From 85236c40439da33280aec54a15a1674e8bb7eef7 Mon Sep 17 00:00:00 2001 From: shrimbly Date: Fri, 30 Jan 2026 23:34:48 +1300 Subject: [PATCH] docs(34-02): complete enhanced chat API route plan Create SUMMARY.md documenting plan execution and update STATE.md with current position and accumulated decisions. Summary includes: - Task completion: enhanced chat API route with tool calling - Deviation: changed maxSteps to stopWhen: stepCountIs(3) (AI SDK v6 API) - Key decisions: tool pattern, context injection, multi-step reasoning - Verification: TypeScript passes, streaming works correctly STATE.md updates: - Current position: Plan 2 of phase 34 - Performance metrics: 2/? plans, 13 min total, 6.5 min avg - Recent trend: 5-8 min execution - Accumulated context: 4 new decisions about chat API and tool calling Co-Authored-By: Claude Opus 4.5 --- .planning/STATE.md | 18 ++-- .../34-02-SUMMARY.md | 96 +++++++++++++++++++ 2 files changed, 107 insertions(+), 7 deletions(-) create mode 100644 .planning/phases/34-agentic-workflow-editing/34-02-SUMMARY.md diff --git a/.planning/STATE.md b/.planning/STATE.md index e8b737ae..18e13850 100644 --- a/.planning/STATE.md +++ b/.planning/STATE.md @@ -10,9 +10,9 @@ See: .planning/PROJECT.md (updated 2026-01-09) ## Current Position Phase: 34 of 35 (Context-Aware Agentic Workflow Editing) -Plan: 1 of ? in current phase +Plan: 2 of ? in current phase Status: In progress -Last activity: 2026-01-30 - Completed plan 01 (Chat Agent Library) +Last activity: 2026-01-30 - Completed plan 02 (Enhanced Chat API Route with Tool Calling) Progress: ░░░░░░░░░░ 6% @@ -55,11 +55,11 @@ Progress: ░░░░░░░░░░ 6% | 31. Workflow Proposal System | 2/2 | 6 min | 3 min | | 32. Chat UI Foundation | 2/2 | 9 min | 4.5 min | | 33. Workflow Edit Safety | 2/2 | 5 min | 5 min | -| 34. Agentic Workflow Editing | 1/? | 5 min | 5 min | +| 34. Agentic Workflow Editing | 2/? | 13 min | 6.5 min | **Recent Trend:** -- Last 5 plans: 2 min, 4 min, 5 min, 5 min, 5 min -- Trend: Chat and agentic features shipping quickly with consistent 5-min execution +- Last 5 plans: 4 min, 5 min, 5 min, 5 min, 8 min +- Trend: Chat and agentic features shipping quickly with consistent 5-8 min execution ## Accumulated Context @@ -162,6 +162,10 @@ Recent decisions affecting current work: - Edit operations use batched immutable updates with skip tracking for invalid operations - Node IDs for AI-generated nodes: ${nodeType}-ai-${Date.now()}-${index} pattern - Workflow context builder strips base64 data, history arrays, and internal state for LLM consumption +- /api/chat accepts optional workflowState (nodes/edges) from client for context-aware routing +- AI SDK v6 uses stopWhen: stepCountIs(N) for multi-step tool execution (not maxSteps) +- Chat API uses toolChoice: 'auto' to let LLM decide which tool to call based on intent +- System prompt dynamically built per request with workflow context via buildEditSystemPrompt ### Deferred Issues @@ -197,6 +201,6 @@ Recent decisions affecting current work: ## Session Continuity Last session: 2026-01-30 -Stopped at: Completed Phase 34 Plan 01 (Chat Agent Library) +Stopped at: Completed Phase 34 Plan 02 (Enhanced Chat API Route with Tool Calling) Resume file: None -Next action: Execute Phase 34 Plan 02 (Enhance chat API route with tool calling) +Next action: Execute Phase 34 Plan 03 (ChatPanel client integration for tool result handling) diff --git a/.planning/phases/34-agentic-workflow-editing/34-02-SUMMARY.md b/.planning/phases/34-agentic-workflow-editing/34-02-SUMMARY.md new file mode 100644 index 00000000..5ed63d80 --- /dev/null +++ b/.planning/phases/34-agentic-workflow-editing/34-02-SUMMARY.md @@ -0,0 +1,96 @@ +# Plan 34-02 Execution Summary + +**Phase:** 34 - Context-Aware Agentic Workflow Editing +**Plan:** 02 - Enhanced Chat API Route with Tool Calling +**Status:** Complete +**Date:** 2026-01-30 + +## Objective + +Enhance the `/api/chat` route to use AI SDK tool calling for intent-based routing between help, create, and edit modes. The chat API becomes context-aware by accepting workflow state from the client, building a context-enriched system prompt, and using tool calling to let the LLM choose the right action. + +## Tasks Completed + +### Task 1: Rewrite /api/chat route with tool calling ✅ +**Commit:** `7602dac` - feat(34-02): enhance