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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeReleasesv2.1.224entry #77

Claude Code v2.1.224 ·

Assistant text is scanned for harness-shaped tags

Claude's own replies are scanned for text imitating internal control markup, and matches counted only.

Under the hood Internal Changes
JSON All of v2.1.224
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
PermissionsArea: what it touches
Internal ChangesKind: in v2.1.224,
What probably matters to youSection of the release
What

Main-session assistant messages are now checked for text that looks like Claude Code's own internal control markup, including system reminders, harness envelopes and token-count, session-context, wake and role-turn shaped lines. Nothing is rewritten; the matches are only counted and reported.

Details
  • Runs for main-session, non-error assistant messages only, with no flag involved.
Evidence

tengu_assistant_output_harness_content

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.224 →

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