Supported native same-session handoff preserving effective controls and foreground completion identity

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

Supported native same-session handoff preserving effective controls and foreground completion identity

Proposed Solution

1. Identify the accountable native-host/SDK team and supported extension contract for an admitted same-ID graceful handoff.

1. Provide atomic effective-control capture/restore with protected secret references and unchanged permission/organization/person-only/pause/kill/hold enforcement.

1. Provide single-successor lifecycle/recovery fencing and actual effect-scope validation, not only a permission preview or terminal-spawn recipe.

1. Provide a supported model-native foreground Agent completion producer with current-request causal IDs and documented compatibility/testing path.

Alternative Solutions

_No response_

Priority

Medium - Would be very helpful

Feature Category

Developer tools/SDK

Use Case Example

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Additional Context

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