Files
letta-code/.letta/memory-utils/backup-memory.ts
Kevin Lin d1e5e89841 feat: memory subagent (#498)
Co-authored-by: Letta <noreply@letta.com>
2026-01-09 18:14:51 -08:00

137 lines
3.9 KiB
TypeScript
Executable File

#!/usr/bin/env bun
/**
* Backup Memory Blocks to Local Files
*
* Exports all memory blocks from an agent to local files for checkpointing and editing.
* Creates a timestamped backup directory with:
* - Individual .md files for each memory block
* - manifest.json with metadata
*
* Usage:
* bun .letta/memory-utils/backup-memory.ts <agent-id> [backup-dir]
*
* Example:
* bun .letta/memory-utils/backup-memory.ts agent-abc123
* bun .letta/memory-utils/backup-memory.ts $LETTA_PARENT_AGENT_ID .letta/backups/working
*/
import { writeFile, mkdir } from "node:fs/promises";
import { join } from "node:path";
import { getClient } from "../../src/agent/client";
import { settingsManager } from "../../src/settings-manager";
interface BackupManifest {
agent_id: string;
timestamp: string;
backup_path: string;
blocks: Array<{
id: string;
label: string;
filename: string;
limit: number;
value_length: number;
}>;
}
async function backupMemory(agentId: string, backupDir?: string): Promise<string> {
await settingsManager.initialize();
const client = await getClient();
// Create backup directory
const timestamp = new Date().toISOString().replace(/[:.]/g, "-");
const defaultBackupDir = join(process.cwd(), ".letta", "backups", agentId, timestamp);
const backupPath = backupDir || defaultBackupDir;
await mkdir(backupPath, { recursive: true });
console.log(`Backing up memory blocks for agent ${agentId}...`);
console.log(`Backup location: ${backupPath}`);
// Get all memory blocks
const blocksResponse = await client.agents.blocks.list(agentId);
const blocks = Array.isArray(blocksResponse)
? blocksResponse
: (blocksResponse.items || blocksResponse.blocks || []);
console.log(`Found ${blocks.length} memory blocks`);
// Export each block to a file
const manifest: BackupManifest = {
agent_id: agentId,
timestamp: new Date().toISOString(),
backup_path: backupPath,
blocks: [],
};
for (const block of blocks) {
const label = block.label || `block-${block.id}`;
const filename = `${label}.md`;
const filepath = join(backupPath, filename);
// Write block content to file
const content = block.value || "";
await writeFile(filepath, content, "utf-8");
console.log(`${label} -> ${filename} (${content.length} chars)`);
// Add to manifest
manifest.blocks.push({
id: block.id,
label,
filename,
limit: block.limit || 0,
value_length: content.length,
});
}
// Write manifest
const manifestPath = join(backupPath, "manifest.json");
await writeFile(manifestPath, JSON.stringify(manifest, null, 2), "utf-8");
console.log(` ✓ manifest.json`);
console.log(`\n✅ Backup complete: ${backupPath}`);
return backupPath;
}
// CLI Entry Point
if (import.meta.main) {
const args = process.argv.slice(2);
if (args.length === 0 || args[0] === "--help" || args[0] === "-h") {
console.log(`
Usage: bun .letta/memory-utils/backup-memory.ts <agent-id> [backup-dir]
Arguments:
agent-id Agent ID to backup (can use $LETTA_PARENT_AGENT_ID)
backup-dir Optional custom backup directory
Default: .letta/backups/<agent-id>/<timestamp>
Examples:
bun .letta/memory-utils/backup-memory.ts agent-abc123
bun .letta/memory-utils/backup-memory.ts $LETTA_PARENT_AGENT_ID
bun .letta/memory-utils/backup-memory.ts agent-abc123 .letta/backups/working
`);
process.exit(0);
}
const agentId = args[0];
const backupDir = args[1];
if (!agentId) {
console.error("Error: agent-id is required");
process.exit(1);
}
backupMemory(agentId, backupDir)
.then((path) => {
// Output just the path for easy capture in scripts
console.log(path);
})
.catch((error) => {
console.error("Error backing up memory:", error.message);
process.exit(1);
});
}
export { backupMemory, type BackupManifest };