{
  "id": "PC-BEACH-COMMONS-V18-ENGINEERING",
  "title": "ENG/25",
  "subtitle": "The Engineering Catalog",
  "dek": "A command-line field guide to the engineering capabilities, proof habits, qualification gates, and public learning doors inside the El Segundo-centered Radius 25.",
  "url": "https://pointcast.xyz/beach-commons/v18/engineering",
  "jsonUrl": "https://pointcast.xyz/beach-commons/v18/engineering.json",
  "blockUrl": "https://pointcast.xyz/b/0551",
  "fieldStudy": "018.B",
  "publishedAt": "2026-08-01",
  "updatedAt": "2026-08-01T01:45:00-07:00",
  "center": "El Segundo, California",
  "radius": "roughly 25 straight-line miles",
  "status": "Independent editorial capability index and browser-local planning instrument. It is not a directory of people, firms, available facilities, jobs, procurement opportunities, qualified professionals, or approved work.",
  "premise": "A regional engineering advantage is not a list of company names. It is the ability to locate the right capabilities, make interfaces explicit, cross qualification gates, and carry evidence from question through maintenance and closeout.",
  "layers": [
    {
      "id": "architecture",
      "code": "ARCH",
      "title": "Architecture",
      "description": "Frame the mission, requirements, interfaces, decisions, and configuration."
    },
    {
      "id": "matter",
      "code": "MAT",
      "title": "Matter",
      "description": "Shape structures, mechanisms, materials, heat, fluids, and production."
    },
    {
      "id": "signal",
      "code": "SIG",
      "title": "Signal",
      "description": "Power, sense, communicate, compute, control, and fail safely."
    },
    {
      "id": "field",
      "code": "FLD",
      "title": "Field",
      "description": "Work with sites, water, coasts, infrastructure, chemistry, and living conditions."
    },
    {
      "id": "proof",
      "code": "PRF",
      "title": "Proof",
      "description": "Measure, inspect, test, verify, validate, and name uncertainty."
    },
    {
      "id": "operations",
      "code": "OPS",
      "title": "Operations",
      "description": "Move, commission, maintain, repair, retire, and return."
    }
  ],
  "capabilities": [
    {
      "id": "systems",
      "code": "SYS.ARCH",
      "layer": "architecture",
      "title": "Systems architecture + interfaces",
      "summary": "Turn a broad mission into requirements, interfaces, states, budgets, decisions, and a configuration everyone can inspect.",
      "usefulWhen": [
        "more than one discipline must finish together",
        "a change in one part can break another",
        "the project needs a clear stop rule"
      ],
      "inputs": [
        "mission and users",
        "operating environment",
        "constraints and unknowns"
      ],
      "outputs": [
        "requirements tree",
        "interface control sheet",
        "state and failure map"
      ],
      "proof": [
        "every requirement has an owner and verification method",
        "interfaces are versioned",
        "unknowns and rejected assumptions remain visible"
      ],
      "tools": [
        "SysML or diagrams",
        "requirements table",
        "decision log",
        "configuration baseline"
      ],
      "interfaces": [
        "all disciplines"
      ],
      "flags": [
        "qualified review may still be required by the discipline that signs the final work"
      ],
      "keywords": [
        "requirements mission interface architecture configuration traceability integration system-of-systems"
      ]
    },
    {
      "id": "mechanical",
      "code": "MEC.DES",
      "layer": "matter",
      "title": "Mechanical design + mechanisms",
      "summary": "Design moving, fastening, folding, carrying, sealing, latching, and serviceable physical assemblies.",
      "usefulWhen": [
        "something moves or bears repeated use",
        "parts must assemble by hand",
        "repair access matters"
      ],
      "inputs": [
        "loads and motion",
        "users and tools",
        "materials and environment"
      ],
      "outputs": [
        "drawings and tolerances",
        "assembly sequence",
        "service and spare-parts plan"
      ],
      "proof": [
        "fit check",
        "cycle test",
        "tool-access review"
      ],
      "tools": [
        "CAD",
        "GD&T",
        "kinematics",
        "prototype fixtures"
      ],
      "interfaces": [
        "structures",
        "materials",
        "manufacturing",
        "maintenance"
      ],
      "flags": [
        "California mechanical engineering practice may require an appropriately licensed professional"
      ],
      "keywords": [
        "mechanism hinge latch cart folding fastener seal enclosure assembly tolerance repair"
      ]
    },
    {
      "id": "structures",
      "code": "STR.LOAD",
      "layer": "matter",
      "title": "Structures + loads",
      "summary": "Make gravity, wind, impact, fatigue, anchorage, stability, and load paths explicit before a structure meets people.",
      "usefulWhen": [
        "people stand under, on, or beside it",
        "wind or moving loads matter",
        "failure could injure someone"
      ],
      "inputs": [
        "geometry",
        "materials",
        "load cases and combinations"
      ],
      "outputs": [
        "load path",
        "analysis assumptions",
        "details and inspection points"
      ],
      "proof": [
        "independent calculation check",
        "controlled load test when appropriate",
        "documented wind and stop limits"
      ],
      "tools": [
        "hand calculations",
        "FEA",
        "codes and standards",
        "test instrumentation"
      ],
      "interfaces": [
        "civil-site",
        "materials",
        "safety",
        "manufacturing"
      ],
      "flags": [
        "public structural work may require licensed civil or structural engineering, permits, and inspection"
