeline configuration under immutable PipelineOptions and exposes a dedicated builder logging surface.

• Moves concurrency and secret-masking settings into nested pipeline options.
• Updates runtime composition, validation, documentation, examples, and tests for the unified configuration API.
• Adds logging-provider composition logic to preserve or remove framework defaults according to builder logging configuration.

Confidence Score: 4/5

The PR is not yet safe to merge because clearing providers through the standard builder.Services.AddLogging path still leaves the framework Spectre provider active.

The builder stores framework logging defaults separately from ordinary service registrations, while final provider removal consults only the dedicated logging collection; consequently, builder.Services.AddLogging(logging => logging.ClearProviders()) cannot remove the default Spectre provider.

Files Needing Attention: src/ModularPipelines/PipelineBuilder.cs

Important Files Changed

Filename	Overview
src/ModularPipelines/PipelineBuilder.cs	Introduces immutable option configuration and a separate logging builder, then composes pipeline, application, logging, and plugin services into the final host.
src/ModularPipelines/Options/PipelineOptions.cs	Consolidates scheduler, concurrency, and secret-masking configuration into the primary pipeline options snapshot.
src/ModularPipelines/DependencyInjection/DependencyInjectionSetup.cs	Updates core registrations to consume the consolidated pipeline options and revised logging composition.
src/ModularPipelines/Engine/ModuleScheduler.cs	Reads scheduler behavior from the nested concurrency options introduced by the unified configuration model.
test/ModularPipelines.UnitTests/Options/PipelineOptionsTests.cs	Adds focused coverage for immutable options, provider clearing through the dedicated logging surface, validators, and custom logger factories.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart LR
    A[Create PipelineBuilder] --> B[Collect pipeline options]
    A --> C[Collect application services]
    A --> D[Collect logging configuration]
    B --> E[Build host]
    C --> E
    D --> E
    E --> F[Apply plugin services]
    F --> G[Validate pipeline]
    G --> H[Run modules]

Loading

_{Reviews (27): Last reviewed commit: "fix(logging): synchronize console fallba..." | Re-trigger Greptile}

[chatgpt-codex-connector]

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[thomhurst]

Addressed all unresolved review findings in 12d9f34519: final-host ClearProviders() semantics are preserved, custom PipelineOptions validators execute against the immutable snapshot, and both behaviors have regressions. Validation: PipelineOptionsTests 22/22; core Release build 0 warnings/errors.

[claude]

Code Review

Reviewed the v4 builder-configuration unification (PipelineBuilder.ConfigureOptions, folding scheduler/secret-masking settings into PipelineOptions, and the new PipelineBuilder.Logging surface) at head 12d9f34519c39d6c37e87b6199bc46aea43ad00e.

Verified previously-reported issues are fixed:

• Greptile's "provider clearing targets wrong collection" finding: PipelineBuilder now snapshots the default logging descriptors/providers at construction (_defaultLoggingDescriptors, _defaultLoggingProviderDescriptors) and, in BuildPipelineAsync, detects whether Logging.ClearProviders() removed them from the builder's own collection, then applies the equivalent removal to the final host services collection before copying over user-added descriptors (PipelineBuilder.cs:60-67, 331-343). This correctly removes the Spectre provider from the final host when ClearProviders() is used, backed by PipelineBuilderLoggingCanClearFrameworkProviders.
• Codex's "preserve registered pipeline option validators" finding: the final IOptions<PipelineOptions> snapshot is now produced by FixedOptions<PipelineOptions>, which pulls IValidateOptions<PipelineOptions> from DI and validates lazily on first access, throwing OptionsValidationException on failure (PipelineBuilder.cs:354-363, 645-682). Backed by PipelineBuilderPreservesRegisteredPipelineOptionsValidators.

