But presumably everyone in your company/team is using Jira, so it's not an "ad" because it's a product already used internally. Claude is appending these links to all commits by default, whether or not others on the team use Claude. Those are very different things.

Good counterpoint. We link to GitHub from JIRA, and the reverse. Linking to the Claude session that generated the code seems reasonable...it's a related artifact.

One thing I'm not sure about: what is the utility of linking to the session? What are folks expected to do with that data?

If _you_ choose to do it, no.

If the tool auto-does it, yes.