Sessions 163-166 — Technical Changelog

Session 163: Super Vitto Phase 2

Backend (backend-vitto-api)

Schema Changes:

• vitto-memory.schema.ts — Added consolidated: boolean field + index for tracking synthesized memories

Memory System Enhancements:

• vitto-memory.service.ts:
  • Injected ProviderFactoryService (@Optional) for LLM-powered synthesis
  • llmSynthesize() — calls LLM to synthesize N summaries into 1 insight (fallback to concat)
  • consolidateConversations() — now creates type: 'learning' memories at importance 0.9, marks originals as consolidated: true instead of deleting
  • consolidateByType() — same treatment for non-conversation memory types
  • recallRecent() — split into tier-1 (5 synthesis) + tier-2 (15 recent), sorted by type priority
  • remember() — auto-sets decayProtected: true for corrections and when metadata.decayProtected is set

Context Assembly:

• context-assembly.service.ts:
  • Predictive Context Loading (S1) — semantic recall using user's actual message before building prompt
  • Merges 8 semantically relevant + 12 recent memories (deduped)
  • Context window budget monitoring — warns at 40K tokens
  • Conversation threading (Gap E) — keyword-based topic detection filters irrelevant history on topic switch
  • extractKeywords() — stop-word-filtered keyword extraction for topic scoring

New Services:

• agent-shadow.service.ts — Second-opinion pattern for high-stakes tool calls (SAFE/RISKY/WRONG evaluation)
• learning-sync.service.ts — Daily 6AM cron: enriches sub-agents with golden decisions as knowledge docs
• agent-seed.service.ts — Seeds 4 system agents (Module Generator, Widget Creator, Architecture Expert, Code Quality Expert) as executable SubAgentDefinitions

Engine:

• slash-command.service.ts — Added /correct handler (creates correction memory with importance 1.0, decayProtected)
• vitto.controller.ts:
  • POST /engine/corrections — user correction endpoint
  • GET /engine/trust-summary — simplified trust for end users
  • GET /engine/personas/marketplace + POST /publish + POST /rate — persona marketplace
  • GET /engine/agents/registry — unified agent registry
• trust-escalation.service.ts — getUserTrustSummary() with weighted confidence and label
• persona.service.ts — visibility, usageCount, rating, ratingCount fields + marketplace/publish/rate methods
• mind.service.ts — runDiaryGeneration() cron at 5:30AM for proactive self-reflection
• user-knowledge.service.ts — Cross-space knowledge transfer in recallAboutUser()

Frontend (libs-ai/vitto-hub, libs-ai/vitto-chat)

New Components (12 files):

• brain/core-viewer/ — Read-only display of Vitto's identity rules (NEVER/ALWAYS/channel rules)
• brain/intelligence-tab/ — Wraps SpecializationMatrixComponent
• brain/event-log/ — Real-time SSE event stream viewer with filtering
• brain/diary-viewer/ — Timeline of Vitto's daily diary entries
• brain/trust-summary/ — Confidence ring + action breakdown + user-facing explainer
• skill-studio/skill-composer/ — DAG viewer + validator for composite skills

Modified Components:

• brain-page/vitto-brain-page.component.html — 5 → 11 tabs
• persona-selector/ — Added Marketplace tab (browse/search/rate/publish)
• memory-manager/ — Thumbnail grid for visual memories + full-size modal
• message-actions/ — "Mark incorrect" button
• unified-message/ — Inline correction form (textarea + submit)
• chat-shell/ — Wired (correctionSubmitted) to VittoApiService.submitCorrection()
• system-prompt-preview/ — Context budget bar (healthy/warning/critical)

API Service:

• vitto-api.service.ts — Added: submitCorrection(), getTrustSummary(), getPersonaMarketplace(), publishPersona(), ratePersona()

Routes:

• vitto-hub.routes.ts — Added 6 child routes under brain: core, intelligence, persona, events, diary, trust-summary

Session 166: Unified Agent Architecture

Phase 1: Learning Pipeline → Vitto

Files modified:

• backend-ai-client.service.ts — Added getLearningIntelligence() typed wrapper (2s timeout, graceful degradation)
• context-assembly.service.ts — Fetches platform intelligence in parallel, builds PLATFORM INTELLIGENCE prompt section with rules + patterns + similar decisions (capped at 2000 tokens)
• sub-agent.service.ts — buildSystemPrompt() accepts optional learning context; spawnFromDefinition() fetches intelligence for sub-agents

Phase 2: Outcomes → Learning Pipeline

Files modified:

• vitto-engine.service.ts — Posts postExecutionOutcome() after every task completion
• delegation-manager.service.ts — Generates synthetic training examples from successful delegations, logs decisions to backend-ai-api

Files created:

• learning-sync.service.ts — Daily 6AM cron enriching sub-agents with golden decisions
• agent-seed.service.ts — Seeds 4 system agents on startup

Phase 3: Platform as Field

Files modified:

• MCP/mcp-gograb-ai/src/agents/agent-router.ts — getAgentId() returns {type}-agent (removed cursor- prefix)
• APIs/backend-ai-api/src/app/schemas/handoff.schema.ts — Added platform?: string field, expanded toAgentType from 3 to 12 values

Phase 4: Unified Registry + Handoff Expansion

Files modified:

• vitto.controller.ts — Added GET /engine/agents/registry, GET /engine/agents/registry/:id
• tool-registry.service.ts — create_handoff tool now supports all 12 agent roles
• vitto-client.service.ts — Added getAgentRegistry() method
• agents.controller.ts — Replaced 3 TODO stubs with real Vitto proxies + added GET /agents/registry
• agents.module.ts — Added HttpModule + VittoClientService as direct provider (avoids OrchestrationModule circular dep)

Phase 5: Dead Code Removal

• POST /agents/tasks — was TODO stub, now proxies to VittoClientService.orchestrate()
• GET /agents/tasks — was empty array, now proxies to VittoClientService.getActiveTasks()
• GET /agents/tasks/:id — was 404 throw, now proxies to VittoClientService.getTaskStatus()

Tests

File: unified-agent-architecture.spec.ts — 19 tests covering:

• Learning context injection (with/without/cap/graceful failure)
• Agent seeding (4 agents, no re-seed, correct roles, real standards)
• Learning sync (skip empty, sync patterns, skip inactive, no duplicates, cap at 10)
• Handoff type expansion (backwards-compatible)
• Agent registry capabilities (derived from tools)
• Platform-agnostic agent IDs (legacy mapping)

Remaining Gaps