      ],
      "keywords": [
        "structure load wind anchorage frame foundation fatigue impact stability shade shelter"
      ]
    },
    {
      "id": "materials",
      "code": "MAT.SALT",
      "layer": "matter",
      "title": "Materials + corrosion",
      "summary": "Select and join materials for salt, sun, abrasion, fire behavior, cleaning, reuse, and an honest end of life.",
      "usefulWhen": [
        "the environment attacks the object",
        "dissimilar materials meet",
        "surface treatment drives service life"
      ],
      "inputs": [
        "exposure profile",
        "joining method",
        "maintenance interval"
      ],
      "outputs": [
        "material and finish schedule",
        "compatibility map",
        "coupon-test plan"
      ],
      "proof": [
        "traceable material callout",
        "exposure coupons",
        "inspection and replacement threshold"
      ],
      "tools": [
        "material databases",
        "microscopy",
        "coating tests",
        "failure analysis"
      ],
      "interfaces": [
        "mechanical",
        "structures",
        "manufacturing",
        "coastal-water"
      ],
      "flags": [
        "hazardous coatings, composites, batteries, and treated materials need appropriate handling and disposal"
      ],
      "keywords": [
        "salt air corrosion coating galvanic stainless aluminum polymer textile UV abrasion fire composite"
      ]
    },
    {
      "id": "thermal-fluids",
      "code": "THR.FLD",
      "layer": "matter",
      "title": "Thermal + fluid systems",
      "summary": "Model and test heat, airflow, pumps, piping, pressure, cooling, ventilation, and fluid handling.",
      "usefulWhen": [
        "temperature or flow changes performance",
        "pressure stores energy",
        "comfort and ventilation are design inputs"
      ],
      "inputs": [
        "heat and flow budgets",
        "fluid properties",
        "boundary conditions"
      ],
      "outputs": [
        "flow schematic",
        "thermal model",
        "pressure and relief plan"
      ],
      "proof": [
        "instrumented temperature and flow test",
        "leak and pressure test",
        "relief and shutdown verification"
      ],
      "tools": [
        "CFD",
        "thermal imaging",
        "flow and pressure meters",
        "psychrometrics"
      ],
      "interfaces": [
        "mechanical",
        "power",
        "process",
        "safety"
      ],
      "flags": [
        "pressurized, fueled, refrigerated, or occupied systems require applicable codes and qualified review"
      ],
      "keywords": [
        "heat thermal fluid airflow ventilation pump pressure cooling HVAC shade comfort"
      ]
    },
    {
      "id": "power",
      "code": "ELE.PWR",
      "layer": "signal",
      "title": "Electrical power + energy",
      "summary": "Budget, distribute, protect, isolate, charge, ground, and monitor electrical energy from source to load.",
      "usefulWhen": [
        "a battery or solar source enters the system",
        "fault energy can harm people or equipment",
        "runtime must be known"
      ],
      "inputs": [
        "load profile",
        "source limits",
        "environment and duty cycle"
      ],
      "outputs": [
        "one-line diagram",
        "power budget",
        "protection and isolation plan"
      ],
      "proof": [
        "measured load and runtime",
        "fault protection test",
        "labeling and safe shutdown"
      ],
      "tools": [
        "circuit analysis",
        "multimeters and scopes",
        "battery testers",
        "power-quality logging"
      ],
      "interfaces": [
        "embedded",
        "RF",
        "controls",
        "safety"
      ],
      "flags": [
        "building or public electrical work may require licensed electrical engineering and electrical contracting"
      ],
      "keywords": [
        "electrical power energy battery solar charging grounding protection runtime inverter"
      ]
    },
    {
      "id": "embedded",
      "code": "EMB.SNS",
      "layer": "signal",
      "title": "Embedded systems + instrumentation",
      "summary": "Connect sensors, actuators, microcontrollers, timing, calibration, logging, and physical controls.",
      "usefulWhen": [
        "the physical world needs to be measured",
        "a small controller must respond locally",
        "the proof needs time-stamped data"
      ],
      "inputs": [
        "measurand and range",
        "sample rate",
        "power and environment"
      ],
      "outputs": [
        "sensor chain",
        "firmware behavior",
        "calibration and data schema"
      ],
      "proof": [
        "known reference comparison",
        "fault injection",
        "raw-data export with units"
      ],
      "tools": [
        "microcontrollers",
        "DAQ",
        "oscilloscopes",
        "calibration fixtures"
      ],
      "interfaces": [
        "power",
        "RF",
        "controls",
        "test-reliability"
      ],
      "flags": [
        "measurement is not certification; safety-critical sensing needs qualified architecture and verification"
      ],
      "keywords": [
        "sensor instrument microcontroller firmware data logger actuator calibration weather sound wave"
      ]
    },
    {
      "id": "rf",
      "code": "RF.COMM",
      "layer": "signal",
      "title": "RF + communications",
      "summary": "Plan antennas, links, spectrum, interference, telemetry, networking, and graceful loss of communication.",
      "usefulWhen": [
        "information must cross space without a wire",
        "multiple radios share an environment",
        "range and interference matter"
      ],
      "inputs": [
        "frequency and bandwidth",
        "link geometry",
        "regulatory and coexistence limits"
      ],
      "outputs": [
