chore: release v1.19.0

Author: jpr5

.claude-plugin/marketplace.json

@@ -9,7 +9,7 @@
       "source": {
         "source": "npm",
         "package": "@copilotkit/aimock",
-        "version": "^1.18.0"
+        "version": "^1.19.0"
       },
       "description": "Fixture authoring skill for @copilotkit/aimock — LLM, multimedia (image/TTS/transcription/video), MCP, A2A, AG-UI, vector, embeddings, structured output, sequential responses, streaming physics, record/replay, agent loop patterns, and debugging"
     }

.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "aimock",
-  "version": "1.18.0",
+  "version": "1.19.0",
   "description": "Fixture authoring guidance for @copilotkit/aimock — LLM, multimedia, MCP, A2A, AG-UI, vector, and service mocking",
   "author": {
     "name": "CopilotKit"

CHANGELOG.md

@@ -1,10 +1,10 @@
 # @copilotkit/aimock
 
-## [Unreleased]
+## [1.19.0] - 2026-05-06
 
 ### Added
 
-- **Async fixture responses** — Fixture responses can now be sync or async functions that receive the request and return the response dynamically. Enables awaiting side effects (database writes, API calls) before constructing the response — eliminating race conditions in complex multi-turn E2E tests. Works with all providers, streaming, and convenience methods (`on()`, `onMessage()`, `onTurn()`). (Feature request by @5ebastianMeier, issue #154)
+- **Async fixture responses** — Fixture responses can now be sync or async functions that receive the request and return the response dynamically. Enables awaiting side effects (database writes, API calls) before constructing the response — eliminating race conditions in complex multi-turn E2E tests. Works with all providers, streaming, and convenience methods (`on()`, `onMessage()`, `onTurn()`, `onToolCall()`, `onToolResult()`). (Feature request by @5ebastianMeier, issue #154)
 - **Snapshot-style recording** — When `X-Test-Id` is present, recorded fixtures are saved to `<fixturePath>/<slugified-testId>/<provider>.json` instead of timestamp-based filenames. Multiple fixtures for the same test+provider merge into one file. Stable paths enable meaningful PR diffs and easy test-to-fixture mapping. (Feature request by @jantimon, issue #155)
 
 ### Fixed

charts/aimock/Chart.yaml

@@ -3,4 +3,4 @@ name: aimock
 description: Mock infrastructure for AI application testing (OpenAI, Anthropic, Gemini, MCP, A2A, vector)
 type: application
 version: 0.1.0
-appVersion: "1.18.0"
+appVersion: "1.19.0"

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@copilotkit/aimock",
-  "version": "1.18.0",
+  "version": "1.19.0",
   "description": "Mock infrastructure for AI application testing — LLM APIs, image generation, text-to-speech, transcription, audio generation, video generation, MCP tools, A2A agents, AG-UI event streams, vector databases, search, rerank, and moderation. One package, one port, zero dependencies.",
   "license": "MIT",
   "keywords": [