feat: inline member management on Marmot group info screen

- Fold the Remove Member screen into the info screen: each member row
  now has an inline remove icon that opens a confirmation dialog.
- Fold the Add Member screen into the info screen: a search field with
  a user-suggestion list lives directly above the member list, so
  adding a member never requires leaving the screen.
- Move Leave Group out of the scrolling body into a top-bar action so
  it is reachable regardless of member count.
- Shrink the relay strip (35dp tiles with a small activity dot) and
  tuck it next to the group header; drop the "Relays" label and the
  MLS epoch readout, which were visual clutter.
- Route the chat screen's Add Member button to the info screen and
  delete the two standalone screens and their routes.
- Add headless interop test 17: A creates a group, adds B, removes B,
  re-adds B, and verifies B can both receive and send messages. Guards
  the reported regression where a re-added member came back without a
  usable leaf and silently lost the ability to post.

https://claude.ai/code/session_01JaeqZwVNLKvUUvXWRzPmRP

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/navigation/AppNavigation.kt

@@ -75,13 +75,11 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.bookmarkgroups.list.metadat
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.bookmarkgroups.membershipManagement.ArticleBookmarkListManagementScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.bookmarkgroups.membershipManagement.PostBookmarkListManagementScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.bookmarkgroups.old.OldBookmarkListScreen
-import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup.AddMemberScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup.CreateGroupScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup.EditGroupInfoScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup.MarmotGroupChatScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup.MarmotGroupInfoScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup.MarmotGroupListScreen
-import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup.RemoveMemberScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.privateDM.ChatroomByAuthorScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.privateDM.ChatroomScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.privateDM.send.NewGroupDMScreen
@@ -345,8 +343,6 @@ fun BuildNavigation(
         composableFromEndArgs<Route.MarmotGroupInfo> { MarmotGroupInfoScreen(it.nostrGroupId, accountViewModel, nav) }
 
         composableFromBottom<Route.CreateMarmotGroup> { CreateGroupScreen(accountViewModel, nav) }
-        composableFromBottomArgs<Route.MarmotGroupAddMember> { AddMemberScreen(it.nostrGroupId, accountViewModel, nav) }
-        composableFromBottomArgs<Route.MarmotGroupRemoveMember> { RemoveMemberScreen(it.nostrGroupId, accountViewModel, nav) }
         composableFromBottomArgs<Route.MarmotGroupEditInfo> { EditGroupInfoScreen(it.nostrGroupId, accountViewModel, nav) }
 
         composableFromEndArgs<Route.PublicChatChannel> {

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/navigation/routes/Routes.kt

@@ -370,14 +370,6 @@ sealed class Route {
 
     @Serializable object CreateMarmotGroup : Route()
 
-    @Serializable data class MarmotGroupAddMember(
-        val nostrGroupId: String,
-    ) : Route()
-
-    @Serializable data class MarmotGroupRemoveMember(
-        val nostrGroupId: String,
-    ) : Route()
-
     @Serializable data class MarmotGroupEditInfo(
         val nostrGroupId: String,
     ) : Route()

