feat(#500): tap-to-reveal detail dialog for truncated item descriptions (#501)

* feat(#500): tap-to-reveal detail dialog for truncated cards

Add shared DetailDialog composable and wire tap-to-open full metadata
dialogs across Skills (installed + hub), MCP servers, Plugins, Toolsets,
and Webhooks screens. Action buttons stay on the card (sticky); tapping
the card body reveals untruncated description + key metadata.

Refs: #500

* fix(#500): resolve compile errors from missing runtime imports + dialog scope

- add missing androidx.compose.runtime.mutableStateOf/remember imports
  in InstalledSkillsTab + HubSkillsTab (caused 'Unresolved reference'
  cascade on compileDebugKotlin)
- move PluginsScreen detail dialog inside the composable function scope
  (was nested in OrphanPluginCard -> showDetail unresolved)
- DetailDialog rows type: Pair<String?,String?> -> Pair<String,String?>
  (key always non-null; fixes type-inference failure)
- drop unnecessary safe call on non-null label

Verified locally with the Android SDK:
  ./gradlew :app:compileDebugKotlin  -> BUILD SUCCESSFUL
  ./gradlew :app:testDebugUnitTest   -> BUILD SUCCESSFUL

Refs: #500

* refactor(#500): extract toDetailRows() mappers + semantic status tones; wire SkillsScreen hub browse

- add DetailRows.kt with @Composable extension mappers for Skill/HubSkill/
  McpServer/PluginInfo/Toolset/WebhookSubscription -> List<DetailRow>
- DetailDialog now renders status rows via LocalHermesStatusColors (review #2):
  SUCCESS/NEUTRAL/WARNING/ERROR/INFO tones instead of plain onSurfaceVariant
- wire SkillsScreen.HubBrowseView/HubSkillCard tap -> DetailDialog (same UX as
  other screens) — user request
- remove JVM-signature-clashing Pair overload; drop unused Color import
- add detail_dialog_trust_level string (HubSkill has no version field)
- verified: compileDebugKotlin + testDebugUnitTest PASS locally w/ ANDROID_HOME

* fix(#500): full hub description in dialog + no name truncation

- HubBrowseView (both SkillsScreen + HubSkillsTab): on card tap, fetch
  previewHubSkill(identifier) to get the FULL SkillContentResponse.content
  (search snippet was truncated); dialog shows full content once loaded,
  with a spinner while previewing. Falls back to snippet if no identifier.
- SkillsViewModel: add hubPreviewContent/isHubPreviewing/hubPreviewError
  state + previewHubSkill()/clearHubPreview() (uses existing preview endpoint)
- DetailDialog: title now wraps fully (removed maxLines=2 ellipsis cap) so
  long skill names are never cut off
- verified: compileDebugKotlin PASS + ktlint clean (local ANDROID_HOME)

app/src/main/java/com/m57/hermescontrol/ui/common/DetailDialog.kt

@@ -0,0 +1,124 @@
+package com.m57.hermescontrol.ui.common
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.Card
+import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.window.Dialog
+import com.m57.hermescontrol.theme.LocalHermesStatusColors
+
+/**
+ * Semantic tone for a detail row's value text.
+ * NONEl uses the default on-surface variant; the rest pull from
+ * [LocalHermesStatusColors] so status feedback stays brand-correct
+ * regardless of the wallpaper-derived Material palette.
+ */
+enum class DetailRowTone {
+    NONE,
+    SUCCESS,
+    WARNING,
+    ERROR,
+    INFO,
+    NEUTRAL,
+}
+
+/**
+ * A single label/value row shown in [DetailDialog].
+ *
+ * @param label Non-null resource string (already resolved by the mapper).
+ * @param value Display value; null/blank rows are skipped at render time.
+ * @param tone Semantic tone for the value text (defaults to [DetailRowTone.NONE]).
+ */
+data class DetailRow(
+    val label: String,
+    val value: String?,
+    val tone: DetailRowTone = DetailRowTone.NONE,
+)
+
+/**
+ * Reusable tap-to-reveal detail dialog: a title plus a scrollable list of
+ * label/value rows. Null/blank rows are skipped automatically. An optional
+ * [actions] slot renders after the rows (inside the scroll area) so primary
+ * actions stay visible without the user dismissing the dialog.
+ */
+@Composable
+fun DetailDialog(
+    title: String,
+    rows: List<DetailRow>,
+    onDismiss: () -> Unit,
+    actions: @Composable (() -> Unit)? = null,
+) {
+    val statusColors = LocalHermesStatusColors.current
+
+    Dialog(onDismissRequest = onDismiss) {
+        Card(
+            modifier = Modifier.fillMaxWidth(),
+            colors =
+                CardDefaults.cardColors(
+                    containerColor = MaterialTheme.colorScheme.surface,
+                ),
+        ) {
+            HermesScaffold(
+                title = { Text(title, style = MaterialTheme.typography.titleLarge) },
+                navigationIcon = NavIcon.Back(onDismiss),
+                isRefreshing = false,
+            ) { padding ->
+                val visibleRows = rows.filter { !it.value.isNullOrBlank() }
+                Column(
+                    modifier =
+                        Modifier
+                            .padding(padding)
+                            .fillMaxWidth()
+                            .verticalScroll(rememberScrollState())
+                            .padding(16.dp),
+                    verticalArrangement = Arrangement.spacedBy(12.dp),
+                ) {
+                    visibleRows.forEachIndexed { index, (label, value, tone) ->
+                        if (index > 0) {
+                            HorizontalDivider()
+                        }
+                        Column(verticalArrangement = Arrangement.spacedBy(2.dp)) {
+                            Text(
+                                text = label,
+                                style = MaterialTheme.typography.labelSmall,
+                                fontWeight = FontWeight.Bold,
+                                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                            )
+                            Text(
+                                text = value ?: "",
+                                style = MaterialTheme.typography.bodyMedium,
+                                color =
+                                    when (tone) {
+                                        DetailRowTone.SUCCESS -> statusColors.success
+                                        DetailRowTone.WARNING -> statusColors.warning
+                                        DetailRowTone.ERROR -> statusColors.error
+                                        DetailRowTone.INFO -> statusColors.info
+                                        DetailRowTone.NEUTRAL -> statusColors.neutral
+                                        DetailRowTone.NONE -> MaterialTheme.colorScheme.onSurfaceVariant
+                                    },
+                            )
+                        }
+                    }
+
+                    if (actions != null) {
+                        if (visibleRows.isNotEmpty()) {
+                            HorizontalDivider()
+                        }
+                        actions()
+                    }
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/m57/hermescontrol/ui/common/DetailRows.kt

