# Trajectory: autofix-swarm-Agentworkforce-relaycast-workflow

> **Status:** ✅ Completed
> **Task:** 30d46faa190e4e2122907f54
> **Confidence:** 90%
> **Started:** April 17, 2026 at 08:51 AM
> **Completed:** June 3, 2026 at 03:28 AM

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## Summary

Reviewed PR #159 SDK v8 contract changes. Fixed outbound subscription delivery to discard caller-supplied reserved Relay headers case-insensitively before setting canonical Content-Type, X-Relay-Event, X-Relay-Timestamp, and signature headers; added conformance coverage for spoofed reserved headers. Verified engine and repo test/build/lint targets.

**Approach:** Standard approach

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## Key Decisions

### Fix outbound subscription header precedence
- **Chose:** Fix outbound subscription header precedence
- **Reasoning:** PR docs state Relay's Content-Type and X-Relay-* headers take precedence, but deliverEvent spread custom headers after construction order would allow caller-supplied reserved headers to override canonical delivery metadata unless normalized explicitly.

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## Chapters

### 1. Planning
*Agent: orchestrator*

### 2. Execution: init-msd-dir, read-context
*Agent: orchestrator*

### 3. Convergence: init-msd-dir + read-context
*Agent: orchestrator*

- init-msd-dir + read-context resolved. 2/2 steps completed. All steps completed on first attempt. Unblocking: fast-plan.

### 4. Execution: fix-worker-1-step
*Agent: fix-worker-1*

### 5. Execution: verify-and-finalize
*Agent: verifier*

- Fix outbound subscription header precedence: Fix outbound subscription header precedence
- Engine conformance tests exposed missing local package builds first; after building workspace dependencies, PR behavior passed. Added one targeted fix for case-insensitive reserved outbound delivery header precedence and covered it in sdk-contract.
