refactor(codemode): inline trivial runtime helpers

packages/codemode/src/tool-runtime.ts

@@ -299,17 +299,16 @@ const definitions = <R>(
   return entries
 }
 
-const describeDefinition = <R>(path: string, definition: Definition<R>): ToolDescription => ({
-  path,
-  description: definition.description,
-  signature: `${toolExpression(path)}(input: ${inputTypeScript(definition)}): Promise<${outputTypeScript(definition)}>`,
-})
-
 const visibleDefinitions = <R>(tools: HostTools<R>) =>
-  definitions(tools).flatMap(({ path, definition }) => {
-    const description = describeDefinition(path, definition)
-    return [{ path, definition, description }]
-  })
+  definitions(tools).map(({ path, definition }) => ({
+    path,
+    definition,
+    description: {
+      path,
+      description: definition.description,
+      signature: `${toolExpression(path)}(input: ${inputTypeScript(definition)}): Promise<${outputTypeScript(definition)}>`,
+    },
+  }))
 
 export const catalog = <R>(tools: HostTools<R>): ReadonlyArray<ToolDescription> =>
   visibleDefinitions(tools).map(({ description }) => description)
@@ -360,16 +359,10 @@ const termForms = (term: string): Array<string> => {
   return forms
 }
 
-const firstLine = (text: string) => text.split("\n", 1)[0]!.trim()
-
-/** One-line description used on inline catalog lines; the full text stays in search results. */
-const brief = (text: string, max = 120) => {
-  const line = firstLine(text)
-  return line.length > max ? line.slice(0, max - 1) + "..." : line
-}
-
 const catalogLine = (tool: ToolDescription) => {
-  const description = brief(tool.description)
+  // Inline catalog lines use only a compact first line; full text stays in search results.
+  const line = tool.description.split("\n", 1)[0]!.trim()
+  const description = line.length > 120 ? line.slice(0, 119) + "..." : line
   return description === "" ? `  - ${tool.signature}` : `  - ${tool.signature} // ${description}`
 }
 
@@ -644,9 +637,6 @@ export type ToolRuntime<R = never> = {
   readonly keys: (path: ReadonlyArray<string>) => ReadonlyArray<string>
 }
 
-const failureMessage = (error: unknown): string =>
-  error instanceof ToolError || error instanceof ToolRuntimeError ? error.message : "Tool execution failed"
-
 export const make = <R>(
   tools: HostTools<R>,
   /** Undefined means unlimited tool calls. */
@@ -665,9 +655,16 @@ export const make = <R>(
     const startedAt = Date.now()
     return effect.pipe(
       Effect.tap(() => onEnd({ ...call, durationMs: Date.now() - startedAt, outcome: "success" })),
-      Effect.tapError((error) =>
-        onEnd({ ...call, durationMs: Date.now() - startedAt, outcome: "failure", message: failureMessage(error) }),
-      ),
+      Effect.tapError((error) => {
+        const message =
+          error instanceof ToolError || error instanceof ToolRuntimeError ? error.message : "Tool execution failed"
+        return onEnd({
+          ...call,
+          durationMs: Date.now() - startedAt,
+          outcome: "failure",
+          message,
+        })
+      }),
     )
   }