PostHog JS Engineering Benchmarks

PostHog Analytics · Updated October 26, 2026

PostHog JS delivery benchmarks are based on 131 merged pull requests in the last 30 days (1,759 all-time), with 19.0 hours median cycle time, 0.8 hours median review time, and 38 active contributors. AI-related signals appear on 48.9% of recent work. PR volume is down -54% compared to the prior period.

Posthog Js merged 53 PRs in the past 30 days with 0% showing AI-related signals. Median cycle time is 2.57 hours.
Median Cycle Time
19.0h
PR open to merge
Median Review Time
0.8h
first review to approval
AI-Related Signals
48.9%
directional signal across recent PRs
Best Signal Fast Delivery
18.9h
Median cycle time of 18.9h
Watch Out Declining Cadence
-54%
PR volume down 54% vs prior period

Repo vs PostHog Analytics Average

+1.5pp
AI Signals
+13.0h
Cycle Time
+0.7h
Review Time

Delivery Trend and AI Signals

PR Backlog (Humans)

Excludes AI agents and automation accounts.

PR Backlog (AI Agents)

AI coding agents only.

Cycle Time by AI-Related Signals

60.1h
with signals
65.9h
baseline
-8.9%
difference

PR Breakdown

74 with signals / 144 total PRs

Top AI Tools

claude_code 57
claude 33
chatgpt 4
cursor 1

PR Type Breakdown

unknown 124
bugfix 6
feature 1

Methodology

Metrics are computed from merged pull request data synced daily from GitHub. AI-related metrics are directional signals inferred from pull request activity patterns and heuristics. Summary metrics use a 30-day rolling window; trends use a 90-day window. Last updated 2 hours, 46 minutes ago.

Updated daily from public GitHub pull requests.

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