@@ -0,0 +1,122 @@
+package com.m57.hermescontrol.ui.common
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import com.m57.hermescontrol.R
+import com.m57.hermescontrol.data.model.HubSkill
+import com.m57.hermescontrol.data.model.McpServer
+import com.m57.hermescontrol.data.model.PluginInfo
+import com.m57.hermescontrol.data.model.Skill
+import com.m57.hermescontrol.data.model.Toolset
+import com.m57.hermescontrol.data.model.WebhookSubscription
+
+/**
+ * Mappers that turn a domain model into the rows shown by [DetailDialog].
+ * Keeping these here (instead of inline in each screen) avoids the
+ * showDetail + DetailDialog wiring being copied across six screens.
+ */
+
+@Composable
+fun Skill.toDetailRows(): List<DetailRow> =
+    listOf(
+        DetailRow(stringResource(R.string.detail_dialog_category), category),
+        DetailRow(stringResource(R.string.detail_dialog_source), source),
+        DetailRow(stringResource(R.string.detail_dialog_description), description),
+    )
+
+@Composable
+fun HubSkill.toDetailRows(): List<DetailRow> =
+    listOf(
+        DetailRow(stringResource(R.string.detail_dialog_category), category),
+        DetailRow(stringResource(R.string.detail_dialog_source), source),
+        DetailRow(stringResource(R.string.detail_dialog_description), description),
+        DetailRow(stringResource(R.string.detail_dialog_tags), tags.orEmpty().joinToString(", ")),
+        DetailRow(stringResource(R.string.detail_dialog_trust_level), trustLevel),
+    )
+
+@Composable
+fun McpServer.toDetailRows(): List<DetailRow> {
+    val commandSummary =
+        buildString {
+            if (command?.isNotBlank() == true) append(command)
+            if (!args.isNullOrEmpty()) append(" " + args.joinToString(" "))
+        }.trim().ifBlank { null }
+
+    return listOf(
+        DetailRow(stringResource(R.string.detail_dialog_transport), transport),
+        DetailRow(stringResource(R.string.detail_dialog_status), status, toneForStatus(status)),
+        DetailRow(stringResource(R.string.detail_dialog_url), url),
+        DetailRow(stringResource(R.string.detail_dialog_command), commandSummary),
+        DetailRow(
+            stringResource(R.string.detail_dialog_env_vars),
+            env?.entries?.joinToString("\n") { "${it.key}=${it.value}" },
+        ),
+        DetailRow(stringResource(R.string.detail_dialog_error), error),
+    )
+}
+
+@Composable
+fun PluginInfo.toDetailRows(): List<DetailRow> =
+    listOf(
+        DetailRow(stringResource(R.string.detail_dialog_version), version),
+        DetailRow(stringResource(R.string.detail_dialog_source), source),
+        DetailRow(
+            stringResource(R.string.detail_dialog_status),
+            runtimeStatus,
+            toneForStatus(runtimeStatus),
+        ),
+        DetailRow(stringResource(R.string.detail_dialog_description), description),
+    )
+
+@Composable
+fun Toolset.toDetailRows(): List<DetailRow> =
+    listOf(
+        DetailRow(stringResource(R.string.detail_dialog_label), label),
+        DetailRow(stringResource(R.string.detail_dialog_description), description),
+        DetailRow(stringResource(R.string.detail_dialog_tools), tools.orEmpty().joinToString(", ")),
+        DetailRow(
+            stringResource(R.string.detail_dialog_status),
+            if (enabled) {
+                stringResource(R.string.detail_dialog_status_enabled)
+            } else {
+                stringResource(R.string.detail_dialog_status_disabled)
+            },
+            if (enabled) DetailRowTone.SUCCESS else DetailRowTone.NEUTRAL,
+        ),
+    )
+
+@Composable
+fun WebhookSubscription.toDetailRows(): List<DetailRow> =
+    listOf(
+        DetailRow(
+            stringResource(R.string.detail_dialog_status),
+            if (enabled == true) {
+                stringResource(R.string.detail_dialog_status_enabled)
+            } else {
+                stringResource(R.string.detail_dialog_status_disabled)
+            },
+            if (enabled == true) DetailRowTone.SUCCESS else DetailRowTone.NEUTRAL,
+        ),
+        DetailRow(stringResource(R.string.detail_dialog_deliver), deliver),
+        DetailRow(stringResource(R.string.detail_dialog_description), description),
+        DetailRow(stringResource(R.string.detail_dialog_events), events.orEmpty().joinToString(", ")),
+        DetailRow(stringResource(R.string.detail_dialog_prompt), prompt),
+        DetailRow(stringResource(R.string.detail_dialog_skills), skills.orEmpty().joinToString(", ")),
+        DetailRow(stringResource(R.string.detail_dialog_url), url),
+        DetailRow(stringResource(R.string.detail_dialog_created_at), created_at),
+    )
+
+/**
+ * Map a free-form status string to a semantic tone. Recognises the app's
+ * common status vocabulary (enabled/active/running/ok → success, etc.).
+ */
+private fun toneForStatus(status: String?): DetailRowTone {
+    if (status.isNullOrBlank()) return DetailRowTone.NONE
+    return when (status.lowercase()) {
+        "enabled", "active", "running", "ok", "online", "connected" -> DetailRowTone.SUCCESS
+        "disabled", "inactive", "offline", "disconnected" -> DetailRowTone.NEUTRAL
+        "error", "failed", "unreachable" -> DetailRowTone.ERROR
+        "warning", "degraded" -> DetailRowTone.WARNING
+        else -> DetailRowTone.NONE
+    }
+}

