Understanding Accepted AI Lines vs. All Merged Lines in the AI Tool Adoption report

Last updated: September 1, 2026

This metric lives on the Tool utilization tab under AI insights. It compares vendor-reported accepted AI lines to org-wide merged lines. It is not traces attribution and not span-detect-1.

Find the report under AI Effectiveness → AI insights → Tool utilization.

Overview

The "Accepted AI Lines vs. All Merged Lines (Organization)" metric compares AI-generated code that developers accepted (as reported by the AI tool vendor) against total merged code output.

It is a directional org-level view: how much AI-accepted volume vs how much code you merged. It does not tell you which lines in a pull request were AI-authored. For that, use Agent Traces.

The two components

1. Accepted AI Lines

Volume of AI-generated code that developers accepted, according to the vendor API.

Typically includes:

  • Lines added from accepted AI suggestions

  • Lines deleted from accepted AI suggestions

  • Accepted suggestion tabs, converted to an equivalent line count

Filters:

  • Only active contributors

  • Excludes non-employees and non-contributor roles

2. All Merged Lines (Organization)

Total volume of code changes merged across the organization in the same period.

Includes added, removed, and modified lines on merged pull requests, for active developer contributors. Generated files, vendor directories, and other ignore patterns are excluded (see Settings → Metrics).

Filter behavior

  • This chart is not filterable by People or Team. It always represents org-wide accepted lines vs org-wide merged lines, even if you have People or Teams selected at the top of the page.

  • The tool filter is respected on the Accepted vs Merged LOC chart.

  • If you filter by tool (except Copilot, which does not send Span per-person accepted-line data), the grid at the bottom of the report adds a column for accepted AI vs all merged lines at person or team level.

The combined ratio

(Accepted AI Lines ÷ All Merged Lines) × 100 = AI Adoption %

Use it for scale and trend, not as a substitute for traces AI code ratio:

  • Scale: absolute AI-accepted volume vs total engineering output

  • Share: what fraction of merged output the vendor attributes to accepted AI

  • Trend: accelerating (AI lines growing faster than total), proportional, stalling, or declining

Interpretation note: the percentage can look inflated. Developers accept AI suggestions throughout development, including on branches that are squashed, rebased, or never merged. The metric is accepted-suggestion volume, not final merged-diff attribution.

Where to find it

  1. Open AI Effectiveness → AI insights → Tool utilization.

  2. Select a specific AI tool, or view all tools.

  3. Scroll to the Adoption section.

  4. Find the "Accepted AI Lines vs. All Merged Lines (Organization)" card.

You will see a two-series chart (AI lines accepted and lines merged), a ratio trend, and summary stats.

Available filters on the page: date range, team, individual, IC level, developer tool. Remember that People/Team filters do not change this specific org-wide card.

Related