feat(cli): select E2B for fleet sandbox spawn - #1628
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ChangesFleet sandbox provider selection
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🔵 Low · up to The PR adds explicit sandbox-provider selection and preserves provider identity through provisioning and cleanup. It is mergeable with owner awareness, but the changelog heading still does not follow the repository-required Unreleased format and should be corrected. Sequence Diagram(s)sequenceDiagram
participant FleetCLI
participant ensureCloudFleetSandbox
participant CloudSandboxAPI
participant deleteCloudFleetSandbox
FleetCLI->>ensureCloudFleetSandbox: request selected providerId
ensureCloudFleetSandbox->>CloudSandboxAPI: provision sandbox with providerId
CloudSandboxAPI-->>ensureCloudFleetSandbox: return sandbox identity and providerId
ensureCloudFleetSandbox-->>FleetCLI: return normalized sandbox
FleetCLI->>deleteCloudFleetSandbox: provide sandbox identity and providerId on cleanup
deleteCloudFleetSandbox->>CloudSandboxAPI: delete sandbox
Suggested reviewers: Poem
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2 issues found and verified against the latest diff
Prompt for AI agents (unresolved issues)
Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.
<file name="packages/cloud/src/fleet-sandbox.ts">
<violation number="1" location="packages/cloud/src/fleet-sandbox.ts:220">
P2: When the caller does not request a provider, an unrecognized providerId in the response still throws from readProviderId, turning a valid router-chosen sandbox into a provisioning failure that is wrapped as outcomeUnknown and auto-deleted by the CLI. This contradicts the documented default where omitting --sandbox-provider lets Cloud's router choose. Only enforce the unknown-provider failure when a provider was actually requested; otherwise treat an unrecognized value as `undefined`.</violation>
<violation number="2" location="packages/cloud/src/fleet-sandbox.ts:241">
P2: When Cloud reuses an E2B node, `normalizeEnsureResult` validates `providerId` but drops it from the returned `CloudFleetSandboxReused` value. Add the optional provider field to the reused result and preserve the parsed provider so callers can tell which provider satisfied the request.</violation>
</file>
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Inline comments:
In `@CHANGELOG.md`:
- Line 8: Update the root changelog heading from “Unreleased - Minor” to the
required Keep a Changelog heading “Unreleased”, preserving the existing entries
beneath it.
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CHANGELOG.mdtests/relayflows/cases/1628-e2b-provider-selection/case.jsontests/relayflows/cases/1628-e2b-provider-selection/run.mjs
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Actionable comments posted: 1
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In `@tests/relayflows/cases/1628-e2b-provider-selection/run.mjs`:
- Around line 142-143: Before the writeFile calls for probePath and
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Summary
agent-relay fleet spawn --sandbox-provider <daytona|e2b>.Why
Cloud can route fleet sandboxes to E2B, but users had no way to request or prove that provider from the CLI. A partial or malformed response could also lose provider identity during cleanup. This makes the provider choice explicit and keeps teardown pinned to the backend that created the sandbox.
Cross-repo Cloud lifecycle support is in AgentWorkforce/cloud#3233. Substrate follow-ups are AgentWorkforce/sandbox#44 and AgentWorkforce/sandbox-router#34.
Test plan
npm run build:corepasses.--sandbox-providerwithout--sandboxfail locally.RelayFlow Proof
feature1628-e2b-provider-selectionRollout boundary
This PR does not claim E2B is live in production. After Cloud #3233 merges and deploys to dev, the live gate must prove exact
e2battribution, a mounted Relayfile workspace, an online node, a confirmed agent, a round-trip file, exact release/delete, and a gone check.