[witbrock]

Outcome

Shared turns retain accepted participants, exact speaker identities, and the source actor/org scope of historical observations. Task creation is treated as a valid outcome, separate from executing the work recorded in a task.

Smallest adequate changes

• Project server-derived participant/current-scope metadata and historical author/tool provenance into provider-visible text. Preserve canonical history and existing access filters; do not turn conversation participation into task or identity authority.
• Return an explicit verified task-record receipt alongside the unchanged legacy canonical read-back row. Pending lifecycle status no longer makes a successful create appear unverified; no task execution is asserted.
• Check exact fresh read-back identity and reject incomplete retry records without creating duplicates.
• Describe existing self-assignment and record-only task semantics accurately. No new intent classifier, workflow layer, automatic assignment, or global model routing change.

Validation and release decision

Merge decision changes — ready, subject to required CI. 122 affected-path tests and 25 focused adaptive-turn tests pass. New-file Ruff, affected-file fatal Ruff and diff checks pass. Coverage includes accepted/pending/revoked/foreign participants, no profile lookup for nonparticipants, preserved source history, actual provider text projection, window scope, private-task denials, verified pending records, partial/wrong-ID read-backs, and retry reconciliation.

Three bounded synthetic gpt-5.6-luna checks proposed a fresh exact task read after a scope change, proposed only task creation for an explicit task-only request, and resolved participant IDs correctly. Tool proposals were not dispatched. These are bounded observations, not a guarantee for arbitrary prompts.

No real user tasks, messages, authority grants, or deployments changed. Stop-ship conditions are leaked private metadata, lost source text, changed authority, or falsely verified task creation.

Tracking: https://naoinstitute.atlassian.net/browse/JVNAUTOSCI-2739