Pipe sizing, heat loss, gas record checks and emergency triage for UK plumbers' AI assistants
Connect Remote server
claude mcp add --transport http flow-pack https://flow-pack.nerolabs.workers.dev/mcp
{
"mcpServers": {
"flow-pack": {
"url": "https://flow-pack.nerolabs.workers.dev/mcp"
}
}
}
{
"servers": {
"flow-pack": {
"type": "http",
"url": "https://flow-pack.nerolabs.workers.dev/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://flow-pack.nerolabs.workers.dev/mcp
Tools 8 found in our last check
list_capabilitiesLists Flow Pack's tools, what it covers (nations, pipe materials, gases, record types, emergency situations) and what it deliberately does not do. Free, needs no input.
size_pipeSizes a hot or cold water pipe, or a low-pressure gas pipe, and shows the working. Water: design flow (from outlets, with a simple in-use-at-once rule, or a flow you give), velocity against a limit (1.5 m/s default), pressure loss per metre and in total, and the pressure left at…
size_heat_sourceWorks out the heat loss of each room (fabric U x A x delta T plus ventilation 0.33 x air changes x volume x delta T) and the total, then sizes a combi, system or regular boiler, or a heat pump, to the nearest common size. Combi sizing also checks the hot water load (flow x tempe…
size_radiatorsFor each room's heat loss, works out the rated (delta T 50) radiator output needed at the system's flow and return temperatures, using output = rated x (mean water to air difference / 50) ^ 1.3. Shows how far an existing radiator falls short, the water flow per radiator, indicat…
check_notifiable_workFor plumbing and heating jobs in England or Wales: does it need a Gas Safe registered engineer, an unvented (G3) qualified installer, building regulations notification (Approved Documents G, J, L and others) and a water company notice (Water Fittings Regulations, regulation 5)?…
check_gas_recordChecks a filled landlord gas safety record (CP12) or a boiler commissioning record and lists errors and warnings: missing required fields, failed tightness, flue, ventilation or safety device checks, CO/CO2 ratio over the limits, gas rate off the rated input, meter pressure out…
emergency_triageFor a homeowner reporting a problem: the safe first steps to do now, what not to do, who to call first (the gas emergency service 0800 111 999 for a gas smell or CO alarm), whether it is a real emergency, and an `urgency` value of routine, soon or emergency that matches Nero Wor…
trade_profileChecks the business's own details (Nero Trade Profile v1: trading name, Companies House number, registration scheme and number, postcode, contact) and returns them cleaned, with a stable `nero_trade_ref` computed from the scheme registration (licence_body gas_safe plus the Gas S…
Details
| Endpoint | https://flow-pack.nerolabs.workers.dev/mcp (Streamable HTTP) |
| First published | 13 Nov 2026 |
| Last updated | 13 Nov 2026 |
| Registry name | io.github.Nero-Engine/flow-pack |
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