diff --git a/src/plugin-handlers/config-handler.ts b/src/plugin-handlers/config-handler.ts
index 4f1e3d17b..629c61ef2 100644
--- a/src/plugin-handlers/config-handler.ts
+++ b/src/plugin-handlers/config-handler.ts
@@ -186,19 +186,19 @@ export function createConfigHandler(deps: ConfigHandlerDeps) {
       explore?: { tools?: Record<string, unknown> };
       librarian?: { tools?: Record<string, unknown> };
       "multimodal-looker"?: { tools?: Record<string, unknown> };
-      Atlas?: { tools?: Record<string, unknown> };
-      Sisyphus?: { tools?: Record<string, unknown> };
+      atlas?: { tools?: Record<string, unknown> };
+      sisyphus?: { tools?: Record<string, unknown> };
     };
     const configAgent = config.agent as AgentConfig | undefined;
 
-    if (isSisyphusEnabled && builtinAgents.Sisyphus) {
-      (config as { default_agent?: string }).default_agent = "Sisyphus";
+    if (isSisyphusEnabled && builtinAgents.sisyphus) {
+      (config as { default_agent?: string }).default_agent = "sisyphus";
 
       const agentConfig: Record<string, unknown> = {
-        Sisyphus: builtinAgents.Sisyphus,
+        sisyphus: builtinAgents.sisyphus,
       };
 
-      agentConfig["Sisyphus-Junior"] = createSisyphusJuniorAgentWithOverrides(
+      agentConfig["sisyphus-junior"] = createSisyphusJuniorAgentWithOverrides(
         pluginConfig.agents?.["sisyphus-junior"],
         config.model as string | undefined
       );
@@ -275,7 +275,7 @@ export function createConfigHandler(deps: ConfigHandlerDeps) {
             : {}),
         };
 
-        agentConfig["Prometheus (Planner)"] = prometheusOverride
+        agentConfig["prometheus"] = prometheusOverride
           ? { ...prometheusBase, ...prometheusOverride }
           : prometheusBase;
       }
@@ -310,7 +310,7 @@ export function createConfigHandler(deps: ConfigHandlerDeps) {
       config.agent = {
         ...agentConfig,
         ...Object.fromEntries(
-          Object.entries(builtinAgents).filter(([k]) => k !== "Sisyphus")
+          Object.entries(builtinAgents).filter(([k]) => k !== "sisyphus")
         ),
         ...userAgents,
         ...projectAgents,
@@ -349,20 +349,20 @@ export function createConfigHandler(deps: ConfigHandlerDeps) {
       const agent = agentResult["multimodal-looker"] as AgentWithPermission;
       agent.permission = { ...agent.permission, task: "deny", look_at: "deny" };
     }
-    if (agentResult["Atlas"]) {
-      const agent = agentResult["Atlas"] as AgentWithPermission;
+    if (agentResult["atlas"]) {
+      const agent = agentResult["atlas"] as AgentWithPermission;
       agent.permission = { ...agent.permission, task: "deny", call_omo_agent: "deny", delegate_task: "allow" };
     }
-    if (agentResult.Sisyphus) {
-      const agent = agentResult.Sisyphus as AgentWithPermission;
+    if (agentResult.sisyphus) {
+      const agent = agentResult.sisyphus as AgentWithPermission;
       agent.permission = { ...agent.permission, call_omo_agent: "deny", delegate_task: "allow", question: "allow" };
     }
-    if (agentResult["Prometheus (Planner)"]) {
-      const agent = agentResult["Prometheus (Planner)"] as AgentWithPermission;
+    if (agentResult["prometheus"]) {
+      const agent = agentResult["prometheus"] as AgentWithPermission;
       agent.permission = { ...agent.permission, call_omo_agent: "deny", delegate_task: "allow", question: "allow" };
     }
-    if (agentResult["Sisyphus-Junior"]) {
-      const agent = agentResult["Sisyphus-Junior"] as AgentWithPermission;
+    if (agentResult["sisyphus-junior"]) {
+      const agent = agentResult["sisyphus-junior"] as AgentWithPermission;
       agent.permission = { ...agent.permission, delegate_task: "allow" };
     }