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opentelemetry changedmanage-claude/opentelemetry

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Recorded edits3to this page, all time

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4545| --------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------ |
4646| [Messages API](https://platform.claude.com/docs/en/api/messages/create) requests | ✅ | ✅ | ✅ |
4747| [Sessions API](https://platform.claude.com/docs/en/managed-agents/sessions) requests | ✅ | ✅ | ✅ |
48| [Token usage](https://platform.claude.com/docs/en/manage-claude/opentelemetry#count-tokens) | ✅ | ✅ | ✅ |
48| [Token counts](https://platform.claude.com/docs/en/manage-claude/opentelemetry#count-tokens) | ✅ | ✅ | ✅ |
4949| Each model run within a request | — | ✅ | ✅ |
5050| [Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview) turns | — | ✅ | ✅ |
5151| [Server tools](https://platform.claude.com/docs/en/agents-and-tools/tool-use/server-tools), run by the API | — | ✅ | ✅ |
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132132 
133133### Content limits
134134 
135With Full content, each span holds up to 0.75 MB of content by default. That fits a 200k-token context window of English text and stays below the 1 MB request limit of many observability platforms and proxies. If you choose a partner platform as the **Provider**, the Console sets a limit that the platform accepts.
135With Full content, each span holds up to 0.75 MB of content by default. That fits a 200k-token context window of English text and stays below the 1 MB request limit of many observability platforms and proxies. If you select a partner platform as the **Provider**, the Console sets a limit that the platform accepts.
136136 
137137When content is over the limit, the SDK or the API shortens it and sets `anthropic.content.truncated` to `true`. Request spans drop the system prompt and the earliest messages first, and tool spans drop blocks from the end of the result. Images and documents appear only as their type.
138138 
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1821826. The session tool runner runs `list_issues` (shown as the `anthropic.custom_tool_use list_issues` span) and sends its result by calling `sessions.events.send`.
1831837. A second turn starts with the tool result (shown as the last `anthropic.session.turn` span).
184184 
185![Example trace of a Managed Agents session: your POST /chat span, the event stream and event list requests of the session tool runner, the client and server spans for the request that sends the user message, a turn with model requests, a bash tool use and a turn on another thread, the runner running list\_issues, the client and server spans for the request that sends the tool result, and a second turn.](https://platform.claude.com/docs/images/opentelemetry-trace-shape.svg)
185![Example Managed Agents session trace: POST /chat, four session event requests, three turns, a bash tool use, and list\_issues](https://platform.claude.com/docs/images/opentelemetry-trace-shape.svg)
186186 
187187The SDK in your application emits the [`anthropic.custom_tool_use`](https://platform.claude.com/docs/en/api/opentelemetry/spans#anthropic-tool-use-anthropic-mcp-tool-use-and-anthropic-custom-tool-use) span and each request's client span. To get these spans, [set up SDK tracing](https://platform.claude.com/docs/en/manage-claude/opentelemetry/sdk).
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