diff --git a/src/graphql/data/fpt/changelog.json b/src/graphql/data/fpt/changelog.json
index 0aea7cdd403e..bc8c2ad61be8 100644
--- a/src/graphql/data/fpt/changelog.json
+++ b/src/graphql/data/fpt/changelog.json
@@ -1,4 +1,25 @@
 [
+  {
+    "schemaChanges": [
+      {
+        "title": "The GraphQL schema includes these changes:",
+        "changes": [
+          "<p>Type <code>AgentAssignmentInput</code> was added</p>",
+          "<p>Input field <code>baseRef</code> of type <code>String</code> was added to input object type <code>AgentAssignmentInput</code></p>",
+          "<p>Input field <code>customAgent</code> of type <code>String</code> was added to input object type <code>AgentAssignmentInput</code></p>",
+          "<p>Input field <code>customInstructions</code> of type <code>String</code> was added to input object type <code>AgentAssignmentInput</code></p>",
+          "<p>Input field <code>targetRepositoryId</code> of type <code>ID</code> was added to input object type <code>AgentAssignmentInput</code></p>",
+          "<p>Input field <code>agentAssignment</code> of type <code>AgentAssignmentInput</code> was added to input object type <code>AddAssigneesToAssignableInput</code></p>",
+          "<p>Input field <code>agentAssignment</code> of type <code>AgentAssignmentInput</code> was added to input object type <code>CreateIssueInput</code></p>",
+          "<p>Input field <code>agentAssignment</code> of type <code>AgentAssignmentInput</code> was added to input object type <code>ReplaceActorsForAssignableInput</code></p>",
+          "<p>Input field <code>agentAssignment</code> of type <code>AgentAssignmentInput</code> was added to input object type <code>UpdateIssueInput</code></p>"
+        ]
+      }
+    ],
+    "previewChanges": [],
+    "upcomingChanges": [],
+    "date": "2026-02-07"
+  },
   {
     "schemaChanges": [
       {
diff --git a/src/graphql/data/fpt/schema.docs.graphql b/src/graphql/data/fpt/schema.docs.graphql
index 56c7ce992f72..ef8fbeeede32 100644
--- a/src/graphql/data/fpt/schema.docs.graphql
+++ b/src/graphql/data/fpt/schema.docs.graphql
@@ -355,6 +355,11 @@ enum ActorType {
 Autogenerated input type of AddAssigneesToAssignable
 """
 input AddAssigneesToAssignableInput {
+  """
+  Configuration for assigning Copilot to this issue.
+  """
+  agentAssignment: AgentAssignmentInput
+
   """
   The id of the assignable object to add assignees to.
   """
@@ -1418,6 +1423,31 @@ type AddedToProjectV2Event implements Node & ProjectV2Event {
   wasAutomated: Boolean!
 }
 
+"""
+Represents configuration for assigning Copilot to an issue (public variant)
+"""
+input AgentAssignmentInput {
+  """
+  The base ref/branch for the repository. Defaults to the default branch if not provided.
+  """
+  baseRef: String
+
+  """
+  Custom agent for Copilot.
+  """
+  customAgent: String
+
+  """
+  Custom instructions for Copilot.
+  """
+  customInstructions: String
+
+  """
+  The Node ID of the target repository where Copilot should work. Defaults to the issue's repository if not provided.
+  """
+  targetRepositoryId: ID @possibleTypes(concreteTypes: ["Repository"])
+}
+
 """
 Copilot Agentic fields in context of the current viewer.
 """
@@ -8139,6 +8169,11 @@ type CreateIpAllowListEntryPayload {
 Autogenerated input type of CreateIssue
 """
 input CreateIssueInput {
+  """
+  Configuration for assigning Copilot to this issue.
+  """
+  agentAssignment: AgentAssignmentInput
+
   """
   The Node ID of assignees for this issue.
   """
@@ -46681,6 +46716,11 @@ input ReplaceActorsForAssignableInput {
   """
   actorLogins: [String!]
