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Karthik Kalyan
926a5e7c6a
* otel: explicit traceparent injection + linked-trace mode for bounded per-invocation traces
- Add WORKFLOW_TRACE_MODE ('linked' default, 'continuous' legacy) to the
workflow and step queue handlers. In linked mode, WORKFLOW_V2/STEP spans
start a new trace root with span links to the incoming delivery context
and the run-origin context, and re-enqueued messages forward the
ORIGINAL run-origin trace carrier unchanged.
- world-vercel now explicitly injects W3C traceparent/tracestate/baggage
headers on outgoing workflow-server HTTP requests from inside the
client span (no-op without an OTEL SDK registered).
- New workflow.trace.mode span attribute; unit tests for both modes and
for header injection.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* changeset: call out behavioral telemetry changes of the linked default
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* docs: add v5 observability tracing page
Documents OTEL spans/attributes, linked trace mode and WORKFLOW_TRACE_MODE,
span links, context propagation, and the v4 behavior-change callout.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* otel: human-friendly span names for workflow and step spans
WORKFLOW_V2/STEP prefixes with full machine names (workflow//./src/...//fn)
become workflow.execute / step.execute / workflow.start with the short
function name. New workflowDisplayName/stepDisplayName helpers in
@workflow/utils handle both raw and queue-sanitized name forms; full names
remain in the workflow.name/step.name attributes.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* changeset: merge span-name and linked-trace notes into one changeset
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* docs: update trace-shape prose to renamed span names
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* docs: replace ascii trace diagram with mermaid
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* address review: empty carriers, shared trace helpers, mode warning, name edge cases, consumer span kind
- Treat an empty ({}) trace carrier as absent everywhere the trace-mode
logic branches, so linked mode falls back to a fresh origin instead of
forwarding a useless {} forever; workflow.trace.propagated now reports
whether a usable carrier arrived.
- Extract the duplicated linked-mode logic into shared telemetry helpers
getNextTraceCarrier() and buildInvocationSpanLinks(), used by both the
workflow and step queue handlers; resume-hook now uses
linkToTraceCarrier (gaining the isSpanContextValid guard).
- Warn once per distinct unrecognized WORKFLOW_TRACE_MODE value instead
of silently selecting linked.
- shortNameFromSanitized: map default/__default to the module short name
(mirroring parseName) and document the `$`-sanitization limitation.
- Queue-delivered workflow.execute spans now use the CONSUMER span kind,
matching queue-delivered step.execute spans; docs span table and
changeset updated accordingly.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>