        "link budget",
        "antenna and network plan",
        "loss-of-link behavior"
      ],
      "proof": [
        "measured coverage",
        "interference scan",
        "fallback operation without the link"
      ],
      "tools": [
        "spectrum analyzer",
        "VNA",
        "link simulation",
        "network test tools"
      ],
      "interfaces": [
        "power",
        "embedded",
        "controls",
        "systems"
      ],
      "flags": [
        "RF devices and experiments may require FCC authorization, licensed spectrum, or compliant equipment"
      ],
      "keywords": [
        "radio RF wireless antenna network telemetry spectrum interference link wifi lora bluetooth"
      ]
    },
    {
      "id": "controls",
      "code": "CTL.SW",
      "layer": "signal",
      "title": "Software + controls + autonomy",
      "summary": "Define observable state, control loops, algorithms, interfaces, cybersecurity boundaries, and safe degraded behavior.",
      "usefulWhen": [
        "software changes physical behavior",
        "automation must remain understandable",
        "the system needs simulation before field use"
      ],
      "inputs": [
        "state model",
        "sensor and actuator limits",
        "human authority and hazard analysis"
      ],
      "outputs": [
        "control logic",
        "simulation and test harness",
        "fallback and update plan"
      ],
      "proof": [
        "repeatable test vectors",
        "hardware-in-the-loop or bounded simulation",
        "manual override and failure recovery"
      ],
      "tools": [
        "version control",
        "simulation",
        "HIL",
        "static analysis",
        "threat modeling"
      ],
      "interfaces": [
        "systems",
        "embedded",
        "RF",
        "safety"
      ],
      "flags": [
        "no autonomous system should make an unreviewed safety, access, employment, or environmental decision"
      ],
      "keywords": [
        "software control autonomy robotics algorithm simulation cybersecurity digital twin human override"
      ]
    },
    {
      "id": "manufacturing",
      "code": "MFG.TOOL",
      "layer": "matter",
      "title": "Manufacturing + tooling",
      "summary": "Convert design intent into repeatable parts, fixtures, processes, work instructions, and an inspectable small run.",
      "usefulWhen": [
        "one prototype must become twelve",
        "variation matters",
        "assembly time or yield is unknown"
      ],
      "inputs": [
        "released drawing",
        "material and process",
        "quantity and acceptance criteria"
      ],
      "outputs": [
        "process plan",
        "tooling and fixtures",
        "work instructions and traveler"
      ],
      "proof": [
        "first-article inspection",
        "repeatability across the run",
        "scrap and rework record"
      ],
      "tools": [
        "CNC",
        "welding",
        "additive manufacturing",
        "forming",
        "CAM"
      ],
      "interfaces": [
        "mechanical",
        "materials",
        "quality-metrology",
        "industrial-logistics"
      ],
      "flags": [
        "machine, welding, hot-work, lifting, and chemical processes require trained operators and safe facilities"
      ],
      "keywords": [
        "manufacturing CNC machining welding additive 3d print fixture tooling production assembly small run"
      ]
    },
    {
      "id": "quality-metrology",
      "code": "QLT.MET",
      "layer": "proof",
      "title": "Quality + metrology",
      "summary": "Define what conforms, how it is measured, what uncertainty remains, and how nonconforming work is controlled.",
      "usefulWhen": [
        "dimensions or performance must repeat",
        "a supplier claim needs verification",
        "measurement affects acceptance"
      ],
      "inputs": [
        "critical characteristics",
        "tolerance and risk",
        "measurement method"
      ],
      "outputs": [
        "inspection plan",
        "measurement-system analysis",
        "nonconformance and disposition record"
      ],
      "proof": [
        "calibrated equipment",
        "traceable result with uncertainty",
        "repeat and reproduce check"
      ],
      "tools": [
        "CMM",
        "gages",
        "calibration standards",
        "statistical process control"
      ],
      "interfaces": [
        "manufacturing",
        "test-reliability",
        "materials",
        "systems"
      ],
      "flags": [
        "a precise number is not automatically an accurate or appropriate acceptance criterion"
      ],
      "keywords": [
        "quality metrology tolerance inspection calibration CMM gauge uncertainty acceptance traceability"
      ]
    },
    {
      "id": "test-reliability",
      "code": "TST.REL",
      "layer": "proof",
      "title": "Test + reliability",
      "summary": "Turn requirements and likely failures into controlled tests, evidence, limits, maintenance intervals, and learning.",
      "usefulWhen": [
        "failure matters",
        "the object repeats a cycle",
        "weather and misuse should be represented"
      ],
      "inputs": [
        "requirements",
        "failure modes",
        "use and exposure profile"
      ],
      "outputs": [
        "verification matrix",
        "test procedure",
        "failure and corrective-action report"
      ],
      "proof": [
        "calibrated setup and raw data",
        "predeclared pass/fail criteria",
        "documented anomaly and retest logic"
      ],
      "tools": [
        "FMEA",
        "DOE",
        "environmental test",
        "cycle rigs",
        "root-cause analysis"
      ],
      "interfaces": [
        "all disciplines"
      ],
      "flags": [
        "tests must not expose participants, habitat, bystanders, or facilities to unreviewed hazards"
      ],
