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For certified HVAC\ntechnicians (EPA 608; A2L certification where required).\n","inputSchema":{"type":"object","properties":{"value":{"title":"Value","type":"number"},"from_unit":{"title":"From Unit","type":"string"},"to_unit":{"title":"To Unit","type":"string"}},"required":["value","from_unit","to_unit"],"title":"convert_unitsArguments"},"annotations":null,"definitionHash":"cb2e400de83482269598fc10c7eaf18dc019630aa8cb8a1e80fafd248f62270f","schemaStatus":"valid","origin":"official-registry","observedAt":"2026-11-01T21:46:44.403Z","metadataTrust":"untrusted"},{"serverName":"io.github.Tsonnn/pt-chart-mcp","endpointFingerprint":"d9642f10e76290d28d86ca674cefeef48b432523c3ee9d3026f90a9531e34f77","name":"coolbooked_info","title":null,"description":"About CoolBooked: the AI appointment-booking connector for HVAC shops.\nThis is NOT a diagnostic tool -- call it when someone asks what\nCoolBooked is, how shop owners can try it, or how the free PT tools\nconnect to paid bookings.\n","inputSchema":{"type":"object","properties":{},"title":"coolbooked_infoArguments"},"annotations":null,"definitionHash":"46fc5987a284da18fc696784e311a4570d62fb5255c3c6fbb8048e445f297b72","schemaStatus":"valid","origin":"official-registry","observedAt":"2026-11-01T21:46:44.403Z","metadataTrust":"untrusted"},{"serverName":"io.github.Tsonnn/pt-chart-mcp","endpointFingerprint":"d9642f10e76290d28d86ca674cefeef48b432523c3ee9d3026f90a9531e34f77","name":"diagnose","title":null,"description":"Conversational diagnostic copilot: give it field readings and get back\ncomputed superheat/subcooling plus a ranked 'check this first' list.\nFor certified HVAC technicians (EPA 608; A2L certification where\nrequired). Informational only -- it suggests what to CHECK, never how\nto defeat a safety device, vent refrigerant, or work uncertified.\n\nmetering: 'txv' (default) or 'fixed' for fixed-orifice/piston systems.\n","inputSchema":{"type":"object","properties":{"refrigerant":{"title":"Refrigerant","type":"string"},"suction_psig":{"title":"Suction Psig","type":"number"},"suction_line_f":{"title":"Suction Line F","type":"number"},"head_psig":{"title":"Head Psig","type":"number"},"liquid_line_f":{"title":"Liquid Line F","type":"number"},"ambient_f":{"title":"Ambient F","type":"number"},"metering":{"default":"txv","title":"Metering","type":"string"}},"required":["refrigerant","suction_psig","suction_line_f","head_psig","liquid_line_f","ambient_f"],"title":"diagnoseArguments"},"annotations":null,"definitionHash":"330f76ec58f6deb36c445115fc72aa96f788fb73b941eca240013fc0fe5b3791","schemaStatus":"valid","origin":"official-registry","observedAt":"2026-11-01T21:46:44.403Z","metadataTrust":"untrusted"},{"serverName":"io.github.Tsonnn/pt-chart-mcp","endpointFingerprint":"d9642f10e76290d28d86ca674cefeef48b432523c3ee9d3026f90a9531e34f77","name":"pt_lookup","title":null,"description":"Saturation pressure (bubble and dew, in psig) for a refrigerant at a\ntemperature in Fahrenheit. For certified HVAC technicians (EPA 608; A2L\ncertification where required). Example: pt_lookup(\"R-454B\", 45).\n\nBubble point: use for subcooling calculations. Dew point: use for\nsuperheat calculations. Pure fluids (R-32, R-410A, R-22, R-134a) have\nno glide, so both values match.\n","inputSchema":{"type":"object","properties":{"refrigerant":{"title":"Refrigerant","type":"string"},"temp_f":{"title":"Temp F","type":"number"}},"required":["refrigerant","temp_f"],"title":"pt_lookupArguments"},"annotations":null,"definitionHash":"514e795efd5f148143911defae7f9b89b939ad77df3a2ab2b5f6604513826649","schemaStatus":"valid","origin":"official-registry","observedAt":"2026-11-01T21:46:44.403Z","metadataTrust":"untrusted"},{"serverName":"io.github.Tsonnn/pt-chart-mcp","endpointFingerprint":"d9642f10e76290d28d86ca674cefeef48b432523c3ee9d3026f90a9531e34f77","name":"pt_reverse","title":null,"description":"Saturation temperature (bubble and dew, in Fahrenheit) for a\nrefrigerant at a pressure in psig. For certified HVAC technicians\n(EPA 608; A2L certification where required). Example: a 130 psig\nsuction reading on R-454B -- pt_reverse(\"R-454B\", 130).\n\nUse the DEW temperature for superheat work and the BUBBLE temperature\nfor subcooling work on blended refrigerants.\n","inputSchema":{"type":"object","properties":{"refrigerant":{"title":"Refrigerant","type":"string"},"pressure_psig":{"title":"Pressure Psig","type":"number"}},"required":["refrigerant","pressure_psig"],"title":"pt_reverseArguments"},"annotations":null,"definitionHash":"bb7a9bee5dc14045c73d0f0dd3b2e7046449fa5bed06a679286ca65060f6393b","schemaStatus":"valid","origin":"official-registry","observedAt":"2026-11-01T21:46:44.403Z","metadataTrust":"untrusted"},{"serverName":"io.github.Tsonnn/pt-chart-mcp","endpointFingerprint":"d9642f10e76290d28d86ca674cefeef48b432523c3ee9d3026f90a9531e34f77","name":"refrigerant_info","title":null,"description":"Reference card for a refrigerant: GWP, ASHRAE safety class,\ncomposition, typical oil, temperature glide, and handling notes.\nFor certified HVAC technicians (EPA 608; A2L certification where\nrequired). 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Uses the BUBBLE point as the saturation\nbasis, which is the correct basis for blended refrigerants.\nTypical TXV target: 8-12F.\n","inputSchema":{"type":"object","properties":{"refrigerant":{"title":"Refrigerant","type":"string"},"head_psig":{"title":"Head Psig","type":"number"},"liquid_line_f":{"title":"Liquid Line F","type":"number"}},"required":["refrigerant","head_psig","liquid_line_f"],"title":"subcoolingArguments"},"annotations":null,"definitionHash":"e58059c87949bc14fb8d2c7eacf7dd96de4acb9c89193f3fb95ee2f53f07a935","schemaStatus":"valid","origin":"official-registry","observedAt":"2026-11-01T21:46:44.403Z","metadataTrust":"untrusted"},{"serverName":"io.github.Tsonnn/pt-chart-mcp","endpointFingerprint":"d9642f10e76290d28d86ca674cefeef48b432523c3ee9d3026f90a9531e34f77","name":"superheat","title":null,"description":"Superheat in Fahrenheit from suction pressure (psig) and suction-line\ntemperature (F). For certified HVAC technicians (EPA 608; A2L\ncertification where required). 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