Add Temporalio.Extensions.ToolRegistry with AgenticSession support#641
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lex00 wants to merge 4 commits intotemporalio:mainfrom
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Add Temporalio.Extensions.ToolRegistry with AgenticSession support#641lex00 wants to merge 4 commits intotemporalio:mainfrom
lex00 wants to merge 4 commits intotemporalio:mainfrom
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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Adds McpTool record and ToolRegistry.FromMcpTools static method that converts a sequence of MCP tool descriptors into a populated ToolRegistry. Handlers default to no-ops; callers override with Register after construction. Null InputSchema is normalized to an empty object schema. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Set is_error=true on Anthropic tool result maps when a handler throws, matching the Anthropic API spec; OpenAI has no equivalent field - Add AnthropicProvider_HandlerError_SetsIsError test using an HttpListener- based mock server to verify is_error propagation without a real API key - Clarify RunToolLoopAsync system param docstring - Update README to clarify positioning vs Python/TypeScript framework plugins Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…ut docs - Rename AgenticSession.Issues → Results; update SessionCheckpoint JSON key 'issues' → 'results' and property Issues → Results - Remove unused system parameter from AgenticSession.RunToolLoopAsync and ToolRegistry.RunToolLoopAsync - Add ScheduleToCloseTimeout guidance to README - Update all test call sites (AgenticSessionTests, ToolRegistryTests) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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What was changed
New
Temporalio.Extensions.ToolRegistrypackage for running LLM tool-calling loops inside Temporal activities.ToolRegistry— maps tool names to JSON Schema definitions and handler functionsAgenticSession— crash-safe wrapper that checkpoints conversation history viaActivityExecutionContext.HeartbeatAsyncon each turn and restores on retry; session survives both activity crashes and provider-side session expiry since state is stored locallyAnthropicProviderandOpenAIProviderTemporalio.Extensions.ToolRegistry.TestingwithMockProviderandFakeToolRegistryfor unit testing without a live API keyToolRegistry.FromMcpTools— converts a sequence of MCP tool descriptors into a populated registryBug fix included
The Anthropic provider now sets
is_error: trueon tool result maps when a handler throws, matching the Anthropic API spec. A new test (AnthropicProvider_HandlerError_SetsIsError) verifies this using anHttpListener-based mock server. OpenAI has no equivalent field.Why?
Temporal activities are a natural fit for LLM tool-calling loops, but every team reimplements the same boilerplate. This extension package standardizes the pattern across all six Temporal SDKs. .NET has no framework-level LLM integration (Python's
openai_agents/google_adk_agentsand TypeScript's@temporalio/ai-sdkare Python/TypeScript only), so this is the recommended path for direct Anthropic/OpenAI calls in .NET.Proposal: temporalio/proposals#107
Checklist
MockProvider(no API key required); newAnthropicProvider_HandlerError_SetsIsErrortest usesHttpListenermock; integration tests gated onRUN_INTEGRATION_TESTS=1