      "keywords": [
        "test reliability verification validation FMEA failure fatigue weather cycle proof evidence"
      ]
    },
    {
      "id": "civil-site",
      "code": "CIV.SITE",
      "layer": "field",
      "title": "Civil + site + geotechnical",
      "summary": "Understand land, drainage, access, utilities, pavement, soil, surveying, construction sequence, and public interfaces.",
      "usefulWhen": [
        "work touches ground or public passage",
        "drainage and utilities matter",
        "temporary use can still create site risk"
      ],
      "inputs": [
        "survey and records",
        "soil and water conditions",
        "codes, ownership, and access"
      ],
      "outputs": [
        "site and drainage plan",
        "utility and access map",
        "construction and restoration sequence"
      ],
      "proof": [
        "field verification by authorized people",
        "code and permit matrix",
        "restored site and closeout record"
      ],
      "tools": [
        "surveying",
        "GIS",
        "hydrology",
        "geotechnical investigation",
        "BIM"
      ],
      "interfaces": [
        "structures",
        "coastal-water",
        "safety",
        "industrial-logistics"
      ],
      "flags": [
        "California civil engineering and surveying are regulated practices; site access and permits precede field work"
      ],
      "keywords": [
        "civil site geotechnical survey soil drainage utility pavement access foundation permit"
      ]
    },
    {
      "id": "coastal-water",
      "code": "ENV.WTR",
      "layer": "field",
      "title": "Water + coastal + environmental",
      "summary": "Work with water quality, hydrology, waves, sediment, habitat, wastewater, monitoring, and environmental review.",
      "usefulWhen": [
        "water or shoreline conditions drive the question",
        "a discharge or sample is involved",
        "habitat can be affected"
      ],
      "inputs": [
        "site jurisdiction",
        "baseline conditions",
        "sampling or model purpose"
      ],
      "outputs": [
        "monitoring plan",
        "hydrology or coastal model",
        "impact and avoidance matrix"
      ],
      "proof": [
        "approved method and chain of custody",
        "quality-controlled data",
        "avoidance, restoration, and reporting record"
      ],
      "tools": [
        "water sensors",
        "sampling protocols",
        "GIS",
        "hydrodynamic models",
        "environmental review"
      ],
      "interfaces": [
        "civil-site",
        "materials",
        "process",
        "test-reliability"
      ],
      "flags": [
        "no collection, release, restoration, wildlife handling, or shoreline activity without the responsible authority and permits"
      ],
      "keywords": [
        "water coastal ocean marine wave wastewater stormwater habitat environmental sampling hydrology sediment"
      ]
    },
    {
      "id": "process",
      "code": "CHM.PROC",
      "layer": "field",
      "title": "Chemical + process systems",
      "summary": "Define materials, reactions, mass balance, process conditions, containment, controls, and safe handling.",
      "usefulWhen": [
        "chemistry changes matter",
        "mixing, fermentation, treatment, fuel, or cleaning is involved",
        "a process must scale safely"
      ],
      "inputs": [
        "material properties and SDS",
        "process flow and conditions",
        "hazards and waste path"
      ],
      "outputs": [
        "process flow diagram",
        "mass and energy balance",
        "containment and control plan"
      ],
      "proof": [
        "characterized inputs and outputs",
        "controlled batch record",
        "hazard and waste verification"
      ],
      "tools": [
        "process simulation",
        "analytical chemistry",
        "reactor and separation equipment",
        "process controls"
      ],
      "interfaces": [
        "thermal-fluids",
        "materials",
        "embedded",
        "safety"
      ],
      "flags": [
        "food, fuel, biological, hazardous, pressurized, and waste processes have distinct regulatory and facility requirements"
      ],
      "keywords": [
        "chemical process reaction treatment fermentation fuel cleaning batch mass balance containment biotech"
      ]
    },
    {
      "id": "industrial-logistics",
      "code": "IND.FLOW",
      "layer": "operations",
      "title": "Industrial engineering + logistics",
      "summary": "Design flow, work cells, inventory, custody, ergonomics, routing, capacity, and reliable return.",
      "usefulWhen": [
        "many handoffs create failure",
        "equipment must arrive and leave intact",
        "time, labor, and capacity shape the result"
      ],
      "inputs": [
        "demand and route",
        "resources and constraints",
        "handoff and return conditions"
      ],
      "outputs": [
        "process map",
        "capacity and queue model",
        "custody and return standard"
      ],
      "proof": [
        "timed real route",
        "handoff error and damage record",
        "complete inventory return"
      ],
      "tools": [
        "value-stream maps",
        "simulation",
        "barcodes and manifests",
        "ergonomic analysis"
      ],
      "interfaces": [
        "manufacturing",
        "systems",
        "safety",
        "commission-maintain"
      ],
      "flags": [
        "secure, airside, port, hazardous-material, and regulated transport operations are out of scope without authorization"
      ],
      "keywords": [
        "industrial logistics operations handoff route inventory case custody supply chain queue ergonomics"
      ]
    },
    {
      "id": "safety-human",
      "code": "HFE.SAFE",
      "layer": "proof",
      "title": "Safety + human factors + accessibility",