New issue introduced by the ClearProviders fix:

PipelineBuilder.BuildPipelineAsync's clear-detection logic operates on all ILoggerProvider registrations in the final host collection, not just the framework's default Spectre provider:

DependencyInjectionSetup.Initialize(services); // also registers BuildSystemLogIssueLoggerProvider (RegisterBuildSystemServices)
...
if (!_defaultLoggingProviderDescriptors.All(_services.Contains))
{
    services.RemoveAll<ILoggerProvider>(); // wipes every ILoggerProvider, not just the tracked defaults
}

(src/ModularPipelines/PipelineBuilder.cs:327-343)

DependencyInjectionSetup.Initialize registers BuildSystemLogIssueLoggerProvider (RegisterBuildSystemServices, DependencyInjectionSetup.cs:316-333) directly on the host services collection — it's unrelated to the builder's own _services/_defaultLoggingProviderDescriptors snapshot, which only ever tracked the Spectre console provider. When a consumer follows the new documented pattern in docs/docs/how-to/logging.md:

builder.Logging.ClearProviders().AddConsole().SetMinimumLevel(LogLevel.Information);

the RemoveAll<ILoggerProvider>() call removes BuildSystemLogIssueLoggerProvider along with Spectre, silently disabling CI issue-annotation output (e.g. GitHub Actions ::error::/::warning::, Azure DevOps ##vso[task.logissue]) any time a user swaps logging providers — a behavior completely unrelated to what ClearProviders() is meant to control. The new regression test PipelineBuilderLoggingCanClearFrameworkProviders (test/ModularPipelines.UnitTests/Options/PipelineOptionsTests.cs) asserts providers.HasSingleItem() after ClearProviders().AddProvider(...), which actually locks in this behavior rather than catching it, since a correct implementation would still have BuildSystemLogIssueLoggerProvider present alongside the user's provider.

Suggested fix: track the framework's default logging provider descriptors on the final host collection directly (e.g. capture the ILoggerProvider descriptors added specifically by RegisterDefaultLogging inside Initialize, rather than diffing against the pre-Initialize _services snapshot), and only remove those specific descriptors from services when ClearProviders() was invoked — leaving other framework-registered ILoggerProviders (like BuildSystemLogIssueLoggerProvider) untouched. Alternatively, register BuildSystemLogIssueLoggerProvider in a way that's exempt from the "is this a default logging provider" comparison (e.g. via a marker/wrapper type) so RemoveAll<ILoggerProvider>() isn't the right removal primitive here — a more targeted services.Where(d => _trackedDefaultProviderTypes.Contains(...)) removal would avoid collateral damage to non-default providers registered elsewhere in DI.

Everything else in the migration (folding SchedulerOptions/ConcurrencyOptions/HttpResilienceOptions validation into the consolidated OptionsValidator, SecretMaskingOptions becoming init-only and nested under PipelineOptions.Secrets, removal of PipelineOptionsFactory/ConfigurePipelineOptions, and the doc/example/test call-site updates) is consistent and I found no dangling references to the removed types.

[thomhurst]

Rebased onto current main and fixed the Ubuntu Shellcheck test failure caused by clearing framework logging providers. When the default Spectre provider is removed, the builder now substitutes a no-op ISpectreConsoleLoggerControl, preserving the user's exact ILoggerProvider set without MEL.Spectre's Sequence contains no elements failure. Added an execution regression to PipelineBuilderLoggingCanClearFrameworkProviders. Validation: PipelineOptionsTests 22/22; ShellcheckOptionsTests 3/3; ModularPipelines.slnx Release build 0 warnings/errors; scoped format verification passed.

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Reviewed commit: 38c93ae94a

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[claude]

Code Review

Reviewed head 38c93ae94a5ef183882e7380c900477a167be878 of the v4 builder-configuration unification (PipelineBuilder.ConfigureOptions, folded scheduler/secret-masking settings, new PipelineBuilder.Logging surface).

Previously-reported issue is still unresolved.