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/AddMemberScreen.kt

@@ -1,306 +0,0 @@
-/*
- * Copyright (c) 2025 Vitor Pamplona
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of
- * this software and associated documentation files (the "Software"), to deal in
- * the Software without restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
- * Software, and to permit persons to whom the Software is furnished to do so,
- * subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
- * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-package com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup
-
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.consumeWindowInsets
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.imePadding
-import androidx.compose.foundation.layout.padding
-import androidx.compose.material3.HorizontalDivider
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.OutlinedTextField
-import androidx.compose.material3.Scaffold
-import androidx.compose.material3.Text
-import androidx.compose.material3.TextButton
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateListOf
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberCoroutineScope
-import androidx.compose.runtime.setValue
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.text.style.TextOverflow
-import androidx.compose.ui.unit.dp
-import androidx.lifecycle.compose.collectAsStateWithLifecycle
-import com.vitorpamplona.amethyst.commons.model.nip05DnsIdentifiers.Nip05State
-import com.vitorpamplona.amethyst.model.User
-import com.vitorpamplona.amethyst.ui.navigation.navs.INav
-import com.vitorpamplona.amethyst.ui.navigation.topbars.ActionTopBar
-import com.vitorpamplona.amethyst.ui.note.UserPicture
-import com.vitorpamplona.amethyst.ui.note.creators.userSuggestions.ShowUserSuggestionList
-import com.vitorpamplona.amethyst.ui.note.creators.userSuggestions.UserSuggestionState
-import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
-import com.vitorpamplona.amethyst.ui.theme.SuggestionListDefaultHeightPage
-import com.vitorpamplona.quartz.nip01Core.core.HexKey
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
-
-@Composable
-fun AddMemberScreen(
-    nostrGroupId: HexKey,
-    accountViewModel: AccountViewModel,
-    nav: INav,
-) {
-    var searchInput by remember { mutableStateOf("") }
-    val selectedUsers = remember { mutableStateListOf<User>() }
-    var statusMessage by remember { mutableStateOf<String?>(null) }
-    var isError by remember { mutableStateOf(false) }
-    var isAdding by remember { mutableStateOf(false) }
-    val scope = rememberCoroutineScope()
-
-    val userSuggestions =
-        remember {
-            UserSuggestionState(accountViewModel.account, accountViewModel.nip05ClientBuilder())
-        }
-
-    DisposableEffect(Unit) {
-        onDispose { userSuggestions.reset() }
-    }
-
-    Scaffold(
-        topBar = {
-            ActionTopBar(
-                postRes = com.vitorpamplona.amethyst.R.string.add,
-                onCancel = { nav.popBack() },
-                onPost = {
-                    if (selectedUsers.isEmpty()) {
-                        statusMessage = "No users selected"
-                        isError = true
-                        return@ActionTopBar
-                    }
-                    isAdding = true
-                    isError = false
-                    val usersToAdd = selectedUsers.toList()
-                    scope.launch(Dispatchers.IO) {
-                        var successCount = 0
-                        val failures = mutableListOf<Pair<User, String>>()
-                        for ((index, user) in usersToAdd.withIndex()) {
-                            statusMessage =
-                                "Adding ${user.toBestDisplayName()} (${index + 1}/${usersToAdd.size})..."
-                            isError = false
-                            try {
-                                val result =
-                                    accountViewModel.addMarmotGroupMember(
-                                        nostrGroupId,
-                                        user.pubkeyHex,
-                                    )
-                                if (result.startsWith("Success")) {
-                                    successCount++
-                                } else {
-                                    failures.add(user to result.removePrefix("Error: "))
-                                }
-                            } catch (e: Exception) {
-                                failures.add(user to (e.message ?: "unknown error"))
-                            }
-                        }
-
-                        if (failures.isEmpty()) {
-                            nav.popBack()
-                        } else {
-                            statusMessage =
-                                buildString {
-                                    if (successCount > 0) {
-                                        append("Added $successCount. ")
-                                    }
-                                    append("Failed: ")
-                                    append(
-                                        failures.joinToString("; ") { (user, reason) ->
-                                            "${user.toBestDisplayName()} ($reason)"
-                                        },
-                                    )
-                                }
-                            isError = true
-                            // Keep failed users in the list for retry, drop successful ones
-                            val failedUsers = failures.map { it.first }.toSet()
-                            selectedUsers.clear()
-                            selectedUsers.addAll(failedUsers)
-                            isAdding = false
-                        }
-                    }
-                },
-                isActive = { !isAdding && selectedUsers.isNotEmpty() },
-            )
-        },
-    ) { padding ->
-        Column(
-            modifier =
-                Modifier
-                    .padding(padding)
-                    .consumeWindowInsets(padding)
-                    .imePadding(),
-        ) {
-            // Selected users list
-            if (selectedUsers.isNotEmpty()) {
-                selectedUsers.toList().forEachIndexed { index, user ->
-                    SelectedUserRow(
-                        user = user,
-                        accountViewModel = accountViewModel,
-                        nav = nav,
-                        enabled = !isAdding,
-                        onClear = {
-                            selectedUsers.remove(user)
-                            statusMessage = null
-                            isError = false
-                        },
-                    )
-                    if (index < selectedUsers.lastIndex) {
-                        HorizontalDivider()
-                    }
-                }
-                HorizontalDivider()
-            }
-
-            // Search field
-            OutlinedTextField(
-                value = searchInput,
-                onValueChange = { newValue ->
-                    searchInput = newValue
-                    if (!isError) statusMessage = null
-                    if (newValue.length > 2) {
-                        userSuggestions.processCurrentWord(newValue)
-                    } else {
-                        userSuggestions.reset()
-                    }
-                },
-                label = { Text("Search users") },
-                placeholder = { Text("Name, npub, or NIP-05") },
-                modifier =
-                    Modifier
-                        .fillMaxWidth()
-                        .padding(horizontal = 16.dp),
-                singleLine = true,
-                enabled = !isAdding,
-            )
-
-            if (statusMessage != null) {
-                Text(
-                    text = statusMessage!!,
-                    modifier = Modifier.padding(horizontal = 16.dp, vertical = 8.dp),
-                    style = MaterialTheme.typography.bodySmall,
-                    color =
-                        if (isError) {
-                            MaterialTheme.colorScheme.error
-                        } else {
-                            MaterialTheme.colorScheme.primary
-                        },
-                )
-            }
-
-            Spacer(modifier = Modifier.height(4.dp))
-
-            // User suggestion list
-            if (!isAdding && searchInput.length > 2) {
-                ShowUserSuggestionList(
-                    userSuggestions = userSuggestions,
-                    onSelect = { user ->
-                        if (selectedUsers.none { it.pubkeyHex == user.pubkeyHex }) {
-                            selectedUsers.add(user)
-                        }
-                        searchInput = ""
-                        userSuggestions.reset()
-                    },
-                    accountViewModel = accountViewModel,
-                    modifier = SuggestionListDefaultHeightPage,
-                    onEmpty = {
-                        Text(
-                            "They must have published a KeyPackage (kind:30443) to be added.",
-                            modifier = Modifier.padding(horizontal = 16.dp, vertical = 8.dp),
-                            style = MaterialTheme.typography.bodySmall,
-                            color = MaterialTheme.colorScheme.onSurfaceVariant,
-                        )
-                    },
-                )
-            }
-        }
-    }
-}
-
-@Composable
-private fun SelectedUserRow(
-    user: User,
-    accountViewModel: AccountViewModel,
-    nav: INav,
-    enabled: Boolean,
-    onClear: () -> Unit,
-) {
-    Row(
-        modifier =
-            Modifier
-                .fillMaxWidth()
-                .padding(horizontal = 16.dp, vertical = 8.dp),
-        verticalAlignment = Alignment.CenterVertically,
-    ) {
-        UserPicture(
-            userHex = user.pubkeyHex,
-            size = 40.dp,
-            accountViewModel = accountViewModel,
-            nav = nav,
-        )
-        Column(
-            modifier = Modifier.weight(1f).padding(start = 12.dp),
-        ) {
-            Text(
-                text = user.toBestDisplayName(),
-                style = MaterialTheme.typography.bodyLarge,
-                fontWeight = FontWeight.Bold,
-                maxLines = 1,
-                overflow = TextOverflow.Ellipsis,
-            )
-            UserSecondaryLine(user)
-        }
-        TextButton(onClick = onClear, enabled = enabled) {
-            Text("Remove")
-        }
-    }
-}
-
-@Composable
-private fun UserSecondaryLine(user: User) {
-    val nip05StateMetadata by user.nip05State().flow.collectAsStateWithLifecycle()
-
-    val text =
-        when (val state = nip05StateMetadata) {
-            is Nip05State.Exists -> {
-                val name = state.nip05.name
-                if (name == "_") state.nip05.domain else "$name@${state.nip05.domain}"
-            }
-
-            else -> {
-                user.pubkeyDisplayHex()
-            }
-        }
-
-    Text(
-        text = text,
-        style = MaterialTheme.typography.bodySmall,
-        color = MaterialTheme.colorScheme.onSurfaceVariant,
-        maxLines = 1,
-        overflow = TextOverflow.Ellipsis,
-    )
-}