      "summary": "Design controls, information, reach, force, error recovery, access, and stop conditions around real bodies and real authority.",
      "usefulWhen": [
        "people can be hurt, excluded, confused, or overburdened",
        "training is part of the control",
        "a public interface must work under stress"
      ],
      "inputs": [
        "users and access needs",
        "hazards and tasks",
        "environment and emergency context"
      ],
      "outputs": [
        "hazard analysis",
        "accessible task and interface review",
        "controls and emergency plan"
      ],
      "proof": [
        "representative usability test with consent",
        "verified stop and recovery",
        "access findings resolved or openly logged"
      ],
      "tools": [
        "task analysis",
        "hazard analysis",
        "ergonomic tools",
        "accessibility standards"
      ],
      "interfaces": [
        "all disciplines"
      ],
      "flags": [
        "Cal/OSHA distinguishes trained, competent, qualified, and when required licensed people; labels are not substitutes for those duties"
      ],
      "keywords": [
        "safety human factors accessibility ADA ergonomics hazard stop emergency training usability public"
      ]
    },
    {
      "id": "commission-maintain",
      "code": "OPS.KEEP",
      "layer": "operations",
      "title": "Commissioning + maintenance + repair",
      "summary": "Prove a system is ready, make normal care legible, diagnose failure, control spares, and plan retirement or return.",
      "usefulWhen": [
        "the handoff from builder to operator can fail",
        "maintenance determines real service life",
        "the project needs a clean ending"
      ],
      "inputs": [
        "as-built configuration",
        "acceptance criteria",
        "operating and service context"
      ],
      "outputs": [
        "commissioning script",
        "maintenance card and spares list",
        "decommission and return plan"
      ],
      "proof": [
        "functional performance test",
        "repeat repair by someone other than the designer",
        "complete closeout and material return"
      ],
      "tools": [
        "checklists",
        "diagnostic instruments",
        "CMMS or service log",
        "spares and repair fixtures"
      ],
      "interfaces": [
        "all disciplines"
      ],
      "flags": [
        "only authorized and qualified people should energize, open, repair, or return regulated systems"
      ],
      "keywords": [
        "commission maintenance repair service diagnose spares closeout pack-out return operator lifecycle"
      ]
    }
  ],
  "missionStacks": [
    {
      "id": "shade-return",
      "command": "stack shade-return",
      "title": "Shade That Returns",
      "question": "Build a calm hand-carried shade room whose joints, wind limits, access path, repair plan, and pack-out are inspectable.",
      "capabilities": [
        "systems",
        "structures",
        "materials",
        "manufacturing",
        "test-reliability",
        "safety-human",
        "commission-maintain"
      ],
      "deliverables": [
        "requirements + wind stop rule",
        "load path + joint details",
        "material/finish schedule",
        "three-assembly test log",
        "access + complete pack-out record"
      ],
      "stop": "No field assembly until the responsible site steward and appropriately qualified reviewers accept the location, wind rule, access plan, and setup method."
    },
    {
      "id": "repair-bench",
      "command": "stack repair-bench",
      "title": "Salt-Air Repair Bench",
      "question": "Create one portable bench that can inspect, clean, patch, document, and return ordinary beach utility gear.",
      "capabilities": [
        "mechanical",
        "materials",
        "manufacturing",
        "quality-metrology",
        "safety-human",
        "commission-maintain"
      ],
      "deliverables": [
        "repair envelope + tool map",
        "material compatibility card",
        "fixture and work instructions",
        "four repeat repair records",
        "parts and waste return log"
      ],
      "stop": "Exclude hazardous, pressurized, energized, life-safety, structural, or owner-restricted equipment unless the proper facility and qualified person take responsibility."
    },
    {
      "id": "hard-thing",
      "command": "stack hard-thing",
      "title": "Explain the Hard Thing",
      "question": "Make one difficult regional system legible in ten minutes without hiding interfaces, uncertainty, or consequences.",
      "capabilities": [
        "systems",
        "controls",
        "embedded",
        "test-reliability",
        "safety-human"
      ],
      "deliverables": [
        "system boundary + interface map",
        "one tactile or simulated demonstration",
        "source and uncertainty ledger",
        "three retell tests",
        "corrected field card"
      ],
      "stop": "Do not expose secure, proprietary, private, or safety-sensitive details; explanation is not authorization to operate the represented system."
    },
    {
      "id": "arrival-handoff",
      "command": "stack arrival-handoff",
      "title": "The Arrival Handoff",
      "question": "Test a public, accessible, multilingual handoff from a regional gateway to one local door without claiming control of either.",
      "capabilities": [
        "systems",
        "civil-site",
        "industrial-logistics",
        "controls",
        "safety-human"
      ],
      "deliverables": [
        "route and interface map",
        "timed physical rehearsal",
        "accessible alternative",
        "failure/recovery notes",
        "versioned public card"
      ],
      "stop": "Use only public, currently authorized routes and information; never enter secure areas or represent an agency, operator, venue, or transit provider."