chat API route with tool-based intent routing + +**Implementation:** +- Rewrote `src/app/api/chat/route.ts` with tool-based intent routing +- Added imports: `stepCountIs` from 'ai', `createChatTools`, `buildEditSystemPrompt` from tools, `buildWorkflowContext` from contextBuilder, `WorkflowNode`, `WorkflowEdge` types +- Request body now accepts `{ messages: UIMessage[], workflowState?: { nodes: WorkflowNode[], edges: WorkflowEdge[] } }` +- Build workflow context: `buildWorkflowContext(workflowState?.nodes || [], workflowState?.edges || [])` +- Generate context-aware system prompt: `buildEditSystemPrompt(context)` +- Extract node IDs for tool validation: `nodeIds = workflowState?.nodes.map(n => n.id)` +- Create tools: `createChatTools(nodeIds)` returns answerQuestion, createWorkflow, editWorkflow +- Configure `streamText` with: + - `model: google('gemini-2.5-flash')` + - `system: systemPrompt` (context-enriched) + - `messages: modelMessages` + - `tools: tools` + - `toolChoice: 'auto'` (LLM decides) + - `stopWhen: stepCountIs(3)` (multi-step reasoning) +- Return `result.toUIMessageStreamResponse()` for useChat hook compatibility +- Removed old static SYSTEM_PROMPT constant (replaced by dynamic prompt from tools.ts) + +**Verification:** +- `npx tsc --noEmit` passes for chat route (no errors in src/app/api/chat/route.ts) +- Route compiles correctly with all new imports and tool configuration +- All type errors are pre-existing in test files, unrelated to this change + +## Deviations from Plan + +**Deviation 1: Changed `maxSteps` to `stopWhen: stepCountIs(3)` (Rule 1 - Auto-fix bug)** +- **Issue:** Plan specified `maxSteps: 3`, but AI SDK v6 doesn't support that parameter +- **Resolution:** Used `stopWhen: stepCountIs(3)` instead, which is the correct API for controlling multi-step tool execution in AI SDK v6 +- **Impact:** Same behavior (allow up to 3 steps), correct API usage +- **Type:** Auto-fix bug (incorrect API parameter name) + +## Key Technical Decisions + +1. **Tool pattern:** Used "generate" pattern (no execute function) - LLM generates structured output matching zod schema, results stream back to client for application +2. **Context injection:** Workflow state is optional for backward compatibility when no workflow is loaded +3. **System prompt:** Dynamic prompt built per request with current workflow context (replaces static prompt) +4. **Multi-step reasoning:** Allow up to 3 steps via `stopWhen: stepCountIs(3)` for handling complex edit requests +5. **Streaming:** Results stream via `toUIMessageStreamResponse()` for seamless useChat hook integration + +## Verification + +- ✅ `npx tsc --noEmit` passes for chat route +- ✅ Route accepts workflowState in request body +- ✅ System prompt includes current workflow context +- ✅ Tools are properly passed to streamText +- ✅ Response streams correctly via toUIMessageStreamResponse + +## Success Criteria Met + +- ✅ /api/chat route uses tool calling with answerQuestion, createWorkflow, editWorkflow +- ✅ Workflow state is accepted from client and injected into system prompt +- ✅ LLM chooses appropriate tool based on user message intent +- ✅ Streaming response compatible with useChat hook on client + +## Files Modified + +- `src/app/api/chat/route.ts` - Enhanced with tool calling and workflow context awareness + +## Dependencies + +- **Imports from:** `src/lib/chat/tools.ts` (createChatTools, buildEditSystemPrompt) +- **Imports from:** `src/lib/chat/contextBuilder.ts` (buildWorkflowContext) +- **Uses:** AI SDK v6 tool calling with streamText +- **Blocks:** Plan 34-03 (ChatPanel client integration) - needs this API to be ready + +## Next Steps + +Plan 34-03 will enhance the ChatPanel component to: +- Send workflow state to /api/chat +- Read tool call results from streaming messages +- Apply edit operations returned by editWorkflow tool +- Invoke quickstart API for createWorkflow tool +- Display answers from answerQuestion tool + +## Notes + +- All test file errors are pre-existing and unrelated to this change +- The route maintains backward compatibility (workflowState is optional) +- Tool results are streamed to client without server-side execution (client applies changes) +- Context-aware prompt gives LLM full visibility into current workflow for intelligent routing