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Add agent-memory provider #23
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| import type { | ||
| Provider, | ||
| ProviderConfig, | ||
| IngestOptions, | ||
| IngestResult, | ||
| SearchOptions, | ||
| IndexingProgressCallback, | ||
| } from "../../types/provider" | ||
| import type { UnifiedSession } from "../../types/unified" | ||
| import { logger } from "../../utils/logger" | ||
| import { AGENT_MEMORY_PROMPTS } from "./prompts" | ||
|
|
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| /** | ||
| * agent-memory provider for MemoryBench. | ||
| * | ||
| * Connects to a local agent-memory bench server (Python HTTP wrapper). | ||
| * The server manages per-container SQLite databases with semantic embeddings | ||
| * and graph-based memory relationships. | ||
| * | ||
| * Start the server: python -m agent_memory.bench_server --port 9876 | ||
| */ | ||
| export class AgentMemoryProvider implements Provider { | ||
| name = "agent-memory" | ||
| prompts = AGENT_MEMORY_PROMPTS | ||
| concurrency = { | ||
| default: 10, // Local, so moderate concurrency | ||
| } | ||
| private baseUrl: string = "http://127.0.0.1:9876" | ||
|
|
||
| async initialize(config: ProviderConfig): Promise<void> { | ||
| if (config.baseUrl) { | ||
| this.baseUrl = config.baseUrl | ||
| } | ||
|
|
||
| // Health check | ||
| try { | ||
| const res = await fetch(`${this.baseUrl}/health`) | ||
| if (!res.ok) throw new Error(`HTTP ${res.status}`) | ||
| const data = await res.json() as { status: string } | ||
| logger.info(`Connected to agent-memory bench server: ${data.status}`) | ||
| } catch (e) { | ||
| throw new Error( | ||
| `Cannot connect to agent-memory bench server at ${this.baseUrl}. ` + | ||
| `Start it with: python -m agent_memory.bench_server --port 9876\n` + | ||
| `Error: ${e}` | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| async ingest(sessions: UnifiedSession[], options: IngestOptions): Promise<IngestResult> { | ||
| // Send sessions in batches to avoid overwhelming the server | ||
| const batchSize = 5 | ||
| const allDocIds: string[] = [] | ||
|
|
||
| for (let i = 0; i < sessions.length; i += batchSize) { | ||
| const batch = sessions.slice(i, i + batchSize) | ||
|
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| const res = await fetch(`${this.baseUrl}/ingest`, { | ||
| method: "POST", | ||
| headers: { "Content-Type": "application/json" }, | ||
| body: JSON.stringify({ | ||
| containerTag: options.containerTag, | ||
| sessions: batch, | ||
| }), | ||
| }) | ||
|
|
||
| if (!res.ok) { | ||
| const text = await res.text() | ||
| throw new Error(`Ingest failed: ${text}`) | ||
| } | ||
|
|
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| const data = await res.json() as { documentIds: string[], count: number } | ||
| allDocIds.push(...data.documentIds) | ||
|
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| if (i % 20 === 0 && i > 0) { | ||
| logger.info(`Ingested ${i}/${sessions.length} sessions (${allDocIds.length} memories)`) | ||
| } | ||
| } | ||
|
|
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| logger.info(`Ingested ${sessions.length} sessions → ${allDocIds.length} memories`) | ||
| return { documentIds: allDocIds } | ||
| } | ||
|
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||
| async awaitIndexing( | ||
| result: IngestResult, | ||
| _containerTag: string, | ||
| onProgress?: IndexingProgressCallback | ||
| ): Promise<void> { | ||
| // agent-memory indexes synchronously on ingest, no waiting needed | ||
| const total = result.documentIds.length | ||
| onProgress?.({ | ||
| completedIds: result.documentIds, | ||
| failedIds: [], | ||
| total, | ||
| }) | ||
| } | ||
|
|
||
| async search(query: string, options: SearchOptions): Promise<unknown[]> { | ||
| const res = await fetch(`${this.baseUrl}/search`, { | ||
| method: "POST", | ||
| headers: { "Content-Type": "application/json" }, | ||
| body: JSON.stringify({ | ||
| containerTag: options.containerTag, | ||
| query, | ||
| limit: options.limit || 30, | ||
| }), | ||
| }) | ||
|
|
||
| if (!res.ok) { | ||
| const text = await res.text() | ||
| throw new Error(`Search failed: ${text}`) | ||
| } | ||
|
|
||
| const data = await res.json() as { results: unknown[] } | ||
| return data.results ?? [] | ||
| } | ||
|
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||
| async clear(containerTag: string): Promise<void> { | ||
| const res = await fetch(`${this.baseUrl}/clear`, { | ||
| method: "POST", | ||
| headers: { "Content-Type": "application/json" }, | ||
| body: JSON.stringify({ containerTag }), | ||
| }) | ||
|
|
||
| if (!res.ok) { | ||
| logger.warn(`Clear failed for ${containerTag}`) | ||
| } else { | ||
| logger.info(`Cleared memories for: ${containerTag}`) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| export default AgentMemoryProvider |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| import type { ProviderPrompts } from "../../types/prompts" | ||
|
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| export const AGENT_MEMORY_PROMPTS: ProviderPrompts = { | ||
| answerPrompt: (question: string, context: unknown[], questionDate?: string) => { | ||
| const memories = (context as Array<{ memory?: string; score?: number }>) | ||
| .map((r, i) => { | ||
| const memory = r.memory || JSON.stringify(r) | ||
| const score = r.score ? ` (relevance: ${r.score.toFixed(2)})` : "" | ||
| return `${i + 1}. ${memory}${score}` | ||
| }) | ||
| .join("\n") | ||
|
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| return `You are answering questions based on memories from past conversations. | ||
|
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| ${questionDate ? `Current date context: ${questionDate}\n` : ""} | ||
| Retrieved memories: | ||
| ${memories || "(no relevant memories found)"} | ||
|
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| Question: ${question} | ||
|
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| Instructions: | ||
| - Answer ONLY based on the retrieved memories above | ||
| - If the memories don't contain enough information, say so | ||
| - Be specific and cite details from the memories | ||
| - For temporal questions, pay attention to dates and sequence of events | ||
| - If memories contradict each other, prefer the most recent one | ||
|
|
||
| Answer:` | ||
| }, | ||
| } | ||
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