# Spectral Consult > A spec-routed, measurement-backed reasoning surface over the open spectral-branding > corpus. Bring a business DECISION; it routes to what to read and which instrument to > run, and abstains when the evidence is below the floor. A structured way to ORGANIZE > a decision (sibling of the Brand Spectrometer, which MEASURES). ## Machine surface - [Manifest](https://consult.orgschema.com/consult.json): the decision taxonomy — fetch this first. - Specs: https://consult.orgschema.com/specs/.md — the full routing spec per decision. ## Decisions (route by the decision, not the topic) - diagnose-perception (SBT) — diagnose a brand's perception and find gaps across audiences. - reach-an-audience (SBT) — reach a perceptual cohort that has no mailing address. - specify-operations (OST) — specify or stress-test an operating model. - decide-investment (OST) — decide where to invest across tiers; evaluate a business case. - evaluate-ma (SBT+OST) — evaluate an acquisition or merger for perceptual and operating fit. ## Instruments - [Brand Spectrometer](https://meter.spectralbranding.com): the runnable measurement instrument. ## Human guide - [How to read it](https://consult.orgschema.com/how-to-read): floors vs signals, the four verdicts, the route. - [A worked case](https://consult.orgschema.com/case): an acquisition-fit decision end to end — a measured finding plus an honest abstention (substrate-conditional verdict).