🐛 fix(gateway): prevent duplicate streaming from stale reconnects#15354
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When a new agent execution starts for a topic that has a stale `runningOperation` in its metadata, `useGatewayReconnect` would still attempt to reconnect to the old operation concurrently with the new one, producing duplicate streaming events. Fix by: 1. Optimistically updating the topic's `runningOperation` to the new op immediately after `executeGatewayAgent` creates it, and disconnecting any live reconnect connection for the stale op. 2. Skipping `connectToGateway` in the reconnect path when the topic already has a newer running operation ID.
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Codecov Report❌ Patch coverage is Additional details and impacted files@@ Coverage Diff @@
## canary #15354 +/- ##
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- Coverage 71.11% 71.11% -0.01%
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Files 3188 3188
Lines 318686 318712 +26
Branches 34769 34771 +2
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+ Hits 226638 226641 +3
- Misses 91876 91899 +23
Partials 172 172
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Two issues fixed:
1. Race condition: the `reconnectToGatewayOperation` guard only ran before
`refreshGatewayToken`. A stale reconnect that passed the initial check
could still proceed after the token refresh if `executeGatewayAgent`
started a new operation during the await. Re-check `runningOperation`
after the token refresh to bail out in that case.
2. Test failures: the `executeGatewayAgent` mock state was missing
`topicDataMap`, causing `topicSelectors.getTopicById` to crash with
"Cannot read properties of undefined". Added `topicDataMap: {}` and
`internal_dispatchTopic` to both mock setups.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
# 🚀 LobeHub Release (20260604) **Release Date:** June 4, 2026 **Since v2.2.1:** 88 merged PRs · 11 contributors > This week brings Execution Devices out of the lab — run agents and Claude Code on any configured local or remote machine — alongside Claude Opus 4.8, token-usage analytics, and Page sharing. --- ## ✨ Highlights - **Execution Devices** — Pick where an agent runs. Desktop and CLI devices auto-register with a stable machine ID, route through the gateway by channel, and surface a device switcher in the chat input. Run remote Claude Code on a configured device, with a recent-directory picker you can drag to reorder. (#15300, #15315, #15322, #15343, #15351, #15371) - **Claude Opus 4.8** — Day-one support for Anthropic's latest model. (#15314) - **Token-usage analytics** — A new token-usage mode on the activity heatmap, backed by a denormalized topic usage/cost rollup so totals stay accurate without recomputing from messages. (#15365, #15417, #15425) - **Page sharing** — Share a Page through a dedicated document share flow, plus new Workspace and Agent share tables. (#15309, #15439) - **Self-iteration agents** — Agent Signal's execAgent migration lands a server-runtime bridge, async memory writer, and a registered self-iteration tool package, with a CLI trigger command for testing. (#15360, #15364, #15392) - **Knowledge search** — BM25 search now extends to file-backed documents, and the portal ships an editable CodeMirror viewer for local files with document highlighting. (#15247, #15298) --- ## 🏗️ Core Agent & Architecture ### Agent Signal & Runtime - **execAgent migration** — Server-runtime bridge, completion projection, async memory writer, and removal of the legacy `executeSelfIteration` path. (#15392) - Registered the self-iteration builtin tool package and restored the three mode-specific self-iteration agent slugs. (#15202, #15364) - Added a CLI trigger command with a golden-snapshot fixture for Agent Signal. (#15360) - **Skill priority** — Agent Builder now emits a skill-priority instruction with matching server runtime. (#15409) - Retry empty LLM completions instead of silently finishing the turn. (#15355) - Classify topic/agent/session foreign-key violations as `ConversationParentMissing` for clearer recovery. (#15408) - Persist canonical nested usage/performance on assistant messages, and re-link orphan tool messages at the raw bucket write boundary. (#15359, #15438) - Guard `createAgent` against LLM double-encoded array fields. (#15381) --- ## 🖥️ Execution Devices & Gateway - Auto-register desktop and CLI devices with a stable machine ID, and add the `@lobechat/device-identity` package. (#15300, #15321) - New Devices settings page behind the Execution Device Switcher lab, with a device switcher shown for all agents in the chat input. (#15315, #15371) - `connectionId` + channel routing across the gateway client and device list; preset the local device on the first LLM request for the 本机 target. (#15322, #15435) - Run