diff --git a/src/components/mika/skills/SkillCard.tsx b/src/components/mika/skills/SkillCard.tsx
index ad44797..1c31def 100644
--- a/src/components/mika/skills/SkillCard.tsx
+++ b/src/components/mika/skills/SkillCard.tsx
@@ -9,6 +9,7 @@ import { ptBR } from "date-fns/locale";
 import { toast } from "sonner";
 import { supabase } from "@/integrations/supabase/client";
 import { syncAgentSkills } from "@/lib/sync-agent-skills";
+import { deleteSkill } from "@/lib/delete-skill";
 import { Button } from "@/components/ui/button";
 import {
   DropdownMenu,
@@ -76,16 +77,37 @@ export function SkillCard({ skill }: { skill: Skill }) {
   };
 
   const handleArchive = () => {
-    updateStatus.mutate("archived", {
-      onSuccess: async () => {
-        toast.success("Skill arquivada");
-        setConfirmArchive(false);
-        await syncRuntimeAfterMutation("Skill arquivada");
-      },
-      onError: (e: unknown) => toast.error(e instanceof Error ? e.message : "Erro ao arquivar"),
-    });
+    handleArchiveMutation.mutate("archive");
   };
 
+  const handleArchiveMutation = useMutation({
+    mutationFn: async (action: "archive" | "delete") => {
+      const { data, error } = await deleteSkill(skill.id, action);
+      if (error) throw new Error(error.message);
+      if (!data?.success) throw new Error("Erro ao atualizar skill.");
+      return data;
+    },
+    onSuccess: (data, action) => {
+      if (data.runtime_sync_warning) {
+        toast.warning(
+          action === "delete"
+            ? "Skill arquivada; exclusão final do runtime pendente."
+            : "Skill arquivada no painel; sync com o runtime pendente.",
+        );
+      } else {
+        toast.success(action === "delete" ? "Skill deletada" : "Skill arquivada");
+      }
+      if (action === "archive") {
+        setConfirmArchive(false);
+      } else {
+        setConfirmDelete(false);
+      }
+      qc.invalidateQueries({ queryKey: ["skills"] });
+      qc.invalidateQueries({ queryKey: ["user-limits"] });
+    },
+    onError: (e: unknown) => toast.error(e instanceof Error ? e.message : "Erro ao atualizar"),
+  });
+
   const handleRestore = () => {
     updateStatus.mutate("draft", {
       onSuccess: async () => {
@@ -104,15 +126,20 @@ export function SkillCard({ skill }: { skill: Skill }) {
 
   const handleDelete = useMutation({
     mutationFn: async () => {
-      const { error } = await supabase.from("skills").delete().eq("id", skill.id);
-      if (error) throw error;
+      const { data, error } = await deleteSkill(skill.id, "delete");
+      if (error) throw new Error(error.message);
+      if (!data?.success) throw new Error("Erro ao deletar skill.");
+      return data;
     },
-    onSuccess: async () => {
-      toast.success("Skill deletada");
+    onSuccess: (data) => {
+      if (data.runtime_sync_warning) {
+        toast.warning("Skill arquivada; exclusão final do runtime pendente.");
+      } else {
+        toast.success("Skill deletada");
+      }
       qc.invalidateQueries({ queryKey: ["skills"] });
       qc.invalidateQueries({ queryKey: ["user-limits"] });
       setConfirmDelete(false);
-      await syncRuntimeAfterMutation("Skill deletada");
     },
     onError: (e: unknown) => toast.error(e instanceof Error ? e.message : "Erro ao deletar"),
   });
diff --git a/src/lib/delete-skill.ts b/src/lib/delete-skill.ts
new file mode 100644
index 0000000..6b59081
--- /dev/null
+++ b/src/lib/delete-skill.ts
@@ -0,0 +1,22 @@
+"use client";
+
+import { invokeFunction } from "@/lib/invoke-function";
+
+export interface DeleteSkillResponse {
+  success: boolean;
+  skill_id: string;
+  agent_instance_id: string;
+  archived: boolean;
+  deleted: boolean;
+  runtime_sync_warning: string | null;
+}
+
+export async function deleteSkill(
+  skillId: string,
+  action: "archive" | "delete" = "archive",
+) {
