S263 Handoff
Documentation for Sessions
S263 Technical Handoff
For: Next session agent / developer continuing this work Date: 2026-03-24 Branch:
session-260-265(shared with concurrent sessions) Compilation: Clean (only pre-existingSSEEventTypeerror invitto-engine.service.ts)
What Was Implemented
Intelligence Bridge (5 Gaps Fixed)
| Gap | File | Change |
|---|---|---|
| 1. No runtime intelligence | context-assembly.service.ts |
getLearningContext() injects patterns + golden decisions into system prompt |
| 2. Pattern dedup bug | pattern-mining.job.ts |
SHA-256 deterministic hash + upsert replaces charCode sum + Date.now() |
| 3. No decision categorization | ai-infrastructure.schema.ts, decision.service.ts |
Added domains[] and audience fields, computed on create |
| 4. Missing golden decisions | learning.service.ts |
getGoldenDecisionsForTask() added to getPyramidContext() |
| 5. No specialization sync | learning-sync.service.ts, backend-ai-client.service.ts |
getSpecializations() + daily cron sync to sub-agent definitions |
PVI V1 — Foundation
| Deliverable | Files |
|---|---|
| P0-A: ComponentTagging wiring | bundler-filesystem.service.ts |
| P0-B: SDK Manifest (10 → 46 components) | sdk-manifest.json |
| V1-1: Enhanced preview bridge | preview-bridge-client.ts, preview-bridge.service.ts |
| V1-2: SuggestionRuleEngine (20 rules) | suggestion-rule-engine.ts |
| V1-3: PviToolbar + PviSuggestionPanel | pvi-toolbar/, pvi-suggestion-panel/ |
| V1-4: Style apply engine | pvi-apply.service.ts |
| V1-5: Structural apply engine | pvi-apply.service.ts (TODO: wire LLM) |
| V1-6: Local undo | pvi-snapshot.service.ts |
PVI V2 — Intelligence + Learning
| Task | New/Modified Files |
|---|---|
| T1: Outbound PVI messaging | preview-bridge.service.ts (+sendPviMessage, +reinjectDots) |
| T2: Ambient dots state | pvi.service.ts (+ambientDots signal, +updateAmbientDots, +reinjectDotsAfterRecompile) |
| T3: Proactive analysis | NEW pvi-proactive-analysis.service.ts, studio-vitto-bridge.service.ts (+pviScan), studio-dock-shell.component.ts (wired to filesReadyForReview$) |
| T4: Chat summary | NEW pvi-chat-summary/ (3 files), studio-dock-shell.component.ts/.html |
| T5: Apply All | pvi-apply.service.ts (+applyAll with conflict detection) |
| T6: LLM enrichment | NEW pvi-enrichment.service.ts, studio-vitto-bridge.service.ts (+pviEnrich), pvi.service.ts (+enrichment trigger in selectCategory) |
| T7: Backend PVI module | NEW engine/pvi/ (pvi.module.ts, pvi.controller.ts, pvi-model-router.service.ts) |
| T8: Learning layer | NEW user-suggestion-tracker.service.ts, suggestion-weight.service.ts |
| T9: Timeline + Hetzner | NEW pvi-timeline/ (3 files), pvi-snapshot.service.ts (+pushToHetzner stub) |
PVI V3 — Mastery + Ecosystem
| Deliverable | New/Modified Files |
|---|---|
| V3-1: Opus escalation | pvi-model-router.service.ts (+shouldEscalateToOpus), pvi.controller.ts (+cross-module-analysis), studio-vitto-bridge.service.ts (+pviCrossModuleAnalysis), pvi-proactive-analysis.service.ts (+analyzeCrossModule) |
| V3-2: Feedback quality | user-suggestion-tracker.service.ts (+getQualityMetrics, +recordCompilationResult), suggestion-weight.service.ts (+getQualityAdjustedWeights), pvi.controller.ts (+quality-metrics, +compilation-result) |
| V3-3: Manifest pipeline | NEW tools/scripts/generate-sdk-manifest.ts, NEW ggs-button.intelligence.ts, package.json (+sdk:manifest script) |
| V3-4: Pipeline feedback | NEW pvi-pipeline-feedback.service.ts, pvi.controller.ts (+pipeline-feedback) |
| V3-5: Multi-selection | preview-bridge-client.ts (+Shift+click PVI_MULTI_SELECT), preview-bridge.service.ts (+pviMultiSelect$), pvi.service.ts (+multiSelection, +addToSelection, +updateMultiSelectionSuggestions), studio-dock-shell.component.ts |
| V3-6: Design evolution | NEW pvi-design-evolution.service.ts, pvi.controller.ts (+design-analytics, +token-usage) |