 
+  """
+  Configuration for assigning an AI agent to this issue.
+  """
+  agentAssignment: AgentAssignmentInput
+
   """
   The id of the assignable object to replace the assignees for.
   """
@@ -65414,6 +65454,11 @@ type UpdateIssueCommentPayload {
 Autogenerated input type of UpdateIssue
 """
 input UpdateIssueInput {
+  """
+  Configuration for assigning an AI agent to this issue.
+  """
+  agentAssignment: AgentAssignmentInput
+
   """
   An array of Node IDs of users or bots for this issue.
   """
diff --git a/src/graphql/data/fpt/schema.json b/src/graphql/data/fpt/schema.json
index 223d096c68bf..8f057ec3559a 100644
--- a/src/graphql/data/fpt/schema.json
+++ b/src/graphql/data/fpt/schema.json
@@ -97653,6 +97653,14 @@
       "href": "/graphql/reference/input-objects#addassigneestoassignableinput",
       "description": "<p>Autogenerated input type of AddAssigneesToAssignable.</p>",
       "inputFields": [
+        {
+          "name": "agentAssignment",
+          "description": "<p>Configuration for assigning Copilot to this issue.</p>",
+          "type": "AgentAssignmentInput",
+          "id": "agentassignmentinput",
+          "kind": "input-objects",
+          "href": "/graphql/reference/input-objects#agentassignmentinput"
+        },
         {
           "name": "assignableId",
           "description": "<p>The id of the assignable object to add assignees to.</p>",
@@ -98549,6 +98557,48 @@
         }
       ]
     },
+    {
+      "name": "AgentAssignmentInput",
+      "kind": "inputObjects",
+      "id": "agentassignmentinput",
+      "href": "/graphql/reference/input-objects#agentassignmentinput",
+      "description": "<p>Represents configuration for assigning Copilot to an issue (public variant).</p>",
+      "inputFields": [
+        {
+          "name": "baseRef",
+          "description": "<p>The base ref/branch for the repository. Defaults to the default branch if not provided.</p>",
+          "type": "String",
+          "id": "string",
+          "kind": "scalars",
+          "href": "/graphql/reference/scalars#string"
+        },
+        {
+          "name": "customAgent",
+          "description": "<p>Custom agent for Copilot.</p>",
+          "type": "String",
+          "id": "string",
+          "kind": "scalars",
+          "href": "/graphql/reference/scalars#string"
+        },
+        {
+          "name": "customInstructions",
+          "description": "<p>Custom instructions for Copilot.</p>",
+          "type": "String",
+          "id": "string",
+          "kind": "scalars",
+          "href": "/graphql/reference/scalars#string"
+        },
+        {
+          "name": "targetRepositoryId",
+          "description": "<p>The Node ID of the target repository where Copilot should work. Defaults to the issue's repository if not provided.</p>",
+          "type": "ID",
+          "id": "id",
+          "kind": "scalars",
+          "href": "/graphql/reference/scalars#id",
+          "isDeprecated": false
+        }
+      ]
+    },
     {
       "name": "ApproveDeploymentsInput",
       "kind": "inputObjects",
@@ -100884,6 +100934,14 @@
       "href": "/graphql/reference/input-objects#createissueinput",
       "description": "<p>Autogenerated input type of CreateIssue.</p>",
       "inputFields": [
+        {
+          "name": "agentAssignment",
+          "description": "<p>Configuration for assigning Copilot to this issue.</p>",
+          "type": "AgentAssignmentInput",
+          "id": "agentassignmentinput",
+          "kind": "input-objects",
+          "href": "/graphql/reference/input-objects#agentassignmentinput"
+        },
         {
