How fast does Claude Code actually work?
Measures tool execution rate (tools/hour) per session — the pace at which Claude calls tools, classified into slow / medium / fast / burst tiers.
npx cc-speed
npx cc-speed --jsonOr open index.html in a browser and drag in .jsonl files.
- Median tools/hr — typical execution pace
- p90 — what a fast session looks like
- Pace tiers — slow (<50) / medium (50–199) / fast (200–599) / burst (600+)
- Top sessions — fastest sessions with tool count and duration
cc-speed — How fast does Claude Code actually work?
Sessions analyzed: 393
Execution rate
median 99 tools/hr
mean 169 tools/hr
p90 410 tools/hr
max 1,435 tools/hr
Pace tiers
slow ██████░░░░░░░░░░░░░░░░ 28% <50 tools/hr — careful work
medium ████████░░░░░░░░░░░░░░ 38% 50–199 tools/hr
fast ███████░░░░░░░░░░░░░░░ 30% 200–599 tools/hr
burst █░░░░░░░░░░░░░░░░░░░░░ 3% 600+ tools/hr
Fastest sessions
#1 1,435 tools/hr — 12 tools in 1 min
#2 1,005 tools/hr — 15 tools in 1 min
#3 851 tools/hr — 20 tools in 1 min
MIT
Claude Code Ops Kit ($19) — 16 production hooks + 5 templates + 3 tools. Built from 160+ hours of autonomous operation.