app/src/main/java/com/m57/hermescontrol/ui/mcp/McpServersScreen.kt

@@ -1,6 +1,7 @@
 package com.m57.hermescontrol.ui.mcp
 
 import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -57,6 +58,7 @@ import com.m57.hermescontrol.R
 import com.m57.hermescontrol.data.model.McpCatalogEntry
 import com.m57.hermescontrol.data.model.McpServer
 import com.m57.hermescontrol.theme.LocalSpacing
+import com.m57.hermescontrol.ui.common.DetailDialog
 import com.m57.hermescontrol.ui.common.EmptyState
 import com.m57.hermescontrol.ui.common.ErrorState
 import com.m57.hermescontrol.ui.common.HermesScaffold
@@ -69,6 +71,7 @@ import com.m57.hermescontrol.ui.common.StatusBadgeType
 import com.m57.hermescontrol.ui.common.ToastEffect
 import com.m57.hermescontrol.ui.common.listContentPadding
 import com.m57.hermescontrol.ui.common.listItemSpacing
+import com.m57.hermescontrol.ui.common.toDetailRows
 
 @Composable
 fun McpServersScreen(
@@ -79,6 +82,7 @@ fun McpServersScreen(
     val state by viewModel.uiState.collectAsStateWithLifecycle()
     val spacing = LocalSpacing.current
     var query by remember { mutableStateOf("") }
+    var showDetail by remember { mutableStateOf<McpServer?>(null) }
 
     val filteredServers =
         remember(query, state.servers) {
@@ -162,7 +166,13 @@ fun McpServersScreen(
                     }
 
                     items(filteredServers, key = { "server:${it.name}" }) { server ->
-                        ServerCard(server = server, state = state, viewModel = viewModel, spacing = spacing)
+                        ServerCard(
+                            server = server,
+                            state = state,
+                            viewModel = viewModel,
+                            spacing = spacing,
+                            onClick = { showDetail = server },
+                        )
                     }
 
                     // ── 4. Catalog ──────────────────────────────────────
@@ -178,6 +188,14 @@ fun McpServersScreen(
             }
         }
     }
+
+    showDetail?.let { server ->
+        DetailDialog(
+            title = server.name,
+            rows = server.toDetailRows(),
+            onDismiss = { showDetail = null },
+        )
+    }
 }
 
