refactor: v2 - ai assistant - split editor and view agent implementations

[maxy-shpfy]

Description

Introduces a dedicated Run View AI assistant worker alongside the existing Editor worker, splitting what was a single monolithic worker.ts into a shared factory (createWorkerApi) and two page-specific entry points (editorWorker.ts, runViewWorker.ts).

The core dispatcher logic is extracted into dispatcherRuntime.ts so both the Editor and Run View dispatchers share the same MemorySession management and invoke loop. The Editor dispatcher (editorDispatcher.ts) retains the full set of specialist sub-agents (general help, pipeline repair, pipeline architect, debug assistant), while the new Run View dispatcher (runViewDispatcher.ts) is intentionally read-only, exposing only general help and debug assistant.

An AgentContext discriminated union ({ mode: "editor" } | { mode: "runView"; runId; subgraphExecutionId? }) is introduced and threaded from the page through AiChatStoreProvider → AiChatStore → AgentThread → AgentClient → worker.init(). The Run View dispatcher uses this context to inject the active run id directly into its system prompt, so the agent is immediately aware of which run it is inspecting without requiring the user to restate it.

AiChatStoreProvider now accepts a createWorker factory prop so each page (Editor, Run View) owns spawning its own worker with a statically analyzable URL for Vite's worker bundling.

A new system prompt (runViewDispatcher.md) defines the Run View assistant's read-only persona, routing rules, and style guidelines.

Related Issue and Pull requests

Type of Change

• Bug fix
• New feature
• Improvement
• Cleanup/Refactor
• Breaking change
• Documentation update

Checklist

• I have tested this does not break current pipelines / runs functionality
• I have tested the changes on staging

Screenshots (if applicable)

Demo of AI - run view dedicated.mov (uploaded via Graphite)

Test Instructions

1. Open the pipeline Editor and open the AI chat panel. Confirm the assistant responds as before with the full set of capabilities (pipeline repair, architect, debug, general help).
2. Open a completed pipeline Run View and open the AI chat panel. Confirm the assistant is aware of the active run id without being told, and that it refuses mutation requests (edit, rerun) with an appropriate read-only message.
3. Ask the Run View assistant to explain the current run — confirm it routes to the debug assistant and returns run-specific information.
4. Verify that opening both the Editor and Run View simultaneously spawns two separate workers (tangle-editor-agent and tangle-run-view-agent) visible in browser DevTools.

Additional Comments

The knip.json entry points are updated to reflect the two new worker entry files, replacing the old single worker.ts entry.

[maxy-shpfy]

• feat: v2 - tangent - connect dashboard to experiment scenarios #2387
• feat: v2 - tangent - progress update poll #2386
• feat: v2 - tangent - persist url to research session in opencode agent #2371
• feat: v2 - tangent - facelift for run details panel #2369
• feat: v2 - tangent - suggest optimization button #2368
• feat: v2 - tangent - optimization scenario card condensed #2367
• fix: v2 - tangent - cors worker load #2364
• feat: v2 - tangent - autoresearch run #2363
• feat: v2 - tangent - scenarios window #2362
• feat: v2 - ai assistant - tangent researcher subagent #2361
• poc: scaffold basic tangent dashboard ux #2360
• chore: generate api sdk from tangent #2359
• refactor: v2 - run view - run menu #2358
• refactor: v2 - run view - windows top menu #2357
• refactor: v2 - ai assistant - split editor and view agent implementations #2356 👈 (View in Graphite)
• refactor: v2 - ai assistant - introduce agentthread primitive #2355
• refactor: v2 - ai assistant - basic chat in RunView #2354
• refactor: v2 - ai assistant - move ai chat components to shared space #2353
• fix: v2 - window state for startVisible #2352
• master

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[github-actions]

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A preview build has been created at: 06-02-refactor_v2_-_ai_assistant_-_split_editor_and_view_agent_implementations/ba6f227

[maxy-shpfy]

Merge activity

• Jun 10, 11:59 PM UTC: A user started a stack merge that includes this pull request via Graphite.
• Jun 11, 12:04 AM UTC: Graphite couldn't merge this pull request because a downstack PR refactor: v2 - ai assistant - move ai chat components to shared space #2353 failed to merge.
• Jun 11, 6:05 AM UTC: A user started a stack merge that includes this pull request via Graphite.
• Jun 11, 6:18 AM UTC: Graphite rebased this pull request as part of a merge.
• Jun 11, 6:21 AM UTC: @maxy-shpfy merged this pull request with Graphite.