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yoi/.yoi/tickets/00001KY1ZKCPC/thread.md

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作成

LocalTicketBackend によって作成されました。

項目更新

Ticket item updated: title, body.

項目更新

Ticket item updated: title, body.

Plan

Implementation started.

Plan for this pass:

  • Inspect local Worker protocol transport and current Backend/frontend HTTP operation mappings.
  • Add a Backend/runtime protocol command transport that accepts existing protocol::Method payloads rather than per-operation HTTP endpoints.
  • Route TUI Backend Runtime client through that protocol transport for run/notify/completion/cancel/pause/resume/compact/rewind operations.
  • Route browser Console operations through the same protocol transport and stop using HTTP operation endpoints as the normal path.
  • Keep existing HTTP endpoints only as compatibility where needed, not as frontend/TUI authority.

Implementation report

Implementation update:

Implemented the first full protocol-transport pass for Backend/runtime Worker controls.

Backend/runtime:

  • Added Runtime::send_protocol_method(...) in worker-runtime.
    • Method::ListCompletions returns direct Event::Completions for same-command-connection semantics.
    • Other methods are delivered unchanged to the execution backend.
  • Added WorkerExecutionBackend::dispatch_method(...) and concrete support in WorkerRuntimeExecutionBackend.
    • This accepts existing protocol::Method values instead of translating through operation-specific HTTP request DTOs.
  • Added runtime command WebSocket:
    • /v1/workers/{worker_id}/protocol/ws
    • accepts raw protocol::Method JSON frames
    • returns raw direct protocol::Event JSON frames where needed
  • Added workspace-server command WebSocket:
    • /api/runtimes/{runtime_id}/workers/{worker_id}/protocol/ws
    • /api/w/{workspace_id}/runtimes/{runtime_id}/workers/{worker_id}/protocol/ws
  • Added RuntimeRegistry::send_protocol_method(...) and embedded runtime forwarding.

TUI client:

  • Reworked BackendRuntimeClient so send(&Method) no longer maps to HTTP /input, lifecycle, or unsupported diagnostics.
  • It now opens a command WS to /protocol/ws and sends cloned raw protocol::Method values.
  • Direct command response events are merged into the existing event queue alongside observation WS events.
  • This removes the previous unsupported handling for pause/resume/compact/completions/rewind at the TUI client transport layer.

Browser Console:

  • Added command WS connection to /protocol/ws while keeping /events/ws as observation stream.
  • Removed normal operation use of HTTP POST /input and POST /completions from the Console page.
  • Composer send now maps to protocol methods:
    • user input -> Method::Run with protocol Segment[]
    • system input -> Method::Notify { auto_run: true }
    • :compact -> Method::Compact
    • :rewind -> Method::ListRewindTargets
    • :peer -> Method::RegisterPeer
  • Completion lookup now sends Method::ListCompletions over command WS and waits for direct Event::Completions.
  • Added frontend controls for cancel / pause / resume / compact / rewind target request / rewind to target.

Compatibility note:

  • Existing HTTP operation endpoints remain in backend/server as compatibility for now, but the TUI Backend client and browser Console normal path now use protocol transport.

Verification run under nix develop:

  • cargo fmt -- --check
  • cargo check -p worker-runtime -p yoi-workspace-server -p client -p tui
  • cargo test -p client backend_runtime --lib
  • cargo test -p yoi-workspace-server registry_worker_list_can_be_scoped_by_runtime_id --lib
  • cargo test -p worker-runtime --features ws-server --lib worker_backend
  • git diff --check

Frontend check note:

  • web/workspace/package.json currently has no check script and local frontend dependencies are not installed in this worktree.
  • Attempted temporary npm exec --package svelte-check --package typescript -- svelte-check, but the tool bootstrap failed before checking project code.
  • The Svelte page was updated against the generated protocol types in web/workspace/src/lib/generated/protocol.ts, but a frontend-native check still needs to be run in an environment with the frontend deps installed.

Implementation report

Follow-up implementation after design clarification:

Changed the transport split so /events/ws no longer exists. /protocol/ws is now the single Worker protocol WebSocket for both directions:

  • client -> runtime/backend: raw protocol::Method JSON frames
  • runtime/backend -> client: raw protocol::Event JSON frames

Runtime changes:

  • Removed /v1/workers/{worker_id}/events/ws route.
  • Removed runtime-specific event WS envelope/diagnostic frame types.
  • Extended /v1/workers/{worker_id}/protocol/ws to stream snapshot/backlog/live observation events as raw protocol::Event while also accepting method frames on the same socket.