 // ── Sections ──────────────────────────────────────────────────────
@@ -279,11 +297,12 @@ private fun ServerCard(
     state: McpServersUiState,
     viewModel: McpServersViewModel,
     spacing: com.m57.hermescontrol.theme.Spacing,
+    onClick: () -> Unit,
 ) {
     var showEnv by remember { mutableStateOf(false) }
 
     Card(
-        modifier = Modifier.fillMaxWidth(),
+        modifier = Modifier.fillMaxWidth().clickable(onClick = onClick),
         colors =
             CardDefaults.cardColors(
                 containerColor =

app/src/main/java/com/m57/hermescontrol/ui/plugins/PluginsScreen.kt

@@ -1,5 +1,6 @@
 package com.m57.hermescontrol.ui.plugins
 
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
@@ -51,6 +52,7 @@ import androidx.lifecycle.viewmodel.compose.viewModel
 import com.m57.hermescontrol.R
 import com.m57.hermescontrol.data.model.PluginInfo
 import com.m57.hermescontrol.theme.LocalHermesStatusColors
+import com.m57.hermescontrol.ui.common.DetailDialog
 import com.m57.hermescontrol.ui.common.EmptyState
 import com.m57.hermescontrol.ui.common.ErrorState
 import com.m57.hermescontrol.ui.common.HermesScaffold
@@ -60,6 +62,7 @@ import com.m57.hermescontrol.ui.common.SearchBar
 import com.m57.hermescontrol.ui.common.ToastEffect
 import com.m57.hermescontrol.ui.common.listContentPadding
 import com.m57.hermescontrol.ui.common.listItemSpacing
+import com.m57.hermescontrol.ui.common.toDetailRows
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -71,6 +74,7 @@ fun PluginsScreen(
     val state by viewModel.uiState.collectAsStateWithLifecycle()
 
     var query by remember { mutableStateOf("") }
+    var showDetail by remember { mutableStateOf<PluginInfo?>(null) }
 
     val filteredPlugins =
         remember(query, state.plugins) {
@@ -176,7 +180,12 @@ fun PluginsScreen(
 
                         // Plugin list
                         items(filteredPlugins, key = { it.name }) { plugin ->
-                            PluginCard(plugin = plugin, state = state, viewModel = viewModel)
+                            PluginCard(
+                                plugin = plugin,
+                                state = state,
+                                viewModel = viewModel,
+                                onClick = { showDetail = plugin },
+                            )
                         }
 
                         // Orphan dashboard plugins section
@@ -191,7 +200,7 @@ fun PluginsScreen(
                                 )
                             }
                             items(state.orphanPlugins, key = { "orphan-${it.name}" }) { plugin ->
-                                OrphanPluginCard(plugin = plugin)
+                                OrphanPluginCard(plugin = plugin, onClick = { showDetail = plugin })
                             }
                         }
                     }
@@ -199,6 +208,14 @@ fun PluginsScreen(
             }
         }
     }
+
+    showDetail?.let { plugin ->
+        DetailDialog(
+            title = plugin.name,
+            rows = plugin.toDetailRows(),
+            onDismiss = { showDetail = null },
+        )
+    }
 }
 
 @OptIn(ExperimentalMaterial3Api::class)
@@ -422,11 +439,12 @@ private fun PluginCard(
     plugin: PluginInfo,
     state: PluginsUiState,
     viewModel: PluginsViewModel,
+    onClick: () -> Unit,
 ) {
     val busy = state.rowBusy == plugin.name
     val statusColors = LocalHermesStatusColors.current
 
-    Card(modifier = Modifier.fillMaxWidth()) {
+    Card(modifier = Modifier.fillMaxWidth().clickable(onClick = onClick)) {
         Column(modifier = Modifier.padding(16.dp)) {
             // Header row: name + toggle
             Row(
@@ -588,8 +606,11 @@ private fun PluginCard(
 }
 
 @Composable
-private fun OrphanPluginCard(plugin: PluginInfo) {
+private fun OrphanPluginCard(
-    Card(modifier = Modifier.fillMaxWidth()) {
+    plugin: PluginInfo,
+    onClick: () -> Unit,
+) {
+    Card(modifier = Modifier.fillMaxWidth().clickable(onClick = onClick)) {
         Row(
             modifier = Modifier.padding(12.dp),
             verticalAlignment = Alignment.CenterVertically,

app/src/main/java/com/m57/hermescontrol/ui/skills/SkillsScreen.kt

@@ -1,5 +1,6 @@
 package com.m57.hermescontrol.ui.skills
 
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -64,6 +65,8 @@ import com.m57.hermescontrol.R
 import com.m57.hermescontrol.data.model.HubSkill
 import com.m57.hermescontrol.data.model.Skill
 import com.m57.hermescontrol.theme.LocalHermesStatusColors
+import com.m57.hermescontrol.ui.common.DetailDialog
+import com.m57.hermescontrol.ui.common.DetailRow
 import com.m57.hermescontrol.ui.common.EmptyState
 import com.m57.hermescontrol.ui.common.ErrorState
 import com.m57.hermescontrol.ui.common.FilterChipRow
@@ -74,6 +77,7 @@ import com.m57.hermescontrol.ui.common.SearchBar
 import com.m57.hermescontrol.ui.common.ToastEffect
 import com.m57.hermescontrol.ui.common.listContentPadding
 import com.m57.hermescontrol.ui.common.listItemSpacing
+import com.m57.hermescontrol.ui.common.toDetailRows
 
 internal const val CATEGORY_ALL = "All"
 