In my prior review (at 12d9f34519c39d6c37e87b6199bc46aea43ad00e) I flagged that the ClearProviders() handling in BuildPipelineAsync removes every ILoggerProvider from the final host collection, not just the framework's default Spectre provider — collaterally wiping BuildSystemLogIssueLoggerProvider. The latest commit (fix(logging): support cleared providers) adds a NoopSpectreConsoleLoggerControl substitution but does not change the scope of the removal:

ModularPipelines/src/ModularPipelines/PipelineBuilder.cs

Lines 332 to 342 in 38c93ae

	services.AddSingleton(new PipelineWorkingDirectory(_environment.WorkingDirectory));
	DependencyInjectionSetup.Initialize(services);
	services.Configure<ModuleCacheOptions>(options =>
	options.WorkingDirectory = _environment.WorkingDirectory);
	var defaultLoggingProvidersRemoved =
	!_defaultLoggingProviderDescriptors.All(_services.Contains);
	if (defaultLoggingProvidersRemoved)
	{
	services.RemoveAll<ILoggerProvider>();
	}

DependencyInjectionSetup.Initialize(services); // registers BuildSystemLogIssueLoggerProvider (RegisterBuildSystemServices)
...
var defaultLoggingProvidersRemoved =
    !_defaultLoggingProviderDescriptors.All(_services.Contains);
if (defaultLoggingProvidersRemoved)
{
    services.RemoveAll<ILoggerProvider>(); // still wipes every ILoggerProvider, including BuildSystemLogIssueLoggerProvider
}

DependencyInjectionSetup.Initialize registers BuildSystemLogIssueLoggerProvider directly on the host services collection (RegisterBuildSystemServices, DependencyInjectionSetup.cs:316-333), unrelated to the builder's own _services/_defaultLoggingProviderDescriptors snapshot (which only ever tracked the Spectre console provider added via RegisterDefaultLogging). So any consumer who follows the newly-documented pattern in docs/docs/how-to/logging.md (builder.Logging.ClearProviders().AddConsole()...) will silently lose CI issue-annotation output (::error::/::warning:: on GitHub Actions, ##vso[task.logissue] on Azure DevOps) — a behavior completely unrelated to what ClearProviders() is meant to control.

The regression test added for this fix still locks in the buggy behavior rather than catching it:

ModularPipelines/test/ModularPipelines.UnitTests/Options/PipelineOptionsTests.cs

Lines 307 to 324 in 38c93ae

	public async Task PipelineBuilderLoggingCanClearFrameworkProviders()
	{
	var loggerProvider = new TestLoggerProvider();
	var builder = TestPipelineBuilder.Create()
	.AddModule<OptionsTestModule>();
	builder.Logging.ClearProviders().AddProvider(loggerProvider);
	await using var pipeline = await builder.BuildAsync();
	var providers = pipeline.Services.GetServices<ILoggerProvider>().ToArray();
	var summary = await pipeline.RunAsync();
	using (Assert.Multiple())
	{
	await Assert.That(providers).HasSingleItem();
	await Assert.That(providers[0]).IsSameReferenceAs(loggerProvider);
	await Assert.That(summary.Status).IsEqualTo(ModuleStatus.Succeeded);
	}
	}

builder.Logging.ClearProviders().AddProvider(loggerProvider);
...
await Assert.That(providers).HasSingleItem();

A correct implementation would still have BuildSystemLogIssueLoggerProvider present alongside the user's provider, so providers should contain two entries here, not one.

Suggested fix (unchanged from prior review): track the framework's default logging provider descriptors against the final host collection directly — capture the ILoggerProvider descriptors added specifically by RegisterDefaultLogging inside Initialize, and only remove those specific descriptors from services when ClearProviders() was invoked, leaving other framework-registered ILoggerProviders (like BuildSystemLogIssueLoggerProvider) untouched. A targeted services.RemoveAll(d => d.ServiceType == typeof(ILoggerProvider) && _defaultLoggingProviderTypes.Contains(d.ImplementationType))-style removal (reusing the _defaultLoggingProviderTypes set already built at PipelineBuilder.cs:69-70) would avoid the collateral damage without needing a broader redesign.

Everything else in this large refactor (folding SchedulerOptions/ConcurrencyOptions/HttpResilienceOptions validation into the consolidated OptionsValidator, SecretMaskingOptions becoming init-only under PipelineOptions.Secrets, removal of PipelineOptionsFactory/ConfigurePipelineOptions, replacement of RunOnlyCategories/IgnoreCategories/SetLogLevel builder methods with the immutable ConfigureOptions snapshot, and the doc/example/test call-site updates) looks consistent, and I found no dangling references to the removed types or new issues introduced since the last review.

