chrome-devtools-mcp-v1.3.0

ChromeDevTools/chrome-devtools-mcpchrome-devtools-mcp-v1.3.0Jun 18, 2026by browser-automation-bot

AI Summary

Adds new memory debugging tools including heap snapshot dominators and retaining paths, improves page listing by including titles, and adds CLI options to cap screenshot sizes.

Key Highlights

New heap snapshot tools (dominators, retaining paths, edges)
Page title included in list_pages output
CLI screenshot size capping options
Improved heap snapshot proxy implementation

New Features

Add get_heapsnapshot_dominators MCP tool
Add retaining paths MCP tool
Add the get_heapsnapshot_edges MCP tool
include page title in list_pages output
screenshot: add CLI options to cap screenshot size at the source

Full Release Notes

## [1.3.0](https://github.com/ChromeDevTools/chrome-devtools-mcp/compare/chrome-devtools-mcp-v1.2.0...chrome-devtools-mcp-v1.3.0) (2026-06-18)


### 🎉 Features

* Add get_heapsnapshot_dominators MCP tool ([#2215](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2215)) ([08c234e](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/08c234ea4b14b0ba0906deeca396873614a8c063))
* Add retaining paths MCP tool ([#2187](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2187)) ([a97c642](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/a97c642d43d19fc5198038a7544ff41528ddc316))
* Add the get_heapsnapshot_edges MCP tool ([#2180](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2180)) ([4f8eb7a](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/4f8eb7ad6beecc58f56ec383f9ff43549a5604d4))
* include page title in list_pages output ([#2166](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2166)) ([b646feb](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/b646feb4f33743a5ecdc6c5e3744e98f86374af3))
* **screenshot:** add CLI options to cap screenshot size at the source ([#1823](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/1823)) ([55c8a54](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/55c8a541d4f842056db6bc843e54117b07bf06c1))
* Use HeapSnapshotProxy.nodeIndexById ([#2193](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2193)) ([6bd8c91](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/6bd8c91678035b5aa18ee40f72e1f630aa528837))


### 🛠️ Fixes

* handle missing third-party tool toolGroup description gracefully ([#2224](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2224)) ([8fe398e](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/8fe398eb5d6ee87edb51d4e37570d04b02679346))
* handle screencast file extensions case-insensitively and clean up temp dir on failure ([#2207](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2207)) ([ba80096](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/ba80096521da437a834953f697c4c98bcbd6e658))
* limit windows test concurrency ([#2205](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2205)) ([e77101e](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/e77101e5dc53f9f9541eb91916eedb53495544cc))
* Reset toolGroups before gathering toolGroups ([#2200](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2200)) ([ed02047](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/ed02047ae90f25c4c15adb8fd7e224b963f43135))
* return error message when screencast_stop is called with no active recording ([#2209](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2209)) ([9e32002](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/9e32002a6947ff695e463a5fefa99a7f66f19403))