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupChatScreen.kt

@@ -86,7 +86,7 @@ fun MarmotGroupChatScreen(
                     }
                 },
                 actions = {
-                    IconButton(onClick = { nav.nav(Route.MarmotGroupAddMember(nostrGroupId)) }) {
+                    IconButton(onClick = { nav.nav(Route.MarmotGroupInfo(nostrGroupId)) }) {
                         Icon(
                             imageVector = Icons.Default.GroupAdd,
                             contentDescription = "Add Member",

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/MarmotGroupInfoScreen.kt

@@ -32,8 +32,10 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.ExperimentalLayoutApi
 import androidx.compose.foundation.layout.FlowRow
 import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.lazy.LazyColumn
@@ -43,7 +45,6 @@ import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material.icons.automirrored.filled.ExitToApp
 import androidx.compose.material.icons.filled.Edit
-import androidx.compose.material.icons.filled.GroupAdd
 import androidx.compose.material.icons.filled.PersonRemove
 import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.ExperimentalMaterial3Api
@@ -51,11 +52,13 @@ import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
 import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
@@ -77,9 +80,12 @@ import com.vitorpamplona.amethyst.ui.navigation.navs.INav
 import com.vitorpamplona.amethyst.ui.navigation.routes.Route
 import com.vitorpamplona.amethyst.ui.note.RenderRelayIcon
 import com.vitorpamplona.amethyst.ui.note.UserPicture
+import com.vitorpamplona.amethyst.ui.note.creators.userSuggestions.ShowUserSuggestionList
+import com.vitorpamplona.amethyst.ui.note.creators.userSuggestions.UserSuggestionState
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.rooms.LoadUser
-import com.vitorpamplona.amethyst.ui.theme.LargeRelayIconModifier
+import com.vitorpamplona.amethyst.ui.theme.MediumRelayIconModifier
+import com.vitorpamplona.amethyst.ui.theme.SuggestionListDefaultHeightChat
 import com.vitorpamplona.amethyst.ui.theme.allGoodColor
 import com.vitorpamplona.amethyst.ui.theme.placeholderText
 import com.vitorpamplona.amethyst.ui.theme.ripple24dp
@@ -108,10 +114,24 @@ fun MarmotGroupInfoScreen(
     val members by chatroom.members.collectAsStateWithLifecycle()
     var showLeaveDialog by remember { mutableStateOf(false) }
     var isLeaving by remember { mutableStateOf(false) }
+    var memberToRemove by remember { mutableStateOf<GroupMemberInfo?>(null) }
+    var addSearchInput by remember { mutableStateOf("") }
+    var addStatus by remember { mutableStateOf<String?>(null) }
+    var isAddError by remember { mutableStateOf(false) }
+    var isAdding by remember { mutableStateOf(false) }
     val scope = rememberCoroutineScope()
     val myPubkey = accountViewModel.account.signer.pubKey
     val context = LocalContext.current
 