@@ -156,6 +160,7 @@ fun SkillsScreen(
                         onSearch = viewModel::searchHub,
                         onClearSearch = viewModel::clearHubSearch,
                         onInstall = viewModel::installSkill,
+                        onPreviewHubSkill = viewModel::previewHubSkill,
                         isInstalling = state.isInstalling,
                         installingSkillName = state.installingSkillName,
                     )
@@ -214,6 +219,8 @@ private fun InstalledSkillsView(
     uninstallingSkillName: String?,
     onRefresh: () -> Unit,
 ) {
+    var showDetail by remember { mutableStateOf<Skill?>(null) }
+
     val categories =
         remember(state.skills) {
             state.skills
@@ -347,12 +354,21 @@ private fun InstalledSkillsView(
                                     null
                                 },
                             isUninstalling = isUninstalling && uninstallingSkillName == skill.name,
+                            onClick = { showDetail = skill },
                         )
                     }
                 }
             }
         }
     }
+
+    showDetail?.let { skill ->
+        DetailDialog(
+            title = skill.name,
+            rows = skill.toDetailRows(),
+            onDismiss = { showDetail = null },
+        )
+    }
 }
 
 // ── Skill Card ─────────────────────────────────────────────────────────
@@ -364,9 +380,10 @@ private fun SkillCard(
     onAction: () -> Unit,
     onUninstall: (() -> Unit)?,
     isUninstalling: Boolean,
+    onClick: () -> Unit,
 ) {
     Card(
-        modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp),
+        modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp).clickable(onClick = onClick),
         colors =
             CardDefaults.cardColors(
                 containerColor = MaterialTheme.colorScheme.surface,
@@ -514,9 +531,12 @@ private fun HubBrowseView(
     onSearch: (String) -> Unit,
     onClearSearch: () -> Unit,
     onInstall: (String) -> Unit,
+    onPreviewHubSkill: (String) -> Unit,
     isInstalling: Boolean,
     installingSkillName: String?,
 ) {
+    var hubShowDetail by remember { mutableStateOf<HubSkill?>(null) }
+
     Column(modifier = Modifier.fillMaxSize()) {
         OutlinedTextField(
             value = hubQuery,
@@ -597,6 +617,10 @@ private fun HubBrowseView(
                             hubSkill = hubSkill,
                             onInstall = { onInstall(hubSkill.name) },
                             isInstalling = isInstalling && installingSkillName == hubSkill.name,
+                            onClick = {
+                                hubShowDetail = hubSkill
+                                hubSkill.identifier?.let { onPreviewHubSkill(it) }
+                            },
                         )
                     }
                 }
@@ -610,6 +634,34 @@ private fun HubBrowseView(
             }
         }
     }
+
+    hubShowDetail?.let { hubSkill ->
+        val previewReady = state.hubPreviewIdentifier == hubSkill.identifier
+        val fullContent =
+            if (previewReady) {
+                state.hubPreviewContent ?: hubSkill.description
+            } else {
+                hubSkill.description
+            }
+        DetailDialog(
+            title = hubSkill.name,
+            rows =
+                listOf(
+                    DetailRow(stringResource(R.string.detail_dialog_category), hubSkill.category),
+                    DetailRow(stringResource(R.string.detail_dialog_source), hubSkill.source),
+                    DetailRow(stringResource(R.string.detail_dialog_description), fullContent),
+                    DetailRow(stringResource(R.string.detail_dialog_tags), hubSkill.tags.orEmpty().joinToString(", ")),
+                    DetailRow(stringResource(R.string.detail_dialog_trust_level), hubSkill.trustLevel),
+                ),
+            actions =
+                if (previewReady && state.isHubPreviewing) {
+                    { CircularProgressIndicator(modifier = Modifier.padding(top = 8.dp)) }
+                } else {
+                    null
+                },
+            onDismiss = { hubShowDetail = null },
+        )
+    }
 }
 