           "name": "assigneeIds",
           "description": "<p>The Node ID of assignees for this issue.</p>",
@@ -106572,6 +106630,14 @@
           "kind": "scalars",
           "href": "/graphql/reference/scalars#string"
         },
+        {
+          "name": "agentAssignment",
+          "description": "<p>Configuration for assigning an AI agent to this issue.</p>",
+          "type": "AgentAssignmentInput",
+          "id": "agentassignmentinput",
+          "kind": "input-objects",
+          "href": "/graphql/reference/input-objects#agentassignmentinput"
+        },
         {
           "name": "assignableId",
           "description": "<p>The id of the assignable object to replace the assignees for.</p>",
@@ -110360,6 +110426,14 @@
       "href": "/graphql/reference/input-objects#updateissueinput",
       "description": "<p>Autogenerated input type of UpdateIssue.</p>",
       "inputFields": [
+        {
+          "name": "agentAssignment",
+          "description": "<p>Configuration for assigning an AI agent to this issue.</p>",
+          "type": "AgentAssignmentInput",
+          "id": "agentassignmentinput",
+          "kind": "input-objects",
+          "href": "/graphql/reference/input-objects#agentassignmentinput"
+        },
         {
           "name": "assigneeIds",
           "description": "<p>An array of Node IDs of users or bots for this issue.</p>",
diff --git a/src/graphql/data/ghec/schema.docs.graphql b/src/graphql/data/ghec/schema.docs.graphql
index 56c7ce992f72..ef8fbeeede32 100644
--- a/src/graphql/data/ghec/schema.docs.graphql
+++ b/src/graphql/data/ghec/schema.docs.graphql
@@ -355,6 +355,11 @@ enum ActorType {
 Autogenerated input type of AddAssigneesToAssignable
 """
 input AddAssigneesToAssignableInput {
+  """
+  Configuration for assigning Copilot to this issue.
+  """
+  agentAssignment: AgentAssignmentInput
+
   """
   The id of the assignable object to add assignees to.
   """
@@ -1418,6 +1423,31 @@ type AddedToProjectV2Event implements Node & ProjectV2Event {
   wasAutomated: Boolean!
 }
 
+"""
+Represents configuration for assigning Copilot to an issue (public variant)
+"""
+input AgentAssignmentInput {
+  """
+  The base ref/branch for the repository. Defaults to the default branch if not provided.
+  """
+  baseRef: String
+
+  """
+  Custom agent for Copilot.
+  """
+  customAgent: String
+
+  """
+  Custom instructions for Copilot.
+  """
+  customInstructions: String
+
+  """
+  The Node ID of the target repository where Copilot should work. Defaults to the issue's repository if not provided.
+  """
+  targetRepositoryId: ID @possibleTypes(concreteTypes: ["Repository"])
+}
+
 """
 Copilot Agentic fields in context of the current viewer.
 """
@@ -8139,6 +8169,11 @@ type CreateIpAllowListEntryPayload {
 Autogenerated input type of CreateIssue
 """
 input CreateIssueInput {
+  """
+  Configuration for assigning Copilot to this issue.
+  """
+  agentAssignment: AgentAssignmentInput
+
   """
   The Node ID of assignees for this issue.
   """
@@ -46681,6 +46716,11 @@ input ReplaceActorsForAssignableInput {
   """
   actorLogins: [String!]
 
+  """
+  Configuration for assigning an AI agent to this issue.
+  """
+  agentAssignment: AgentAssignmentInput
+
   """
   The id of the assignable object to replace the assignees for.
   """
@@ -65414,6 +65454,11 @@ type UpdateIssueCommentPayload {
 Autogenerated input type of UpdateIssue
 """
 input UpdateIssueInput {
+  """
+  Configuration for assigning an AI agent to this issue.
+  """
+  agentAssignment: AgentAssignmentInput
+
   """
   An array of Node IDs of users or bots for this issue.