+  return await invokeFunction<DeleteSkillResponse>("delete-skill", {
+    skill_id: skillId,
+    action,
+  });
+}
diff --git a/src/routes/painel.skills.$id.tsx b/src/routes/painel.skills.$id.tsx
index 3792ea8..aba9258 100644
--- a/src/routes/painel.skills.$id.tsx
+++ b/src/routes/painel.skills.$id.tsx
@@ -12,7 +12,7 @@ import { toast } from "sonner";
 import { supabase } from "@/integrations/supabase/client";
 import { useAuth } from "@/hooks/use-auth";
 import { useSkill } from "@/hooks/use-skills";
-import { syncAgentSkills } from "@/lib/sync-agent-skills";
+import { deleteSkill } from "@/lib/delete-skill";
 import { SkillStatusBadge } from "@/components/mika/skills/SkillStatusBadge";
 import { SkillTestPanel } from "@/components/mika/skills/SkillTestPanel";
 import { Button } from "@/components/ui/button";
@@ -171,25 +171,19 @@ function SkillDetailPage() {
   // Archive
   const archiveSkill = useMutation({
     mutationFn: async () => {
-      const { error } = await supabase
-        .from("skills")
-        .update({ status: "archived", updated_at: new Date().toISOString() })
-        .eq("id", id);
-      if (error) throw error;
+      const { data, error } = await deleteSkill(id, "archive");
+      if (error) throw new Error(error.message);
+      if (!data?.success) throw new Error("Erro ao arquivar skill.");
+      return data;
     },
-    onSuccess: () => {
-      toast.success("Skill arquivada");
+    onSuccess: (data) => {
+      if (data.runtime_sync_warning) {
+        toast.warning("Skill arquivada no painel; sync com o runtime pendente.");
+      } else {
+        toast.success("Skill arquivada");
+      }
       qc.invalidateQueries({ queryKey: ["skills"] });
       qc.invalidateQueries({ queryKey: ["user-limits"] });
-      if (skill.data?.agent_instance_id) {
-        void syncAgentSkills(skill.data.agent_instance_id).then(({ error }) => {
-          if (error) {
-            toast.warning("Skill arquivada, mas o sync com o container falhou.", {
-              description: error.message,
-            });
-          }
-        });
-      }
       navigate({ to: "/painel/skills" });
     },
     onError: (e: unknown) => toast.error(e instanceof Error ? e.message : "Erro"),
diff --git a/supabase/functions/delete-skill/index.ts b/supabase/functions/delete-skill/index.ts
new file mode 100644
index 0000000..6e12fee
--- /dev/null
+++ b/supabase/functions/delete-skill/index.ts
@@ -0,0 +1,180 @@
+// delete-skill (authenticated)
+//
+// Archives or deletes a Mika-managed skill through the server so the runtime is
+// synchronized before the platform removes the source row.
+
+import { createClient } from "https://esm.sh/@supabase/supabase-js@2.57.4";
+import { corsHeaders } from "../_shared/cors.ts";
+import { syncAgentSkillsSnapshot } from "../_shared/runtime-sync.ts";
+
+const SUPABASE_URL = Deno.env.get("SUPABASE_URL")!;
+const SUPABASE_SERVICE_ROLE_KEY = Deno.env.get("SUPABASE_SERVICE_ROLE_KEY")!;
+const SUPABASE_ANON_KEY = Deno.env.get("SUPABASE_ANON_KEY")!;
+const RAILWAY_API_TOKEN = Deno.env.get("RAILWAY_API_TOKEN") ?? "";
+const HERMES_API_SERVER_KEY = Deno.env.get("HERMES_API_SERVER_KEY") ?? "";
+
+type DeleteSkillAction = "archive" | "delete";
+
+interface DeleteSkillBody {
+  skill_id?: string;
+  action?: DeleteSkillAction;
+}
+
+interface SkillForDelete {
+  id: string;
+  user_id: string;
+  agent_instance_id: string;
+  name: string;
+  status: string;
+  is_default: boolean | null;
+}
+
+function jsonResponse(status: number, body: unknown) {
+  return new Response(JSON.stringify(body), {
+    status,
+    headers: { ...corsHeaders, "Content-Type": "application/json" },
+  });
+}
+
+function errorMessage(error: unknown): string {
+  return error instanceof Error ? error.message : String(error);
+}
+
+function isValidAction(action: unknown): action is DeleteSkillAction {
+  return action === "archive" || action === "delete";