[coderabbitai]

Actionable comments posted: 1

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Inline comments:
In `@docs/docs/how-to/categories.md`:
- Line 38: Update the category guidance around ConfigureOptions and
PipelineOptions to remove references to the deleted RunOnlyCategories and
IgnoreCategories fluent methods, while preserving the examples that configure
RunOnlyCategories through ConfigureOptions.

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---

ℹ️ Review info

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Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: e2314bb3-dc1c-4126-a6ae-3c7e61662069

📥 Commits

Reviewing files that changed from the base of the PR and between c73cf11 and 38c93ae.

📒 Files selected for processing (70)

• RELEASE_NOTES_V4.md
• docs/docs/how-to/categories.md
• docs/docs/how-to/command-line.md
• docs/docs/how-to/console-progress.md
• docs/docs/how-to/generate-private-cli-integration.md
• docs/docs/how-to/logging.md
• docs/docs/how-to/pipeline-host.md
• docs/docs/how-to/pipeline-modes.md
• docs/docs/how-to/retry-policy.md
• docs/docs/how-to/run-reports.md
• docs/docs/how-to/secrets.md
• docs/docs/how-to/timeouts.md
• src/ModularPipelines.Build/Program.cs
• src/ModularPipelines.Examples/Program.cs
• src/ModularPipelines.Testing/ModuleTester.cs
• src/ModularPipelines/Console/NoopSpectreConsoleLoggerControl.cs
• src/ModularPipelines/DependencyInjection/DependencyInjectionSetup.cs
• src/ModularPipelines/Engine/ModuleScheduler.cs
• src/ModularPipelines/Engine/ModuleSchedulerFactory.cs
• src/ModularPipelines/Engine/OptionsProvider.cs
• src/ModularPipelines/Extensions/PipelineBuilderExtensions.cs
• src/ModularPipelines/Options/ConcurrencyOptions.cs
• src/ModularPipelines/Options/PipelineOptions.cs
• src/ModularPipelines/Options/PipelineOptionsFactory.cs
• src/ModularPipelines/Options/SchedulerOptions.cs
• src/ModularPipelines/Options/SecretMaskingOptions.cs
• src/ModularPipelines/Options/Validators/ConcurrencyOptionsValidator.cs
• src/ModularPipelines/Options/Validators/HttpResilienceOptionsValidator.cs
• src/ModularPipelines/Pipeline.cs
• src/ModularPipelines/PipelineBuilder.cs
• src/ModularPipelines/Validation/OptionsValidator.cs
• test/ModularPipelines.DocumentationSnippets/CurrentApiSnippets.cs
• test/ModularPipelines.TestHelpers/TestPipelineBuilder.cs
• test/ModularPipelines.TrimAotSmoke/Program.cs
• test/ModularPipelines.UnitTests/Api/RootNamespaceGoldenPathCompileFixture.cs
• test/ModularPipelines.UnitTests/Artifacts/ArtifactContractTests.cs
• test/ModularPipelines.UnitTests/Attributes/DynamicDependencyIntegrationTests.cs
• test/ModularPipelines.UnitTests/Attributes/LifecycleEventIntegrationTests.cs
• test/ModularPipelines.UnitTests/Caching/ModuleCacheTests.cs
• test/ModularPipelines.UnitTests/CommandLine/PipelineCommandLineTests.cs
• test/ModularPipelines.UnitTests/Console/ConsoleWriterTests.cs
• test/ModularPipelines.UnitTests/Console/OutputCoordinatorDeferredFlushTests.cs
• test/ModularPipelines.UnitTests/Context/HttpTests.cs
• test/ModularPipelines.UnitTests/Dependencies/CategoryFilterDependencyTests.cs
• test/ModularPipelines.UnitTests/Engine/DependencyGraphExporterTests.cs
• test/ModularPipelines.UnitTests/Engine/ModuleExecutorLoggingTests.cs
• test/ModularPipelines.UnitTests/Engine/ModuleSchedulerConfigurationTests.cs
• test/ModularPipelines.UnitTests/Engine/ModuleSchedulerDisposalTests.cs
• test/ModularPipelines.UnitTests/Engine/ModuleSchedulerDynamicCycleTests.cs
• test/ModularPipelines.UnitTests/Engine/PipelineOutputCoordinatorTests.cs
• test/ModularPipelines.UnitTests/Engine/PipelineProgressTests.cs
• test/ModularPipelines.UnitTests/Engine/RunReportTests.cs
• test/ModularPipelines.UnitTests/Execution/AlwaysRunTests.cs
• test/ModularPipelines.UnitTests/Execution/ConcurrencyOptionsTests.cs
• test/ModularPipelines.UnitTests/Execution/EngineCancellationTokenTests.cs
• test/ModularPipelines.UnitTests/Execution/ExecutionHintTests.cs
• test/ModularPipelines.UnitTests/Execution/FailedPipelineTests.cs
• test/ModularPipelines.UnitTests/Execution/ModuleHistoryTests.cs
• test/ModularPipelines.UnitTests/Execution/ModuleTimeoutTests.cs
• test/ModularPipelines.UnitTests/Execution/RetryTests.cs
• test/ModularPipelines.UnitTests/Execution/RunnableCategoryTests.cs
• test/ModularPipelines.UnitTests/Logging/ConfigurationSectionSecretMaskingTests.cs
• test/ModularPipelines.UnitTests/Logging/ModuleLoggerTests.cs
• test/ModularPipelines.UnitTests/Logging/SecretMaskingPatternTests.cs
• test/ModularPipelines.UnitTests/Logging/SecretMaskingTests.cs
• test/ModularPipelines.UnitTests/Options/PipelineOptionsTests.cs
• test/ModularPipelines.UnitTests/Registration/PipelineBuilderRegistrationTests.cs
• test/ModularPipelines.UnitTests/Results/ResultsRepositoryTests.cs
• test/ModularPipelines.UnitTests/Tracing/TelemetryIntegrationTests.cs
• test/ModularPipelines.UnitTests/Validation/ValidationTests.cs

