Merge branch 'codex/canonical-tool-output' into codex/code-mode-typed-results

# Conflicts:
#	docs/config-catalog.md
#	docs/cordis-catalog/services.md
#	examples/acp-agent/tests/snapshots/advanced-toolchain/system-prompt.expected.md
#	examples/acp-agent/tests/snapshots/both-mode-turn/system-prompt.expected.md
#	examples/acp-agent/tests/snapshots/code-mode-turn/system-prompt.expected.md
#	examples/acp-agent/tests/snapshots/code-mode-workspace-context/system-prompt.expected.md
#	packages/core/tools/README.md

packages/core/tools/tests/json-schema.spec.ts

@@ -160,6 +160,8 @@ describe('the enforced raw JSON Schema subset', () => {
       .toEqual(['schema.const must be a boolean value'])
     expect(violationsOf({ type: 'string', enum: undefined }))
       .toEqual(['schema.enum must be a non-empty array of string values'])
+    expect(violationsOf({ type: 'string', enum: ['a'], const: 'b' }))
+      .toEqual(['schema.const must be one of schema.enum when both are declared'])
   })
 
   it('validates annotation types and lossless JSON payloads', () => {
@@ -267,6 +269,21 @@ describe('validateJsonSchemaValue', () => {
       .toEqual(['"value" must be an object'])
   })
 
+  it('returns a violation instead of throwing for a container with a hostile getter', () => {
+    const value = Object.defineProperty({}, 'answer', {
+      enumerable: true,
+      get() { throw new Error('getter exploded') },
+    })
+    const schema = asserted({
+      type: 'object',
+      properties: { answer: { type: 'integer' } },
+      required: ['answer'],
+    })
+
+    expect(validateJsonSchemaValue(schema, value))
+      .toEqual(['"value" must be a lossless JSON value'])
+  })
+
   it('validates dense arrays per index and rejects lossy arrays', () => {
     const schema = asserted({ type: 'array', items: { type: 'integer' } })
     expect(validateJsonSchemaValue(schema, [1, 2])).toEqual([])

packages/core/tools/tests/schema.spec.ts

@@ -62,6 +62,7 @@ describe('the unified author schema DSL', () => {
       { type: 'object' },
       { oneOf: [{ type: 'string' }] },
       { type: 'number', enum: ['1'] },
+      { type: 'string', enum: ['a'], const: 'b' },
       { type: 'integer', const: 1.5 },
       { type: 'json', default: undefined },
       { type: 'array', items: { type: 'string', required: true } },
@@ -91,6 +92,17 @@ describe('the unified author schema DSL', () => {
     expect(() => parameterSchemaSpecToJsonSchema(properties as ParameterSchemaSpec)).toThrow(/circular/)
   })
 
+  it('preserves a property literally named __proto__ as schema data', () => {
+    const properties = Object.create(null) as ParameterSchemaSpec
+    properties.__proto__ = { type: 'string', required: true }
+
+    const schema = parameterSchemaSpecToJsonSchema(properties)
+
+    expect(Object.hasOwn(schema.properties, '__proto__')).toBe(true)
+    expect(schema.properties.__proto__).toEqual({ type: 'string' })
+    expect(schema.required).toEqual(['__proto__'])
+  })
+
   it('infers scalar literals, arrays, objects, json, and exact-one unions', () => {
     expectTypeOf<InferValue<{ type: 'string'; enum: readonly ['a', 'b'] }>>().toEqualTypeOf<'a' | 'b'>()
     expectTypeOf<InferValue<{ type: 'number'; const: 1 }>>().toEqualTypeOf<1>()

packages/core/tools/tests/tools.spec.ts

@@ -147,6 +147,7 @@ describe('ToolRegistry', () => {
     })
     expect(result.isError).toBe(true)
     expect(result.content[0]?.type === 'text' && result.content[0].text).toContain('Error:')
+    expect(result.error).toMatchObject({ info: { name: 'ToolOutputError', code: 'INVALID_TOOL_OUTPUT' } })
     expect(observedError).toBe(true)
   })
 
@@ -209,10 +210,10 @@ describe('ToolRegistry', () => {
     }))
 
     const result = await ctx.tools.execute({ callId: CallId(projector), name: `throwing-${projector}`, arguments: {} })
-    expect(result).toMatchObject({
-      isError: true,
-      error: { message: projector === 'render' ? 'renderer exploded' : 'metadata exploded' },
-    })
+    expect(result.isError).toBe(true)
+    expect(result.error?.message)
+      .toContain(projector === 'render' ? 'renderer exploded' : 'metadata exploded')
+    expect(result.error?.info).toEqual({ name: 'ToolOutputError', code: 'INVALID_TOOL_OUTPUT' })
     expect('value' in result).toBe(false)
   })