 // ── Hub Skill Card ─────────────────────────────────────────────────────
@@ -619,9 +671,10 @@ private fun HubSkillCard(
     hubSkill: HubSkill,
     onInstall: () -> Unit,
     isInstalling: Boolean,
+    onClick: () -> Unit,
 ) {
     Card(
-        modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp),
+        modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp).clickable(onClick = onClick),
         colors =
             CardDefaults.cardColors(
                 containerColor = MaterialTheme.colorScheme.surface,

app/src/main/java/com/m57/hermescontrol/ui/skills/SkillsViewModel.kt

@@ -56,6 +56,11 @@ data class SkillsUiState(
     val hubResults: List<HubSkill> = emptyList(),
     val isHubSearching: Boolean = false,
     val hubSearchError: String? = null,
+    // Hub detail preview (full description/content via preview endpoint)
+    val hubPreviewIdentifier: String? = null,
+    val hubPreviewContent: String? = null,
+    val isHubPreviewing: Boolean = false,
+    val hubPreviewError: String? = null,
     // Hub install
     val isInstalling: Boolean = false,
     val installingSkillName: String? = null,
@@ -153,6 +158,60 @@ class SkillsViewModel(application: Application) :
         }
     }
 
+    // ── Hub detail preview ──────────────────────────────────────────────────
+
+    /**
+     * Fetches the full skill content via the preview endpoint so the detail
+     * dialog can show the complete description (search results only carry a
+     * truncated snippet).
+     */
+    fun previewHubSkill(identifier: String) {
+        if (identifier.isBlank()) return
+        _uiState.update {
+            it.copy(
+                hubPreviewIdentifier = identifier,
+                isHubPreviewing = true,
+                hubPreviewError = null,
+                hubPreviewContent = null,
+            )
+        }
+        viewModelScope.launch {
+            val result =
+                withContext(Dispatchers.IO) {
+                    safeApiCall { ApiClient.hermesApi.previewHubSkill(identifier = identifier) }
+                }
+            when (result) {
+                is NetworkResult.Success -> {
+                    _uiState.update {
+                        it.copy(
+                            isHubPreviewing = false,
+                            hubPreviewContent = result.data.content,
+                        )
+                    }
+                }
+                is NetworkResult.Failure -> {
+                    _uiState.update {
+                        it.copy(
+                            isHubPreviewing = false,
+                            hubPreviewError = result.error.message,
+                        )
+                    }
+                }
+            }
+        }
+    }
+
+    fun clearHubPreview() {
+        _uiState.update {
+            it.copy(
+                hubPreviewIdentifier = null,
+                hubPreviewContent = null,
+                isHubPreviewing = false,
+                hubPreviewError = null,
+            )
+        }
+    }
+
     // ── Hub install ─────────────────────────────────────────────────────────
 
     fun installSkill(identifier: String) {

app/src/main/java/com/m57/hermescontrol/ui/skills/components/HubSkillsTab.kt

@@ -1,5 +1,6 @@
 package com.m57.hermescontrol.ui.skills.components
 
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
@@ -31,6 +32,8 @@ import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
@@ -41,6 +44,8 @@ import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import com.m57.hermescontrol.R
 import com.m57.hermescontrol.data.model.HubSkill
+import com.m57.hermescontrol.ui.common.DetailDialog
+import com.m57.hermescontrol.ui.common.DetailRow
 import com.m57.hermescontrol.ui.common.EmptyState
 import com.m57.hermescontrol.ui.common.ErrorState
 import com.m57.hermescontrol.ui.common.LoadingState
@@ -56,9 +61,12 @@ internal fun HubBrowseView(
     onSearch: (String) -> Unit,
     onClearSearch: () -> Unit,
     onInstall: (String) -> Unit,
+    onPreviewHubSkill: (String) -> Unit,
     isInstalling: Boolean,
     installingSkillName: String?,
 ) {
+    var showDetail by remember { mutableStateOf<HubSkill?>(null) }
+
     Column(modifier = Modifier.fillMaxSize()) {
         OutlinedTextField(
             value = hubQuery,
@@ -139,6 +147,10 @@ internal fun HubBrowseView(
                             hubSkill = hubSkill,
                             onInstall = { onInstall(hubSkill.name) },
                             isInstalling = isInstalling && installingSkillName == hubSkill.name,
+                            onClick = {
+                                showDetail = hubSkill
+                                hubSkill.identifier?.let { onPreviewHubSkill(it) }
+                            },
                         )
                     }
                 }
@@ -152,6 +164,34 @@ internal fun HubBrowseView(
             }
         }
     }
+
+    showDetail?.let { hubSkill ->
+        val previewReady = state.hubPreviewIdentifier == hubSkill.identifier
+        val fullContent =
+            if (previewReady) {
+                state.hubPreviewContent ?: hubSkill.description
+            } else {
+                hubSkill.description
+            }
+        DetailDialog(
+            title = hubSkill.name,
+            rows =
+                listOf(
+                    DetailRow(stringResource(R.string.detail_dialog_category), hubSkill.category),
+                    DetailRow(stringResource(R.string.detail_dialog_source), hubSkill.source),
+                    DetailRow(stringResource(R.string.detail_dialog_description), fullContent),
+                    DetailRow(stringResource(R.string.detail_dialog_tags), hubSkill.tags.orEmpty().joinToString(", ")),
+                    DetailRow(stringResource(R.string.detail_dialog_trust_level), hubSkill.trustLevel),
+                ),
+            actions =
+                if (previewReady && state.isHubPreviewing) {
+                    { CircularProgressIndicator(modifier = Modifier.padding(top = 8.dp)) }
+                } else {
+                    null
+                },
+            onDismiss = { showDetail = null },
+        )
+    }
 }
 
