List broad CATEGORIES or the COMPLETE set within ONE corpus — the shape search cannot serve (search returns a ranked, capped sample, not the whole set). Requires domain. Returns every category axis with exact counts, and — with an optional filter (faceted constraints, e.g. {"spirit":"gin"}) — the COMPLETE record set scoped by it, marked complete. A count/aggregate is sound ONLY over a complete set; an incomplete return is flagged, never silently undercounted (the completeness contract). Use for "what kinds are there", "all the X", "how many X"; for one record use lookup/search. Discover a domain's facets via describe. The special domain directory enumerates the FLEET itself — the algorithm domains drillable holds (declared registry tags, faceted by class/grain; e.g. "what algorithms are there?"). Mounted corpora: acupuncture, cocktail, camera, law, copyright, trademark, music-theory, supplements, writing-style, minecraft-dungeons, spanish, medical-denials, languages, behavioral-econ, baseball, agent-practices, pokemon, mcp, readability, citations, relay, models, self-oracle, recall-traps, units, tax, physics, logic, astronomy, biology, geography, medicine, chemistry, calendar, math, eurorack, building-codes, cooking, personal-finance, stardew, coffee, electronics, physiology, diving, decibels, gearing, colorimetry, subnetting, textile-gauge, first-aid, statistics, chess-endgames, woodworking, rating-systems, tuning, check-digits, paper-sizes, wire-gauge, preferred-numbers, swe-claim-denial, roman-numerals, minecraft-mods, encodings, strength-training, hardiness-zones, terraria, unix-permissions, aspect-ratio, number-bases, resistor-color-code, braille, semver, cron, unicode, timezones, metar, incoterms, soundex, glob, ieee754, http-status, zigbee, uuid, base-encodings, percent-encoding, dms-coordinates, gray-code, hashing, classical-ciphers, hamming-code, geohash, mac-address, poker-hands, capacitor-codes, iso, dice-probability, scrabble-score, wind-chill, mach-number, saffir-simpson, dataviz, patents, chords, dtmf, shoe-size, crc, base58, bech32, base85, reed-solomon, theoretical-ecology, string-similarity, checksums, compression, prng, bloom-filter, computus, hyperloglog, peppers, search-heuristics, tomatoes, solar-times, blood-alcohol, maidenhead-locator, brewing, celestial-navigation, electrochemistry, fluid-mechanics, information-theory, structural-mechanics, regex, combinatorics, graph-algorithms, linear-algebra, psychrometrics, photographic-exposure, photometry, rf-link, screen-resolution, algorithm-complexity, color-names, type-sizes, vin, drill-bit-sizing, itu, mime-types, coding-theory, finite-automata, fourier-analysis, numerical-methods, ac-circuits, heat-transfer, markov-chains, orbital-mechanics, currency-codes, elliptic-curves, queueing-theory, totp-hotp, computational-geometry, crockford-base32, html-named-character-references, iana, thermodynamics, acoustics, magnetism, hydrostatics, gas-laws, blackbody-radiation, antenna-gain, bcp47, dimensionless-numbers, dns-record-types, midi-messages, kinematics, geometric-optics, digital-logic, convex-optimization, clothing-sizes, knitting-needle-gauge, pipe-size, winemaking-math, ansi-escape-codes, radiation-dosimetry, transmission-lines, nuclear-decay, cribbage-scoring, running-pace, dnd-math, bowling-scoring, tire-size, abn-acn, sedol-cusip, damm-verhoeff, fresnel-equations, hydrogen-spectrum, material-elasticity, pump-affinity, control-theory, em-plane-waves, ordinary-differential-equations, myrcene, posix-signals-reference, quaternions-reference, origami-flat-foldability-theorems, trailer-hitch-ball-coupler-classes, bayesian-inference, issn-check, ean-barcode, aquarium-chemistry, 