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
One change · api

spawn.sh: called once per claimed work item changed

managed-agents/self-hosted-sandboxes

Nearest release: v2.1.280, published under 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+6added
Lines−5removed
From line 96 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits12to this page, all time

The whole hunk

from line 96, old and new numbered
/
lines
from line 96
9696 
9797 <File filename="environment.yaml">
9898 ```yaml
99 # yaml-language-server: $schema=https://platform.claude.com/schemas/ant/beta/environment.json
99100 name: self-hosted
100101 config:
101102 type: self_hosted
from line 221
220221 For Linux environments, download the release binary directly.
221222 
222223 ```bash
223 VERSION=1.33.0
224 VERSION=1.35.0
224225 OS=$(uname -s | tr '[:upper:]' '[:lower:]')
225226 case $(uname -m) in
226227 x86_64) ARCH=amd64 ;;
from line 259
258259 
259260 ```text
260261 FROM your-base-image
261 ARG ANT_VERSION=1.33.0
262 ARG ANT_VERSION=1.35.0
262263 ARG TARGETARCH
263264 RUN ARCH=$([ "$TARGETARCH" = "arm64" ] && echo arm64 || echo amd64) && \
264265 curl -fsSL "https://github.com/anthropics/anthropic-cli/releases/download/v${ANT_VERSION}/ant_${ANT_VERSION}_linux_${ARCH}.tar.gz" \
from line 1604
16031604 listed = await mcp_session.list_tools()
16041605 agent = await client.beta.agents.create(
16051606 name="Internal tools agent",
1606 model="claude-opus-5",
1607 model="claude-opus-5-5",
16071608 tools=[
16081609 {"type": "agent_toolset_20260401"},
16091610 *[to_custom_tool(tool) for tool in listed.tools],
from line 1633
16321633 
16331634 const agent = await client.beta.agents.create({
16341635 name: "Internal tools agent",
1635 model: "claude-opus-5",
1636 model: "claude-opus-5-5",
16361637 tools: [
16371638 { type: "agent_toolset_20260401" },
16381639 // The MCP fields map one to one onto a custom tool declaration.
from line 1752
17511752 
17521753 agent, err := client.Beta.Agents.New(ctx, anthropic.BetaAgentNewParams{
17531754 Name: "Internal tools agent",
1754 Model: anthropic.BetaManagedAgentsModelConfigParams{ID: anthropic.BetaManagedAgentsModelClaudeOpus5},
1755 Model: anthropic.BetaManagedAgentsModelConfigParams{ID: anthropic.BetaManagedAgentsModelClaudeOpus5_5},
17551756 Tools: tools,
17561757 })
17571758 if err != nil {