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Evaluates Honcho AI-native memory from plastic-labs fork against local SQLite. Pluggable architecture with zero overhead when disabled. Backends: Null — zero overhead (default disabled) Local — SQLite at ~/.hermes/memory.db (sovereign, recommended) Honcho — opt-in cloud via HONCHO_API_KEY Evaluation scoring (availability + functionality + latency + privacy): Local: ~95pts (A grade) — privacy 20/20 Honcho: ~60pts (B grade) — privacy 5/20 RECOMMENDATION: Local for sovereignty. Same functionality, better privacy. No cloud dependency. agent/memory.py: Backend ABC, Null/Local/Honcho, score(), evaluate() tools/memory_backend_tool.py: store/get/query/list/delete/info/evaluate tests/agent/test_memory.py: 31 tests, all passing New issue filed: #550 (close duplicate PRs for #322) Closes #322
80 lines
2.8 KiB
Python
80 lines
2.8 KiB
Python
"""Memory backend tool — cross-session user modeling.
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Local SQLite default, Honcho cloud opt-in. Zero overhead when disabled.
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"""
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import json
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from tools.registry import registry
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def memory_backend(action, uid="default", key=None, value=None, query=None, meta=None):
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from agent.memory import get_backend, evaluate
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b = get_backend()
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if action == "info":
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return json.dumps({"success": True, "backend": b.name, "cloud": b.cloud, "available": b.ok()})
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if action == "store":
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if not key or value is None:
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return json.dumps({"success": False, "error": "key and value required"})
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return json.dumps({"success": b.put(uid, key, value, meta), "key": key})
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if action == "get":
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if not key:
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return json.dumps({"success": False, "error": "key required"})
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e = b.get(uid, key)
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if not e:
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return json.dumps({"success": False, "error": f"not found: {key}"})
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return json.dumps({"success": True, "key": e.key, "value": e.value, "type": e.etype})
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if action == "query":
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if not query:
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return json.dumps({"success": False, "error": "query required"})
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r = b.find(uid, query)
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return json.dumps({"success": True,
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"results": [{"key": e.key, "value": e.value} for e in r], "count": len(r)})
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if action == "list":
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r = b.all(uid)
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return json.dumps({"success": True,
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"entries": [{"key": e.key, "type": e.etype} for e in r], "count": len(r)})
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if action == "delete":
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if not key:
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return json.dumps({"success": False, "error": "key required"})
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return json.dumps({"success": b.rm(uid, key)})
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if action == "evaluate":
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return json.dumps({"success": True, **evaluate()})
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return json.dumps({"success": False, "error": f"unknown action: {action}"})
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registry.register(
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name="memory_backend",
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toolset="skills",
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schema={
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"name": "memory_backend",
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"description": (
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"Cross-session memory backends for user preference persistence. "
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"Local SQLite default (sovereign), Honcho cloud opt-in via HONCHO_API_KEY. "
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"Zero overhead when disabled."
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),
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"parameters": {
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"type": "object",
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"properties": {
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"action": {"type": "string",
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"enum": ["store", "get", "query", "list", "delete", "info", "evaluate"]},
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"uid": {"type": "string"},
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"key": {"type": "string"},
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"value": {"type": "string"},
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"query": {"type": "string"},
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"meta": {"type": "object"},
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},
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"required": ["action"],
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},
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},
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handler=lambda a, **kw: memory_backend(**{k: v for k, v in a.items() if v is not None}),
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emoji="🧠",
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)
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