   """
diff --git a/src/graphql/data/ghec/schema.json b/src/graphql/data/ghec/schema.json
index 223d096c68bf..8f057ec3559a 100644
--- a/src/graphql/data/ghec/schema.json
+++ b/src/graphql/data/ghec/schema.json
@@ -97653,6 +97653,14 @@
       "href": "/graphql/reference/input-objects#addassigneestoassignableinput",
       "description": "<p>Autogenerated input type of AddAssigneesToAssignable.</p>",
       "inputFields": [
+        {
+          "name": "agentAssignment",
+          "description": "<p>Configuration for assigning Copilot to this issue.</p>",
+          "type": "AgentAssignmentInput",
+          "id": "agentassignmentinput",
+          "kind": "input-objects",
+          "href": "/graphql/reference/input-objects#agentassignmentinput"
+        },
         {
           "name": "assignableId",
           "description": "<p>The id of the assignable object to add assignees to.</p>",
@@ -98549,6 +98557,48 @@
         }
       ]
     },
+    {
+      "name": "AgentAssignmentInput",
+      "kind": "inputObjects",
+      "id": "agentassignmentinput",
+      "href": "/graphql/reference/input-objects#agentassignmentinput",
+      "description": "<p>Represents configuration for assigning Copilot to an issue (public variant).</p>",
+      "inputFields": [
+        {
+          "name": "baseRef",
+          "description": "<p>The base ref/branch for the repository. Defaults to the default branch if not provided.</p>",
+          "type": "String",
+          "id": "string",
+          "kind": "scalars",
+          "href": "/graphql/reference/scalars#string"
+        },
+        {
+          "name": "customAgent",
+          "description": "<p>Custom agent for Copilot.</p>",
+          "type": "String",
+          "id": "string",
+          "kind": "scalars",
+          "href": "/graphql/reference/scalars#string"
+        },
+        {
+          "name": "customInstructions",
+          "description": "<p>Custom instructions for Copilot.</p>",
+          "type": "String",
+          "id": "string",
+          "kind": "scalars",
+          "href": "/graphql/reference/scalars#string"
+        },
+        {
+          "name": "targetRepositoryId",
+          "description": "<p>The Node ID of the target repository where Copilot should work. Defaults to the issue's repository if not provided.</p>",
+          "type": "ID",
+          "id": "id",
+          "kind": "scalars",
+          "href": "/graphql/reference/scalars#id",
+          "isDeprecated": false
+        }
+      ]
+    },
     {
       "name": "ApproveDeploymentsInput",
       "kind": "inputObjects",
@@ -100884,6 +100934,14 @@
       "href": "/graphql/reference/input-objects#createissueinput",
       "description": "<p>Autogenerated input type of CreateIssue.</p>",
       "inputFields": [
+        {
+          "name": "agentAssignment",
+          "description": "<p>Configuration for assigning Copilot to this issue.</p>",
+          "type": "AgentAssignmentInput",
+          "id": "agentassignmentinput",
+          "kind": "input-objects",
+          "href": "/graphql/reference/input-objects#agentassignmentinput"
+        },
         {
           "name": "assigneeIds",
           "description": "<p>The Node ID of assignees for this issue.</p>",
@@ -106572,6 +106630,14 @@
           "kind": "scalars",
           "href": "/graphql/reference/scalars#string"
         },
+        {
+          "name": "agentAssignment",
+          "description": "<p>Configuration for assigning an AI agent to this issue.</p>",
+          "type": "AgentAssignmentInput",
+          "id": "agentassignmentinput",
+          "kind": "input-objects",
+          "href": "/graphql/reference/input-objects#agentassignmentinput"
+        },
         {
           "name": "assignableId",
           "description": "<p>The id of the assignable object to replace the assignees for.</p>",
@@ -110360,6 +110426,14 @@
       "href": "/graphql/reference/input-objects#updateissueinput",
       "description": "<p>Autogenerated input type of UpdateIssue.</p>",
       "inputFields": [
+        {
+          "name": "agentAssignment",
+          "description": "<p>Configuration for assigning an AI agent to this issue.</p>",
+          "type": "AgentAssignmentInput",
+          "id": "agentassignmentinput",
+          "kind": "input-objects",
+          "href": "/graphql/reference/input-objects#agentassignmentinput"
+        },
         {
           "name": "assigneeIds",
           "description": "<p>An array of Node IDs of users or bots for this issue.</p>",