    },
    {
      "id": "field-sound",
      "command": "stack field-sound",
      "title": "Field Sound Line",
      "question": "Build a small consent-forward instrument for wind, waves, tools, and authored voices with honest levels and data.",
      "capabilities": [
        "power",
        "embedded",
        "rf",
        "controls",
        "test-reliability",
        "safety-human"
      ],
      "deliverables": [
        "signal and power chain",
        "calibration tone + level limit",
        "loss-of-link behavior",
        "consent and credits card",
        "twenty-minute sequence"
      ],
      "stop": "No captured conversation without consent, no wildlife disturbance, no unapproved transmission, and no unsafe listening level."
    },
    {
      "id": "elements-score",
      "command": "stack elements-score",
      "title": "Elements Score",
      "question": "Turn sun, wind, water, and changing light into fair rules for a reversible public game.",
      "capabilities": [
        "systems",
        "structures",
        "embedded",
        "coastal-water",
        "test-reliability",
        "safety-human",
        "commission-maintain"
      ],
      "deliverables": [
        "four element rules",
        "sensor or observation method",
        "weather cancellation threshold",
        "access adaptation",
        "site restoration and pack-out check"
      ],
      "stop": "A conceptual score is not an event permit. No installation, sampling, wildlife interaction, water entry, or gathering is implied."
    }
  ],
  "regionalDoors": [
    {
      "id": "ssc",
      "name": "Space Systems Command",
      "place": "El Segundo",
      "band": "CENTER",
      "kind": "capability signal",
      "capabilities": [
        "systems",
        "rf",
        "controls",
        "test-reliability"
      ],
      "use": "Official public evidence of mission integration, acquisition, interfaces, and resilient space systems.",
      "access": "Secure operating organization; public source only. No visitor, employment, partnership, or access claim.",
      "url": "https://www.ssc.spaceforce.mil/Portals/3/Documents/SSC_Command_Plan_2024_Final_04_02_2025_.pdf"
    },
    {
      "id": "aerospace",
      "name": "The Aerospace Corporation · El Segundo campus",
      "place": "El Segundo",
      "band": "CENTER",
      "kind": "capability signal",
      "capabilities": [
        "systems",
        "test-reliability",
        "safety-human",
        "controls"
      ],
      "use": "Official evidence of an active engineering, research, and laboratory campus serving mission-critical space systems.",
      "access": "Major regional office and technical campus; not represented as publicly accessible.",
      "url": "https://aerospace.org/press-release/aerospace-shifts-corporate-headquarters-dc-area"
    },
    {
      "id": "spacex",
      "name": "SpaceX · Hawthorne engineering and production",
      "place": "Hawthorne",
      "band": "CENTER",
      "kind": "current role taxonomy",
      "capabilities": [
        "mechanical",
        "materials",
        "thermal-fluids",
        "power",
        "embedded",
        "controls",
        "manufacturing",
        "test-reliability"
      ],
      "use": "Current official role taxonomy exposes the breadth of local manufacturing, propulsion, avionics, software, materials, test, and reliability work.",
      "access": "Career listings change. Presence is evidence of capability, not a claim that a particular role remains open.",
      "url": "https://www.spacex.com/careers/jobs"
    },
    {
      "id": "lmu",
      "name": "LMU Seaver engineering programs",
      "place": "Westchester",
      "band": "CENTER",
      "kind": "learning door",
      "capabilities": [
        "civil-site",
        "mechanical",
        "power",
        "embedded",
        "controls"
      ],
      "use": "Official program door for civil, computer, electrical, and mechanical engineering close to the radius center.",
      "access": "Academic program information; admission, lab access, and participation have their own requirements.",
      "url": "https://admission.lmu.edu/about/academics/majors/"
    },
    {
      "id": "sbwib",
      "name": "South Bay Workforce Investment Board apprenticeships",
      "place": "South Bay",
      "band": "NEAR",
      "kind": "workforce door",
      "capabilities": [
        "manufacturing",
        "quality-metrology",
        "industrial-logistics",
        "commission-maintain"
      ],
      "use": "Official apprenticeship and pre-apprenticeship bridge for aerospace, advanced manufacturing, aviation, technology, and other sectors.",
      "access": "Programs, cohorts, eligibility, employers, and application periods change; verify on the official route.",
      "url": "https://southbaycities.org/perspective-building-the-south-bays-future-workforce-through-apprenticeships/"
    },
    {
      "id": "elcamino",
      "name": "El Camino College Manufacturing Technology",
      "place": "Torrance",
      "band": "NEAR",
      "kind": "learning door",
      "capabilities": [
        "manufacturing",
        "quality-metrology",
        "mechanical",
        "embedded"
      ],
      "use": "Hands-on official pathway through CAD, machining, CNC, electronics, robotics, welding, measurement, and print reading.",
      "access": "Program and course requirements are controlled by El Camino College.",
      "url": "https://www.elcamino.edu/academics/areas-of-study/manufacturing-technology.html"
    },
    {
      "id": "csudh",
      "name": "CSUDH systems, quality, cybersecurity + safety programs",
      "place": "Carson",
      "band": "NEAR",
      "kind": "learning door",
      "capabilities": [
        "systems",
        "quality-metrology",
        "controls",
        "safety-human"
      ],
      "use": "Official continuing and professional education evidence for systems engineering, quality assurance, cybersecurity, reliability, and occupational safety.",
      "access": "Offerings, formats, eligibility, and schedules change; confirm in the current catalog.",
      "url": "https://catalog.csudh.edu/general-information/division-academic-affairs/continuing-professional-education/continuing-professional-education.pdf"
    },
    {
      "id": "lawa",
      "name": "LAWA Design + Construction Handbook",
      "place": "LAX",
      "band": "CENTER",
      "kind": "open specification door",
      "capabilities": [
        "systems",
        "civil-site",
        "structures",
        "power",
        "industrial-logistics",
        "safety-human"
      ],
