diff --git a/src/servers/sidecar/claude/user-instance.ts b/src/servers/sidecar/claude/user-instance.ts
index a78d16e7..8fe97967 100644
--- a/src/servers/sidecar/claude/user-instance.ts
+++ b/src/servers/sidecar/claude/user-instance.ts
@@ -161,6 +161,13 @@ function generateMcpConfig(): string {
         env: {
           PI_TOOLS_DIRS: hostToolsDirs,
           OFFICER_EMAIL_DB: join(userRoot, emailDbRel),
+          // The PARENT, because `OFFICER_EMAIL_DB` is one account and an owner may have several.
+          //
+          // `findEmailAccountName` picks the most recently synced, which is the right guess for a single
+          // question and a silent lie for "search all my email" — the agent gets one mailbox and no way to
+          // learn the others exist. Handing it the directory makes the rest discoverable by listing it,
+          // rather than by deriving a path from a convention it would have to be told anyway.
+          OFFICER_EMAIL_ACCOUNTS_DIR: join(userRoot, 'email_accounts'),
           MCP_TOOLS_LOG: join(userRoot, 'logs', 'mcp-tools.log'),
           OFFICER_API_URL,
           OFFICER_AUTH_TOKEN,