chrome_page_load_resource_summary

MCP tool from Perfetto MCP Rs by tooluse-labs

Compact URL-level resource/request summary for page-load windows, ranked by max overlap with normalized origin, navigation/renderer relatedness, and attribution-scope evidence

How to use it

Project documentation lists chrome_page_load_resource_summary for the Perfetto MCP Rs MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), then check which tools your installed version makes available. Tool availability can depend on configuration and credentials. A server handshake does not verify this tool’s behavior. See the full listing for setup details.

Install Perfetto MCP Rs

$cargo install --locked perfetto-mcp-rs

FULL PERFETTO MCP RS LISTING

Other tools in Perfetto MCP Rs (16)

chrome_main_thread_hotspots

Top main-thread tasks by duration with ts, upid/pid, cpupct, and optional page-load/time-window filters

chrome_page_load_resource_hotspots

URL-bearing resource/request slices on thread, process, and async tracks ranked by page-load/window overlap, with process/thread identity where available

chrome_page_load_resource_pipeline

One URL's lifecycle/request spans joined with background parse, script evaluation, and style/layout signals, plus an evidence boundary for DNS/TLS/TTFB/cache/download hypotheses

chrome_page_load_script_hotspots

Renderer main-thread script execution grouped by URL/slice/process within a page-load/window, with style/layout descendant signals

chrome_page_load_summary

Page loads: URL, raw boundary timestamps, FCP, LCP, DCL, load timings (ms)

chrome_scroll_jank_summary

Worst janky frames with cause, sub-cause, delaysincelastframe

chrome_startup_summary

Browser startup events and time-to-first-visible-content

chrome_web_content_interactions

Web content interactions (clicks, taps, INP) ranked by duration

execute_sql

Run a PerfettoSQL query (max 5000 returned rows). Prefer the dedicated chrome / list tools for standard analyses; use this for custom joins or aggregations they don't expose. Output shaping: head/limit, summary, columnsonly, includerowcount, maxstringlen. Sensitive URL/header/cookie/path values reda

list_processes

List processes (pid, name, start/end timestamps)

list_stdlib_modules

List PerfettoSQL stdlib modules, optional domain / query / limit filters (no trace needed)

list_table_structure

Show column names and types for a table

list_tables

List tables/views in the loaded trace, optional GLOB filter

list_threads_in_process

List threads under a process name (up to 2000)

load_trace

Open one trace with path, or several with paths; returns an opaque traceid and lightweight routing summary for each file (type/profile, duration, platform, process/thread counts, capabilities, redaction policy, recommended next tools)

slice_descendants_breakdown

Summarize child slices under a long slice id without hand-writing recursive CTEs