Terraphim Rlm

Terraphim RLM

Recursive Language Model orchestration with sandboxed code execution.

Core Concepts

• TerraphimRlm: Main entry point - manages sessions, execution, and budget tracking
• ExecutionEnvironment: Trait for different backends (Firecracker, Docker, Local)
• Session: Isolated execution context with VM affinity, snapshots, and budget
• BudgetTracker: Dual budget (tokens + time) prevents runaway execution

Quick Start

use terraphim_rlm::{TerraphimRlm, RlmConfig};

let config = RlmConfig::default();
let rlm = TerraphimRlm::new(config).await?;

let session = rlm.create_session().await?;
let result = rlm.execute_code(&session.id, "print('Hello, RLM!')").await?;
let result = rlm.execute_command(&session.id, "ls -la").await?;

Execution Backends

LocalExecutor selected when: no KVM, no Docker, or explicitly configured.

Session Management

// Create session
let session = rlm.create_session().await?;

// Set context variables (accessible via FINAL_VAR in code)
rlm.set_context_variable(&session.id, "MY_VAR", "value")?;

// Get context
let value = rlm.get_context_variable(&session.id, "MY_VAR")?;

// Extend session duration
let extended = rlm.extend_session(&session.id)?;

// Destroy session
rlm.destroy_session(&session.id).await?;

Code Execution

// Execute Python
let result = rlm.execute_code(&session.id, "print('hello')").await?;

// Execute bash command
let result = rlm.execute_command(&session.id, "echo $HOME").await?;

// Full RLM query loop (LLM → parse → execute → feedback)
let query_result = rlm.query(&session.id, "Calculate fibonacci").await?;

Snapshots

// Create snapshot (rollback point)
let snapshot = rlm.create_snapshot(&session.id, "checkpoint_1").await?;

// Restore to snapshot
rlm.restore_snapshot(&session.id, "checkpoint_1").await?;

// List snapshots
let snapshots = rlm.list_snapshots(&session.id).await?;

Configuration

let config = RlmConfig::minimal(); // For testing with mock executor

// Or with custom settings
let config = RlmConfig {
    token_budget: 100_000,
    time_budget_ms: 300_000,
    max_recursion_depth: 10,
    backend_preference: vec![BackendType::Local], // Force local
    ..Default::default()
};

MCP Tools (with mcp feature)

When terraphim_rlm built with mcp feature, exposes MCP tools:

• rlm_bash - Execute bash commands
• rlm_code - Execute Python code
• rlm_context - Get/set session context
• rlm_snapshot - Snapshot/restore sessions
• rlm_query - Full RLM query loop

Key Files

• crates/terraphim_rlm/src/rlm.rs - Main TerraphimRlm API
• crates/terraphim_rlm/src/executor/local.rs - LocalExecutor (no isolation)
• crates/terraphim_rlm/src/executor/firecracker.rs - FirecrackerExecutor (full VM)
• crates/terraphim_rlm/src/session.rs - SessionManager
• crates/terraphim_rlm/src/budget.rs - BudgetTracker