Workspace Backend changes:

  • Removed public /api/.../events/ws and /api/w/.../events/ws routes.
  • Removed Backend client event WS envelope types.
  • Workspace /protocol/ws now proxies/streams raw protocol events and forwards raw protocol methods on the same socket.
  • Runtime observation source endpoint generation now targets runtime /protocol/ws instead of /events/ws.

Client/frontend changes:

  • TUI BackendRuntimeClient no longer opens a separate observation socket. It uses only /protocol/ws for send and receive.
  • Browser Console no longer opens both observation and command sockets. It uses one protocol socket for replay/live events, completions, rewind targets, and controls.
  • Removed old frontend ClientWorkerEventWs* types.
  • Updated frontend UI tests to assert protocol-only Console behavior and absence of operation HTTP paths.

Verification:

  • nix develop -c cargo fmt -- --check
  • nix develop -c cargo check -p worker-runtime -p yoi-workspace-server -p client -p tui
  • nix develop -c cargo test -p client backend_runtime --lib
  • nix develop -c cargo test -p worker-runtime --features ws-server --lib protocol_ws
  • nix develop -c cargo test -p yoi-workspace-server protocol_ws --lib
  • nix develop -c cargo test -p yoi-workspace-server proxy_maps_runtime_worker_not_found_http_404_to_protocol_error_event --lib
  • deno test --allow-read web/workspace/src/lib/workspace/console/worker-console.ui.test.ts from web/workspace
  • git diff --check

Implementation report

Bug fix after manual TUI send failure:

Observed symptom:

  • TUI send over Backend protocol reported a does not support Worker protocol command transport style error.

Root cause:

  • /events/ws had been removed and /protocol/ws unified, but workspace-server still handled inbound client protocol::Method by calling RuntimeRegistry::send_protocol_method(...).
  • For remote runtime-backed workers, Backend must be only a protocol WS proxy. Calling the registry default method hits the unsupported path instead of tunneling the frame to the runtime's /protocol/ws.

Fix:

  • Workspace-server now branches by observation/protocol source:
    • RemoteWs: proxy raw WebSocket frames bidirectionally between client /api/.../protocol/ws and runtime /v1/.../protocol/ws. Backend does not deserialize or interpret method frames in this path.
    • Embedded: use in-process runtime adapter for method dispatch while streaming embedded observation events.
  • Added/updated test so sending Method::ListCompletions through the workspace-server protocol proxy returns Event::Completions from the runtime, proving method frames reach the runtime instead of the Backend unsupported fallback.

Verification:

  • nix develop -c cargo fmt -- --check
  • nix develop -c cargo check -p yoi-workspace-server -p client -p worker-runtime
  • nix develop -c cargo test -p yoi-workspace-server proxies_worker_protocol_ws_as_raw_events --lib
  • nix develop -c cargo test -p client backend_runtime --lib
  • nix develop -c cargo test -p worker-runtime --features ws-server --lib protocol_ws
  • nix develop -c cargo test -p yoi-workspace-server protocol_ws --lib
  • deno test --allow-read web/workspace/src/lib/workspace/console/worker-console.ui.test.ts
  • git diff --check

Implementation report

Bug fix for missing local echo in TUI/Web:

Observed symptom:

  • Sending from TUI/Web over unified /protocol/ws reached the runtime and was accepted as protocol_method, but the user's sent content did not appear in the Console.

Root cause:

  • The old HTTP input path emitted observation events for accepted input via input_protocol_event(...) (Event::UserMessage for user input / Event::SystemItem for system input).
  • The new raw Method::Run / Method::Notify protocol path dispatched the method to the execution backend but did not record the corresponding observation echo event.
  • Therefore the unified protocol stream had assistant/runtime events, but no echo event representing the user-sent content.

Fix:

  • Added protocol-method observation echo in worker-runtime after accepted Runtime::send_protocol_method(...) dispatch.
  • Method::Run now records Event::UserMessage { segments }.
  • Method::Notify now records a system input Event::SystemItem.
  • Kept compact/list_rewind_targets/register_peer command echoes aligned with the old command-input observation shape.
  • Added a runtime protocol WS regression test: send Method::Run over /protocol/ws and assert the same socket receives Event::UserMessage with the sent text.

