feat: add canonical typed tool outputs

docs/user/develop/practice/index.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write
-index.md: 0261b49b071167f7c2a33f78bbc1959cc6f1879f
-index.zh.md: 5819344430fcbde31bf825e9815120983e44e3f6
+index.md: e197d499d7f5bd9911ea60bebf584251cd4ed915
+index.zh.md: 8b8d08f9d0c6d0ca8d95fbaa3281c98b7a600fe4

docs/user/develop/practice/index.md

@@ -132,9 +132,13 @@ export function apply(ctx: Context) {
     parameters: {
       input: { type: 'string', required: true },
     },
+    output: {
+      schema: { type: 'string' },
+      render: (_args, value) => [{ type: 'text', text: value }],
+    },
     async execute(args) {
       const result = await ctx.myCap.execute({ input: args.input })
-      return [{ type: 'text', text: result.output }]
+      return result.output
     },
   }))
 }

docs/user/develop/practice/index.zh.md

@@ -132,9 +132,13 @@ export function apply(ctx: Context) {
     parameters: {
       input: { type: 'string', required: true },
     },
+    output: {
+      schema: { type: 'string' },
+      render: (_args, value) => [{ type: 'text', text: value }],
+    },
     async execute(args) {
       const result = await ctx.myCap.execute({ input: args.input })
-      return [{ type: 'text', text: result.output }]
+      return result.output
     },
   }))
 }