fix: expose deliveryContext in sessions_list

Co-authored-by: Adam Holt <mail@adamholt.co.nz>

CHANGELOG.md

@@ -40,6 +40,7 @@
 ### Fixes
 - Sub-agents: normalize announce delivery origin + queue bucketing by accountId to keep multi-account routing stable. (#1061, #1058) — thanks @adam91holt.
 - Sessions: include deliveryContext in sessions.list and reuse normalized delivery routing for announce/restart fallbacks. (#1058)
+- Sessions: propagate deliveryContext into last-route updates to keep account/channel routing stable. (#1058)
 - Gateway: honor explicit delivery targets without implicit accountId fallback; preserve lastAccountId for implicit routing.
 - Gateway: avoid reusing last-to/accountId when the requested channel differs; sync deliveryContext with last route fields.
 - Repo: fix oxlint config filename and move ignore pattern into config. (#1064) — thanks @connorshea.

docs/concepts/session-tool.md

@@ -48,6 +48,7 @@ Row shape (JSON):
 - `thinkingLevel`, `verboseLevel`, `systemSent`, `abortedLastRun`
 - `sendPolicy` (session override if set)
 - `lastChannel`, `lastTo`
+- `deliveryContext` (normalized `{ channel, to, accountId }` when available)
 - `transcriptPath` (best-effort path derived from store dir + sessionId)
 - `messages?` (only when `messageLimit > 0`)
 

src/agents/tools/sessions-list-tool.ts

@@ -27,6 +27,7 @@ type SessionListRow = {
   channel: string;
   label?: string;
   displayName?: string;
+  deliveryContext?: { channel?: string; to?: string; accountId?: string };
   updatedAt?: number | null;
   sessionId?: string;
   model?: string;
@@ -201,6 +202,14 @@ export function createSessionsListTool(opts?: {
           channel: derivedChannel,
           label: typeof entry.label === "string" ? entry.label : undefined,
           displayName: typeof entry.displayName === "string" ? entry.displayName : undefined,
+          deliveryContext:
+            deliveryChannel || deliveryTo || deliveryAccountId
+              ? {
+                  channel: deliveryChannel,
+                  to: deliveryTo,
+                  accountId: deliveryAccountId,
+                }
+              : undefined,
           updatedAt: typeof entry.updatedAt === "number" ? entry.updatedAt : undefined,
           sessionId,
           model: typeof entry.model === "string" ? entry.model : undefined,