Terraphim Evolution

Terraphim Agent Evolution Skill

Overview

The ADF orchestrator tracks agent evolution via terraphim_agent_evolution. Each agent accumulates versioned memory, task history, and lessons across runs. This is supplementary to the existing SharedLearningStore -- evolution adds structured memory hierarchy (short-term, long-term, episodic, semantic) while SharedLearningStore provides trust-based lesson injection (L0-L3).

Architecture

AgentOrchestrator
  +-- evolution_manager: EvolutionManager
       +-- systems: HashMap<AgentId, AgentEvolutionSystem>
            +-- memory: MemoryEvolution (short/long/working/episodic/semantic)
            +-- tasks: TasksEvolution (pending/in_progress/completed/blocked)
            +-- lessons: LessonsEvolution (technical/process/domain/failure/success)

Configuration

Enable in orchestrator.toml:

[evolution]
enabled = true
max_memory_tokens = 1500
max_snapshots_per_agent = 100
consolidation_interval_ticks = 200

[[agents]]
name = "security-sentinel"
evolution_enabled = true

Requires evolution Cargo feature: cargo build --features evolution.

Data Flow

1. Agent spawn: Evolution context injected into prompt (recent memories, long-term summary, episodes)
2. Agent output: stdout/stderr events recorded as MemoryItem entries
3. Agent exit: Evolution snapshot created, key stored in HandoffContext
4. Periodic: Memory consolidation promotes high-importance short-term to long-term

Key Files

Querying Evolution State

Use the evolution crate's viewer module for analysis:

use terraphim_agent_evolution::viewer::MemoryEvolutionViewer;

let viewer = MemoryEvolutionViewer::new("agent-name".to_string());
let timeline = viewer.get_timeline(&system, start, end).await?;
let insights = viewer.get_insights(&system, TimePeriod::LastWeek).await?;

Integration Points

• HandoffContext.evolution_snapshot_key -- carries snapshot reference between agents
• EvolutionManager::render_context() -- generates Markdown context for prompts
• EvolutionManager::snapshot_on_exit() -- persists state on agent completion
• reconcile_tick() consolidation step -- periodic memory promotion