💤 Files with no reviewable changes (5)

• src/ModularPipelines/Options/Validators/HttpResilienceOptionsValidator.cs
• src/ModularPipelines/Engine/OptionsProvider.cs
• src/ModularPipelines/Options/SchedulerOptions.cs
• src/ModularPipelines/Options/PipelineOptionsFactory.cs
• src/ModularPipelines/Options/Validators/ConcurrencyOptionsValidator.cs

Included review availability: Your plan provides up to 4 included reviews per hour; 0 remain after this review.

[thomhurst]

Rebased onto merged #4257 and resolved the overlapping builder migration: creation-only LoadModularPipelinesAssemblies remains in PipelineBuilderSettings; mutable runtime configuration uses ConfigureOptions; PipelineBuilder remains non-disposable; logging/provider and options-validation fixes are preserved. Also fixed two stale disposable-builder tests and the category docs feedback. Validation: PipelineOptionsTests 22/22; ShellcheckOptionsTests 3/3; ModularPipelines.slnx Release build 0 warnings/errors.

[claude]

Review: Unify pipeline builder configuration for v4

I traced the new PipelineBuilder.BuildAsync() service-registration flow (constructor snapshot → Initialize(services) → default-provider removal → user-descriptor copy) end-to-end against DependencyInjectionSetup, plus the options-registration and dead-property changes in this PR. One high-confidence functional bug, one narrower edge case, and one cleanup opportunity survived verification.

1. services.RemoveAll<ILoggerProvider>() silently deletes BuildSystemLogIssueLoggerProvider, not just the default Spectre provider

src/ModularPipelines/PipelineBuilder.cs:342-347:

var defaultLoggingProvidersRemoved =
    !_defaultLoggingProviderDescriptors.All(_services.Contains);
if (defaultLoggingProvidersRemoved)
{
    services.RemoveAll<ILoggerProvider>();
}

_defaultLoggingProviderDescriptors/_defaultLoggingProviderTypes are captured in the constructor (PipelineBuilder.cs:65-75) from DependencyInjectionSetup.RegisterDefaultLogging(_services) alone — i.e. just the Spectre provider. But by the time this line runs against the final services collection, DependencyInjectionSetup.Initialize(services) (called at line 338, a few lines above) has already run RegisterBuildSystemServices, which does:

services.TryAddEnumerable(
    ServiceDescriptor.Singleton<ILoggerProvider, BuildSystemLogIssueLoggerProvider>());