      "use": "A rare public corpus of real airport project process, BIM, geospatial, wayfinding, design, construction, commissioning, and closeout requirements.",
      "access": "Reading specifications is public; airport work, access, procurement, and approvals are controlled by LAWA.",
      "url": "https://www.lawa.org/lawa-businesses/lawa-documents-and-guidelines/lawa-design-and-construction-handbook"
    },
    {
      "id": "portla",
      "name": "Port of Los Angeles Engineering Division",
      "place": "San Pedro",
      "band": "RING",
      "kind": "public infrastructure door",
      "capabilities": [
        "civil-site",
        "coastal-water",
        "structures",
        "industrial-logistics",
        "commission-maintain"
      ],
      "use": "Official public description of harbor design plans, specifications, contract documents, maintenance, repair, and redevelopment functions.",
      "access": "Port operations and projects are controlled environments; the link is for public orientation, not access.",
      "url": "https://portoflosangeles.org/about/contact/division-directory"
    },
    {
      "id": "ladwp",
      "name": "LADWP Student Engineer Program",
      "place": "Los Angeles",
      "band": "RING",
      "kind": "paid learning door",
      "capabilities": [
        "civil-site",
        "power",
        "mechanical",
        "process",
        "systems"
      ],
      "use": "Official paid program pairing eligible engineering students with infrastructure teams and project-related work.",
      "access": "Eligibility and application windows apply. The official page currently describes the 2026 cycle and future opening timing.",
      "url": "https://www.ladwp.com/who-we-are/careers/internships"
    },
    {
      "id": "usc",
      "name": "USC Viterbi departments + research centers",
      "place": "University Park",
      "band": "RING",
      "kind": "learning and research door",
      "capabilities": [
        "systems",
        "mechanical",
        "civil-site",
        "power",
        "controls",
        "process",
        "industrial-logistics"
      ],
      "use": "Official map of aerospace, mechanical, astronautical, biomedical, chemical, materials, civil, environmental, computing, electrical, and industrial systems work.",
      "access": "Academic and research programs have separate admission, participation, and facility rules.",
      "url": "https://viterbischool.usc.edu/research/departments-research-institutes-and-centers/"
    },
    {
      "id": "ucla",
      "name": "UCLA Samueli expertise directory",
      "place": "Westwood",
      "band": "RING",
      "kind": "learning and research door",
      "capabilities": [
        "mechanical",
        "materials",
        "civil-site",
        "coastal-water",
        "power",
        "controls",
        "process"
      ],
      "use": "Official department-level expertise map spanning bio, chemical, civil, environmental, computing, electrical, mechanical, aerospace, and materials engineering.",
      "access": "This catalog links only to the school-level public directory; it does not republish individual contact data.",
      "url": "https://samueli.ucla.edu/faculty-expertise-directory/"
    },
    {
      "id": "csulb",
      "name": "CSULB Hung Family College of Engineering",
      "place": "Long Beach",
      "band": "EDGE",
      "kind": "learning door",
      "capabilities": [
        "mechanical",
        "civil-site",
        "coastal-water",
        "power",
        "embedded",
        "controls",
        "process"
      ],
      "use": "Official applied programs in aerospace, biomedical, chemical, civil, computer, construction, electrical, environmental, engineering technology, and mechanical engineering.",
      "access": "Long Beach is an approximate edge door in this editorial radius; program rules and access remain with CSULB.",
      "url": "https://www.csulb.edu/hung-family-college-of-engineering/undergraduate-programs-0"
    },
    {
      "id": "bpelsg",
      "name": "California engineering licensure gate",
      "place": "Statewide",
      "band": "RULE",
      "kind": "qualification gate",
      "capabilities": [
        "mechanical",
        "structures",
        "power",
        "civil-site",
        "process",
        "industrial-logistics"
      ],
      "use": "Official explanation of California practice acts, title acts, title authorities, experience, exams, and license verification.",
      "access": "Use the Board’s current rules and license lookup; ENG/25 does not determine who is qualified to practice.",
      "url": "https://bpelsg.ca.gov/applicants/appintrope.shtml"
    },
    {
      "id": "calosha",
      "name": "Cal/OSHA training + qualified-person requirements",
      "place": "Statewide",
      "band": "RULE",
      "kind": "safety gate",
      "capabilities": [
        "safety-human",
        "manufacturing",
        "civil-site",
        "commission-maintain"
      ],
      "use": "Official index of training duties and the distinct competent-person and qualified-person concepts used in California work.",
      "access": "The page is a guide and not a substitute for Title 8 or a worksite-specific safety program.",
      "url": "https://dir.ca.gov/dosh/dosh_publications/trainingreq.htm"
    },
    {
      "id": "fcc",
      "name": "FCC equipment authorization + experimental radio",
      "place": "Federal",
      "band": "RULE",
      "kind": "spectrum gate",
      "capabilities": [
        "rf",
        "embedded",
        "power"
      ],
      "use": "Official regulatory door for RF equipment authorization and experimental operation.",
      "access": "Use compliant equipment and the applicable authorization; ENG/25 does not grant spectrum rights.",
      "url": "https://opendata.fcc.gov/Engineering-Technology/EAS-Equipment-Authorization-Grantee-Registrations/3b3k-34jp"
    },
    {
      "id": "abet",
      "name": "ABET accredited-program search",
      "place": "National",
      "band": "RULE",
      "kind": "education verification",
      "capabilities": [
        "systems",
        "mechanical",
        "power",
        "civil-site",
        "process"
      ],
      "use": "Official current search for accredited engineering and engineering-technology programs.",
      "access": "Accreditation applies to programs, not every individual course, person, employer, or project.",
      "url": "https://www.abet.org/"
    }
  ],
  "proofPacket": [
    {
      "code": "00",
      "title": "Mission",
      "detail": "One sentence naming the user, useful result, operating place, and finish line."
