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Propagate trace context for persisted workflow requests - #6783

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tim-smart merged 3 commits into
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agent/codex-engineer/38eb21df
Jul 30, 2026
Merged

Propagate trace context for persisted workflow requests#6783
tim-smart merged 3 commits into
mainfrom
agent/codex-engineer/38eb21df

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@tim-smart

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Summary

  • forward the current workflow span's traceId, spanId, and sampled fields through ClusterWorkflowEngine.sendDiscard
  • add a regression test covering the persisted durable-deferred request envelope

Root cause

sendDiscard created persisted workflow request envelopes without the tracing fields already supported by the envelope and storage protocol. This broke trace parenting after the request crossed message storage and reached the workflow runner.

Validation

  • pnpm vitest run packages/effect/test/cluster/ClusterWorkflowEngine.test.ts
  • pnpm --dir packages/effect check
  • pnpm exec oxlint -f unix packages/effect/src/unstable/cluster/ClusterWorkflowEngine.ts packages/effect/test/cluster/ClusterWorkflowEngine.test.ts
  • pnpm exec dprint check packages/effect/src/unstable/cluster/ClusterWorkflowEngine.ts packages/effect/test/cluster/ClusterWorkflowEngine.test.ts

Closes EFF-232
Closes #6779

@github-project-automation github-project-automation Bot moved this to Discussion Ongoing in PR Backlog Jul 30, 2026
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changeset-bot Bot commented Jul 30, 2026

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🦋 Changeset detected

Latest commit: d47bc42

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 29 packages
Name Type
effect Patch
@effect/opentelemetry Patch
@effect/platform-browser Patch
@effect/platform-bun Patch
@effect/platform-deno Patch
@effect/platform-node-shared Patch
@effect/platform-node Patch
@effect/vitest Patch
@effect/ai-anthropic Patch
@effect/ai-openai-compat Patch
@effect/ai-openai Patch
@effect/ai-openrouter Patch
@effect/atom-react Patch
@effect/atom-solid Patch
@effect/atom-vue Patch
@effect/sql-clickhouse Patch
@effect/sql-d1 Patch
@effect/sql-libsql Patch
@effect/sql-mssql Patch
@effect/sql-mysql2 Patch
@effect/sql-pg Patch
@effect/sql-pglite Patch
@effect/sql-sqlite-bun Patch
@effect/sql-sqlite-do Patch
@effect/sql-sqlite-node Patch
@effect/sql-sqlite-react-native Patch
@effect/sql-sqlite-wasm Patch
@effect/docgen Patch
@effect/openapi-generator Patch

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@effect-slopcop effect-slopcop Bot added 4.0 bug Something isn't working labels Jul 30, 2026

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✅ No new issues found.

Reviewed changes

  • Propagate trace context in sendDiscardEnvelope.makeRequest now receives traceId, spanId, and sampled from the current span, matching the existing pattern in Entity.ts and Sharding.ts.
  • Regression test — a new it.effect test instruments the WorkflowEngine.deferredDone span, drives a deferred completion, and asserts the persisted request envelope carries matching tracing fields.

Pullfrog  | View workflow run | Using DeepSeek Pro (free via Pullfrog for OSS) (Kimi K2 not used — the program covers this model; add its provider key to run your pick) | 𝕏

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github-actions Bot commented Jul 30, 2026

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Bundle Size Analysis

Generated from PR build output; treat the content below as untrusted.

File Name Current Size Previous Size Difference
basic.ts 6.63 KB 6.63 KB 0.00 KB (0.00%)
batching.ts 9.42 KB 9.42 KB 0.00 KB (0.00%)
brand.ts 6.31 KB 6.31 KB 0.00 KB (0.00%)
cache.ts 10.12 KB 10.12 KB 0.00 KB (0.00%)
config.ts 20.04 KB 20.04 KB 0.00 KB (0.00%)
differ.ts 19.93 KB 19.93 KB 0.00 KB (0.00%)
http-client.ts 20.94 KB 20.94 KB 0.00 KB (0.00%)
logger.ts 10.28 KB 10.28 KB 0.00 KB (0.00%)
metric.ts 8.55 KB 8.55 KB 0.00 KB (0.00%)
optic.ts 7.33 KB 7.33 KB 0.00 KB (0.00%)
pubsub.ts 14.26 KB 14.26 KB 0.00 KB (0.00%)
queue.ts 11.09 KB 11.09 KB 0.00 KB (0.00%)
schedule.ts 10.27 KB 10.27 KB 0.00 KB (0.00%)
schema-class.ts 18.86 KB 18.86 KB 0.00 KB (0.00%)
schema-fromJsonSchemaDocument.ts 28.67 KB 28.67 KB 0.00 KB (0.00%)
schema-representation-roundtrip.ts 24.99 KB 24.99 KB 0.00 KB (0.00%)
schema-string-transformation.ts 12.95 KB 12.95 KB 0.00 KB (0.00%)
schema-string.ts 10.65 KB 10.65 KB 0.00 KB (0.00%)
schema-template-literal.ts 14.85 KB 14.85 KB 0.00 KB (0.00%)
schema-toArbitraryLazy.ts 21.66 KB 21.66 KB 0.00 KB (0.00%)
schema-toCodeDocument.ts 24.08 KB 24.08 KB 0.00 KB (0.00%)
schema-toCodecJson.ts 18.91 KB 18.91 KB 0.00 KB (0.00%)
schema-toEquivalence.ts 18.73 KB 18.73 KB 0.00 KB (0.00%)
schema-toFormatter.ts 18.59 KB 18.59 KB 0.00 KB (0.00%)
schema-toJsonSchemaDocument.ts 22.33 KB 22.33 KB 0.00 KB (0.00%)
schema-toRepresentation.ts 19.25 KB 19.25 KB 0.00 KB (0.00%)
schema.ts 18.12 KB 18.12 KB 0.00 KB (0.00%)
stm.ts 12.05 KB 12.05 KB 0.00 KB (0.00%)
stream.ts 9.37 KB 9.37 KB 0.00 KB (0.00%)

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✅ No new issues found.

Reviewed changes

  • Narrowed persisted workflow envelope type — changed test assertion from assert(envelope) to assert(envelope?._tag === "Request") so the Envelope<any> union is properly narrowed to Request<any> via the _tag discriminant, making traceId/spanId/sampled accessible without type errors.
  • Added changeset — documented the trace context propagation fix as an effect patch.

Pullfrog  | View workflow run | Using DeepSeek Pro (free via Pullfrog for OSS) (Kimi K2 not used — the program covers this model; add its provider key to run your pick) | 𝕏

@tim-smart
tim-smart merged commit 24e0e93 into main Jul 30, 2026
17 checks passed
@tim-smart
tim-smart deleted the agent/codex-engineer/38eb21df branch July 30, 2026 19:41
@github-project-automation github-project-automation Bot moved this from Discussion Ongoing to Done in PR Backlog Jul 30, 2026
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4.0 bug Something isn't working

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ClusterWorkflowEngine drops trace context on persisted workflow requests

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