+    val userSuggestions =
+        remember {
+            UserSuggestionState(accountViewModel.account, accountViewModel.nip05ClientBuilder())
+        }
+
+    DisposableEffect(Unit) {
+        onDispose { userSuggestions.reset() }
+    }
+
     Scaffold(
         topBar = {
             TopAppBar(
@@ -131,10 +151,14 @@ fun MarmotGroupInfoScreen(
                             contentDescription = "Edit Group Info",
                         )
                     }
-                    IconButton(onClick = { nav.nav(Route.MarmotGroupAddMember(nostrGroupId)) }) {
+                    IconButton(
+                        onClick = { showLeaveDialog = true },
+                        enabled = !isLeaving,
+                    ) {
                         Icon(
-                            imageVector = Icons.Default.GroupAdd,
+                            imageVector = Icons.AutoMirrored.Filled.ExitToApp,
-                            contentDescription = "Add Member",
+                            contentDescription = "Leave Group",
+                            tint = MaterialTheme.colorScheme.error,
                         )
                     }
                 },
@@ -155,46 +179,90 @@ fun MarmotGroupInfoScreen(
                             .fillMaxWidth()
                             .padding(16.dp),
                 ) {
-                    Text(
+                    Row(verticalAlignment = Alignment.CenterVertically) {
-                        text = displayName ?: "Group ${nostrGroupId.take(8)}...",
+                        Column(modifier = Modifier.weight(1f)) {
-                        style = MaterialTheme.typography.headlineSmall,
+                            Text(
-                        fontWeight = FontWeight.Bold,
+                                text = displayName ?: "Group ${nostrGroupId.take(8)}...",
-                    )
+                                style = MaterialTheme.typography.headlineSmall,
-                    if (!groupDescription.isNullOrEmpty()) {
+                                fontWeight = FontWeight.Bold,
-                        Text(
+                            )
-                            text = groupDescription!!,
+                            if (!groupDescription.isNullOrEmpty()) {
-                            style = MaterialTheme.typography.bodyMedium,
+                                Text(
-                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                                    text = groupDescription!!,
-                            modifier = Modifier.padding(top = 4.dp),
+                                    style = MaterialTheme.typography.bodyMedium,
-                        )
+                                    color = MaterialTheme.colorScheme.onSurfaceVariant,
-                    }
+                                    modifier = Modifier.padding(top = 4.dp),
-                    Text(
+                                )
-                        text = "${members.size} members",
+                            }
-                        style = MaterialTheme.typography.bodyMedium,
+                            Text(
-                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                                text = "${members.size} members",
-                        modifier = Modifier.padding(top = 4.dp),
+                                style = MaterialTheme.typography.bodyMedium,
-                    )
+                                color = MaterialTheme.colorScheme.onSurfaceVariant,
-                    if (groupRelays.isNotEmpty()) {
+                                modifier = Modifier.padding(top = 4.dp),
-                        GroupRelayList(
+                            )
-                            relayUrls = groupRelays,
+                        }
-                            relayActivity = relayActivity,
+                        if (groupRelays.isNotEmpty()) {
-                            accountViewModel = accountViewModel,
+                            GroupRelayStrip(
-                            nav = nav,
+                                relayUrls = groupRelays,
-                        )
+                                relayActivity = relayActivity,
-                    }
+                                accountViewModel = accountViewModel,
-                    val epoch = accountViewModel.account.marmotManager?.groupEpoch(nostrGroupId)
+                                nav = nav,
-                    if (epoch != null) {
+                            )
-                        Text(
+                        }
-                            text = "Epoch: $epoch",
-                            style = MaterialTheme.typography.bodySmall,
-                            color = MaterialTheme.colorScheme.onSurfaceVariant,
-                            modifier = Modifier.padding(top = 2.dp),
-                        )
                     }
                 }
                 HorizontalDivider()
             }
 
+            // Inline add-member search
+            item {
+                AddMemberInline(
+                    nostrGroupId = nostrGroupId,
+                    searchInput = addSearchInput,
+                    onSearchInputChange = { value ->
+                        addSearchInput = value
+                        if (!isAddError) addStatus = null
+                        if (value.length > 2) {
+                            userSuggestions.processCurrentWord(value)
+                        } else {
+                            userSuggestions.reset()
+                        }
+                    },
+                    userSuggestions = userSuggestions,
+                    statusMessage = addStatus,
+                    isError = isAddError,
+                    isAdding = isAdding,
+                    accountViewModel = accountViewModel,
+                    onAdd = { user ->
+                        isAdding = true
+                        isAddError = false
+                        addStatus = "Adding ${user.toBestDisplayName()}..."
+                        val targetPubkey = user.pubkeyHex
+                        val targetName = user.toBestDisplayName()
+                        scope.launch(Dispatchers.IO) {
+                            try {
+                                val result = accountViewModel.addMarmotGroupMember(nostrGroupId, targetPubkey)
+                                if (result.startsWith("Success")) {
+                                    addStatus = null
+                                    isAddError = false
+                                    addSearchInput = ""
+                                    userSuggestions.reset()
+                                } else {
+                                    addStatus = "Failed to add $targetName: ${result.removePrefix("Error: ")}"
+                                    isAddError = true
+                                }
+                            } catch (e: Exception) {
+                                addStatus = "Failed to add $targetName: ${e.message ?: "unknown error"}"
+                                isAddError = true
+                            } finally {
+                                isAdding = false
+                            }
+                        }
+                    },
+                )
+                HorizontalDivider()
+            }
+
             // Members section header
             item {
                 Text(
@@ -205,61 +273,21 @@ fun MarmotGroupInfoScreen(
                 )
             }
 
-            // Member list
+            // Member list with inline remove button
             items(members, key = { it.leafIndex }) { member ->
+                val isMe = member.pubkey == myPubkey
+                val isAdmin = member.pubkey in adminPubkeys
                 MemberRow(
                     member = member,
-                    isMe = member.pubkey == myPubkey,
+                    isMe = isMe,
-                    isAdmin = member.pubkey in adminPubkeys,
+                    isAdmin = isAdmin,
+                    canRemove = !isMe,
                     accountViewModel = accountViewModel,
                     nav = nav,
+                    onRemoveClick = { memberToRemove = member },
                 )
                 HorizontalDivider()
             }
-
-            // Group actions section
-            item {
-                HorizontalDivider(modifier = Modifier.padding(top = 8.dp))
-                Row(
-                    modifier =
-                        Modifier
-                            .fillMaxWidth()
-                            .clickable { nav.nav(Route.MarmotGroupRemoveMember(nostrGroupId)) }
-                            .padding(horizontal = 16.dp, vertical = 16.dp),
-                    verticalAlignment = Alignment.CenterVertically,
-                    horizontalArrangement = Arrangement.spacedBy(12.dp),
-                ) {
-                    Icon(
-                        imageVector = Icons.Default.PersonRemove,
-                        contentDescription = "Remove Member",
-                    )
-                    Text(
-                        text = "Remove Member",
-                        style = MaterialTheme.typography.bodyLarge,
-                    )
-                }
-                HorizontalDivider()
-                Row(
-                    modifier =
-                        Modifier
-                            .fillMaxWidth()
-                            .clickable { showLeaveDialog = true }
-                            .padding(horizontal = 16.dp, vertical = 16.dp),
-                    verticalAlignment = Alignment.CenterVertically,
-                    horizontalArrangement = Arrangement.spacedBy(12.dp),
-                ) {
-                    Icon(
-                        imageVector = Icons.AutoMirrored.Filled.ExitToApp,
-                        contentDescription = "Leave Group",
-                        tint = MaterialTheme.colorScheme.error,
-                    )
-                    Text(
-                        text = "Leave Group",
-                        style = MaterialTheme.typography.bodyLarge,
-                        color = MaterialTheme.colorScheme.error,
-                    )
-                }
-            }
         }
     }
 
