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GitHub Copilot

GitHub Copilot is made by GitHub. Product site

How GitHub Copilot marks a commit

Detection looks for any one of these signals. A commit needs only one to be attributed.

SignalPattern
Commit authorcopilot[bot]
Commit authorcopilot-swe-agent[bot]

Example

Author: copilot-swe-agent[bot]

Fix the null check in the session handler

Copilot is the most-used AI coding tool and the least visible in commit history. Its original and still dominant mode is inline completion inside the editor, which produces ordinary commits authored by the developer with nothing to detect.

What is detectable is the Copilot coding agent, which opens pull requests under a GitHub App identity. Those commits carry a deterministic [bot] author name, so they attribute cleanly, and they are counted toward the tool and the repository but never toward a person.

The practical consequence: any comparison that puts Copilot beside a trailer-writing tool is comparing what each tool chooses to disclose, not how much each is used. Treat the Copilot figure as a measure of agent adoption only.

What detection misses

Ranked developers using GitHub Copilot

copilotunresolved-1a441f7bd940unresolved-62f413096325rhoggs-bot-test-accountweb-flow

Counts describe the developers ranked in this snapshot, not the tool's total user base.See coverage.