+}
+
+async function syncSkills(
+  // deno-lint-ignore no-explicit-any
+  admin: any,
+  agentInstanceId: string,
+) {
+  return await syncAgentSkillsSnapshot({
+    supabase: admin,
+    agentInstanceId,
+    railwayToken: RAILWAY_API_TOKEN,
+    apiKey: HERMES_API_SERVER_KEY,
+  });
+}
+
+Deno.serve(async (req) => {
+  if (req.method === "OPTIONS") {
+    return new Response(null, { headers: corsHeaders });
+  }
+
+  if (req.method !== "POST") {
+    return jsonResponse(405, { error: "method not allowed" });
+  }
+
+  const authHeader = req.headers.get("Authorization") ?? "";
+  const jwt = authHeader.replace(/^Bearer\s+/i, "");
+  if (!jwt) {
+    return jsonResponse(401, { error: "missing authorization" });
+  }
+
+  let body: DeleteSkillBody;
+  try {
+    body = await req.json() as DeleteSkillBody;
+  } catch {
+    return jsonResponse(400, { error: "invalid json body" });
+  }
+
+  if (!body.skill_id) {
+    return jsonResponse(400, { error: "skill_id required" });
+  }
+
+  const action = body.action ?? "archive";
+  if (!isValidAction(action)) {
+    return jsonResponse(400, { error: "invalid action" });
+  }
+
+  const userClient = createClient(SUPABASE_URL, SUPABASE_ANON_KEY, {
+    global: { headers: { Authorization: `Bearer ${jwt}` } },
+    auth: { persistSession: false, autoRefreshToken: false },
+  });
+
+  const { data: userData, error: userErr } = await userClient.auth.getUser();
+  if (userErr || !userData?.user) {
+    return jsonResponse(401, { error: "invalid token" });
+  }
+
+  const admin = createClient(SUPABASE_URL, SUPABASE_SERVICE_ROLE_KEY, {
+    auth: { persistSession: false, autoRefreshToken: false },
+  });
+
+  const { data: skillData, error: skillErr } = await admin
+    .from("skills")
+    .select("id, user_id, agent_instance_id, name, status, is_default")
+    .eq("id", body.skill_id)
+    .maybeSingle();
+
+  if (skillErr) {
+    return jsonResponse(500, { error: "failed to load skill", detail: skillErr.message });
+  }
+  if (!skillData) {
+    return jsonResponse(404, { error: "skill not found" });
+  }
+
+  const skill = skillData as SkillForDelete;
+  const { data: isAdmin, error: roleErr } = await admin.rpc("has_role", {
+    _user_id: userData.user.id,
+    _role: "admin",
+  });
+  if (roleErr) {
+    return jsonResponse(500, { error: "failed to resolve role" });
+  }
+
+  if (skill.user_id !== userData.user.id && !isAdmin) {
+    return jsonResponse(403, { error: "forbidden" });
+  }
+
+  if (skill.is_default) {
+    return jsonResponse(403, { error: "default skills cannot be archived or deleted" });
+  }
+
+  if (skill.status !== "archived") {
+    const { error: archiveErr } = await admin
+      .from("skills")
+      .update({
+        status: "archived",
+        updated_at: new Date().toISOString(),
+      })
+      .eq("id", skill.id);
+
+    if (archiveErr) {
+      return jsonResponse(500, { error: "failed to archive skill", detail: archiveErr.message });
+    }
+  }
+
+  let runtimeSyncWarning: string | null = null;
+  try {
+    await syncSkills(admin, skill.agent_instance_id);
+  } catch (err) {
+    runtimeSyncWarning = errorMessage(err);
+    console.error("delete-skill runtime sync warning:", runtimeSyncWarning);
+  }
+
+  let deleted = false;
+  if (action === "delete" && !runtimeSyncWarning) {
+    const { error: deleteErr } = await admin
+      .from("skills")
+      .delete()
+      .eq("id", skill.id);
+
+    if (deleteErr) {
+      runtimeSyncWarning = `DB delete failed after archive sync: ${deleteErr.message}`;
+      console.error("delete-skill hard delete warning:", runtimeSyncWarning);
+    } else {
+      deleted = true;
+    }
+  }
+
+  return jsonResponse(200, {
+    success: true,
+    skill_id: skill.id,
+    agent_instance_id: skill.agent_instance_id,
+    archived: true,
+    deleted,
+    runtime_sync_warning: runtimeSyncWarning,
+  });
+});