remote Claude Code on a configured device, with drag-to-reorder recent-directory management and client renders for device tool results. (#15343, #15351, #15437) - Preserve content and state across gateway tool calls, and prevent duplicate streaming from stale reconnects. (#15114, #15354) --- ## 🖥️ CLI & Desktop - Preserve content/state for connect local file and shell tools; render the `runCommand` tool result card. (#15441, #15442) - New `lh topic view` command; CLI now auto-registers its device on login, matching desktop. (#15340, #15377) - Resolve CLI tools from the shell `PATH`, and clarify local command session handling. (#15368, #15389) - Relocate visual-ref helpers to `@lobechat/const` to fix a renderer crash; upload `.blockmap` files to S3 for differential updates. (#15326, #15369) - Fix a market OAuth expiry that triggered the wrong re-login modal, and kill dev child processes on parent shutdown. (#15246, #15290) --- ## 🗂️ Pages, Library & Knowledge - Document share flow with business slot stubs, plus Workspace and Agent share tables. (#15309, #15439) - Export Agent profiles as Markdown, preserving an empty agent prompt on export. (#15312, #15316) - Editable CodeMirror viewer for local files with document highlighting; BM25 search extended to file-backed documents. (#15247, #15298) - Default new Agent-doc files to `.md` and preserve IME composition; refresh folder data on slug switch and dedupe breadcrumb fetches. (#15335, #15427) --- ## 💬 Chat & User Experience - Group-by-status mode for the Topic sidebar; dropped the legacy session→agentId compatibility path from Topic queries. (#15366, #15378) - Restore editor focus after the file picker closes, and close the skill dropdown before navigating to settings. (#15391, #15394) - Strip markdown tokens from fallback Topic titles; keep an open ActionBar popup when hovering another message. (#15303, #15372) - Stabilize home starter loading and stop transliterating model names in the home starter; show artifact source while streaming. (#15310, #15324, #15386) - Group the sidebar spacer with recents and agents. (#15373) --- ## 📊 Analytics, Tasks & Notifications - Token-usage mode on the activity heatmap, backed by a denormalized topic usage/cost rollup. (#15365, #15417, #15425) - Push: new `PushChannel`, receipt cron, and `pushToken` tRPC API. (#15233) - Tasks now support file and image attachments. (#15141) --- ## 🧩 Models & Providers - Support Claude Opus 4.8 and configurable model routing with starters. (#15314, #15384) - MiniMax M3: new model entry and an Anthropic video runtime. (#15380, #15403) - Add `intern-s2-preview` with `thinking_mode`, and `step-3.7-flash` support. (#15308, #15317) - Block disabling the official provider; fix default provider setup in business mode. (#15379, #15382) --- ## 🎨 UI & Modals - Migrate modals to `@lobehub/ui/base-ui` (LOBE-9711 + eval batch), including the create-custom-model and feedback/changelog modals. (#15401, #15416) - Restructure confirmModal title and content across deletion flows; polish the service-model form and migrate its Switch to base-ui. (#15426, #15440) - Wrap the BlueBubbles bridge config into a connection card; update `@lobehub/ui` to v5.15.5. (#15325, #15342) --- ## 🔒 Reliability - Replace hardcoded `session_context` values with template variables in credentials. (#15352) - Point `CHANGELOG_URL` to `/changelog`. (#15428) --- ## 👥 Contributors Huge thanks to **11 contributors** who shipped **88 merged PRs** this cycle. @hezhijie0327 · @qybaihe · @sxjeru · @arvinxx · @Innei · @tjx666 · @lijian · @sudongyuer · @cy948 · @rivertwilight · @AmAzing129 Plus @lobehubbot and renovate[bot] for maintenance. --- **Full Changelog**: v2.2.1...release/weekly-20260604
💻 Change Type
🔗 Related Issue
🔀 Description of Change
When a new agent execution starts for a topic that still has a stale
runningOperationin its metadata (e.g. the browser was closed mid-stream and the topic was never cleared),useGatewayReconnectwould attempt to reconnect to the old operation concurrently with the new one, producing duplicate streaming events.Two fixes:
Optimistic store update — immediately after
executeGatewayAgentcreates the new operation, update the topic'srunningOperationto the new op ID and calldisconnectFromGatewayfor the stale op, so any live reconnect connection is torn down before the new WS opens.Reconnect guard — in
connectToGateway(via the reconnect path), skip the connection if the topic already has a newerrunningOperationID than the one we're about to reconnect. This handles the race where the reconnect fires afterexecuteGatewayAgenthas already updated the store.🧪 How to Test
runningOperationis persisted in topic metadata).📝 Additional Information
No breaking changes. The
internal_dispatchTopiccall is an existing pattern used elsewhere in the gateway actions.