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-# OpenTelemetry Implementation
-
-## POC Tasks (Phase 1 - Core Infrastructure)
-
-- [x] Write plan to tasks/todo.md
-- [x] Task 0: Create Docker observability stack (docker-compose, otel-collector-config, grafana datasource)
-- [x] Task 1: Add OpenTelemetry C++ SDK dependency (conanfile.py + CMakeLists.txt + XrplCore.cmake)
-- [x] Task 2: Create Core Telemetry interface (Telemetry.h, SpanGuard.h, NullTelemetry.cpp)
-- [x] Task 3: Implement OTel-backed TelemetryImpl and TelemetryConfig
-- [x] Task 5: Create instrumentation macros (TracingInstrumentation.h)
-- [x] Task 4: Integrate Telemetry into Application lifecycle (ServiceRegistry.h, Application.cpp, xrpld-example.cfg)
-- [x] Task 6: Instrument RPC ServerHandler
-- [x] Task 7: Instrument RPC command execution (RPCHandler)
-- [ ] Task 8: Build, run, and verify end-to-end (manual)
-- [ ] Task 9: Document POC results and next steps (manual)
-
-## Phase 2 Tasks (RPC Tracing Completion)
-
-- [x] Task 2.2: Add XRPL_TRACE_PEER and XRPL_TRACE_LEDGER macros
-- [x] Task 2.3: Add shouldTraceLedger() to Telemetry interface + all implementations
-- [x] Task 2.5: Enhanced RPC span attributes (duration_ms, error_message)
-- [x] Task 2.4: Unit test for telemetry config parser (TelemetryConfig_test.cpp)
-- [ ] Task 2.6: Build verification
-
-## Phase 3 Tasks (Transaction Tracing) — see OpenTelemetryPlan/Phase3_taskList.md
-## Phase 4 Tasks (Consensus Tracing) — see OpenTelemetryPlan/Phase4_taskList.md
-## Phase 5 Tasks (Documentation & Deployment) — see OpenTelemetryPlan/Phase5_taskList.md
-
-## Dependency Order
-- Tasks 0, 1 (parallel, no deps)
-- Tasks 2, 5 (parallel, after 1)
-- Task 3 (after 1, 2)
-- Task 4 (after 2, 3)
-- Tasks 6, 7 (parallel, after 4, 5)
-
-## Key Design Decisions
-- New CMake module: `add_module(xrpl telemetry)` in XrplCore.cmake
-- `#ifdef XRPL_ENABLE_TELEMETRY` guards OTel SDK types in interface headers
-- NullTelemetry always compiles; TelemetryImpl only when OTel SDK available
-- Macros expand to `((void)0)` when disabled
-- Section::value_or<T> used for config parsing (matches existing patterns)
-- getTelemetry() added to ServiceRegistry (not Application.h) since it's a service accessor
-
-## New Files Created
-| File | Purpose |
-|------|---------|
-| docker/telemetry/docker-compose.yml | OTel Collector + Jaeger + Grafana stack |
-| docker/telemetry/otel-collector-config.yaml | Collector receivers/processors/exporters |
-| docker/telemetry/grafana/provisioning/datasources/jaeger.yaml | Grafana Jaeger datasource |
-| include/xrpl/telemetry/Telemetry.h | Abstract Telemetry interface + Setup struct |
-| include/xrpl/telemetry/SpanGuard.h | RAII span guard (OTel-enabled only) |
-| src/libxrpl/telemetry/NullTelemetry.cpp | No-op implementation (always compiles) |
-| src/libxrpl/telemetry/TelemetryConfig.cpp | Config parser (setup_Telemetry) |
-| src/libxrpl/telemetry/Telemetry.cpp | OTel SDK implementation (OTel-enabled only) |
-| src/xrpld/telemetry/TracingInstrumentation.h | XRPL_TRACE_* convenience macros |
-
-## Modified Files
-| File | Changes |
-|------|---------|
-| conanfile.py | Added `telemetry` option + opentelemetry-cpp dependency |
-| CMakeLists.txt | Added `telemetry` option + find_package + compile definition |
-| cmake/XrplCore.cmake | Added `telemetry` module + conditional OTel linking |
-| include/xrpl/core/ServiceRegistry.h | Added getTelemetry() pure virtual + forward decl |
-| src/xrpld/app/main/Application.cpp | Added telemetry_ member, init, start/stop, accessor |
-| src/xrpld/rpc/detail/ServerHandler.cpp | Added XRPL_TRACE_RPC to onRequest, processRequest, WS |
-| src/xrpld/rpc/detail/RPCHandler.cpp | Added per-command tracing in callMethod |
-| cfg/xrpld-example.cfg | Added [telemetry] config section documentation |
-
-## Expected Trace Hierarchy
-```
-rpc.request  (HTTP entry point - ServerHandler::onRequest)
-  └── rpc.process  (ServerHandler::processRequest)
-        └── rpc.command.<name>  (RPCHandler::callMethod)
-              xrpl.rpc.command = "account_info"
-              xrpl.rpc.version = 2
-              xrpl.rpc.role = "user"
-              xrpl.rpc.status = "success"
-```