@@ -290,6 +318,96 @@ fun MarmotGroupInfoScreen(
             onDismiss = { showLeaveDialog = false },
         )
     }
+
+    memberToRemove?.let { member ->
+        ConfirmRemoveMemberDialog(
+            memberPubkey = member.pubkey,
+            accountViewModel = accountViewModel,
+            onConfirm = {
+                memberToRemove = null
+                scope.launch(Dispatchers.IO) {
+                    try {
+                        accountViewModel.removeMarmotGroupMember(nostrGroupId, member.leafIndex)
+                        launch(Dispatchers.Main) {
+                            Toast
+                                .makeText(context, "Member removed", Toast.LENGTH_SHORT)
+                                .show()
+                        }
+                    } catch (e: Exception) {
+                        launch(Dispatchers.Main) {
+                            Toast
+                                .makeText(
+                                    context,
+                                    "Failed to remove member: ${e.message}",
+                                    Toast.LENGTH_LONG,
+                                ).show()
+                        }
+                    }
+                }
+            },
+            onDismiss = { memberToRemove = null },
+        )
+    }
+}
+
+@Composable
+private fun AddMemberInline(
+    nostrGroupId: HexKey,
+    searchInput: String,
+    onSearchInputChange: (String) -> Unit,
+    userSuggestions: UserSuggestionState,
+    statusMessage: String?,
+    isError: Boolean,
+    isAdding: Boolean,
+    accountViewModel: AccountViewModel,
+    onAdd: (com.vitorpamplona.amethyst.model.User) -> Unit,
+) {
+    Column(modifier = Modifier.fillMaxWidth()) {
+        OutlinedTextField(
+            value = searchInput,
+            onValueChange = onSearchInputChange,
+            label = { Text("Add member") },
+            placeholder = { Text("Name, npub, or NIP-05") },
+            modifier =
+                Modifier
+                    .fillMaxWidth()
+                    .padding(horizontal = 16.dp, vertical = 8.dp),
+            singleLine = true,
+            enabled = !isAdding,
+        )
+
+        if (statusMessage != null) {
+            Text(
+                text = statusMessage,
+                modifier = Modifier.padding(horizontal = 16.dp, vertical = 4.dp),
+                style = MaterialTheme.typography.bodySmall,
+                color =
+                    if (isError) {
+                        MaterialTheme.colorScheme.error
+                    } else {
+                        MaterialTheme.colorScheme.primary
+                    },
+            )
+        }
+
+        if (!isAdding && searchInput.length > 2) {
+            Spacer(modifier = Modifier.height(4.dp))
+            ShowUserSuggestionList(
+                userSuggestions = userSuggestions,
+                onSelect = { user -> onAdd(user) },
+                accountViewModel = accountViewModel,
+                modifier = SuggestionListDefaultHeightChat,
+                onEmpty = {
+                    Text(
+                        "They must have published a KeyPackage (kind:30443) to be added.",
+                        modifier = Modifier.padding(horizontal = 16.dp, vertical = 8.dp),
+                        style = MaterialTheme.typography.bodySmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                },
+            )
+        }
+    }
 }
 
 @Composable
@@ -297,15 +415,17 @@ fun MemberRow(
     member: GroupMemberInfo,
     isMe: Boolean,
     isAdmin: Boolean,
+    canRemove: Boolean,
     accountViewModel: AccountViewModel,
     nav: INav,
+    onRemoveClick: () -> Unit,
 ) {
     Row(
         modifier =
             Modifier
                 .fillMaxWidth()
                 .clickable { nav.nav(Route.Profile(member.pubkey)) }
-                .padding(horizontal = 16.dp, vertical = 10.dp),
+                .padding(start = 16.dp, end = 8.dp, top = 10.dp, bottom = 10.dp),
         verticalAlignment = Alignment.CenterVertically,
         horizontalArrangement = Arrangement.spacedBy(12.dp),
     ) {
@@ -332,6 +452,15 @@ fun MemberRow(
                 )
             }
         }
+        if (canRemove) {
+            IconButton(onClick = onRemoveClick) {
+                Icon(
+                    imageVector = Icons.Default.PersonRemove,
+                    contentDescription = "Remove Member",
+                    tint = MaterialTheme.colorScheme.error,
+                )
+            }
+        }
     }
 }
 