    },
    {
      "code": "01",
      "title": "Requirements",
      "detail": "Each requirement has a source, owner, priority, and verification method."
    },
    {
      "code": "02",
      "title": "Interfaces",
      "detail": "Every material, energy, signal, person, authority, and handoff crossing is visible."
    },
    {
      "code": "03",
      "title": "Assumptions",
      "detail": "Loads, conditions, distances, availability, access, and unknowns are versioned—not smuggled in."
    },
    {
      "code": "04",
      "title": "Build record",
      "detail": "Drawing, bill of materials, process, supplier, configuration, and deviations travel with the thing."
    },
    {
      "code": "05",
      "title": "Test record",
      "detail": "Setup, calibration, raw data, pass/fail criteria, anomaly, correction, and retest remain inspectable."
    },
    {
      "code": "06",
      "title": "Qualified gates",
      "detail": "Licenses, competent people, permits, owners, operators, and site stewards are named before their authority is used."
    },
    {
      "code": "07",
      "title": "Keep + close",
      "detail": "Operator, maintenance interval, repair door, spares, stop rule, pack-out, restoration, and end-of-life path are assigned."
    }
  ],
  "terminal": {
    "availability": "human HTML companion only",
    "commands": [
      {
        "command": "help",
        "detail": "Show the command reference."
      },
      {
        "command": "ls skills",
        "detail": "Show all engineering man pages."
      },
      {
        "command": "ls gateways",
        "detail": "Jump to official regional doors."
      },
      {
        "command": "find salt air",
        "detail": "Search every capability field."
      },
      {
        "command": "layer signal",
        "detail": "Filter by architecture, matter, signal, field, proof, or operations."
      },
      {
        "command": "stack shade-return",
        "detail": "Compile one Radius 25 mission stack."
      },
      {
        "command": "proof",
        "detail": "Jump to the eight-part proof packet."
      },
      {
        "command": "export",
        "detail": "Copy the selected work order; PointCast receives nothing."
      },
      {
        "command": "clear",
        "detail": "Reset filters and terminal output."
      }
    ],
    "parser": "bounded in-page command parser; no arbitrary shell or code execution",
    "search": "case-insensitive token matching against checked-in capability data",
    "state": "browser memory only for the current page view",
    "actions": [
      "filter capability cards",
      "select a checked-in mission stack",
      "scroll to a catalog section",
      "copy a work order to the clipboard"
    ],
    "storage": false,
    "cookies": false,
    "analytics": false,
    "identity": false,
    "geolocation": false,
    "registration": false,
    "arbitraryExecution": false,
    "networkWrites": false
  },
  "methodology": {
    "researchCheckedAt": "2026-08-01T01:45:00-07:00",
    "sourcePolicy": "Official government, regulator, educational institution, or organization-owned sources. No private-person catalog, third-party people aggregator, or inferred individual skill profile.",
    "radiusBoundary": "A roughly 25-mile straight-line editorial field centered on El Segundo. Bands are orientation labels, not measured commute, service, legal, labor-market, procurement, or geofence boundaries. Edge doors are approximate.",
    "capabilityBoundary": "Named organizations and programs are evidence that a capability or learning route exists in the regional field. They are not members, partners, hosts, vendors, endorsers, available facilities, or commitments.",
    "qualificationBoundary": "The catalog cannot determine licensure, competence, authorization, suitability, code compliance, or a safe means and method. Verify current rules and responsible professionals for real work.",
    "activityBoundary": "No crew, job, hiring process, contract, procurement, permit, site, facility access, installation, test, sampling, transmission, construction, environmental activity, public program, or partnership is announced or promised.",
    "freshness": "Programs, role listings, regulations, access, and URLs change. Recheck the official source before relying on a door."
  }
}