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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.259 ·

Artifact pinning gated behind new flag, with richer relay error handling

Pin and unpin go through a relay path with clearer failure messages, and a gated helper decides whether pinning is offered at all.

TierNothing to try yethow much it should matter to you
Useful3my rating, 1 to 5
Signal4worth watching, 1 to 5
AreaArtifactswhat it touches
KindIn Developmentin v2.1.259,
Nothing to try yet

Pin and unpin go through a relay path with clearer failure messages, and a gated helper decides whether pinning is offered at all.

Pin and unpin actions now go through a dedicated relay-aware path with new failure states: relay unavailable, relay error, ok-from-foreign-service, and credential refused. User-facing errors are clearer, telling the user to check with action "list" before retrying, and a gated helper now determines whether pinning is offered at all.

Read from
Names in the bundlelist
Feature flag
tengu_cobalt_plinth_holly Off in both readings

The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.

This account: off · anonymous baseline: off · compiled default in v2.1.259: off

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.259. It isn't a statement about your account. What a flag value here can and cannot tell you

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 Customize Claude Tag touched a line naming list after this was published. The Configure page also shows the channel's resolved access. Its **Tools and access** tab lists the channel's resolved connections and any allowed domains. Members can see those lists but not change them there. The same tab's **Plugins** c… claude-tag/admins/customize see the edit
Confirmed since Anthropic's documentation has since written up list, on MCP, plugins, skills, and hooks. | `.mcp.json` | MCP servers bundled with this plugin. A JSON object keyed by server name: `{"mcpServers": {"<name>": {"type": "http", "url": "...", "oauth": true}}}`. A remote entry uses `type` (`http` or `sse`), not `transport`, and suppo… third-party/claude-desktop/extensions see the edit
How sure we are
Two sources agreeTwo things we can check say the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up list, on MCP, plugins, skills, and hooks.
The name it cites is new in this buildNew in this build: tengu_cobalt_plinth_holly

See this entry in the whole of v2.1.259 →

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