@@ -360,12 +489,41 @@ fun LeaveGroupDialog(
     )
 }
 
+@Composable
+private fun ConfirmRemoveMemberDialog(
+    memberPubkey: HexKey,
+    accountViewModel: AccountViewModel,
+    onConfirm: () -> Unit,
+    onDismiss: () -> Unit,
+) {
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text("Remove Member") },
+        text = {
+            LoadUser(baseUserHex = memberPubkey, accountViewModel = accountViewModel) { user ->
+                val name = user?.toBestDisplayName() ?: "${memberPubkey.take(16)}..."
+                Text("Are you sure you want to remove \"$name\" from this group?")
+            }
+        },
+        confirmButton = {
+            TextButton(onClick = onConfirm) {
+                Text("Remove", color = MaterialTheme.colorScheme.error)
+            }
+        },
+        dismissButton = {
+            TextButton(onClick = onDismiss) {
+                Text("Cancel")
+            }
+        },
+    )
+}
+
 /** Window (in seconds) within which a relay is considered actively carrying this group's traffic. */
 private const val RELAY_ACTIVITY_WINDOW_SECS = 7L * 24 * 60 * 60
 
 @OptIn(ExperimentalLayoutApi::class)
 @Composable
-fun GroupRelayList(
+fun GroupRelayStrip(
     relayUrls: List<String>,
     relayActivity: Map<NormalizedRelayUrl, Long>,
     accountViewModel: AccountViewModel,
@@ -378,29 +536,22 @@ fun GroupRelayList(
 
     if (normalized.isEmpty()) return
 
-    Column(modifier = Modifier.padding(top = 8.dp)) {
+    FlowRow(
-        Text(
+        modifier = Modifier.padding(start = 8.dp),
-            text = "Relays",
+        horizontalArrangement = Arrangement.spacedBy(4.dp),
-            style = MaterialTheme.typography.labelMedium,
+        verticalArrangement = Arrangement.spacedBy(4.dp),
-            color = MaterialTheme.colorScheme.onSurfaceVariant,
+    ) {
-        )
+        val nowSeconds = System.currentTimeMillis() / 1000L
-        FlowRow(
+        normalized.forEach { (raw, relay) ->
-            modifier = Modifier.padding(top = 4.dp),
+            val lastSeen = relayActivity[relay]
-            horizontalArrangement = Arrangement.spacedBy(8.dp),
+            val isActive = lastSeen != null && (nowSeconds - lastSeen) <= RELAY_ACTIVITY_WINDOW_SECS
-            verticalArrangement = Arrangement.spacedBy(8.dp),
+            GroupRelayTile(
-        ) {
+                relay = relay,
-            val nowSeconds = System.currentTimeMillis() / 1000L
+                fallbackUrl = raw,
-            normalized.forEach { (raw, relay) ->
+                isActive = isActive,
-                val lastSeen = relayActivity[relay]
+                accountViewModel = accountViewModel,
-                val isActive = lastSeen != null && (nowSeconds - lastSeen) <= RELAY_ACTIVITY_WINDOW_SECS
+                nav = nav,
-                GroupRelayTile(
+            )
-                    relay = relay,
-                    fallbackUrl = raw,
-                    isActive = isActive,
-                    accountViewModel = accountViewModel,
-                    nav = nav,
-                )
-            }
         }
     }
 }
@@ -421,7 +572,7 @@ fun GroupRelayTile(
     val clickableModifier =
         remember(relay) {
             Modifier
-                .size(55.dp)
+                .size(35.dp)
                 .combinedClickable(
                     indication = ripple24dp,
                     interactionSource = MutableInteractionSource(),
@@ -444,7 +595,7 @@ fun GroupRelayTile(
             loadProfilePicture = accountViewModel.settings.showProfilePictures(),
             pingInMs = 0,
             loadRobohash = accountViewModel.settings.isNotPerformanceMode(),
-            iconModifier = LargeRelayIconModifier,
+            iconModifier = MediumRelayIconModifier,
         )
 
         val dotColor =
@@ -458,15 +609,15 @@ fun GroupRelayTile(
             modifier =
                 Modifier
                     .align(Alignment.BottomEnd)
-                    .size(12.dp)
+                    .size(8.dp)
                     .clip(CircleShape)
                     .background(MaterialTheme.colorScheme.surface)
-                    .padding(2.dp),
+                    .padding(1.dp),
         ) {
             Box(
                 modifier =
                     Modifier
-                        .size(8.dp)
+                        .size(6.dp)
                         .clip(CircleShape)
                         .background(dotColor),
             )

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/marmotGroup/RemoveMemberScreen.kt

