feat: emit new executing tool call event after any tool confirmation

[norman-le]

Changes across repos for client-side tools feature:
uipath-python:
- Removed toolName from ExecutingToolCallEvent model. 
- Added client-side tool declaration model on exchange start. 
- Bridge gains emit_executing_tool_call method and wait_for_resume buffering for early responses.

uipath-runtime-python:
- Added emit_executing_tool_call to protocol. 
- Runtime loop emits executingToolCall after tool-call confirmations resume.

uipath-langchain-python:
- Client-side tool factory with @durable_interrupt. Names-only tool filtering via apply_tool_filter. 
- MessageMapper emits executingToolCall for all non-confirmed tools, adds isClientSideTool/outputSchema to startToolCall, suppresses endToolCall for client-side results. 
- Runtime discovers client-side tools through graph introspection. 
- Init node applies per-exchange filtering.

uipath-agents-python:
- Strips client-side tool metadata during evals.

uipath-dev-python:
- Protocol stub for emit_executing_tool_call.

AgentInterfaces:
- Schema updates (ExecutingToolCallEvent, ClientSideToolDeclaration, exchange start). 
- CAS passes client-side tool names to runtime input, forwards confirmToolCall to CLI bridge. 
- React SDK handles executingToolCall for client-side tools.

Videos in CAS localhost (Agent Builder changes already published, but this will be the debug experience as well when the sdk is upgraded):

Without tool confirmation for client side tool:

Screen.Recording.2026-05-13.at.9.32.26.PM.mov

With tool confirmation for client side tool:

Screen.Recording.2026-05-13.at.9.27.56.PM.mov

URT Eval:

Related to changes in other PRs:
CAS: https://github.com/UiPath/AgentInterfaces/pull/949
uipath-langchain-python (message mapping and firing executing tool call if no confirmation): UiPath/uipath-langchain-python#856
uipath-python (definitions): UiPath/uipath-python#1638
uipath-agents-python (skipping for evals, so it can be mocked): https://github.com/UiPath/uipath-agents-python/pull/485
uipath-runtime-python (protocol changing to emit executing tool call event after confirmation): #115
Another Agents PR fixing some issues with debug: https://github.com/UiPath/Agents/pull/5250

[Copilot]

Pull request overview

This PR updates the chat runtime/bridge contract to support a new executingToolCall event emitted after a tool-call confirmation resumes, enabling clients to reliably run client-side tools with the final confirmed input.

Changes:

• Adds emit_executing_tool_call(tool_call_id, tool_input) to UiPathChatProtocol.
• Updates UiPathChatRuntime.stream() to emit executingToolCall after a resume payload indicates an approved tool-call confirmation.
• Extracts the tool_call_id and confirmed input from the API resume request/resume payload before resuming the underlying runtime.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/uipath/runtime/chat/runtime.py	Emits executingToolCall after approved confirmations so clients can run client-side tools with final inputs.
src/uipath/runtime/chat/protocol.py	Extends the chat bridge protocol with emit_executing_tool_call to support the new event.

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[maxduu]

Oh also looks like SonarCloud failed, maybe you can generate some quick tests. Also needs pyproject/uv.lock bump as well

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
94.4% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud