diff --git a/packages/client/src/generated/types.ts b/packages/client/src/generated/types.ts
index 8871d5bf5b..72796c3c34 100644
--- a/packages/client/src/generated/types.ts
+++ b/packages/client/src/generated/types.ts
@@ -2758,7 +2758,6 @@ export type CommandListOutput = {
     readonly description?: string
     readonly agent?: string
     readonly model?: { readonly id: string; readonly providerID: string; readonly variant?: string }
-    readonly source?: "command" | "mcp" | "skill"
     readonly subtask?: boolean
   }>
 }
diff --git a/packages/core/src/config/plugin/command.ts b/packages/core/src/config/plugin/command.ts
index 56e3169cd2..f9b31f8e45 100644
--- a/packages/core/src/config/plugin/command.ts
+++ b/packages/core/src/config/plugin/command.ts
@@ -31,7 +31,6 @@ export const Plugin = define({
           for (const [name, command] of Object.entries(document.commands ?? {})) {
             draft.update(name, (item) => {
               item.template = command.template
-              item.source = "command"
               if (command.description !== undefined) item.description = command.description
               if (command.agent !== undefined) item.agent = command.agent
               if (command.model !== undefined) {
diff --git a/packages/core/src/plugin/command.ts b/packages/core/src/plugin/command.ts
index 6b02591aa3..cbafd68b50 100644
--- a/packages/core/src/plugin/command.ts
+++ b/packages/core/src/plugin/command.ts
@@ -14,12 +14,10 @@ export const Plugin = define({
       draft.update("init", (command) => {
         command.template = PROMPT_INITIALIZE.replace("${path}", location.project.directory)
         command.description = "guided AGENTS.md setup"
-        command.source = "command"
       })
       draft.update("review", (command) => {
         command.template = PROMPT_REVIEW.replace("${path}", location.project.directory)
         command.description = "review changes [commit|branch|pr], defaults to uncommitted"
-        command.source = "command"
         command.subtask = true
       })
     })
diff --git a/packages/core/src/plugin/mcp-command.ts b/packages/core/src/plugin/mcp-command.ts
index 344c6e4a2a..8e81ee3baf 100644
--- a/packages/core/src/plugin/mcp-command.ts
+++ b/packages/core/src/plugin/mcp-command.ts
@@ -34,7 +34,6 @@ export const Plugin = define({
           if (!template || draft.get(command.name)) continue
           draft.update(command.name, (item) => {
             item.template = template
-            item.source = "mcp"
             if (command.description !== undefined) item.description = command.description
           })
         }
diff --git a/packages/schema/src/command.ts b/packages/schema/src/command.ts
index d689cc7a5b..2bdf3a95c5 100644
--- a/packages/schema/src/command.ts
+++ b/packages/schema/src/command.ts
@@ -11,6 +11,5 @@ export const Info = Schema.Struct({
   description: Schema.String.pipe(optional),
   agent: Schema.String.pipe(optional),
   model: Model.Ref.pipe(optional),
-  source: Schema.Literals(["command", "mcp", "skill"]).pipe(optional),
   subtask: Schema.Boolean.pipe(optional),
 }).annotate({ identifier: "CommandV2.Info" })
diff --git a/packages/sdk/js/src/v2/gen/types.gen.ts b/packages/sdk/js/src/v2/gen/types.gen.ts
index bf368f9e6b..4788320adc 100644
--- a/packages/sdk/js/src/v2/gen/types.gen.ts
+++ b/packages/sdk/js/src/v2/gen/types.gen.ts
@@ -5335,7 +5335,6 @@ export type CommandV2Info = {
   description?: string
   agent?: string
   model?: ModelRef
-  source?: "command" | "mcp" | "skill"
   subtask?: boolean
 }