Jesús Pérez d14150da75 feat: Phase 5.3 - Multi-Agent Learning Infrastructure
Implement intelligent agent learning from Knowledge Graph execution history
with per-task-type expertise tracking, recency bias, and learning curves.

## Phase 5.3 Implementation

### Learning Infrastructure ( Complete)
- LearningProfileService with per-task-type expertise metrics
- TaskTypeExpertise model tracking success_rate, confidence, learning curves
- Recency bias weighting: recent 7 days weighted 3x higher (exponential decay)
- Confidence scoring prevents overfitting: min(1.0, executions / 20)
- Learning curves computed from daily execution windows

### Agent Scoring Service ( Complete)
- Unified AgentScore combining SwarmCoordinator + learning profiles
- Scoring formula: 0.3*base + 0.5*expertise + 0.2*confidence
- Rank agents by combined score for intelligent assignment
- Support for recency-biased scoring (recent_success_rate)
- Methods: rank_agents, select_best, rank_agents_with_recency

### KG Integration ( Complete)
- KGPersistence::get_executions_for_task_type() - query by agent + task type
- KGPersistence::get_agent_executions() - all executions for agent
- Coordinator::load_learning_profile_from_kg() - core KG→Learning integration
- Coordinator::load_all_learning_profiles() - batch load for multiple agents
- Convert PersistedExecution → ExecutionData for learning calculations

### Agent Assignment Integration ( Complete)
- AgentCoordinator uses learning profiles for task assignment
- extract_task_type() infers task type from title/description
- assign_task() scores candidates using AgentScoringService
- Fallback to load-based selection if no learning data available
- Learning profiles stored in coordinator.learning_profiles RwLock

### Profile Adapter Enhancements ( Complete)
- create_learning_profile() - initialize empty profiles
- add_task_type_expertise() - set task-type expertise
- update_profile_with_learning() - update swarm profiles from learning

## Files Modified

### vapora-knowledge-graph/src/persistence.rs (+30 lines)
- get_executions_for_task_type(agent_id, task_type, limit)
- get_agent_executions(agent_id, limit)

### vapora-agents/src/coordinator.rs (+100 lines)
- load_learning_profile_from_kg() - core KG integration method
- load_all_learning_profiles() - batch loading for agents
- assign_task() already uses learning-based scoring via AgentScoringService

### Existing Complete Implementation
- vapora-knowledge-graph/src/learning.rs - calculation functions
- vapora-agents/src/learning_profile.rs - data structures and expertise
- vapora-agents/src/scoring.rs - unified scoring service
- vapora-agents/src/profile_adapter.rs - adapter methods

## Tests Passing
- learning_profile: 7 tests 
- scoring: 5 tests 
- profile_adapter: 6 tests 
- coordinator: learning-specific tests 

## Data Flow
1. Task arrives → AgentCoordinator::assign_task()
2. Extract task_type from description
3. Query KG for task-type executions (load_learning_profile_from_kg)
4. Calculate expertise with recency bias
5. Score candidates (SwarmCoordinator + learning)
6. Assign to top-scored agent
7. Execution result → KG → Update learning profiles

## Key Design Decisions
 Recency bias: 7-day half-life with 3x weight for recent performance
 Confidence scoring: min(1.0, total_executions / 20) prevents overfitting
 Hierarchical scoring: 30% base load, 50% expertise, 20% confidence
 KG query limit: 100 recent executions per task-type for performance
 Async loading: load_learning_profile_from_kg supports concurrent loads

## Next: Phase 5.4 - Cost Optimization
Ready to implement budget enforcement and cost-aware provider selection.
2026-01-11 13:03:53 +00:00

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TOML

[taskserv]
name = "vapora-agents"
type = "agent-orchestrator"
version = "0.2.0"
description = "VAPORA Agent Runtime (12 specialized roles)"
[source]
repository = "ssh://git@repo.jesusperez.pro:32225/jesus/Vapora.git"
branch = "main"
path = "vapora-agents/"
[build]
runtime = "rust"
build_command = "cargo build --release -p vapora-agents"
[deployment]
namespace = "vapora-agents"
replicas = 3
image = "vapora/agents"
image_tag = "${version}"
[ports]
service = 8089
metrics = 9090
[resources]
requests = { cpu = "4000m", memory = "8Gi" }
limits = { cpu = "8000m", memory = "16Gi" }
[agent_pool]
# Agents deployed by this taskserv
agents = [
"architect", "developer", "code-reviewer", "tester",
"documenter", "marketer", "presenter",
"devops", "monitor", "security",
"project-manager", "decision-maker", "orchestrator"
]
max_concurrent_agents = 50
queue_depth_warning = 100
[dependencies]
required = ["nats", "surrealdb"]
optional = ["mcp-gateway", "llm-router"]
[environment]
NATS_URL = "nats://nats-0.vapora-system:4222"
DATABASE_URL = "surrealdb://surrealdb-0.vapora-system:8000"
AGENT_REGISTER_INTERVAL_SECS = "30"
HEALTH_CHECK_INTERVAL_SECS = "15"
RUST_LOG = "debug,vapora_agents=trace"
[secrets]
CLAUDE_API_KEY = "secret:vapora-secrets:claude-api-key"
OPENAI_API_KEY = "secret:vapora-secrets:openai-api-key"
GEMINI_API_KEY = "secret:vapora-secrets:gemini-api-key"
ANTHROPIC_KEY = "secret:vapora-secrets:anthropic-key"
[scaling]
min_replicas = 3
max_replicas = 20
target_cpu = 75
target_memory = 80
scale_down_delay_secs = 300
[health_check]
type = "http"
path = "/health"
interval_secs = 10
timeout_secs = 5
failure_threshold = 3
[persistence]
enabled = true
size = "20Gi"
storage_class = "ssd"
mount_path = "/agent-state"
[update_strategy]
type = "RollingUpdate"
max_surge = 2
max_unavailable = 0
min_ready_seconds = 60
[monitoring]
prometheus_metrics = true
trace_sampling = 0.1