Description of the bug
It hasn't happened until the last update, these error primarily occur during step executions "CORTEX_STEP_TYPE_MCP_TOOL" and rage from state managment issues "mising snapshots" to conenction stability problem.
The errors doesn't return a value or data so ai just seems: "Step was canceled by user".
Reproduction
Ran with these arguments:
{
"type": "url",
"url": "blablablawebsite.com/login"
}
its freeze when trying navigate page.
it also happened in
Ran with these arguments:
{
"uid": "2_17"
}
error executing cascade step: CORTEX_STEP_TYPE_MCP_TOOL: No snapshot found for page 1. Use take_snapshot to capture one.
error executing cascade step: CORTEX_STEP_TYPE_MCP_TOOL: Timed out after waiting 5000ms
cause: Locator.waitHandle
transport error: transport closed
Expectation
Snapshots should persist across the session until explicitly cleared.
Timeouts should be more robust or configurable.
The transport layer should maintain a stable connection during active tool calls.
Steps should only be "canceled" upon actual user request.
MCP configuration
"google-DevTools": {
"args": [
"-y",
"chrome-devtools-mcp@latest",
"--browser-url=http://127.0.0.1:9222"
],
"command": "npx.cmd",
"disabled": false
}
Chrome DevTools MCP version
v0.21.0
Chrome version
Version 147.0.7727.101 (Official Build) (64-bit)
Coding agent version
Windsurf
Model version
İts same with gpt 5.2 and kiwi K2.5
Chat log
MCP'de teknik sorun var, alternatif yöntemle devam ediyorum. Skipped web request freehourboost.com Skipped web request freehourboost.com Feedback submitted devam MCP’nin “donması” genelde snapshot’ın eskimesi/transport kopması yüzünden oluyor; ben her adımda yeniden take_snapshot alıp, küçük ve tekil aksiyonlarla ilerleyeceğim
Node version
yes I have
Operating system
Windows
Extra checklist
Description of the bug
It hasn't happened until the last update, these error primarily occur during step executions "CORTEX_STEP_TYPE_MCP_TOOL" and rage from state managment issues "mising snapshots" to conenction stability problem.
The errors doesn't return a value or data so ai just seems: "Step was canceled by user".
Reproduction
Ran with these arguments:
{
"type": "url",
"url": "blablablawebsite.com/login"
}
its freeze when trying navigate page.
it also happened in
Ran with these arguments:
{
"uid": "2_17"
}
error executing cascade step: CORTEX_STEP_TYPE_MCP_TOOL: No snapshot found for page 1. Use take_snapshot to capture one.
error executing cascade step: CORTEX_STEP_TYPE_MCP_TOOL: Timed out after waiting 5000ms
cause: Locator.waitHandle
transport error: transport closed
Expectation
Snapshots should persist across the session until explicitly cleared.
Timeouts should be more robust or configurable.
The transport layer should maintain a stable connection during active tool calls.
Steps should only be "canceled" upon actual user request.
MCP configuration
Chrome DevTools MCP version
v0.21.0
Chrome version
Version 147.0.7727.101 (Official Build) (64-bit)
Coding agent version
Windsurf
Model version
İts same with gpt 5.2 and kiwi K2.5
Chat log
MCP'de teknik sorun var, alternatif yöntemle devam ediyorum. Skipped web request freehourboost.com Skipped web request freehourboost.com Feedback submitted devam MCP’nin “donması” genelde snapshot’ın eskimesi/transport kopması yüzünden oluyor; ben her adımda yeniden take_snapshot alıp, küçük ve tekil aksiyonlarla ilerleyeceğim
Node version
yes I have
Operating system
Windows
Extra checklist