Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Activity DigestsArea: what it touches
Internal ChangesKind: in v2.1.292,
Internal ChangesSection of the release
What
Activity digests are summaries of recent activity that Claude Code passes to the model. They are now wrapped in tags that carry a nonce, which is a one-off random code. The digest notes that anything shaped like a tag but without that code is just text inside the digest.
They are also capped in size:
Long inputs are shortened.
Over the character limit, earlier items are left out, with a note saying how many were omitted.
Why
Text inside a digest cannot pass itself off as a real tag. This makes the digest harder to use for slipping in instructions, and keeps very long digests from growing without limit.
