overview changedagents-and-tools/tool-use/overview
Nearest release: v2.1.307, published an hour before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Recorded here
Lines+3added
Lines−3removed
From line
125
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits17to this page, all time
The whole hunk
from line 125, old and new numbered
/
from line 125
125125 client = Anthropic::Client.new
126126
127127 message = client.messages.create(
128 model: "claude-opus-5-5",
128 model: Anthropic::Model::CLAUDE_OPUS_5_5,
129129 max_tokens: 1024,
130130 tools: [{ type: "web_search_20260209", name: "web_search" }],
131131 messages: [{ role: "user", content: "What's the latest on the Mars rover?" }]
from line 587
587587
588588 # Claude replies with a tool_use block naming the tool and its arguments.
589589 response = client.messages.create(
590 model: "claude-opus-5-5",
590 model: Anthropic::Model::CLAUDE_OPUS_5_5,
591591 max_tokens: 1024,
592592 tools: tools,
593593 # Ask for at most one tool call per turn.
from line 609
609609 }
610610 ]
611611 followup = client.messages.create(
612 model: "claude-opus-5-5",
612 model: Anthropic::Model::CLAUDE_OPUS_5_5,
613613 max_tokens: 1024,
614614 tools: tools,
615615 tool_choice: {type: "auto", disable_parallel_tool_use: true},
No line in this hunk matches that.