Verification:

  • nix develop -c cargo fmt -- --check
  • nix develop -c cargo check -p worker-runtime -p yoi-workspace-server -p client -p tui
  • nix develop -c cargo test -p worker-runtime --features ws-server --lib protocol_ws_echoes_accepted_run_as_user_message
  • nix develop -c cargo test -p worker-runtime --features ws-server --lib protocol_ws
  • nix develop -c cargo test -p yoi-workspace-server protocol_ws --lib
  • nix develop -c cargo test -p client backend_runtime --lib
  • git diff --check

Implementation report

Correction after review:

The previous fix synthesized Event::UserMessage in Runtime::send_protocol_method(...). That was the wrong layer. UserMessage is part of the normal Worker protocol/log output path and should not be constructed by the runtime transport layer.

Root cause refined:

  • The embedded Worker backend bridge only subscribed to WorkerHandle::event_tx.
  • Local socket clients also subscribe to SegmentLogSink live entries; LogEntry::UserInput is mapped to Event::UserMessage there.
  • Runtime observation/protocol streaming missed that SegmentLogSink live-entry path, so user input echo events were absent when using runtime protocol transport.

Fix:

  • Removed the runtime-side synthetic protocol-method echo from Runtime::send_protocol_method(...).
  • Updated WorkerRuntimeExecutionBackend::connect_handle(...) to bridge both:
    • direct Worker protocol events from WorkerHandle::subscribe()
    • live session log entries from handle.sink.subscribe_with_snapshot()
  • Added runtime bridge mapping matching local IPC behavior:
    • LogEntry::SegmentStart -> Event::SegmentRotated
    • LogEntry::UserInput -> Event::UserMessage
    • LogEntry::SystemItem -> Event::SystemItem
    • LogEntry::Invoke -> Event::InvokeStart
  • Removed the fake protocol-WS echo test that depended on synthetic runtime behavior.
  • Added a unit test that locks the normal bridge mapping: live LogEntry::UserInput maps to Event::UserMessage.

Verification:

  • nix develop -c cargo fmt -- --check
  • nix develop -c cargo check -p worker-runtime -p yoi-workspace-server -p client -p tui
  • nix develop -c cargo test -p worker-runtime --features ws-server --lib runtime_bridge_maps_live_user_input_log_entry_to_user_message
  • nix develop -c cargo test -p worker-runtime --features ws-server --lib protocol_ws
  • nix develop -c cargo test -p yoi-workspace-server protocol_ws --lib
  • nix develop -c cargo test -p client backend_runtime --lib
  • git diff --check

Decision

Design correction / implementation target:

Runtime protocol WS should be thin. /v1/workers/{worker_id}/protocol/ws is already worker-id scoped, so after worker lookup it should not reimplement Worker protocol semantics. It should connect the WebSocket framing to the same Worker protocol session behavior used by local IPC.

Current issue:

  • Local IPC protocol session in worker/src/ipc/server.rs already knows how to combine:
    • WorkerHandle::event_tx protocol events
    • SegmentLogSink live log entries (LogEntry::UserInput -> Event::UserMessage, etc.)
    • Method frame reading and event writing
  • Runtime WS has been recreating similar logic in worker-runtime/src/http_server.rs / worker_backend.rs.
  • This duplicated logic caused drift: runtime protocol streaming initially missed SegmentLogSink live entries, and a bad synthetic echo workaround was added before being corrected.

Decision:

  • Do not make runtime/backend interpret normal Worker protocol operations.
  • Backend remains a raw protocol WS proxy for remote runtime workers.
  • Runtime remains a worker-id lookup + lifecycle boundary; for protocol WS it should delegate to a shared Worker protocol session implementation.
  • Local IPC and runtime WS should use the same session logic so user echo, system items, invoke events, completions, rewind, pause/resume, etc. cannot diverge.

Implementation target:

  • Extract the local IPC protocol session logic into a reusable Worker protocol session helper that is not Unix-socket-specific.
  • Local IPC server uses the helper.
  • Runtime protocol WS uses the same helper or a thin adapter around it.
  • Remove duplicated live-entry/event bridging from runtime-specific code where possible.
  • Keep lifecycle/runtime management outside the protocol session helper.

Implementation report

Implementation update for thin runtime protocol session:

  • Added worker::ipc::protocol_session as the shared Worker protocol session helper.
    • subscribe_worker_protocol_session(&WorkerHandle) centralizes snapshot + alert + live log entry + event subscriptions.
    • live_log_entry_event(LogEntry) centralizes the local IPC mapping:
      • SegmentStart -> Event::SegmentRotated
      • UserInput -> Event::UserMessage
      • SystemItem -> Event::SystemItem
      • Invoke -> Event::InvokeStart
    • dispatch_worker_protocol_method(...) centralizes same-connection direct response handling for ListCompletions, forwarding other methods to WorkerHandle::send.
  • Updated local IPC server to use the shared helper instead of owning its own mapping/subscription logic.
  • Updated worker-runtime embedded backend bridge to use the same shared helper for live Worker/log event bridging.
  • Removed the duplicated live_log_entry_event mapping from runtime-specific code.

