Tim from the Copilot coding agent team here. We've now disabled these tips in pull requests created by or touched by Copilot, so you won't see this happen again for future PRs. We've been including product tips in PRs created by Copilot coding agent. The goal was to help developers learn new ways to use the agent in their workflow. But hearing the feedback here, and on reflection, this was the wrong judgement call. W…
If the PR is wholly authored by Copilot I get the spirit of this, although maybe not the best implementation. And "tips" like this that look like an ad for a product _definitely_ feel like an enshittification betrayal of the user, even if it was a genuine recommendation and not a paid advertisement.
In the OP's situation, where where Copilot was summoned to fix some thing within a human-authored PR, irrelevant modification of the PR description to insert unrelated content is specifically egregious. Copilot can easily include the tip in its own comment, so I'm curious why it was decided to edit the description of a PR instead.