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twenty/packages/twenty-server/package.json
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Félix Malfait bb6da7b7d1 feat(code-interpreter): reuse a warm sandbox per conversation (E2B) (#21664) 
## What

The E2B code-interpreter driver created a **fresh sandbox on every
execution** and killed it in `finally`, so every call in a conversation
paid full cold-start and started blank. This PR keeps **one warm sandbox
per conversation** and, on idle, **pauses** it rather than killing it.

## How

- **Discovery without a registry:** the sandbox is tagged with the chat
`threadId` (scoped `workspaceId:threadId`) via E2B **metadata**, found
with `Sandbox.list({ query: { state: ['running','paused'], metadata }
})` and resumed with `Sandbox.connect()` (which auto-resumes a paused
sandbox). E2B is the source of truth — no Redis/DB mapping.
- **Pause/resume (E2B 2.x):** session sandboxes are created with
`lifecycle: { onTimeout: 'pause', autoResume: true }`. When idle they
**pause** — compute billing stops, filesystem **and** kernel/memory
state are preserved — and resume in ~1s on the next call. This replaces
the earlier keepalive approach.
- **No premature pause mid-run:** the sandbox is kept alive for
`max(execution timeout, idle window)`, so a long execution is never
paused underneath itself.
- **Tenant isolation:** discovery filters by the `twentySessionId` tag
and **re-checks it client-side**, so a loose server-side match can never
hand one conversation's warm sandbox (with its files, kernel state,
token) to another.
- **Concurrency:** executions sharing a session are serialized
in-process (one active stream per thread, run as a single job — the chat
resolver queues concurrent messages), so parallel tool calls can't race
the shared kernel.
- **Output isolation:** `/home/user/output` is reset at the start of
each reused run, so a call only returns the artifacts it actually
produced; durable state lives elsewhere and persists.

## SDK upgrade

`@e2b/code-interpreter` **`^1.0.4` → `^2.6.0`** (pulls `e2b@2.x`). The
typed pause/resume API, `lifecycle`, and the `state`/`metadata` list
filter only exist in the 2.x line; 1.x exposed them only as untyped
OpenAPI internals. `Sandbox.list()` is now a paginator (handled).

## Config

| Var | Default | Purpose |
|---|---|---|
| `CODE_INTERPRETER_TIMEOUT_MS` | `300000` | Max single-execution
duration. |
| `CODE_INTERPRETER_IDLE_TIMEOUT_MS` | `300000` | Idle window before the
warm sandbox auto-pauses. |

Reuse is always-on when a session id is present (chat path). The
workflow-agent path and the dev-only `LocalDriver` are unaffected.

## ⚠️ Open item before merge: paused-sandbox GC

E2B retains paused sandboxes **indefinitely** (no TTL). Unlike the old
keepalive path (which auto-killed on idle), pause means a conversation's
sandbox persists after the chat ends — so without garbage collection,
paused sandboxes accumulate (≈ one per historical conversation) and
consume storage. A GC policy is required; the approach + retention
window are being decided (see PR discussion). Also: the E2B runtime path
can't run in CI, so this still needs a **live smoke test** (reuse hit,
idle→pause, resume) and confirmation of paused-storage pricing before
rollout.

## Tests / checks

- Resolver unit tests (`getOrCreateSessionSandbox`): reuse+extend,
create-when-absent, duplicate reaping, connect-failure fallback,
keep-first-connectable-when-earlier-dead, **ignore cross-tenant
metadata**, and **kill-on-timeout-refresh-failure**.
- `nx typecheck twenty-server` (against e2b 2.x), `oxlint --type-aware`,
`oxfmt --check` all clean.

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-06-17 08:12:24 +00:00

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{
"name": "twenty-server",
"description": "",
"author": "",
"private": true,
"license": "AGPL-3.0",
"scripts": {
"nx": "NX_DEFAULT_PROJECT=twenty-server node ../../node_modules/nx/bin/nx.js",
"start:prod": "node dist/main",
"command:prod": "node dist/command/command",
"worker:prod": "node dist/queue-worker/queue-worker",
"database:init:prod": "node dist/database/scripts/setup-db.js && yarn database:migrate:prod --force --include-slow",
"database:migrate:prod": "node dist/command/command run-instance-commands",
"clickhouse:migrate:prod": "node dist/database/clickHouse/migrations/run-migrations.js",
"typeorm": "../../node_modules/typeorm/.bin/typeorm"
},
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},
"engines": {
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}
}
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