feat(core): New 'chat' execution mode for Chat hub (no-changelog)

[Cadiac]

Summary

This PR adds a new chat execution mode, to be used with chat workflow executions on the n8n Chat tool.
Before these executions were manual, but now they can be differentiated from other executions.

Also changed slightly how we invoke the executions, as the logic specific to manual executions doesn't apply anymore.

We can later filter executions by this execution mode.

Related Linear tickets, Github issues, and Community forum posts

https://linear.app/n8n/issue/CHA-24/new-execution-mode-for-chats

Review / Merge checklist

• PR title and summary are descriptive. (conventions)
• Docs updated or follow-up ticket created.
• Tests included.
• PR Labeled with release/backport (if the PR is an urgent fix that needs to be backported)

[bundlemon]

BundleMon

Unchanged files (2)

Status	Path	Size	Limits
✅	WASM Dependencies tree-sitter-bash.wasm	181.26KB	-
✅	WASM Dependencies tree-sitter.wasm	74.47KB	-

No change in files bundle size

Groups updated (2)

Status	Path	Size	Limits
✅	**/*.js	5.88MB (+472.65KB +8.52%)	-
✅	**/*.css	218.77KB (+5.51KB +2.58%)	-

Final result: ✅

View report in BundleMon website ➡️

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Current branch size history | Target branch size history

[codecov]

Codecov Report

❌ Patch coverage is 16.12903% with 52 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...kages/cli/src/modules/chat-hub/chat-hub.service.ts	2.08%	47 Missing ⚠️
...es/cli/src/workflows/workflow-execution.service.ts	0.00%	4 Missing ⚠️
...n-engine/node-execution-context/execute-context.ts	0.00%	1 Missing ⚠️

📢 Thoughts on this report? Let us know!

[cubic-dev-ai]

2 issues found across 9 files

Prompt for AI agents (all 2 issues)

Understand the root cause of the following 2 issues and fix them.


<file name="packages/cli/src/modules/chat-hub/chat-hub.service.ts">

<violation number="1" location="packages/cli/src/modules/chat-hub/chat-hub.service.ts:825">
Construction of `IRunExecutionData` for chat message workflows duplicates logic in `prepareCustomAgentWorkflow` and `prepareChatWorkflow`. This pattern should be extracted into a shared private helper function.</violation>
</file>

<file name="packages/frontend/editor-ui/src/features/execution/executions/components/global/GlobalExecutionsListItem.vue">

<violation number="1" location="packages/frontend/editor-ui/src/features/execution/executions/components/global/GlobalExecutionsListItem.vue:266">
Please source the tooltip content from locale.baseText (or equivalent i18n) instead of hardcoding English strings so these labels localize correctly.</violation>
</file>

_{React with 👍 or 👎 to teach cubic. Mention @cubic-dev-ai to give feedback, ask questions, or re-run the review.}

[cubic-dev-ai]

Construction of IRunExecutionData for chat message workflows duplicates logic in prepareCustomAgentWorkflow and prepareChatWorkflow. This pattern should be extracted into a shared private helper function.

Prompt for AI agents

Address the following comment on packages/cli/src/modules/chat-hub/chat-hub.service.ts at line 825:

<comment>Construction of `IRunExecutionData` for chat message workflows duplicates logic in `prepareCustomAgentWorkflow` and `prepareChatWorkflow`. This pattern should be extracted into a shared private helper function.</comment>

<file context>
@@ -797,42 +789,48 @@ export class ChatHubService {
+				waitingExecutionSource: {},
+			},
+			manualData: {
+				userId: user.id,
+			},
+		};
</file context>

[cubic-dev-ai]

Please source the tooltip content from locale.baseText (or equivalent i18n) instead of hardcoding English strings so these labels localize correctly.

Prompt for AI agents

Address the following comment on packages/frontend/editor-ui/src/features/execution/executions/components/global/GlobalExecutionsListItem.vue at line 266:

<comment>Please source the tooltip content from locale.baseText (or equivalent i18n) instead of hardcoding English strings so these labels localize correctly.</comment>

<file context>
@@ -263,7 +263,12 @@ async function handleActionItemClick(commandData: Command) {
 		&lt;/td&gt;
 		&lt;td&gt;
-			&lt;N8nIcon v-if=&quot;execution.mode === &#39;manual&#39;&quot; icon=&quot;flask-conical&quot; /&gt;
+			&lt;N8nTooltip v-if=&quot;execution.mode === &#39;manual&#39;&quot; content=&quot;Manual Execution&quot; placement=&quot;top&quot;&gt;
+				&lt;N8nIcon icon=&quot;flask-conical&quot; /&gt;
+			&lt;/N8nTooltip&gt;
</file context>

[autologie]

👍

[autologie]

what is this used for?

[Cadiac]

Not much, it's just execution metadata, this way it also gets passed also to queue workers in queue mode and gets copied to https://github.com/n8n-io/n8n/blob/master/packages/cli/src/scaling/job-processor.ts#L201 execution data here in that case I believe.

This is similar to what manual executions did before - chat executions should still count as executions triggered by users so I kept this

[currents-bot]

✅

E2E Tests: n8n tests passed after 7m 32.1s

🟢 584 · 🔴 0 · ⚪️ 12

View Run Details

Run Details

• Project: n8n

• Groups: 2

• Framework: Playwright

• Run Status: Passed

• Commit: 04632bf

• Spec files: 96

• Overall tests: 596

• Duration: 7m 32.1s

• Parallelization: 8

Groups

GroupId	Results	Spec Files Progress
ui	🟢 529 · 🔴 0 · ⚪️ 12	89 / 89
ui:isolated	🟢 55 · 🔴 0 · ⚪️ 0	7 / 7

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