[E2E] session.todos_changed event + readSqlTodosWithDependencies (6 languages)

[SteveSandersonMS]

Adds E2E coverage for the new runtime APIs in copilot-agent-runtime#10061:

• session.todos_changed event fires when the agent's sql tool issues a write touching the prompted todos / todo_deps tables.
• session.plan.readSqlTodosWithDependencies returns the structured rows + dependency edges for progress UIs.

Coverage

One scenario, one shared CAPI snapshot (test/snapshots/session_todos_changed/fires_session_todos_changed_and_exposes_rows_and_dependencies.yaml), replayed across all 6 SDK languages. Each test instructs the agent to insert two known rows (alpha, beta) plus one dependency edge (beta -> alpha), then asserts:

1. at least one session.todos_changed event was observed, and
2. session.plan.readSqlTodosWithDependencies() (typed RPC) returns ids [alpha, beta] and the beta -> alpha edge.

Language	Test file	Status
Node	nodejs/test/e2e/session_todos_changed.e2e.test.ts	passes locally
.NET	dotnet/tests/GitHub.Copilot.Sdk.E2ETests/SessionTodosChangedTests.cs	passes locally
Go	go/test/e2e/session_todos_changed_test.go	passes locally
Python	python/tests/e2e/test_session_todos_changed.py	passes locally
Rust	rust/tests/session_todos_changed.rs	passes locally
Java	java/src/test/java/com/github/copilot/SessionTodosChangedTest.java	WIP - test included but currently fails locally; runtime event is not reaching the Java listener even though the identical CAPI snapshot replays cleanly in the other 5 languages. Needs follow-up investigation.

Draft notes

• The codegen diffs under each language's generated/ tree were produced by re-running the per-language codegen against the runtime PR's generated/*.schema.json files. They will reproduce automatically once the runtime PR ships in the @github/copilot npm package.
• Marked draft pending the runtime PR landing + a @github/copilot bump.
• Java test is pushed as-is so reviewers can see the full 6-language surface; intent is to fix it before merge or split it into a follow-up.

[github-actions]

Cross-SDK consistency review

The six language test files are structurally well-aligned — same prompt, same snapshot key, same two assertions (event observed + typed RPC returns the expected rows and dependency edge). Five of the six tests are consistent.

⚠️ Rust test has two consistency gaps

rust/tests/e2e/session_todos_changed.rs diverges from the pattern used in every other Rust E2E test and all other language tests:

	Node / Python / Go / .NET / Java / other Rust E2E	This Rust test
Event check	Typed SDK enum variant (SessionTodosChanged, session.todos_changed type, etc.)	SessionEventType::Unknown && event.event_type == "session.todos_changed"
RPC call	Generated typed helper (session.rpc().plan().read_sql_todos_with_dependencies())	Raw session.client().call("session.plan.readSqlTodosWithDependencies", json!({...}))
Result types	Generated PlanReadSqlTodosWithDependenciesResult, PlanSqlTodosRow, PlanSqlTodoDependency	Three local private structs

The Unknown variant check is also a logic bug: because session.todos_changed is already in the generated SessionEventType enum as SessionTodosChanged, parsed_type() will return SessionTodosChanged — not Unknown — so the predicate would never match. See the inline comments for concrete suggested fixes.

✅ All other SDKs look consistent

Generated type names, field names, event names, and the overall test structure are parallel across Node.js, Python, Go, .NET, and Java (noting the Java WIP status already called out in the PR description).

Generated by SDK Consistency Review Agent for issue #1622 · sonnet46 1.7M · ◷

[github-actions]

Generated by SDK Consistency Review Agent for issue #1622 · sonnet46 1.7M

[github-actions]

Inconsistency with generated SDK types: The predicate combines SessionEventType::Unknown with a string check, but session.todos_changed already has its own generated variant SessionEventType::SessionTodosChanged in the Rust enum. The Unknown branch will never fire for a properly-recognised event, so this condition is always false.

Every other Rust E2E test uses the typed variant directly — e.g. rpc_event_log.rs uses event.parsed_type() == SessionEventType::SessionPlanChanged. Suggest:

let todos_changed = wait_for_event(session.subscribe(), "todos changed", |event| {
    event.parsed_type() == SessionEventType::SessionTodosChanged
});

[github-actions]

Inconsistency: raw client().call() instead of typed RPC: All other five SDK tests use the generated typed plan API (session.rpc.plan.readSqlTodosWithDependencies(), session.Rpc.Plan.ReadSqlTodosWithDependenciesAsync(), etc.). The Rust SDK has the same generated typed helper — session.rpc().plan().read_sql_todos_with_dependencies() — which returns the generated PlanReadSqlTodosWithDependenciesResult (rows as Vec<PlanSqlTodosRow>, deps as Vec<PlanSqlTodoDependency>).

The three local structs PlanReadSqlTodosWithDependenciesResult, PlanTodo, and PlanTodoDependency (lines 15–33) also duplicate what's already in github_copilot_sdk::rpc. Suggest replacing the raw call + local types with:

use github_copilot_sdk::rpc::PlanReadSqlTodosWithDependenciesResult;

// ...

let result: PlanReadSqlTodosWithDependenciesResult = session
    .rpc()
    .plan()
    .read_sql_todos_with_dependencies()
    .await
    .expect("read SQL todos with dependencies");

This also lets you remove the serde::Deserialize, serde_json::json, and three local struct definitions from the top of the file.