Observability for repair and sessions

Usage and sessions

• /usage in the TUI and veyyon stats on the CLI: token and usage views
• Status line token accounting (token_*, context_pct, cost)
• Coding-agent structured logger

OpenTelemetry

When OTEL_EXPORTER_OTLP_ENDPOINT or OTEL_EXPORTER_OTLP_TRACES_ENDPOINT is set, the process registers an OTLP/protobuf trace exporter and exports agent-loop spans (invoke_agent, chat, execute_tool, …). Standard OTEL_* env vars apply (OTEL_SERVICE_NAME, headers, OTEL_SDK_DISABLED, OTEL_TRACES_EXPORTER=none). Transport is http/protobuf only. See packages/coding-agent/src/telemetry-export.ts.

Related

• Observability
• Repair cascade