| V3-7: Team learning | NEW pvi-team-learning.service.ts, pvi.controller.ts (+team-metrics, +effective-weights) |
Backend PVI API Endpoints
All under engine/pvi/ prefix on backend-vitto-api (port 3003):
| Method | Path | Purpose | Status |
|---|---|---|---|
| POST | /engine/pvi/scan |
Component scan (parallel Haiku) | Stub (returns empty) |
| POST | /engine/pvi/enrich |
Category enrichment (Haiku/Sonnet) | Stub (returns empty) |
| POST | /engine/pvi/cross-module-analysis |
Cross-module Opus analysis | Stub (returns empty) |
| POST | /engine/pvi/track |
Record suggestion event | Working |
| GET | /engine/pvi/weights/:userId |
Get user weights | Working |
| GET | /engine/pvi/effective-weights/:userId/:spaceId |
Get effective weights (personal/org/default) | Working |
| GET | /engine/pvi/quality-metrics |
Undo rates, compilation success | Working |
| POST | /engine/pvi/compilation-result |
Record compilation outcome | Working |
| GET | /engine/pvi/pipeline-feedback |
Top patterns + anti-patterns | Working |
| GET | /engine/pvi/design-analytics |
Token usage analytics | Working |
| POST | /engine/pvi/token-usage |
Record token usage | Working |
| GET | /engine/pvi/team-metrics/:spaceId |
Team dashboard data | Working |
Known TODOs / Stubs
| Item | Location | What's Missing |
|---|---|---|
| LLM scan/enrich wiring | pvi.controller.ts scan + enrich endpoints |
Need to call BaseLLMProvider with PVI_ROUTES config |
| Structural apply LLM | pvi-apply.service.ts:applyStructural() |
Line ~100: TODO comment, needs sendVisualEditContext() integration |
| Hetzner snapshot push | pvi-snapshot.service.ts:pushToHetzner() |
Currently a setTimeout stub, needs UniverseGitService.commitFiles() |
| Remaining .intelligence.ts files | libs/core/ui-framework/src/lib/components/*/ |
Only ggs-button.intelligence.ts exists as template; run yarn sdk:manifest after creating more |
| Circular DI | pvi.service.ts → pvi-enrichment.service.ts |
Resolved via lazy Injector.get() — works but watch for Angular 20+ changes |
Cron Jobs Added
| Schedule | Service | Purpose |
|---|---|---|
| Daily 6AM | PviTeamLearningService.aggregateOrgWeights() |
Compute org-level weights from all user events |
| Daily 7AM | SuggestionWeightService.aggregateWeights() |
Compute per-user personalized weights |
| Monday 3AM | PviPipelineFeedbackService.generateWeeklyReport() |
Aggregate top patterns + anti-patterns for pipeline improvement |
MCP Intelligence Captured
- 8 decisions logged (architecture + implementation + milestone)
- 2 module outcomes (proactive-visual-intelligence: success, intelligence-bridge: success)
- 3 conventions added (two-phase analysis, backend module structure, ambient dot persistence)
- 1 reflection with 6 synthesized lessons
- Decision IDs: dev_1774365428242_wu60zp2, dev_1774365438616_0xklpgm, dev_1774365450206_32to0f5, dev_1774365470484_0j99siw, dev_1774365480079_m769a5q, dev_1774365491785_mp07acw, dev_1774365503651_6xo95tu, dev_1774365514453_hbcywpq
How to Test
- Restart both backends:
yarn serve:backend-ai+yarn serve:backend-vitto - Open Vitto Studio, select a universe, generate a platform
- Watch for: Ambient dots appearing after generation, chat summary with "Apply" buttons
- Click elements in the preview — toolbar should appear with category icons
- Click a category — suggestions appear, LLM enrichment triggers if <3 suggestions
- Click "Apply" — style changes instant, structural shows shimmer
- Ctrl+Z — undo restores previous state
- Check MongoDB
vitto-mind.pvi_user_eventsfor tracked events
Critical Dependencies
@libs-ai/proactive-visual-intelligencemust be importable from vitto-studiosdk-manifest.jsonmust be importable as a JSON module (tsconfigresolveJsonModule: true)- Backend PVI module registered in EngineModule imports
- PreviewBridgeService must be exported from
@libs-structural/platform-previewbarrel
Handoff generated: 2026-03-24 | S263.1-263.9