3d-printing, arrow-spine, knitting-needle-sizes, bearing-sizes, camera-film-formats, horology, mechanical-vibrations, rocket-propulsion, fiber-optics, rolling-element-bearing-life, beaufort-scale, iec-60320, sae-viscosity, hat-sizes, darts-scoring, complex-numbers, boolean-algebra, game-theory, lambda-calculus, combustion-stoichiometry, bolts-screws, ham-radio-bands, miniature-scale, fracture-mechanics, torsion, catenary, standard-atmosphere, open-channel-hydraulics, gaussian-beam-optics, capillary-action, lei, fen-pgn, nmea-0183, phonetic-algorithms, lumber-grades-dimensions, film-speed-iso, telescope-optics, tabletop-rpg-probability, tcr-therapy, software-licenses, z-transform, generating-functions, terzaghi-bearing-capacity, icao, imei-reference, gs1-ai, ulid, postal-barcodes, photographic-paper-sizes, gauge-systems-industrial, fishing-line-ratings, sorting-algorithms, candle-making, pool-billiards-geometry, sourdough-ratios, electromagnetic-induction, ring-sizes, probability-distributions, isentropic-flow, fatigue-life, three-phase-power, http-headers, ghs-hazard, abrasive-grit-sizes, cycling-power-zones, group-theory, dynamic-programming-recurrences, molecular-diffusion, smtp-reply-codes, un, chain-pitch, string-gauges, sewing-pattern-grading, tabletop-wargaming-probability, aquaculture-stocking-density, polynomial-arithmetic, matrix-decompositions, nhs-number, diode-junction, elastic-collisions, pressure-vessel, reverberation-time, count-min-sketch, ieee-ethertypes, http-methods, tls-alerts, bwt-mtf, bicycle-wheel-sizing, silk-thread-nm-denier, soapmaking-lye, context-free-grammars, dc-motor-equations, usb-class-codes, punycode, film-frame-rates, aperture-f-stop-series, golf-handicap, hydroponics-nutrients, sewing-fabric-math, resin-mixing-ratios, pdf-structure, piping-water-hammer, hertzian-contact-stress, photovoltaic-cell-performance, iata-airport-delay-codes, faa, sieve-mesh-sizing, disc-golf-flight-numbers, beekeeping-hive-math, vinyl-record-cutting-specs, houseplant-light-and-watering-calc, cellular-automata-rules, error-correcting-codes-beyond-block, climbing-rope-and-anchor-ratings, knot-invariants, photovoltaic-cell-model, fiber-dispersion, osmotic-pressure-solutions, naics-sic-classification, orcid-checksum, swift-bic-format, isni-checksum, shotgun-gauge-and-choke, rope-cordage-strength-and-diameter, screen-mesh-count-and-particle-sizing, battery-cell-form-factor-codes, xor-filter, kite-line-and-wind-window, clothing-glove-size-standards, wasm-module-header, protobuf-wire-format, rankine-cycle-efficiency, projectile-ballistics-drag-corrected, aes-fips-block-parameters, voronoi-delaunay, iso15459-license-plate, np-completeness-reductions, hidden-markov-viterbi, png-ihdr-fields, mbr-partition-table, fuzzywuzzy-rapidfuzz-string-similarity-api-reference, v-belt-sprocket-sizing, go-baduk-scoring, zip-central-directory-header, curling-scoring, mahjong-hand-scoring, sudoku-difficulty-rating, dominoes-scoring, base45, typography, tides, pbkdf2, ndc, epsg, hkdf, hvac-duct-sizing, hts, elevator-rope-crane-wire-rope-classification, board-game-elo-scoring, ecfr, tide-and-moon-phase-almanac, regular-expression-derivatives, obd2-pids, emission-designators, runway-designators, qr-code, iban-structure, sewing-needle, experiment-design, scientific-method, mtg-rules, crystallography, png-chunk-type, wind-turbine-aerodynamics, rf-noise-and-link-budget, icd-10-cm, world-heritage-list-criteria, german-tax-id-checksum, cas-registry-checksum, hydraulic-hose-fitting-sizing, spectacle-frame-and-lens-sizing, beer-lambert-spectrophotometry, induction-motor-slip-torque, corrosion-rate-faraday, seebeck-thermoelectric-generation, viscosity-shear-rheology, imo-ship-number, international-code-of-signals, alcohol-proof-abv, code128-code39-barcode-checksum, usp-suture-sizing, garden-perennials, precious-metal-fineness, hop-alpha-acid-ibu, guitar-fret-spacing, juggling-siteswap, leathercraft-stitch-and-skiving, data-structure-complexity, usb-device-descriptor, ipv4-tcp-header-bitfields, cologne-phonetic-and-match-rating, needleman-wunsch-smith-waterman-alignment, billiards-collision-physics, naismith-trail, statistical-mechanics, population-genetics, electrical-transformer-turns-ratio, unicode-script-property-values, sd-card-speed-class, shipping-container-iso-6346-sizing, rebar-sizing-astm-a615, pool-spa-water-chemistry, home-canning-process-times, ceramics-glaze-chemistry, seismic-magnitude, battery-peukert-discharge, ac-skin-effect-transformer-losses, cpf-cnpj-nif-national-id-checksums, grib2-wmo-bitstream-header, aamva-drivers-license-barcode-pdf417, ntp-timestamp-format-and-leap-indicator, o-ring-sizes, npt-pipe-thread, saami-ammunition-caliber, linear-programming-simplex, clausius-clapeyron-vapor-pressure, fips, usda, orifice-venturi-flow-meter, compost-cn-ratio, beer-style-specs, archimedes-buoyancy-and-flotation, doppler-effect, compton-scattering, ipa-phonetic-alphabet, library-of-congress-classification-outline, nail-size-penny-system, book-format-folio-quarto-octavo, wine-bottle-nomenclature-volumes, garden-hose-thread-ght, wheel-bolt-pattern-pcd, stable-matching-gale-shapley, bezier-de-casteljau-splines, hall-effect, gyroscopic-precession, photoelectric-effect, combinatorial-game-theory-nim-sprague-grundy, hvac-filter-merv-rating, paper-basis-weight-system, flag-semaphore-encoding, uv-index-calc, watch-movement-ligne-sizing, model-rocket-motor-classification, cornhole-scoring, market-identifier-codes, skin-cancer-epidemiology, horseshoe-pitching-scoring, chaos-theory-fractal-dimension, thermal-expansion-coefficients, agma-gear-tooth-bending-stress, bolt-preload-torque-tension, magnetic-circuit-reluctance, merchant-category-codes, ashrae-refrigerant-designations, upu-s10-tracking-number, isrc, isil, cfi, rubiks-cube-notation-and-metrics, food-additive-e-numbers, multihash-cid, perfume-concentration-and-dilution, axe-throwing-scoring, voting-tally-methods, cheesemaking-recipe-math, canine-caloric-requirements, maritime-mid-ship-station, wcag-success-criteria, fire-hose-thread-sizing, ski-binding-din-release-setting, zipper-tooth-gauge-sizing, racket-stringing-tension-and-pattern, arrhenius-equation, larmor-radiated-power, npsh-cavitation-margin, centrifugal-fan-laws, magnus-effect, pop-rivet-sizing, michaelis-menten-enzyme-kinetics, larmor-precession, voltage-drop-conductor-sizing, grounding-electrode-resistance, chimney-stack-effect-draft, concrete-water-cement-ratio-strength, helmholtz-resonator-port-tuning, propeller-pitch-slip-thrust, pencil-lead-diameter-and-hardness-scale, hydraulic-jump-open-channel-flow, epa-air-quality-index-breakpoints, concrete-maturity-method, wet-bulb-globe-temperature-wbgt, capstan-belt-friction-equation, iala-maritime-buoyage, iau-constellation-codes, egg-size-grading, respirator-filter-class-rating, resin-identification-codes, nfpa-fire-extinguisher-classification, iucn-red-list-categories, enhanced-fujita-scale, proquint-encoding, electrical-conduit-trade-size, fishing-hook-size, weir-flow-discharge, baume-specific-gravity-converter, who, kalman-filter-and-state-estimation, coriolis-effect-deflection, schwarzschild-radius, coulombs-law-electrostatic-force, stokes-law-terminal-velocity, helical-compression-spring-rate, clothing-pattern-drop-and-suit-size-system, bowling-ball-drilling-layout, tippet-x-diameter-calculator, curie-weiss-magnetic-susceptibility, penman-monteith-reference-evapotranspiration, camera-lens-filter-thread-and-step-ring-sizing, amateur-radio-contest-scoring, optimal-stopping-theory, cherenkov-radiation-angle, zeeman-effect-splitting, josephson-junction-relation, thermal-expansion, koppen-climate-classification, modified-mercalli-intensity, malus-law-polarization, hazen-williams-pipe-flow, extended-surface-fin-heat-transfer, fillet-weld-strength, isan-check-character, iswc-check-digit, rifle-scope-moa-mrad-conversion, cvss-scoring, dicom-tag-dictionary, rayleigh-scattering-intensity, rutherford-scattering-cross-section, ais-navigation-status-message-types, nema, rfc5322-email-address-grammar