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Add CMA claude-api skill updates (#1164)

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* Add Managed Agents self-hosted sandboxes + mid-session agent updates + MCP tool-output offload to claude-api skill

Self-hosted sandboxes: new shared/managed-agents-self-hosted-sandboxes.md for config:{type:"self_hosted"} — agent loop on Anthropic's orchestration, tool execution on customer infra via outbound-polling worker. Covers EnvironmentWorker.run()/.run_one() (Py/TS), ant beta:worker poll/run, mid-level work.poller()/WorkPoller (Py/TS/Go only; Go has no auto_stop opt-out), AgentToolContext/beta_agent_toolset/tool_runner(), monitoring (environments.work.stats/stop — x-api-key, call from outside worker host), runtime deps, cloud-vs-self_hosted delta table, credentials, security ownership split. Cross-refs in environments.md, overview.md (Reading Guide + rewrote cloud-only pitfall), api-reference.md (SDK row + naming-quirks + schema + work REST rows), tools.md (Who-runs-it carve-out), onboarding.md, live-sources.md.

Mid-session agent updates: sessions.update(session_id, agent={tools, mcp_servers}, vault_ids=[...]) — session-local override (doesn't bump agent version), full-replacement semantics, session must be idle. New core.md section + pointers in tools.md, api-reference.md (UpdateSession row), overview.md.

Large MCP tool outputs → files: >100K tokens → automatic offload to sandbox file; agent gets truncated preview + path. Plus: invalid vault credentials don't block sessions.create() — session.error event fires, auth retries on next idle→running. Both in tools.md.

* Point ant CLI install ref to live-sources.md (OSS has no anthropic-cli.md)
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Lance Martin
2026-05-19 07:11:06 -07:00
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parent 6a5bb06904
commit 690f15cac7
8 changed files with 218 additions and 8 deletions
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skills/claude-api/shared/managed-agents-onboarding.md
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@@ -8,11 +8,11 @@ Use this when a user wants to set up a Managed Agent from scratch. Three steps:
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Claude Managed Agents is a hosted agent: Anthropic runs the agent loop on its orchestration layer and provisions a sandboxed container per session where the agent's tools execute. You supply the agent config and the environment config; the harness — event stream, sandbox orchestration, prompt caching, context compaction, and extended thinking — is handled for you.
Claude Managed Agents is a hosted agent: Anthropic runs the agent loop on its orchestration layer and provisions a sandboxed container per session where the agent's tools execute (or, with a `self_hosted` environment, your own worker runs the tools — see `shared/managed-agents-self-hosted-sandboxes.md`). You supply the agent config and the environment config; the harness — event stream, sandbox orchestration, prompt caching, context compaction, and extended thinking — is handled for you.
**What you supply:**
- **An agent config** — tools, skills, model, system prompt. Reusable and versioned.
- **An environment config** — the sandbox your agent's tools execute in (networking, packages). Reusable across agents.
- **An environment config** — the sandbox your agent's tools execute in (`cloud`: networking, packages; or `self_hosted`: your own infra). Reusable across agents.
Each run of the agent is a **session**.