Braided line running through a rod guide with a wet leader connection under raking light

Hook the Horizon · field instrument

One chain.
The weakest supported link
decides.

Start with the job — the water, the fish, the flow, the landing problem — then work backward through rod, reel, line, leader, connection and presentation. Declared ratings govern. Conflicts stay visible. Missing specifications stay unknown.

Open the console Full evaluate

Local-first · no locations collected · educational evaluation only

River
Current load, precision, abrasion, landing in flow
Lake
Depth change, vegetation, wind, search vs static
Ocean · Inshore
Salt corrosion, tide, structure abrasion, stronger fish
Deep-sea · Offshore
Continuous drag, capacity, depth, big-game loads

Quick-start situations

Presets fill the job and the chain. Every figure remains editable and attributable to you.

Step 01 — the job

Situation console

Start with the job, not the gear. What you enter here re-orders which links and which risks surface first.

Water type

Target / pressure classSets the pressure band, not a species guaranteeCover / structureDecides the abrasion requirementCurrent / tide / windContinuous load on top of the fishCasting distanceDistance vs precision trade-offDepth bandDepth changes line behaviour before the fish doesRetrieval pathHow the presentation travelsLanding problemPeak load happens at the shortest lineOperational burden toleranceRetie speed, cold hands, guide frictionPresentation weight (oz)Left blank stays unknown — nothing is inferred.

No exact locations are requested or stored. Everything stays in this browser.

Step 02 — fast path

Major components

Live preview

System name

Rod power

Declared on the blankRod action

Rod length (ft)

Declared line rating (lb)

Min / max as printedDeclared lure rating (oz)

Min / max as printedMain line type

Main line strength (lb)

Declared max drag (lb)

The figures above are declared manufacturer ratings, entered accurately. I will still physically inspect the gear before fishing.

Continue to full evaluate

Awaiting inputs

The card appears once the job and the line are stated

A water type and a main line strength are the minimum needed to say anything honest. Nothing is estimated to fill the gap in the meantime.

· Water type
· Main line strength
· Rod power
· Declared max drag

Runs (0)

A run freezes the current job and chain so it can be replayed and compared.