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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 v2.1.257 ·

Artifact comments/watch tool renames its action vocabulary

Artifact comment actions are respelled: read replaces comments, watch with on false replaces unwatch, and old names now error.

TierUse it nowhow much it should matter to you
Useful3my rating, 1 to 5
Signal2worth watching, 1 to 5
AreaArtifactswhat it touches
KindImprovementsin v2.1.257,
Use it now

Artifact comment actions are respelled: read replaces comments, watch with on false replaces unwatch, and old names now error.

Finding fe546477ccfcf6f4

The artifact comments/watch tool now steers users toward a new action vocabulary. Use read instead of comments, watch with on:false instead of unwatch, watch with no url instead of status, and watch with replies:true instead of resume_replies. Using an old action name now produces a validation error explaining the new spelling.

Read from
Names in the bundlereadwatchon:falsereplies:true
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 Work with Claude Tag touched a line naming watch after this was published. The usage page doesn't count usage that a credit covers, so that usage shows as \$0.00 there. While the credit covers your pilot, watch the **List price** column of the **Spend by channel** table at [`claude.ai/analytics/claude-tag`](https… claude-tag/overview see the edit
Confirmed since Anthropic's documentation has since written up watch, on Monitoring. When the request exhausts all retries on a transient error, `attempt` equals one more than that effective limit: 11 by default, and never more than 16 unless the watchdog is set. A lower value indicates a non-retryable error such as a `400… monitoring-usage see the edit
Added since A small documentation edit on Custom connectors touched a line naming read after this was published. Local-command connectors run inside the sandbox with the same network limits as Claude's code and a per-connector writable directory. Environment variables for local connectors are saved unencrypted in a configuration file readable by your… claude-science/custom-connectors see the edit
Confirmed since Anthropic's documentation has since written up read, 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
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up read, on MCP, plugins, skills, and hooks.

See this entry in the whole of v2.1.257 →

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