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The Kermadec Trench · MD-UTIL

Kermadec

Deep, remote, serious. A fleet for data engineering.

A fleet of small, sharp tools for data engineering. Each ship carries one leg of the MD-UTIL thesis: open transport, machine-readable shape, idempotent transformation, portable orchestration. Marlinspike seamanship — knots, hitches, splices, rigging — as the shared vocabulary. Precision craft, not romance of the sea.

The chain of command · one breath

Reef holds the truth. Marl defines the units. Bosun sequences them. Icebreaker moves the results.

The Fleet

Transport $ icebrk

Icebreaker

Arrow-native movement. The vessel that opens the lane.

Open transport →

Ontology / Shape $ reef

Reef

SHACL shapes, disciplined and secure. Binds correctly or fails visibly.

Machine-readable shape →

Transformation $ marl

Marl

The _IFT engine. Each hitch knotted independently — one failure doesn't unravel the run.

Idempotent transformation →

Orchestration DSL $ bosun

Bosun

Declare chunking intent once. Emits Temporal, Airflow, or Dagster.

Portable orchestration →

Reserve Names

Unassigned. In the pool.

Sextant Profiling / introspection

Fathom Data profiling

Stevedore _SRC ingestion tooling

Meridian Reference / master data

Drydock Dev / sandbox environments

Frap Optimizer / compactor

Waypoint Versioning / checkpointing

Leadline Validation (backup if Reef expands)

Careen Refactoring tooling

Belay Commit / cancel, materialization

Hitch Connectors / adapters

Methodology

Idempotent Structured Transformation of Data — the ISTD methodology, contrasted with medallion architecture.

Read: ISTD vs Medallion →