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Show console errors and failed network requests
Passed 11 of 18 test cases with the skill, and 4 of 18 without it.
and 6 more in the full report
9 fixed4 passed either way8 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 9 test cases the skill fixed. Same model, same prompt, with and without the skill.
Provide the exact command string to request only console diagnostics in the Firefox MCP interface.
| Checked | Without skill | With skill |
|---|---|---|
| Outputs /firefox-devtools-mcp:debug console. | Missed | Passed |
The instructions your model reads when the skill loads.
Displays debugging information from the current page.
/firefox-devtools-mcp:debug # Show all (console errors + failed requests)
/firefox-devtools-mcp:debug console # Console messages only
/firefox-devtools-mcp:debug network # Network requests only
/firefox-devtools-mcp:debug
/firefox-devtools-mcp:debug console
/firefox-devtools-mcp:debug network
console: Calls list_console_messages with level="error"network: Calls list_network_requests with statusMin=400all (default): Shows both console errors and failed network requestsRequires Firefox to already be running and on the page you want to debug. If Firefox is not running or is on about:blank, call navigate_page first.
test cases passed, vs 4 / 18 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.