Scope note:

  • This keeps Backend as raw WS proxy for remote runtime workers.
  • Runtime still performs worker-id lookup and execution/lifecycle boundary work, but protocol stream composition now uses the same Worker session helper as local IPC instead of maintaining a separate mapping implementation.
  • Full WS socket pump and Unix JSONL pump still have transport-specific loops, but the protocol subscription/mapping/direct-response semantics are no longer duplicated.

Verification:

  • nix develop -c cargo fmt -- --check
  • nix develop -c cargo check -p worker-runtime -p worker -p yoi-workspace-server -p client -p tui
  • nix develop -c cargo test -p worker --lib ipc::protocol_session
  • nix develop -c cargo test -p worker --lib ipc::server
  • nix develop -c cargo test -p worker-runtime --features ws-server --lib protocol_ws
  • nix develop -c cargo test -p yoi-workspace-server protocol_ws --lib
  • nix develop -c cargo test -p client backend_runtime --lib
  • git diff --check

Implementation report

Implementation update for shared protocol frame/pump semantics:

  • Added Method/Event-specific JSON codec helpers in protocol::stream:
    • encode_method / decode_method
    • encode_event / decode_event
    • JsonLineReader::next_method()
    • JsonLineWriter::write_event()
  • Updated local IPC to use the shared codec helpers and the shared worker::ipc::protocol_session semantics.
  • Updated runtime WS and workspace-server embedded protocol handling to use the same decode_method / encode_event helpers instead of direct serde_json calls.
  • Updated Backend runtime client and remote observation client to use encode_method / decode_event for protocol frames.

Resulting split:

  • Shared:
    • JSON shape for protocol::Method / protocol::Event
    • Method/Event encode/decode
    • WorkerHandle subscription semantics
    • live LogEntry -> Event mapping
    • direct-response method semantics such as ListCompletions
  • Transport-specific:
    • Unix IPC uses JSONL line boundary.
    • WebSocket uses one text frame per JSON value.

This makes WS effectively a frame-boundary adapter around the same JSON protocol frames rather than a separate protocol implementation.

Verification:

  • nix develop -c cargo fmt -- --check
  • nix develop -c cargo check -p protocol -p worker -p worker-runtime -p yoi-workspace-server -p client -p tui
  • nix develop -c cargo test -p worker --lib ipc::protocol_session
  • nix develop -c cargo test -p worker --lib ipc::server
  • nix develop -c cargo test -p worker-runtime --features ws-server --lib protocol_ws
  • nix develop -c cargo test -p yoi-workspace-server protocol_ws --lib
  • nix develop -c cargo test -p client backend_runtime --lib
  • git diff --check

Comment

Reported issue before implementation:

  • TUI shows the Compacting... progress/status indication.
  • Web Console does not show the same indication.

Investigation plan:

  • Compare TUI protocol/event handling with Web Console protocol/event handling.
  • Confirm whether the relevant protocol event reaches the browser and is dropped by frontend state/rendering, or whether the event is not forwarded through the Backend/runtime protocol WS path.
  • Fix the narrow missing mapping/rendering path without adding a synthetic event outside the normal Worker protocol/session flow.

Implementation report

Implementation report for Web Console compact/rotation display gap:

  • Web Console already handled live compact_start by projecting a Compacting… status row.
  • The projection was still ignoring segment_rotated, while TUI reseeds the visible transcript from the new segment start entry. This made Web diverge around compaction/segment-rotation boundaries.
  • Updated web/workspace/src/lib/workspace/console/model.ts so segment_rotated reprojects event.data.entry through the same log-entry projection path used by snapshot.
  • Added a Web projection regression test asserting segment_rotated replaces stale visible rows with the new segment seed.
  • While running Web check, fixed a narrow list_completions TypeScript narrowing issue in +page.svelte: command completions return early, then the file completion kind/prefix are captured before the Promise closure.

Verification:

  • cd web/workspace && deno test --allow-read=src --allow-env=VSCODE_TEXTMATE_DEBUG src/lib/workspace/console/model.test.ts
  • cd web/workspace && deno task check passes with 0 errors; it still reports 2 existing a11y warnings in +page.svelte.
  • git diff --check