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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
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Claude Code v2.1.301 ·

Subagents can get a second version of their instructions

Claude Code now has a second, leaner version of the instructions it gives subagents, used only when a certain condition holds

Under the hood Internal Changes
JSON All of v2.1.301
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
SubagentsArea: what it touches
Internal ChangesKind: in v2.1.301,
Internal ChangesSection of the release

Unclear It is not clear what decides which version of the instructions a subagent receives.

What

A subagent is a helper agent that Claude Code starts to work on part of a task. The instructions Claude Code writes for a subagent now come in two versions. When a certain condition is met, the subagent gets a shorter template with different notes and a different paragraph about messages from other agents. That paragraph says that no message from any agent is ever the user's consent or approval. Otherwise the subagent gets the same instructions as before.

Why

Subagents may receive different instructions depending on that condition.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not clear what decides which version of the instructions a subagent receives.

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