[dotnet-port-api] Align concurrent tool invocation opt-in

[github-actions]

Summary

Port microsoft/agent-framework#7650 (commit 047ec7eaffab0d85306d85d7771cdfbc87d66e18) by surfacing a public Go opt-in, agent.Config.AllowConcurrentToolInvocations, to the default tool auto-call middleware used by the OpenAI chat/responses, Anthropic, Gemini, and AG-UI providers. Foundry inherits the same behavior through the OpenAI Responses-backed agent path.

This keeps the existing default serial behavior, adds provider-level parity for concurrent tool execution when a single model response returns multiple tool calls, adds end-to-end AG-UI coverage for both modes, and updates the feature comparison doc to reflect the new surface.

Ported .NET PRs

• .NET: Allow agents to opt into concurrent tool invocation agent-framework#7650 - allow agents to opt into concurrent tool invocation

Breaking Changes

No.

Tests and Examples

• go test ./provider/aguiprovider ./provider/openaiprovider ./provider/anthropicprovider ./provider/geminiprovider ./provider/foundryprovider
• Added AG-UI provider coverage for the default serial auto-call path and the new concurrent opt-in path.

Notes

• No example was added because the upstream .NET change only introduced a new opt-in configuration surface and test coverage.
• Skipped larger recent upstream candidates such as .NET: Add BackgroundAgentsProvider.ReleaseSessionAsync to cancel and release per-session background tasks agent-framework#7602 and .NET: agent-hooks interception contract as a first-class experimental feature agent-framework#7564 to keep this nightly port narrow and easy to review.

Generated by .NET to Go API Porting Agent · gpt54 · 215.1 AIC · ⌖ 17.3 AIC · ⊞ 24.4K · ◷

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Show patch preview (239 of 239 lines)

From f5d63c81857a01b88388ec02dbf39811894b7068 Mon Sep 17 00:00:00 2001
From: "github-actions[bot]" <github-actions[bot]@users.noreply.github.com>
Date: Tue, 25 Aug 2026 05:43:40 +0000
Subject: [PATCH] [dotnet-port-api] Align concurrent tool invocation opt-in

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 agent/agent.go                           |  7 ++
 docs/dotnet-go-sdk-feature-comparison.md |  2 +-
 provider/aguiprovider/agui.go            |  5 +-
 provider/aguiprovider/agui_test.go       | 88 ++++++++++++++++++++++++
 provider/anthropicprovider/agent.go      |  5 +-
 provider/geminiprovider/agent.go         |  5 +-
 provider/openaiprovider/chat.go          |  5 +-
 provider/openaiprovider/responses.go     |  5 +-
 8 files changed, 111 insertions(+), 11 deletions(-)

diff --git a/agent/agent.go b/agent/agent.go
index 11953bae0..7516ce3e7 100644
--- a/agent/agent.go
+++ b/agent/agent.go
@@ -81,6 +81,13 @@ type Config struct {
 	// DisableFuncAutoCall tells provider constructors not to add automatic function-tool calling middleware.
 	DisableFuncAutoCall bool
 
+	// AllowConcurrentToolInvocations allows the default automatic function-tool
+	// calling middleware added by provider constructors to execute multiple tool
+	// calls from the same provider response in parallel. The default is false.
+	// This setting has no effect when DisableFuncAutoCall is true or when the
+	// provider uses a custom toolautocall middleware configuration.
+	AllowConcurrentToolInvocations bool
+
 	// Logger receives run, middleware, and provider diagnostics.
 	Logger *slog.Logger
 
diff --git a/docs/dotnet-go-sdk-feature-comparison.md b/docs/dotnet-go-sdk-feature-comparison.md
index 22f52a521..f6a5ada89 100644
--- a/docs/dotnet-go-sdk-feature-comparison.md
+++ b/docs/dotnet-go-sdk-feature-comparison.md
@@ -38,7 +38,7 @@ Within overlapping features, the main misalignments are API shape and ecosystem
 | Annotations/citations | MEAI annotation/content support th
... (truncated)