@@ -1,250 +0,0 @@
-/*
- * Copyright (c) 2025 Vitor Pamplona
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of
- * this software and associated documentation files (the "Software"), to deal in
- * the Software without restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
- * Software, and to permit persons to whom the Software is furnished to do so,
- * subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
- * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-package com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.marmotGroup
-
-import android.widget.Toast
-import androidx.compose.foundation.clickable
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.items
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.automirrored.filled.ArrowBack
-import androidx.compose.material.icons.filled.PersonRemove
-import androidx.compose.material3.AlertDialog
-import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.HorizontalDivider
-import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButton
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Scaffold
-import androidx.compose.material3.Text
-import androidx.compose.material3.TextButton
-import androidx.compose.material3.TopAppBar
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberCoroutineScope
-import androidx.compose.runtime.setValue
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.text.style.TextOverflow
-import androidx.compose.ui.unit.dp
-import androidx.lifecycle.compose.collectAsStateWithLifecycle
-import com.vitorpamplona.amethyst.commons.marmot.GroupMemberInfo
-import com.vitorpamplona.amethyst.ui.navigation.navs.INav
-import com.vitorpamplona.amethyst.ui.note.UserPicture
-import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
-import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.rooms.LoadUser
-import com.vitorpamplona.quartz.nip01Core.core.HexKey
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
-
-@OptIn(ExperimentalMaterial3Api::class)
-@Composable
-fun RemoveMemberScreen(
-    nostrGroupId: HexKey,
-    accountViewModel: AccountViewModel,
-    nav: INav,
-) {
-    val chatroom =
-        remember(nostrGroupId) {
-            accountViewModel.account.marmotGroupList.getOrCreateGroup(nostrGroupId)
-        }
-    val members by chatroom.members.collectAsStateWithLifecycle()
-    var memberToRemove by remember { mutableStateOf<GroupMemberInfo?>(null) }
-    var isRemoving by remember { mutableStateOf(false) }
-    val scope = rememberCoroutineScope()
-    val myPubkey = accountViewModel.account.signer.pubKey
-    val context = LocalContext.current
-
-    Scaffold(
-        topBar = {
-            TopAppBar(
-                navigationIcon = {
-                    IconButton(onClick = { nav.popBack() }) {
-                        Icon(
-                            imageVector = Icons.AutoMirrored.Filled.ArrowBack,
-                            contentDescription = "Back",
-                        )
-                    }
-                },
-                title = { Text("Remove Member") },
-            )
-        },
-    ) { padding ->
-        val removableMembers = members.filter { it.pubkey != myPubkey }
-
-        if (removableMembers.isEmpty()) {
-            Column(
-                modifier =
-                    Modifier
-                        .fillMaxSize()
-                        .padding(padding)
-                        .padding(16.dp),
-                verticalArrangement = Arrangement.Center,
-                horizontalAlignment = Alignment.CenterHorizontally,
-            ) {
-                Text(
-                    text = "No members to remove",
-                    style = MaterialTheme.typography.bodyLarge,
-                    color = MaterialTheme.colorScheme.onSurfaceVariant,
-                )
-            }
-        } else {
-            LazyColumn(
-                modifier =
-                    Modifier
-                        .fillMaxSize()
-                        .padding(padding),
-            ) {
-                item {
-                    Text(
-                        text = "Select a member to remove",
-                        style = MaterialTheme.typography.bodyMedium,
-                        color = MaterialTheme.colorScheme.onSurfaceVariant,
-                        modifier = Modifier.padding(horizontal = 16.dp, vertical = 12.dp),
-                    )
-                }
-
-                items(removableMembers, key = { it.leafIndex }) { member ->
-                    RemovableMemberRow(
-                        member = member,
-                        accountViewModel = accountViewModel,
-                        nav = nav,
-                        onRemoveClick = { memberToRemove = member },
-                    )
-                    HorizontalDivider()
-                }
-            }
-        }
-    }
-
-    if (memberToRemove != null) {
-        val member = memberToRemove!!
-        ConfirmRemoveMemberDialog(
-            memberPubkey = member.pubkey,
-            accountViewModel = accountViewModel,
-            onConfirm = {
-                memberToRemove = null
-                isRemoving = true
-                scope.launch(Dispatchers.IO) {
-                    try {
-                        accountViewModel.removeMarmotGroupMember(nostrGroupId, member.leafIndex)
-                        isRemoving = false
-                        launch(Dispatchers.Main) {
-                            Toast
-                                .makeText(context, "Member removed", Toast.LENGTH_SHORT)
-                                .show()
-                        }
-                        nav.popBack()
-                    } catch (e: Exception) {
-                        isRemoving = false
-                        launch(Dispatchers.Main) {
-                            Toast
-                                .makeText(
-                                    context,
-                                    "Failed to remove member: ${e.message}",
-                                    Toast.LENGTH_LONG,
-                                ).show()
-                        }
-                    }
-                }
-            },
-            onDismiss = { memberToRemove = null },
-        )
-    }
-}
-
-@Composable
-private fun RemovableMemberRow(
-    member: GroupMemberInfo,
-    accountViewModel: AccountViewModel,
-    nav: INav,
-    onRemoveClick: () -> Unit,
-) {
-    Row(
-        modifier =
-            Modifier
-                .fillMaxWidth()
-                .clickable(onClick = onRemoveClick)
-                .padding(horizontal = 16.dp, vertical = 10.dp),
-        verticalAlignment = Alignment.CenterVertically,
-        horizontalArrangement = Arrangement.spacedBy(12.dp),
-    ) {
-        UserPicture(
-            userHex = member.pubkey,
-            size = 36.dp,
-            accountViewModel = accountViewModel,
-            nav = nav,
-        )
-        Column(modifier = Modifier.weight(1f)) {
-            LoadUser(baseUserHex = member.pubkey, accountViewModel = accountViewModel) { user ->
-                Text(
-                    text = user?.toBestDisplayName() ?: "${member.pubkey.take(16)}...",
-                    style = MaterialTheme.typography.bodyMedium,
-                    maxLines = 1,
-                    overflow = TextOverflow.Ellipsis,
-                )
-            }
-        }
-        Icon(
-            imageVector = Icons.Default.PersonRemove,
-            contentDescription = "Remove",
-            tint = MaterialTheme.colorScheme.error,
-        )
-    }
-}
-
-@Composable
-private fun ConfirmRemoveMemberDialog(
-    memberPubkey: HexKey,
-    accountViewModel: AccountViewModel,
-    onConfirm: () -> Unit,
-    onDismiss: () -> Unit,
-) {
-    AlertDialog(
-        onDismissRequest = onDismiss,
-        title = { Text("Remove Member") },
-        text = {
-            LoadUser(baseUserHex = memberPubkey, accountViewModel = accountViewModel) { user ->
-                val name = user?.toBestDisplayName() ?: "${memberPubkey.take(16)}..."
-                Text("Are you sure you want to remove \"$name\" from this group?")
-            }
-        },
-        confirmButton = {
-            TextButton(onClick = onConfirm) {
-                Text("Remove", color = MaterialTheme.colorScheme.error)
-            }
-        },
-        dismissButton = {
-            TextButton(onClick = onDismiss) {
-                Text("Cancel")
-            }
-        },
-    )
-}

