refactor: unify tool reason requirements

src/routes/learningToolBridge.ts

@@ -9,19 +9,23 @@ import { type SkillStore } from "../skills/store.js";
 const memoryInput = z.object({
   action: z.enum(["add", "list", "replace", "remove"]),
   scope: z.string().max(32),
-  reason: z.string().max(2000).optional(),
+  reason: z.string().trim().min(1).max(2000).optional(),
   content: z.string().max(20000).optional(),
   target_id: z.string().max(128).optional(),
-}).strict();
+}).strict().refine((input) => input.action === "list" || Boolean(input.reason), {
+  path: ["reason"], message: "reason is required for writes, updates and removals",
+});
 const skillInput = z.object({
   action: z.enum(["list", "write_skill", "remove_skill", "append_pattern", "remove_pattern", "write_reference", "remove_reference", "write_script", "remove_script"]),
   skill_path: z.string().max(512),
-  reason: z.string().max(2000).optional(),
+  reason: z.string().trim().min(1).max(2000).optional(),
   content: z.string().max(200000).optional(),
   file_path: z.string().max(512).optional(),
   pattern: z.string().max(20000).optional(),
   target_id: z.string().max(128).optional(),
-}).strict();
+}).strict().refine((input) => input.action === "list" || Boolean(input.reason), {
+  path: ["reason"], message: "reason is required for writes, updates and removals",
+});
 
 export const registerLearningToolBridge = (app: Express, options: {
   internalToken: string;