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Port ExitPlanMode and AutoModeSwitch handler APIs from reference implementation#181

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Copilot wants to merge 5 commits intomainfrom
copilot/reference-impl-sync-9-new-commits
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Port ExitPlanMode and AutoModeSwitch handler APIs from reference implementation#181
Copilot wants to merge 5 commits intomainfrom
copilot/reference-impl-sync-9-new-commits

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Copilot AI commented May 9, 2026 •
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Resolves #297

Before the change?

  • Java SDK lacked ExitPlanMode and AutoModeSwitch handler APIs present in other SDK implementations, preventing hosts from responding to runtime mode-switching requests (plan exit approval, rate-limit model switching).

After the change?

  • New handler types — ExitPlanModeHandler, AutoModeSwitchHandler with corresponding request/result/invocation POJOs and AutoModeSwitchResponse enum (YES, YES_ALWAYS, NO)
  • Full handler wiring — SessionConfig / ResumeSessionConfig → SessionRequestBuilder (sets requestExitPlanMode / requestAutoModeSwitch flags) → CopilotSession (AtomicReference storage, registration, dispatch with defaults) → RpcHandlerDispatcher (exitPlanMode.request, autoModeSwitch.request RPC methods)
  • Default behavior — ExitPlanMode auto-approves; AutoModeSwitch declines (NO) when no handler registered, matching .NET reference
  • Codegen sync — @github/copilot bumped to ^1.0.44-3, .lastmerge advanced to 30a76a5
var session = client.createSession(
    new SessionConfig()
        .setOnExitPlanMode((req, inv) -> CompletableFuture.completedFuture(
            new ExitPlanModeResult().setApproved(true).setSelectedAction("autopilot")))
        .setOnAutoModeSwitch((req, inv) -> CompletableFuture.completedFuture(
            AutoModeSwitchResponse.YES))
).get();

Commits analyzed (9): 1 ported (671b50a mode handlers), 1 synced via finish script (ac55e9a codegen version), 7 not applicable (Go/Rust/CI-only, .NET generated code, doc typos not present in Java SDK).

Pull request checklist

  • Tests for the changes have been added (for bug fixes / features)
  • Docs have been reviewed and added / updated if needed (for bug fixes / features)
  • mvn spotless:apply has been run to format the code
  • mvn clean verify passes locally

Does this introduce a breaking change?

  • Yes
  • No

Copilot AI linked an issue May 9, 2026 that may be closed by this pull request
[reference-impl-sync] Reference Implementation sync: 9 new commits (2026-05-09) #180
Open
Copilot AI and others added 2 commits May 9, 2026 23:17
@edburns
Port exit-plan-mode and auto-mode-switch handler APIs from reference …
b01df0a 
…implementation

Co-authored-by: edburns <75821+edburns@users.noreply.github.com>
@edburns
Add tests for exit-plan-mode and auto-mode-switch handler APIs
830cef3 
Co-authored-by: edburns <75821+edburns@users.noreply.github.com>
github-code-quality[bot]
github-code-quality Bot found potential problems May 9, 2026
View reviewed changes
Comment thread src/main/java/com/github/copilot/sdk/RpcHandlerDispatcher.java

session.handleExitPlanModeRequest(request).thenAccept(result -> {
try {
rpc.sendResponse(Long.parseLong(requestId), result);
Comment thread src/main/java/com/github/copilot/sdk/RpcHandlerDispatcher.java
}
}).exceptionally(ex -> {
try {
rpc.sendErrorResponse(Long.parseLong(requestId), -32603,
Comment thread src/main/java/com/github/copilot/sdk/RpcHandlerDispatcher.java

session.handleAutoModeSwitchRequest(request).thenAccept(response -> {
try {
rpc.sendResponse(Long.parseLong(requestId), java.util.Map.of("response", response));
Comment thread src/main/java/com/github/copilot/sdk/RpcHandlerDispatcher.java
}
}).exceptionally(ex -> {
try {
rpc.sendErrorResponse(Long.parseLong(requestId), -32603,
Comment thread src/main/java/com/github/copilot/sdk/json/AutoModeSwitchHandler.java
* context information about the invocation
* @return a future that resolves with the user's decision
*/
CompletableFuture<AutoModeSwitchResponse> handle(AutoModeSwitchRequest request,
Comment thread src/main/java/com/github/copilot/sdk/json/AutoModeSwitchHandler.java
* @return a future that resolves with the user's decision
*/
CompletableFuture<AutoModeSwitchResponse> handle(AutoModeSwitchRequest request,
AutoModeSwitchInvocation invocation);
Comment thread src/main/java/com/github/copilot/sdk/json/ExitPlanModeHandler.java
* context information about the invocation
* @return a future that resolves with the user's decision
*/
CompletableFuture<ExitPlanModeResult> handle(ExitPlanModeRequest request, ExitPlanModeInvocation invocation);
Comment thread src/main/java/com/github/copilot/sdk/json/ExitPlanModeHandler.java
* context information about the invocation
* @return a future that resolves with the user's decision
*/
CompletableFuture<ExitPlanModeResult> handle(ExitPlanModeRequest request, ExitPlanModeInvocation invocation);
Copilot AI and others added 2 commits May 9, 2026 23:36
@edburns
Update .lastmerge to 30a76a535fcb094938e7920394865ba956c6172b, sync p…
473cee0 
…om.xml CLI version, and update scripts/codegen @github/copilot version

Co-authored-by: edburns <75821+edburns@users.noreply.github.com>
@edburns
Add mode handler documentation and run finish script
1fc2ce5 
Co-authored-by: edburns <75821+edburns@users.noreply.github.com>
Copilot AI changed the title [WIP] Sync reference implementation with 9 new commits Port ExitPlanMode and AutoModeSwitch handler APIs from reference implementation May 9, 2026
Copilot finished work on behalf of edburns May 9, 2026 23:38
Copilot AI requested a review from edburns May 9, 2026 23:38
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[reference-impl-sync] Reference Implementation sync: 9 new commits (2026-05-09)

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