Joe Savona 3cd64c8d7c Preserve MCP trace context when tracing is disabled (#60506) ...

## Why

MCP requests need to retain inbound W3C trace context even when no OpenTelemetry tracing layer is installed.

## What changed

- Carry validated request trace context through app-server MCP tasks, connection startup, and resource listing tasks, while preferring active span context.
- Forward fallback `traceparent` and `tracestate` headers for MCP HTTP requests, including discovery and initialization.
- Use HTTP trace headers as a fallback for exec-server RPC calls when active span context is unavailable.

## Testing

Add an app-server integration test that disables trace exporting and verifies that `mcpServer/resource/read` forwards the inbound `traceparent` and `tracestate` to the MCP server.

GitOrigin-RevId: c886a55ce0a3992f1b2e04614efec80a20cb4b49

2026-11-10 03:01:14 +00:00

..

auth_storage

Add bounded credential-storage telemetry helpers (#47901)

2026-09-24 18:08:31 +00:00

events

Derive sandbox telemetry labels directly from permission profiles (#60500)

2026-11-10 02:31:50 +00:00

metrics

Add metrics for incremental exec catalog updates (#60177)

2026-11-07 22:38:11 +00:00

agent_response.rs

Add opt-in output token replay for OpenAI requests (#52742)

2026-10-10 01:25:00 +00:00

auth_storage_tests.rs

Add bounded credential-storage telemetry helpers (#47901)

2026-09-24 18:08:31 +00:00

auth_storage.rs

Add bounded credential-storage telemetry helpers (#47901)

2026-09-24 18:08:31 +00:00

config.rs

Support managed OpenTelemetry metadata and PEM client identities (#57658)

2026-10-28 06:24:24 +00:00

guardian_assessment.rs

Add opt-in OTLP logging for Guardian assessments (#47870)

2026-09-24 16:06:07 +00:00

lib.rs

Preserve MCP trace context when tracing is disabled (#60506)

2026-11-10 03:01:14 +00:00

network_policy.rs

Enforce application network policy for AWS auth and telemetry (#47408)

2026-09-23 00:47:34 +00:00

otlp.rs

Support managed OpenTelemetry metadata and PEM client identities (#57658)

2026-10-28 06:24:24 +00:00

provider_shutdown_tests.rs

Prepare the telemetry shutdown worker during initialization (#39050)

2026-08-17 19:06:53 +00:00

provider.rs

Support managed OpenTelemetry metadata and PEM client identities (#57658)

2026-10-28 06:24:24 +00:00

skill_invocation.rs

Export skill invocation events through OpenTelemetry (#49689)

2026-09-30 17:45:25 +00:00

targets.rs

chore(otel): reorganize codex-otel crate (#13800)

2026-03-06 14:58:18 -08:00

tool_result_tests.rs

Make tool-result telemetry limits configurable (#39779)

2026-08-20 19:09:04 +00:00

tool_result.rs

Attribute tool telemetry to the invoking turn's product SKU (#47741)

2026-09-24 04:10:08 +00:00

trace_context.rs

Preserve MCP trace context when tracing is disabled (#60506)

2026-11-10 03:01:14 +00:00