 @Composable
@@ -159,9 +199,10 @@ private fun HubSkillCard(
     hubSkill: HubSkill,
     onInstall: () -> Unit,
     isInstalling: Boolean,
+    onClick: () -> Unit,
 ) {
     Card(
-        modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp),
+        modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp).clickable(onClick = onClick),
         colors =
             CardDefaults.cardColors(
                 containerColor = MaterialTheme.colorScheme.surface,

app/src/main/java/com/m57/hermescontrol/ui/skills/components/InstalledSkillsTab.kt

@@ -1,5 +1,6 @@
 package com.m57.hermescontrol.ui.skills.components
 
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -30,6 +31,7 @@ import androidx.compose.material3.Switch
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
@@ -44,6 +46,7 @@ import androidx.compose.ui.window.DialogProperties
 import com.m57.hermescontrol.R
 import com.m57.hermescontrol.data.model.Skill
 import com.m57.hermescontrol.theme.LocalHermesStatusColors
+import com.m57.hermescontrol.ui.common.DetailDialog
 import com.m57.hermescontrol.ui.common.EmptyState
 import com.m57.hermescontrol.ui.common.ErrorState
 import com.m57.hermescontrol.ui.common.FilterChipRow
@@ -53,6 +56,7 @@ import com.m57.hermescontrol.ui.common.NavIcon
 import com.m57.hermescontrol.ui.common.SearchBar
 import com.m57.hermescontrol.ui.common.listContentPadding
 import com.m57.hermescontrol.ui.common.listItemSpacing
+import com.m57.hermescontrol.ui.common.toDetailRows
 import com.m57.hermescontrol.ui.skills.CATEGORY_ALL
 import com.m57.hermescontrol.ui.skills.SkillFilter
 import com.m57.hermescontrol.ui.skills.SkillsUiState
@@ -75,6 +79,8 @@ internal fun InstalledSkillsView(
     uninstallingSkillName: String?,
     onRefresh: () -> Unit,
 ) {
+    var showDetail by remember { mutableStateOf<Skill?>(null) }
+
     val categories =
         remember(state.skills) {
             state.skills
@@ -208,12 +214,23 @@ internal fun InstalledSkillsView(
                                     null
                                 },
                             isUninstalling = isUninstalling && uninstallingSkillName == skill.name,
+                            onClick = {
+                                showDetail = skill
+                            },
                         )
                     }
                 }
             }
         }
     }
+
+    showDetail?.let { skill ->
+        DetailDialog(
+            title = skill.name,
+            rows = skill.toDetailRows(),
+            onDismiss = { showDetail = null },
+        )
+    }
 }
 
 @Composable
@@ -223,9 +240,10 @@ private fun SkillCard(
     onAction: () -> Unit,
     onUninstall: (() -> Unit)?,
     isUninstalling: Boolean,
+    onClick: () -> Unit,
 ) {
     Card(
-        modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp),
+        modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp).clickable(onClick = onClick),
         colors =
             CardDefaults.cardColors(
                 containerColor = MaterialTheme.colorScheme.surface,

app/src/main/java/com/m57/hermescontrol/ui/toolsets/ToolsetsScreen.kt

@@ -1,5 +1,6 @@
 package com.m57.hermescontrol.ui.toolsets
 
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -38,6 +39,8 @@ import androidx.compose.ui.unit.dp
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.m57.hermescontrol.R
+import com.m57.hermescontrol.data.model.Toolset
+import com.m57.hermescontrol.ui.common.DetailDialog
 import com.m57.hermescontrol.ui.common.EmptyState
 import com.m57.hermescontrol.ui.common.ErrorState
 import com.m57.hermescontrol.ui.common.HermesScaffold
@@ -47,6 +50,7 @@ import com.m57.hermescontrol.ui.common.SearchBar
 import com.m57.hermescontrol.ui.common.ToastEffect
 import com.m57.hermescontrol.ui.common.listContentPadding
 import com.m57.hermescontrol.ui.common.listItemSpacing
+import com.m57.hermescontrol.ui.common.toDetailRows
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -58,6 +62,7 @@ fun ToolsetsScreen(
     val state by viewModel.uiState.collectAsStateWithLifecycle()
 
     var query by remember { mutableStateOf("") }
+    var showDetail by remember { mutableStateOf<Toolset?>(null) }
 