, grounded-retrieval, tor-v3-onion-address, railway-signal-aspects-and-block-rules, uic-wagon-number-check-digit, asl-fingerspelling-manual-alphabet, retrieval-metrics, vehicle-stopping-distance, vcard-property-registry, nato-stanag-military-rank-codes, bip39-mnemonic-checksum, larson-miller-creep-rupture-parameter, lsh-minhash, string-matching-algorithms, icao-wake-turbulence-separation-calculator, contract-bridge-hand-evaluation, simple-machines-mechanical-advantage, led-photodiode-responsivity-and-quantum-efficiency, wind-load-structures, seawater-sound-speed, sysexits-posix-exit-codes, marc21-code-lists, fix-protocol-tag-dictionary, mutcd-traffic-sign-codes, cwe-weakness-taxonomy, nordic-personal-id-checksum, table-tennis-scoring, flywheel-kinetic-energy-storage, iec-60529-ip-code-structure, radiation-pressure, gravitational-lensing-deflection, wmo-cloud-atlas, wind-speed-averaging-conversion, FCC-NWS-SAME-event-codes-EAS, cites-appendices, transponder-squawk-codes, icd-10-pcs-code-decoder, richardson-dushman-thermionic-emission, posix-errno-codes, win32-hresult-facility-codes, basel-conv-hazard-codes, sql-sqlstate-codes, badminton-scoring, dewey-decimal-classification, mohs-hardness-scale, glasgow-coma-scale, torino-impact-hazard-scale, bortle-dark-sky-scale, textile-care-symbols-iso3758, backgammon-pip-count-and-cube, union-find-disjoint-set, quadratic-residues-jacobi-symbol, cigar-ring-gauge, surfboard-volume-calculator, seawater-sound-speed-equations, french-gauge-medical-tubing, duplicate-bridge-matchpoint-scoring, blackjack-basic-strategy-ev, rack-units, eip-55-checksum-address, iccid-sim-card-checksum, welding-rod-electrode-classification-aws, fire-sprinkler-k-factor-sizing, pinewood-derby-physics, golay-code-23-12, vexillology-flag-construction-proportions, pagerank-power-iteration, raft-consensus-safety-properties, rohs-weee-marking-symbols, ssh-key-fingerprint, woodturning-lathe-speed, table-of-consanguinity-relationship-calculator, apgar-score, mil-std-810-environmental-test-methods, colregs-navigation-rules, turntable-tonearm-alignment-geometry, roller-derby-jam-scoring, cdc-acip-immunization-schedule, gemstone-carat-weight-from-dimensions, coin-melt-value, computability-turing-machines, public-key-crypto-arithmetic, real-time-scheduling-theory, order-theory-lattices, ipv6-header-bitfields, baking-pan-volume-substitution, bicycle-spoke-length-calculation, freediving-depth-pressure-tables, croquet-and-bocce-scoring-and-legality, skip-list-probabilistic-height, merkle-tree-proof-verification, pickleball-scoring-and-rules, sound-transmission-mass-law, rfc2119-bcp14-requirement-keywords, hl7-fhir-r4-resource-type-registry, home-roasting-coffee-first-crack-development, elf-header-fields, pcap-global-header-fields, dns-header-bitfields, sec-edgar-filing-rules, falconry-jess-and-weight-management, pottery-throwing-and-clay-shrinkage, esrb-pegi-content-rating-systems, wine-appellation-classification-systems, consumer-product-recalls-policy, antitrust-merger-guidelines, rubber-plastic-shore-durometer-hardness, tea-brewing-parameters, rowing-ergometer-pace-power, fabric-gsm-areal-density-conversion, kombucha-fermentation-math, fdi-dental-tooth-numbering, precious-metal-hallmark-purity-marks, eu-vat-number-checksum, z-base-32-codec, solar-panel-tilt-poa-irradiance, specific-heat-sensible-latent-load, rxnorm-normalized-drug-names, lockpicking-pin-tumbler-tolerance, scientometrics, loinc-observation-codes, fpv-drone-motor-prop-math, kayak-canoe-hull-speed, radar-range-equation, aci-318-reinforced-concrete-flexural-capacity, supreme-court-holdings, consensus-quorum-arithmetic, tcg-deck-draw-probability, iso6709, wmo-present-weather-code, usps-pub28-abbreviations, adts-aac-frame-header, fermi-dirac-statistics, us-place-gazetteer, pickleball-equipment-specs, fmcsa-hours-of-service-limits, gdpr-administrative-fine-tiers, fmla-employee-eligibility-thresholds, butterworth-chebyshev-filter-design, hash-table-load-factor-and-collision-math, munsell-color-notation, geologic-time-scale-ics, douglas-sea-scale, palermo-impact-hazard-scale, eyring-transition-state-theory, debye-huckel-activity-coefficient, sausage-casing-diameter-standards, economic-inequality-indices, tournament-tiebreak-systems, flsa-overtime-exemption-thresholds, cpsc-childrens-product-lead-limits, fda, ramsar-wetland-designation-criteria, spirits-standards-of-identity, eeoc-charge-filing-deadlines, salometer-brine-salinity, codex-alimentarius-food-standards, nist-cybersecurity-framework, source-registry, diagnostic-ultrasound-safety-indices, tiff-image-file-directory, fx-conversion, market-structure, finite-fields, sparkfun-boards, intellijel, 2hp, make-noise, mutable-instruments, 4ms, alm-busy-circuits, bastl-instruments, fujifilm, music-thing-modular, 1010-music, after-later-audio, cosmotronic, expert-sleepers, hieroglyphic, nekyia-circuits, ohm-force, olivella-modular, rides-in-the-storm, ritual-electronics, strymon, vermona, unicode-text-segmentation, osha-permissible-exposure-limits, fmcsa-drug-alcohol-testing-thresholds, eu-reach-annex-xvii-restricted-substances, acid-rain-technology, acl-anthology, addac-system, adobe, ai-synthesis, aium, ajh-synth, alright-devices, american-diabetes-association, animal-factory-amplification, anl, atf, avalon-project-yale-law-school, befaco, behringer, bela, bmj, boredbrain-music, buchla-easel, buchla-music-easel, cbp, ccsds, cdc, centers-for-disease-control-and-prevention, centers-for-medicare-medicaid-services, clank, cleveland-clinic, coloradowic, congress, consumer-financial-protection-bureau, doepfer, dot, dublin-core-metadata-initiative, ecma-international, elra, endorphin-es, erica-synths, erogenous-tones, exa, factiverse, fao, fao-who-codex-alimentarius-commission, ffmpeg, fieldtone, fincen-gov, frap-tools, github, haken-audio, happy-nerding, herbs-and-stones, hexinverter-electronique, hhs, hl7, hl7-international, ietf, instruo, intergovernmental-panel-on-climate-change, internal-revenue-service, international-agency-for-research-on-cancer, international-internet-preservation-consortium, international-olympic-committee, iowadot, jomox, joranalogue-audio-design, justice, klavis, koma-elektronik, lacounty, ladik, library-of-congress, little-green-cheese, man7, medlineplus, medlineplus-nih-nlm, meng-qi, milk-and-magic, misco, modbap-modular, nasa, nasa-science, national-institute-of-standards-and-technology, national-physical-laboratory, national-weather-service, ncsu, netl-flow-science-software-support, nga, nhlbi-nih, nih, nist, nmsu-cooperative-extension, noise-engineering, nortonva, office-of-the-law-revision-counsel-u-s-house-of-representatives, olivia-artz-modular, omnitone, oregon-state-university-extension-service, orvis, osha, outdoornebraska, oxi-instruments, par-nsf-gov, pittsburgh-modular, pladask-elektrisk, plum-audio, portland-gov, publications-office-of-the-european-union, pulp-logic, purdue, qu-bit-electronix, rabid-elephant, rare-waves, rfc-editor, riverwoods, rossum-electro-music, santaclaracounty, schema-org, schlappi-engineering, setonix-synth, shakmat-modular, singapore-pools, sitemaps-org, skybrary, sound-machines, sparkfun-electronics, squarp-instruments, stanford, steady-state-fate, supreme-court-of-the-united-states, synthesis-technology, texas-commission-on-environmental-quality, tiptop-audio, transportation, u-s-census-bureau, u-s-department-of-justice, u-s-department-of-justice-civil-rights-division, u-s-food-and-drug-administration, u-s-geological-survey, u-s-preventive-services-task-force, unicode-consortium, universaldependencies, us-citizenship-and-immigration-services, us-epa, usenix, usgs, ut-southwestern-medical-center, verbos-electronics, w3, w3c, westlicht, whatwg, whimsical-raps-mannequins, whole-building-design-guide-nibs, wmd, wolfram-llm-mcp-integration, xaoc-devices.