diff --git a/.github/workflows/campaign-manager.lock.yml b/.github/workflows/campaign-manager.lock.yml
index 2931b1c16d..fee2ef8661 100644
--- a/.github/workflows/campaign-manager.lock.yml
+++ b/.github/workflows/campaign-manager.lock.yml
@@ -327,35 +327,6 @@ jobs:
               "description": "Add or update items in GitHub Projects v2 boards. Can add issues/PRs to a project and update custom field values. Requires the project URL, content type (issue or pull_request), and content number. Use campaign_id to group related items.",
               "inputSchema": {
                 "additionalProperties": false,
-                "oneOf": [
-                  {
-                    "properties": {
-                      "content_type": {
-                        "enum": [
-                          "issue",
-                          "pull_request"
-                        ]
-                      }
-                    },
-                    "required": [
-                      "project",
-                      "content_type",
-                      "content_number"
-                    ]
-                  },
-                  {
-                    "properties": {
-                      "content_type": {
-                        "const": "draft_issue"
-                      }
-                    },
-                    "required": [
-                      "project",
-                      "content_type",
-                      "draft_title"
-                    ]
-                  }
-                ],
                 "properties": {
                   "campaign_id": {
                     "description": "Campaign identifier to group related project items. Used to track items created by the same campaign or workflow run.",
@@ -396,6 +367,10 @@ jobs:
                     "type": "string"
                   }
                 },
+                "required": [
+                  "project",
+                  "content_type"
+                ],
                 "type": "object"
               },
               "name": "update_project"
diff --git a/.github/workflows/go-file-size-reduction-project64.campaign.g.lock.yml b/.github/workflows/go-file-size-reduction-project64.campaign.g.lock.yml
index c10bc7726e..9278840d0e 100644
--- a/.github/workflows/go-file-size-reduction-project64.campaign.g.lock.yml
+++ b/.github/workflows/go-file-size-reduction-project64.campaign.g.lock.yml
@@ -278,35 +278,6 @@ jobs:
               "description": "Add or update items in GitHub Projects v2 boards. Can add issues/PRs to a project and update custom field values. Requires the project URL, content type (issue or pull_request), and content number. Use campaign_id to group related items.",
               "inputSchema": {
                 "additionalProperties": false,
-                "oneOf": [
-                  {
-                    "properties": {
-                      "content_type": {
-                        "enum": [
-                          "issue",
-                          "pull_request"
-                        ]
-                      }
-                    },
-                    "required": [
-                      "project",
-                      "content_type",
-                      "content_number"
-                    ]
-                  },
-                  {
-                    "properties": {
-                      "content_type": {
-                        "const": "draft_issue"
-                      }
-                    },
-                    "required": [
-                      "project",
-                      "content_type",
-                      "draft_title"
-                    ]
-                  }
-                ],
                 "properties": {
                   "campaign_id": {
                     "description": "Campaign identifier to group related project items. Used to track items created by the same campaign or workflow run.",
@@ -347,6 +318,10 @@ jobs:
                     "type": "string"
                   }
                 },
+                "required": [
+                  "project",
+                  "content_type"
+                ],
                 "type": "object"
               },
               "name": "update_project"
diff --git a/.github/workflows/playground-org-project-update-issue.lock.yml b/.github/workflows/playground-org-project-update-issue.lock.yml
index 23c32598dd..4d7baf3ee2 100644
--- a/.github/workflows/playground-org-project-update-issue.lock.yml
+++ b/.github/workflows/playground-org-project-update-issue.lock.yml
@@ -253,35 +253,6 @@ jobs:
               "description": "Add or update items in GitHub Projects v2 boards. Can add issues/PRs to a project and update custom field values. Requires the project URL, content type (issue or pull_request), and content number. Use campaign_id to group related items.",
               "inputSchema": {
                 "additionalProperties": false,
-                "oneOf": [
-                  {
-                    "properties": {
-                      "content_type": {
-                        "enum": [
-                          "issue",
-                          "pull_request"
-                        ]
-                      }
-                    },
-                    "required": [
-                      "project",
-                      "content_type",
-                      "content_number"
-                    ]
-                  },
-                  {
-                    "properties": {
-                      "content_type": {
-                        "const": "draft_issue"
-                      }
-                    },
-                    "required": [
-                      "project",
-                      "content_type",
-                      "draft_title"
-                    ]
-                  }
-                ],
                 "properties": {
                   "campaign_id": {
                     "description": "Campaign identifier to group related project items. Used to track items created by the same campaign or workflow run.",
@@ -322,6 +293,10 @@ jobs:
                     "type": "string"
                   }
                 },
+                "required": [
+                  "project",
+                  "content_type"
+                ],
                 "type": "object"
               },
               "name": "update_project"
diff --git a/pkg/workflow/js/safe_outputs_tools.json b/pkg/workflow/js/safe_outputs_tools.json
index a14e27adfd..d0ec9ffcd6 100644
--- a/pkg/workflow/js/safe_outputs_tools.json
+++ b/pkg/workflow/js/safe_outputs_tools.json
@@ -578,6 +578,7 @@
     "description": "Add or update items in GitHub Projects v2 boards. Can add issues/PRs to a project and update custom field values. Requires the project URL, content type (issue or pull_request), and content number. Use campaign_id to group related items.",
     "inputSchema": {
       "type": "object",
+      "required": ["project", "content_type"],
       "properties": {
         "project": {
           "type": "string",
@@ -614,20 +615,6 @@
           "description": "Whether to create the project if it doesn't exist. Defaults to false. Requires projects:write permission when true."
         }
       },
-      "oneOf": [
-        {
-          "required": ["project", "content_type", "content_number"],
-          "properties": {
-            "content_type": { "enum": ["issue", "pull_request"] }
-          }
-        },
-        {
-          "required": ["project", "content_type", "draft_title"],
-          "properties": {
-            "content_type": { "const": "draft_issue" }
-          }
-        }
-      ],
       "additionalProperties": false
     }
   }