BuildSystemLogIssueLoggerProvider has nothing to do with console rendering — it emits CI annotations (GitHub Actions ::error::, Azure DevOps task.logissue) for Warning/Error/Critical logs. RemoveAll<ILoggerProvider>() is untargeted, so any pipeline author who follows the documented pattern in docs/docs/how-to/logging.md:96-101 (builder.Logging.ClearProviders().AddProvider(...)/.AddConsole()) — the exact pattern the new PipelineBuilderLoggingCanClearFrameworkProviders test exercises — silently loses CI build-annotation output, with no warning or log. The new test doesn't catch this because it only asserts ILoggerProvider count == 1 and reference-equality to the custom provider; it never checks whether BuildSystemLogIssueLoggerProvider survived.

Why this happened / better approach: the removal is a blunt RemoveAll<T>() where a scoped removal was needed. The file already has the right filter three lines away in HasDefaultLoggingProvider (line 665-669) — it checks ImplementationType against _defaultLoggingProviderTypes. Reusing that same filter for removal (instead of introducing a second, inconsistent removal strategy) fixes the bug without a new pattern:

if (defaultLoggingProvidersRemoved)
{
    foreach (var descriptor in services.Where(d =>
                 d.ServiceType == typeof(ILoggerProvider)
                 && d.ImplementationType is { } t
                 && _defaultLoggingProviderTypes.Contains(t)).ToList())
    {
        services.Remove(descriptor);
    }
}

This is architecturally more correct because "clear the default providers" and "clear all providers" are different user intents that the current code conflates — the second call to Initialize(services) on the final collection means other framework-registered ILoggerProviders (present or future) get caught in the blast radius of any user customization.

2. HasDefaultLoggingProvider matches only by ImplementationType, so instance/factory-registered replacements aren't recognized

src/ModularPipelines/PipelineBuilder.cs:665-669:

private bool HasDefaultLoggingProvider(IServiceCollection services)
    => services.Any(descriptor =>
        descriptor.ServiceType == typeof(ILoggerProvider)
        && descriptor.ImplementationType is { } implementationType
        && _defaultLoggingProviderTypes.Contains(implementationType));

If a user (or plugin) clears default providers and re-adds Spectre-console logging via an instance- or factory-based registration (ImplementationType == null) rather than the generic-type pattern MEL.Spectre uses internally, HasDefaultLoggingProvider returns false even though a working console provider is present, so ISpectreConsoleLoggerControl gets needlessly replaced with NoopSpectreConsoleLoggerControl (line 358-363) — render-gate/suspend calls become no-ops while the real provider keeps rendering, risking interleaved console output.

This is narrower than #1 (it requires an atypical registration style), but it points at the same root cause: inferring "is the default logging setup intact" from ImplementationType identity is fragile. A more robust signal would be checking directly whether a real (non-Noop) ISpectreConsoleLoggerControl implementation is already registered in services, rather than indirectly inferring it from unrelated ILoggerProvider descriptors — that ties the no-op substitution to the actual thing it's protecting instead of a proxy for it.

3. EnableDetailedLogging/EnableTimingMetrics moved into ConcurrencyOptions but are still unused

src/ModularPipelines/Options/ConcurrencyOptions.cs:57,62 — these were relocated from the deleted SchedulerOptions as part of the options consolidation, but nothing in the codebase reads either property (only ConcurrencyOptionsTests.cs asserts their default values). Since this PR is already doing the work of consolidating scheduler settings into the unified options model, it's a good opportunity to either wire them up or drop them — otherwise they're dead configuration surface that looks actionable to consumers but silently does nothing.

