Managed agent worktrees could exist without an active-session file, AGENT.lock telemetry, or GX file locks after a CLI stopped during quota or approval exhaustion. Hivemind now emits those bare worktrees as stranded managed-worktree lanes so MCP context marks them needs_attention and another agent can adopt the branch instead of missing it.

Constraint: Some quota-stop paths fail before codex-guard can enqueue takeover metadata.

Rejected: Rely only on stale active-session files | fully stopped sessions can leave only a managed worktree behind.

Confidence: high

Scope-risk: narrow

Directive: Keep active sessions, AGENT.lock telemetry, and GX file locks higher precedence than the stranded fallback.

Tested: pnpm --filter @colony/core test -- hivemind.test.ts

Tested: pnpm --filter @colony/mcp-server test -- server.test.ts

Tested: pnpm --filter @colony/core typecheck

Not-tested: pnpm --filter @colony/mcp-server typecheck has existing @colony/spec strict/type declaration failures.

Co-authored-by: OmX <omx@oh-my-codex.dev>