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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

Claude Code v2.1.239 ·

Empty placeholder registry runs when you open the background agents view

Opening the background agents view runs an empty registration step with no visible effect.

Under the hood Nothing to try yet In Development
JSON All of v2.1.239
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
AgentsArea: what it touches
In DevelopmentKind: in v2.1.239,
In DevelopmentSection of the release

A placeholder registry is called from the /agents view but registers an empty object nobody reads.

What

Opening the background-agents fleet view (/agents) now loads an extra module and calls a registration step before drawing anything. It registers an empty object and no code reads it back, so there is no visible effect either way.

Details
  • registerToolHosts() stores a literal {} into a per-host singleton; the singleton exposes a runtime value that falls back to a frozen empty object, plus a flag saying whether anything was registered.
  • Neither of those is read anywhere in the build, and {} is the only value ever registered. This is a seam wired up ahead of what will eventually fill it.
Evidence

registerToolHosts

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

Read from
Names in the bundle/agents
Since it was published

The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.

Added since A small documentation edit on Manage multiple agents with agent view touched a line naming /agents after this was published. To compare agent view with subagents, agent teams, and worktrees, see [Run agents in parallel](/docs/en/agents). Agent view runs sessions on your machine and you dispatch each one; to have Claude start and track parallel sessions in the cl… agent-view see the edit
Confirmed since Anthropic's documentation has since written up /agents, on permission-policies. agent=$(curl -fsSL https://api.anthropic.com/v1/agents \ managed-agents/permission-policies see the edit
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up /agents, on permission-policies.

See this entry in the whole of v2.1.239 →

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