# Anthropic — Agentic coding is straining CI. Here’s how we scaled test impact analysis at Anthropic

- Company: Anthropic (anthropic.com)
- Announced: 2026-09-14
- Category: not stated
- Coverage: not counted
- Announcement: no
- Group: routine
- Source: https://claude.com/blog/agentic-coding-is-straining-ci-heres-how-we-scaled-test-impact-analysis-at-anthropic
- Record: https://forck.live/items/10589-agentic-coding-is-straining-ci-here-s-how-we-scaled-test-impact-analysis-at
- Subject: Claude

Anthropic engineers ship 8x more code per quarter than in 2021-2025, with Claude authoring 80% of that code and also reviewing and approving pull requests. The company scaled its test impact analysis service to handle a 25x increase in CI jobs over six months, redesigning the architecture after three temporary patches.

## Evidence

Verbatim from https://claude.com/blog/agentic-coding-is-straining-ci-heres-how-we-scaled-test-impact-analysis-at-anthropic:

> Anthropic engineers on average ship 8x as much code per quarter as they did from 2021-2025. Claude authors 80% of that code and it also plays a large role in reviewing and approving PRs as well .

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