diff --git a/docs/genaisrc/genaiscript.d.ts b/docs/genaisrc/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/docs/genaisrc/genaiscript.d.ts
+++ b/docs/genaisrc/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/genaisrc/genaiscript.d.ts b/genaisrc/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/genaisrc/genaiscript.d.ts
+++ b/genaisrc/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/auto/genaiscript.d.ts b/packages/auto/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/packages/auto/genaiscript.d.ts
+++ b/packages/auto/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/core/src/genaisrc/genaiscript.d.ts b/packages/core/src/genaisrc/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/packages/core/src/genaisrc/genaiscript.d.ts
+++ b/packages/core/src/genaisrc/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/core/src/genaisrc/system.agent_fs.genai.mjs b/packages/core/src/genaisrc/system.agent_fs.genai.mjs
index eb8bfc2e6b..f1d8307964 100644
--- a/packages/core/src/genaisrc/system.agent_fs.genai.mjs
+++ b/packages/core/src/genaisrc/system.agent_fs.genai.mjs
@@ -1,11 +1,5 @@
 system({
     title: "Agent that can find, search or read files to accomplish tasks",
-    parameters: {
-        agentFsModel: {
-            type: "string",
-            description: "Model to use for the agent",
-        },
-    },
 })
 
 const model = env.vars.agentFsModel
diff --git a/packages/core/src/genaisrc/system.agent_git.genai.mjs b/packages/core/src/genaisrc/system.agent_git.genai.mjs
index a9c1a67691..16c9753303 100644
--- a/packages/core/src/genaisrc/system.agent_git.genai.mjs
+++ b/packages/core/src/genaisrc/system.agent_git.genai.mjs
@@ -1,11 +1,5 @@
 system({
     title: "Agent that can query Git to accomplish tasks.",
-    parameters: {
-        agentGitModel: {
-            type: "string",
-            description: "Model to use for the agent",
-        },
-    },
 })
 
 const model = env.vars.agentGitModel
diff --git a/packages/core/src/genaisrc/system.agent_github.genai.mjs b/packages/core/src/genaisrc/system.agent_github.genai.mjs
index 740f9e7e5f..6269d8827a 100644
--- a/packages/core/src/genaisrc/system.agent_github.genai.mjs
+++ b/packages/core/src/genaisrc/system.agent_github.genai.mjs
@@ -1,11 +1,5 @@
 system({
     title: "Agent that can query GitHub to accomplish tasks.",
-    parameters: {
-        agentGithubModel: {
-            type: "string",
-            description: "Model to use for the agent",
-        },
-    },
 })
 
 const model = env.vars.agentGithubModel
diff --git a/packages/core/src/types/prompt_template.d.ts b/packages/core/src/types/prompt_template.d.ts
index 326ea654d0..77bce43498 100644
--- a/packages/core/src/types/prompt_template.d.ts
+++ b/packages/core/src/types/prompt_template.d.ts
@@ -699,6 +699,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/sample/genaisrc/blog/genaiscript.d.ts b/packages/sample/genaisrc/blog/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/packages/sample/genaisrc/blog/genaiscript.d.ts
+++ b/packages/sample/genaisrc/blog/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/sample/genaisrc/genaiscript.d.ts b/packages/sample/genaisrc/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/packages/sample/genaisrc/genaiscript.d.ts
+++ b/packages/sample/genaisrc/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/sample/genaisrc/node/genaiscript.d.ts b/packages/sample/genaisrc/node/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/packages/sample/genaisrc/node/genaiscript.d.ts
+++ b/packages/sample/genaisrc/node/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/sample/genaisrc/python/genaiscript.d.ts b/packages/sample/genaisrc/python/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/packages/sample/genaisrc/python/genaiscript.d.ts
+++ b/packages/sample/genaisrc/python/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/sample/genaisrc/style/genaiscript.d.ts b/packages/sample/genaisrc/style/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/packages/sample/genaisrc/style/genaiscript.d.ts
+++ b/packages/sample/genaisrc/style/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/sample/src/aici/genaiscript.d.ts b/packages/sample/src/aici/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/packages/sample/src/aici/genaiscript.d.ts
+++ b/packages/sample/src/aici/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/sample/src/errors/genaiscript.d.ts b/packages/sample/src/errors/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/packages/sample/src/errors/genaiscript.d.ts
+++ b/packages/sample/src/errors/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/sample/src/genaiscript.d.ts b/packages/sample/src/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/packages/sample/src/genaiscript.d.ts
+++ b/packages/sample/src/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/sample/src/makecode/genaiscript.d.ts b/packages/sample/src/makecode/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/packages/sample/src/makecode/genaiscript.d.ts
+++ b/packages/sample/src/makecode/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/sample/src/tla/genaiscript.d.ts b/packages/sample/src/tla/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/packages/sample/src/tla/genaiscript.d.ts
+++ b/packages/sample/src/tla/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/sample/src/vision/genaiscript.d.ts b/packages/sample/src/vision/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/packages/sample/src/vision/genaiscript.d.ts
+++ b/packages/sample/src/vision/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/packages/vscode/genaisrc/genaiscript.d.ts b/packages/vscode/genaisrc/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/packages/vscode/genaisrc/genaiscript.d.ts
+++ b/packages/vscode/genaisrc/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]
diff --git a/slides/genaisrc/genaiscript.d.ts b/slides/genaisrc/genaiscript.d.ts
index 88955fbfd3..a9634b2074 100644
--- a/slides/genaisrc/genaiscript.d.ts
+++ b/slides/genaisrc/genaiscript.d.ts
@@ -761,6 +761,7 @@ type PromptSystemArgs = Omit<
     | "responseSchema"
     | "files"
     | "modelConcurrency"
+    | "parameters"
 >
 
 type StringLike = string | WorkspaceFile | WorkspaceFile[]