     val filteredToolsets =
         remember(query, state.toolsets) {
@@ -136,7 +141,7 @@ fun ToolsetsScreen(
                             }
                             items(filteredToolsets, key = { it.name }) { toolset ->
                                 Card(
-                                    modifier = Modifier.fillMaxWidth(),
+                                    modifier = Modifier.fillMaxWidth().clickable(onClick = { showDetail = toolset }),
                                     colors =
                                         CardDefaults.cardColors(
                                             containerColor =
@@ -208,5 +213,13 @@ fun ToolsetsScreen(
                 }
             }
         }
+
+        showDetail?.let { toolset ->
+            DetailDialog(
+                title = toolset.label ?: toolset.name,
+                rows = toolset.toDetailRows(),
+                onDismiss = { showDetail = null },
+            )
+        }
     }
 }

app/src/main/java/com/m57/hermescontrol/ui/webhooks/WebhooksScreen.kt

@@ -1,5 +1,6 @@
 package com.m57.hermescontrol.ui.webhooks
 
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.FlowRow
@@ -48,6 +49,7 @@ import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.m57.hermescontrol.R
 import com.m57.hermescontrol.data.model.WebhookSubscription
+import com.m57.hermescontrol.ui.common.DetailDialog
 import com.m57.hermescontrol.ui.common.EmptyState
 import com.m57.hermescontrol.ui.common.ErrorState
 import com.m57.hermescontrol.ui.common.HermesScaffold
@@ -59,6 +61,7 @@ import com.m57.hermescontrol.ui.common.StatusBadgeType
 import com.m57.hermescontrol.ui.common.ToastEffect
 import com.m57.hermescontrol.ui.common.listContentPadding
 import com.m57.hermescontrol.ui.common.listItemSpacing
+import com.m57.hermescontrol.ui.common.toDetailRows
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -70,6 +73,7 @@ fun WebhooksScreen(
     val state by viewModel.uiState.collectAsStateWithLifecycle()
 
     var query by remember { mutableStateOf("") }
+    var showDetail by remember { mutableStateOf<WebhookSubscription?>(null) }
 
     val filteredSubscriptions =
         remember(query, state.subscriptions) {
@@ -356,6 +360,7 @@ fun WebhooksScreen(
                                 isToggling = state.togglingName == sub.name,
                                 onToggle = { enabled -> viewModel.toggleSubscription(sub.name, enabled) },
                                 onDelete = { viewModel.promptDeleteSubscription(sub) },
+                                onClick = { showDetail = sub },
                             )
                         }
                     }
@@ -363,6 +368,14 @@ fun WebhooksScreen(
             }
         }
     }
+
+    showDetail?.let { sub ->
+        DetailDialog(
+            title = sub.name,
+            rows = sub.toDetailRows(),
+            onDismiss = { showDetail = null },
+        )
+    }
 }
 
 @Composable
@@ -371,11 +384,12 @@ private fun SubscriptionCard(
     isToggling: Boolean,
     onToggle: (Boolean) -> Unit,
     onDelete: () -> Unit,
+    onClick: () -> Unit,
 ) {
     val isEnabled = sub.enabled ?: true
 
     Card(
-        modifier = Modifier.fillMaxWidth(),
+        modifier = Modifier.fillMaxWidth().clickable(onClick = onClick),
         colors =
             CardDefaults.cardColors(
                 containerColor =

app/src/main/res/values/strings.xml

@@ -630,6 +630,31 @@
     <string name="plugins_show_in_sidebar">Show in sidebar</string>
     <string name="plugins_hide_from_sidebar">Hide from sidebar</string>
 
+    <!-- Shared detail dialog (issue #500) -->
+    <string name="detail_dialog_no_info">No additional details available.</string>
+    <string name="detail_dialog_category">Category</string>
+    <string name="detail_dialog_source">Source</string>
+    <string name="detail_dialog_version">Version</string>
+    <string name="detail_dialog_status">Status</string>
+    <string name="detail_dialog_description">Description</string>
+    <string name="detail_dialog_tags">Tags</string>
+    <string name="detail_dialog_transport">Transport</string>
+    <string name="detail_dialog_label">Label</string>
+    <string name="detail_dialog_url">URL</string>
+    <string name="detail_dialog_command">Command</string>
+    <string name="detail_dialog_args">Arguments</string>
+    <string name="detail_dialog_env_vars">Environment Variables</string>
+    <string name="detail_dialog_tools">Tools</string>
+    <string name="detail_dialog_events">Events</string>
+    <string name="detail_dialog_deliver">Deliver to</string>
+    <string name="detail_dialog_prompt">Prompt</string>
+    <string name="detail_dialog_skills">Skills</string>
+    <string name="detail_dialog_created_at">Created</string>
+    <string name="detail_dialog_error">Error</string>
+    <string name="detail_dialog_status_enabled">Enabled</string>
+    <string name="detail_dialog_status_disabled">Disabled</string>
+    <string name="detail_dialog_trust_level">Trust Level</string>
+
     <!-- McpServers Screen -->
     <string name="mcp_servers_label_transport">Transport: %1$s</string>
     <string name="mcp_servers_label_command">Command:</string>