tools/marmot-interop/headless/tests-manage.sh

@@ -155,6 +155,95 @@ test_08_admin_promote_demote() {
   fi
 }
 
+test_17_readd_after_remove() {
+  banner "Test 17 — Re-add after remove restores B's leaf"
+  local id="17 re-add after remove"
+
+  # Scenario reported on the info screen: A creates a group, adds B,
+  # removes B, then adds B again. Before the fix B rejoined without a
+  # usable own_leaf, so B could see metadata but could neither decrypt
+  # new posts nor sign messages. This test catches that regression by
+  # driving a full round-trip (A→B and B→A) after the re-add.
+
+  local out gid mls_gid
+  out=$(amy_json marmot group create --name "Interop-17-readd") || {
+    record_result "$id" fail "amy create failed"; return
+  }
+  gid=$(printf '%s' "$out" | jq -r '.group_id')
+  mls_gid=$(printf '%s' "$out" | jq -r '.mls_group_id')
+  [[ -n "$gid" && -n "$mls_gid" ]] || {
+    record_result "$id" fail "missing ids from create"; return
+  }
+
+  # A adds B.
+  amy_json marmot group add "$gid" "$B_NPUB" >/dev/null || {
+    record_result "$id" fail "initial add B failed"; return
+  }
+  wait_for_invite B 60 >/dev/null || {
+    record_result "$id" fail "B never received first invite"; return
+  }
+  wn_b groups accept "$mls_gid" >/dev/null 2>&1 || true
+
+  # Confirm the baseline works: A → B and B → A both deliver.
+  amy_json marmot message send "$gid" "pre-remove hello" >/dev/null || {
+    record_result "$id" fail "A send before remove failed"; return
+  }
+  wait_for_message B "$mls_gid" "pre-remove hello" 90 || {
+    record_result "$id" fail "B missed pre-remove hello"; return
+  }
+  wn_b messages send "$mls_gid" "pre-remove pong" >/dev/null 2>&1 || true
+  amy_json marmot await message "$gid" --match "pre-remove pong" --timeout 60 >/dev/null || {
+    record_result "$id" fail "A missed B's pre-remove pong"; return
+  }
+
+  # A removes B.
+  amy_json marmot group remove "$gid" "$B_NPUB" >/dev/null || {
+    record_result "$id" fail "remove B failed"; return
+  }
+  # Let the Remove commit propagate to B's wnd.
+  local deadline=$(( $(date +%s) + 120 )) removed=0
+  while [[ $(date +%s) -lt $deadline ]]; do
+    if ! wn_b --json groups members "$mls_gid" 2>/dev/null \
+         | jq -e --arg p "$B_HEX" '(.result // .) | .[]? | select((.pubkey // .public_key) == $p)' \
+         >/dev/null 2>&1; then
+      removed=1; break
+    fi
+    sleep 3
+  done
+  [[ "$removed" -eq 1 ]] || warn "B still appears in members after remove — continuing"
+
+  # B republishes its KP so the next add can find a fresh one.
+  wn_b keys publish >/dev/null 2>&1 || true
+  sleep 3
+
+  # A re-adds B.
+  amy_json marmot group add "$gid" "$B_NPUB" >/dev/null || {
+    record_result "$id" fail "re-add B failed"; return
+  }
+  wait_for_invite B 60 >/dev/null || {
+    record_result "$id" fail "B never received second invite"; return
+  }
+  wn_b groups accept "$mls_gid" >/dev/null 2>&1 || true
+
+  # Regression probes: after re-add B must have a usable leaf again.
+  # (1) A→B: proves B can decrypt new group messages.
+  amy_json marmot message send "$gid" "post-readd hello" >/dev/null || {
+    record_result "$id" fail "A send after re-add failed"; return
+  }
+  wait_for_message B "$mls_gid" "post-readd hello" 120 || {
+    record_result "$id" fail "B didn't decrypt post-readd message (missing own_leaf?)"; return
+  }
+  # (2) B→A: proves B can still sign/commit — the exact breakage reported.
+  wn_b messages send "$mls_gid" "post-readd pong" >/dev/null 2>&1 || {
+    record_result "$id" fail "B send after re-add failed (likely no leaf)"; return
+  }
+  if amy_json marmot await message "$gid" --match "post-readd pong" --timeout 120 >/dev/null; then
+    record_result "$id" pass
+  else
+    record_result "$id" fail "A never saw B's post-readd pong (B couldn't type)"
+  fi
+}
+
 test_11_leave_group() {
   banner "Test 11 — Leave group"
   local id="11 leave group"

tools/marmot-interop/marmot-interop-headless.sh

@@ -123,3 +123,4 @@ test_13_keypackage_rotation
 test_14_wn_removes_a
 test_15_wn_member_leaves
 test_16_wn_keypackage_rotation
+test_17_readd_after_remove