Verified as addressed / not an issue

• builder.Services.Configure<SecretMaskingOptions>(...) no longer having any effect is intentional and documented in RELEASE_NOTES_V4.md:28-32 as part of the v4 migration, not a silent regression — no action needed there.
• The bulk of the diff (~70 files, mostly mechanical ConfigurePipelineOptions → ConfigureOptions renames across src/tests/docs) is internally consistent; no stray references to removed APIs (SchedulerOptions, SetLogLevel, RunOnlyCategories, IgnoreCategories, PipelineOptionsFactory, or the deleted validator classes) remain.
• Custom IValidateOptions<PipelineOptions> registrations and the FixedOptions<T> immutable-snapshot wiring are correctly threaded through IOptions/IOptionsSnapshot/IOptionsMonitor.

[thomhurst]

Rebased onto current main after #4266. Conflict resolution preserves the new AddValidator extension, keeps this PR's PipelineBuilder.ConfigureOptions as the single configuration API, and retains SchedulerOptions deletion. Validation: ModularPipelines.slnx Release 0 warnings/errors; PipelineOptionsTests 22/22; ShellcheckOptionsTests 3/3; PublicSurfaceLeakageTests 3/3; git diff --check passed. @claude please re-review current head 20b4143.

[claude]

Code Review

Reviewed head 20b4143ed2fc2826fc6e50473e2854ff9b9636df of the v4 builder-configuration unification (PipelineBuilder.ConfigureOptions, folded scheduler/secret-masking settings into PipelineOptions, new PipelineBuilder.Logging surface).

Previously-reported blocking issue is still unresolved after three rebases.

I (and Greptile, originally) have flagged this same defect across the last three reviewed heads (12d9f34519, 38c93ae94a, 50229aba26). The two most recent commits (fix(builder): align non-disposable tests, docs(categories): remove deleted methods) don't touch PipelineBuilder.cs, so the bug is unchanged at the current head:

ModularPipelines/src/ModularPipelines/PipelineBuilder.cs

Lines 341 to 347 in 20b4143

	var defaultLoggingProvidersRemoved =
	!_defaultLoggingProviderDescriptors.All(_services.Contains);
	if (defaultLoggingProvidersRemoved)
	{
	services.RemoveAll<ILoggerProvider>();
	}

var defaultLoggingProvidersRemoved =
    !_defaultLoggingProviderDescriptors.All(_services.Contains);
if (defaultLoggingProvidersRemoved)
{
    services.RemoveAll<ILoggerProvider>(); // still wipes every ILoggerProvider
}

_defaultLoggingProviderDescriptors/_defaultLoggingProviderTypes are captured in the constructor from DependencyInjectionSetup.RegisterDefaultLogging(_services) alone (just the Spectre console provider). But by the time this line runs against the final services collection, DependencyInjectionSetup.Initialize(services) (called a few lines above, PipelineBuilder.cs:338) has already run RegisterBuildSystemServices, which does:

services.TryAddEnumerable(
    ServiceDescriptor.Singleton<ILoggerProvider, BuildSystemLogIssueLoggerProvider>());

(DependencyInjectionSetup.cs:330-332, still present and called from Initialize before this point.)

BuildSystemLogIssueLoggerProvider emits CI build annotations (GitHub Actions ::error::/::warning::, Azure DevOps ##vso[task.logissue]) and has nothing to do with console rendering. Because the removal is an untargeted RemoveAll<ILoggerProvider>(), any pipeline author following the documented pattern in docs/docs/how-to/logging.md (builder.Logging.ClearProviders().AddProvider(...)/.AddConsole()) — exactly what the regression test PipelineBuilderLoggingCanClearFrameworkProviders (test/ModularPipelines.UnitTests/Options/PipelineOptionsTests.cs:307-324) exercises — silently loses CI issue-annotation output. That test still only asserts providers.HasSingleItem() and reference-equality to the custom provider; it doesn't check whether BuildSystemLogIssueLoggerProvider survived, so it locks in the regression instead of catching it.

Suggested fix (unchanged from prior reviews): the file already has the correct filter three lines away in HasDefaultLoggingProvider (PipelineBuilder.cs:664-668), which matches by ImplementationType against _defaultLoggingProviderTypes. Reuse that same filter for removal instead of RemoveAll<ILoggerProvider>():

if (defaultLoggingProvidersRemoved)
{
    foreach (var descriptor in services.Where(d =>
                 d.ServiceType == typeof(ILoggerProvider)
                 && d.ImplementationType is { } t
                 && _defaultLoggingProviderTypes.Contains(t)).ToList())
    {
        services.Remove(descriptor);
    }
}

This is architecturally more correct because "clear the default providers" and "clear all providers" are different user intents that the current code conflates — running Initialize(services) on the final collection before this check means any current or future framework-registered ILoggerProvider (not just Spectre) is caught in the blast radius of a user calling ClearProviders().

