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CDP Feature Parity: native-devtools-mcp vs chrome-devtools-mcp

This document tracks feature parity between our CDP tools and chrome-devtools-mcp.

Tool Comparison

chrome-devtools-mcp native-devtools-mcp Notes
take_snapshot cdp_take_dom_snapshot DOM snapshot of interactive elements with d-prefixed UIDs
— cdp_find_elements Search live DOM for interactive elements by text query (preferred over full snapshot)
click cdp_click Click by UID, supports double-click
hover cdp_hover Hover by UID
fill cdp_fill Fill input/textarea/select by UID
press_key cdp_press_key Key combos (e.g., Control+A)
handle_dialog cdp_handle_dialog Accept/dismiss JS dialogs
navigate_page cdp_navigate URL, back, forward, reload
new_page cdp_new_page Create new tab
close_page cdp_close_page Close tab by index
wait_for cdp_wait_for Poll page text until any value appears (optional DOM snapshot via include_snapshot=true)
list_pages cdp_list_pages List open tabs
select_page cdp_select_page Switch active tab
evaluate_script cdp_evaluate_script Run JS with optional UID args
take_screenshot take_screenshot Native screenshot (not CDP)
type_text cdp_type_text Character-by-character keyboard input into a focused element. Use cdp_fill for bulk form-field entry; use cdp_press_key for single keys and modifier combos.
drag — Not implemented
fill_form — Not implemented (use cdp_fill per field)
upload_file — Not implemented
emulate — Not implemented (device emulation)
resize_page — Not implemented
lighthouse_audit — Not implemented
take_memory_snapshot — Not implemented
performance_start_trace — Not implemented
performance_stop_trace — Not implemented
performance_analyze_insight — Not implemented
get_console_message — Not implemented
list_console_messages — Not implemented
get_network_request — Not implemented
list_network_requests — Not implemented
— cdp_connect Connect via debugging port (chrome-devtools-mcp auto-connects)
— cdp_disconnect Disconnect from browser

Not Implemented (and why)

Low priority — niche or covered by other tools

  • drag: Uncommon interaction pattern. Can be done via cdp_evaluate_script with drag events.
  • fill_form: Convenience wrapper — use cdp_fill for each field individually.
  • upload_file: Requires DOM.setFileInputFiles — niche use case.

Performance/debugging — out of scope

  • lighthouse_audit, performance_*, take_memory_snapshot: Performance profiling tools. Out of scope for a general automation MCP.
  • emulate, resize_page: Device emulation. Can be done via cdp_evaluate_script if needed.

Console/network monitoring

  • get_console_message, list_console_messages: Requires subscribing to Runtime.consoleAPICalled events. Potential future addition.
  • get_network_request, list_network_requests: Requires subscribing to Network.requestWillBeSent events. Potential future addition.

Our total: 18 CDP tools (all listed unconditionally; calls return "No CDP connection" until cdp_connect succeeds)