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fix(eve): scope forget, persist capture idempotency, and fail closed

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Review findings: delete was not partitioned by scope.key, capture
replay after restart could double-write, and Mem0 errors were swallowed
as empty recall.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Himanshu-Sangshetti
2026-09-09 10:48:26 +08:00
co-authored by Cursor
parent 1d83bb0835
commit 10d6717068
24 changed files with 1013 additions and 165 deletions
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docs/integrations/eve.mdx
+5 -9
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@@ -5,7 +5,7 @@ description: "Use Mem0 as a first-class memory provider for Vercel Eve agents."
[Eve](https://eve.dev/docs/memory) is Vercel's agent framework. A memory provider sits in the agent loop: Eve recalls context before each turn, captures completed turns, and exposes provider tools. `@mem0/eve` is Mem0's implementation of that contract.
This is not the Mem0 MCP connection. MCP gives the model tools it may or may not call. The memory provider runs automatically.
This is not the Mem0 MCP connection. MCP gives the model tools it may or may not call. The memory provider runs automatically. The live MCP install is `eve add connection/mem0`.
## Install
@@ -31,19 +31,15 @@ export default defineMemory({
});
```
After Eve lists Mem0 in the official registry, the same slot is created by:
```bash
eve add memory/mem0
```
`eve add memory/mem0` is not in Eve's catalog yet. After Mem0 is listed in the official registry, that command will create the same slot file.
## How it works
1. **Recall.** Before each turn, Mem0 searches memories for the locked Eve scope and returns them as attributed user-role messages.
2. **Capture.** After a successful turn, Mem0 adds the user and assistant messages and extracts durable facts.
1. **Recall.** Before each turn and after compaction, Mem0 searches memories for the locked Eve scope and returns `{ id, content }` messages. Eve injects those as user-role messages attributed to the slot.
2. **Capture.** After a successful turn, Mem0 adds the user messages from that turn and, when present, the latest assistant reply. By default (`infer: true`) Mem0 extracts durable facts.
3. **Tools.** The model can call `search`, `remember`, and `forget`. Eve qualifies them as `mem0__search`, `mem0__remember`, and `mem0__forget` when the slot file is `mem0.ts`.
Eve owns namespace, scope, and when recall/capture run. Mem0 owns storage, ranking, and extraction. Every read and write is partitioned by `memory.scope.key`.
Eve owns namespace, scope, and when recall/capture run. Mem0 owns storage, ranking, and extraction. Search, capture, remember, and forget are partitioned by `memory.scope.key`. Forget deletes by id only after confirming the memory belongs to that key.
## Options