Communication Engineering Tooling Upgrade Report

Status: completed Date: 2026-09-20

Baseline

• Rollback tag: communication-engineering-pre-modernization-2026-09-20
• Starting SHA: b90fefcd193a28d582c3c14b5a80dabbed2892b1
• Protected corpus hash inventory: docs/modernization/protected-corpus.sha256

ROS

• Before: legacy ROS 1.0.0 installation
• After: ROS 3.0.3 lifecycle installation
• Legacy package identity compatibility shim used: false
• Current lifecycle manifest: .echelon/ros.json
• Legacy snapshot remains available at .ros/installation.json.

Research Publisher

• Before: GitHub source dependency, pre-manifest lifecycle shape
• After: released @echelon-foundry/research-publisher@0.1.0
• Current lifecycle manifest: .echelon/research-publisher.json

Research preservation

The SHA-256 inventory for research/**, missions/**, and the comparative-writing source prompt matched before and after migration.

No canonical research content was changed by the tooling modernization.

Verification

Completed successfully:

• legacy baseline ROS validation
• research validate/build
• ROS 3.0.3 upgrade dry-run and apply
• ROS registry build/check/validate and lifecycle verify
• Research Publisher lifecycle adoption/upgrade
• Research Publisher inventory/validate/build and strict verify
• protected-corpus comparison

Scope

This modernizes tooling only. It does not promote theory, accept review-stage research, or claim Communication Engineering is a validated universal discipline.

Next mission

Build and test the evidence-bounded operational context described in docs/communication-engineering-modernization-baseline.md.

Publisher finalization note

The legacy unscoped research-publisher dependency was removed. The repository now has one publisher authority: @echelon-foundry/research-publisher@0.1.0.

The legacy pre-manifest adoption path required forced manifest convergence after the lifecycle tool had already applied its shared scripts/artifacts. The resulting .echelon/research-publisher.json was then verified successfully with verify --strict.

Temporary migration-only workflow/helper files were removed before merge.