message: do not add acl rule without agent type
diff: @@ -231,6 +231,8 @@ export function makeACLGraphbyCombo (
  ): void {
  const ACL = ns.acl
  for (const combo in byCombo) {
  + const pairs = byCombo[combo]
  + if (!pairs.length) continue // do not add to store when no agent
  const modeURIs = combo.split('\n')
  let short = modeURIs
  .map(function (u) {
  @@ -249,7 +251,6 @@ export function makeACLGraphbyCombo (
  for (let i = 0; i < modeURIs.length; i++) {
  kb.add(a, ACL('mode'), kb.sym(modeURIs[i]), aclDoc)
  }
  - const pairs = byCombo[combo]
  for (let i = 0; i < pairs.length; i++) {
  const pred = pairs[i][0]
  const ag = pairs[i][1]
  