Viewing Agent Logs

Both golem and golem-cli can be used — all commands below work with either binary.

agent invoke — Log Streaming During Invocation

By default, agent invoke streams the agent’s stdout, stderr, and log channels live while the invocation runs:

golem agent invoke <AGENT_ID> <FUNCTION_NAME> [ARGUMENTS...]

Streaming flags

These flags can be appended to any agent invoke command. For the invocation syntax itself (agent ID, function name, arguments), refer to the language-specific invocation skills.

Structured Streaming Output

Streaming commands emit multiple structured output documents, one document per event. For JSON and YAML, parse stdout as a sequence of documents, not as one array or object.

When golem or golem-cli is run with --format toon, structured stdout is emitted as a sequence of framed TOON documents:

@toon
<one TOON document>
@end

Parse stdout by splitting on exact @toon and @end marker lines. The content between them is one TOON document. In non-text formats, stderr may contain progress or diagnostic text and should not be parsed as the structured payload.

Stream events use $type: "agent.stream" and a rich event shape with common fields such as timestamp, kind, level, context, and message. Agent-facing code should branch on kind rather than parsing the message text. Typical kind values include log, stdout, stderr, stream-closed, stream-error, invocation-started, invocation-finished, and missed-messages.

Events that an invocation produced carry invocationId, in the form <agent-id>.<uuid>. Use it to tell the output of overlapping or nested invocations apart. Output written outside an invocation, for example while the agent initializes, has no invocationId. Text output prints the invocation ID before each stdout, stderr and log line, except with --logs-only.

--stream-no-log-level and --stream-no-timestamp affect only text output. In structured formats (json, yaml, toon), level and timestamp fields are always present for reliable parsing.

Examples

Disable streaming and only get the result:

golem agent invoke ... --no-stream

Clean log output without timestamps or levels:

golem agent invoke ... --stream-no-timestamp --stream-no-log-level

Show only agent-emitted output:

golem agent invoke ... --logs-only

agent stream — Live Stream an Agent’s Output

Connect to a running agent and live stream its stdout, stderr, and log channels via WebSocket. The stream reconnects automatically if the connection drops.

golem agent stream <AGENT_ID>

This is useful for observing an agent that is already running or will be invoked separately.

Flags

The <AGENT_ID> format depends on the agent’s language — refer to the language-specific invocation skills for the exact syntax.

Examples

Stream all output from an agent:

golem agent stream <AGENT_ID>

Stream only agent logs without decorations:

golem agent stream <AGENT_ID> --stream-no-timestamp --stream-no-log-level --logs-only