Minor, still-unaddressed cleanup: ConcurrencyOptions.EnableDetailedLogging/EnableTimingMetrics (src/ModularPipelines/Options/ConcurrencyOptions.cs:57,62) were relocated from the deleted SchedulerOptions but remain unread anywhere in the codebase outside test defaults. Since this PR is already consolidating scheduler settings into the unified options model, either wire them up or drop them so they don't look like actionable configuration that silently does nothing.

Everything else in this large refactor continues to look consistent: FixedOptions<PipelineOptions> correctly threads registered IValidateOptions<PipelineOptions> through IOptions/IOptionsSnapshot/IOptionsMonitor, SecretMaskingOptions is now cleanly init-only under PipelineOptions.Secrets, OptionsValidator is sensibly split into per-section helpers with resilience/concurrency validation added, and the ConfigurePipelineOptions → ConfigureOptions migration across src/tests/docs (including the docs/docs/how-to/categories.md fix from an earlier round) has no dangling references to removed APIs.

[thomhurst]

Addressed the blocking logging review at 99c760a. ClearProviders now removes only captured default console provider types from the final collection, preserving BuildSystemLogIssueLoggerProvider; the regression asserts both the custom provider and CI issue provider survive. Also removed the two unread ConcurrencyOptions diagnostics noted by review and added an absence contract. Rebased onto current main. Exact-head validation: core project Release build 0 warnings/errors; PipelineOptionsTests 22/22; ConcurrencyOptionsTests 6/6; scoped format and diff check passed. The broader ModularPipelines.Tests.slnf build hit the fixed 2 GB agent guard (exit 137), so its limit was not raised or retried.

[thomhurst]

Updated core public API baselines after #4251/#4267 exposed stale namespace entries. Added the current generated APIs to Unshipped, removed 185 obsolete shipped entries (including this PR's v4 removals), and scoped RS0027 suppression to the preserved source-generator compatibility overload. Validation: CI-mode core Release build passed with 0 errors. Focused unit-test run hit the repository's fixed 2 GB guard at 2114 MB (exit 137), so it was not retried.

[thomhurst]

@claude please review the latest head.

[thomhurst]

Addressed exact-head nested options isolation blocker after rebasing onto merged #4263. FixedOptions now deep-clones every mutable PipelineOptions subtree, including Http.Logging/Resilience and Commands.Logging, while safely sharing immutable collection snapshots. Added regression that resolves named options first, mutates nested Http.Logging, and verifies default reference/value isolation. Validation: PipelineOptionsTests 31/31; GITHUB_ACTIONS=true core Release build succeeded (0 errors, 4 existing RS0026 warnings); diff check clean. @claude review

[thomhurst]

The prior review workflow completed with four permission denials and posted no required exact-head verdict for eae1567. @claude review

[thomhurst]

Addressed all three builder/logging findings through eae1567 and bd4591f. Core build: 0 errors. PipelineOptionsTests 34/34 and NonSpectreLoggerFactoryTests 7/7 pass; each new regression also passes independently. @claude review

[thomhurst]

Reran the failed exact-head Claude review job once; attempt 1 posted no verdict for bd4591f. CI remains in progress.

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[thomhurst]

@claude review

[thomhurst]

Addressed custom ILoggerFactory control selection at 21d948d. Core build and split unit-test build pass; PipelineOptionsTests 34/34. The combined test-solution build hit the fixed 2 GB local guard. @claude review

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@claude review

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[thomhurst]

Reran the failed exact-head Claude review job once for aa36fc4; attempt 1 again terminated with is_error:true before posting a verdict. Remaining CodeQL C# analysis is still in progress.

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[thomhurst]

Reran the failed exact-head Claude review job once for 15e9aa9; attempt 1 again terminated with is_error:true before posting a verdict. All other current checks are terminal.