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chrome-devtools-mcp-v1.3.0

gtsteffaniak/filebrowserchrome-devtools-mcp-v1.3.0Jun 18, 2026by browser-automation-bot

AI Summary

This release introduces new memory snapshot tools including dominators, retaining paths, and edges, alongside improvements to the `list_pages` output and fixes for screencast handling.

Key Highlights

  • New heap snapshot tools (dominators, retaining paths, edges)
  • Page titles added to `list_pages` output
  • Screenshot CLI options to cap source size
  • Fixes for tool group descriptions and screencast file extensions

New Features

  • `get_heapsnapshot_dominators` MCP tool
  • `retaining_paths` MCP tool
  • `get_heapsnapshot_edges` MCP tool
  • Page title in `list_pages` output
  • Screenshot CLI size cap option

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))