← The evidence ledger
Evidence row 1286857
Observed , by probe.mcp/1.
- Kind
- mcp.tools
- About
- endpoint 5fa5559a-68f0-497c-b5cc-4a977e67e360
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 8ac51e4b4134f8ed870cf41b1596c69e8477ce97b35b4e7adb60fa05deb588b6
- Leaf
- 0xe2152c29829f47ff08e5f03a9c248e2c7d1c3b58e6aa4d38ecc0121d7344e082
What was observed
{
"count": 4,
"tools": [
{
"description": "Finds the best round trips from where someone lives, not just from one airport: it adds the train or bus to every airport they can reach and ranks all options door to door, by price, by total travel time, or balanced. Use it when someone wants flights from their home town, could fly from several airports, or asks for the cheapest or fastest way to get somewhere, e.g. \"I live in New Haven: should I fly to Lisbon from JFK, Newark, Boston or Hartford?\" Not for a search from one airport already chosen. For a one-way trip set one_way (the trip length is then ignored). Multi-city: search each leg as one_way only when the user gave dates for it; otherwise ask for the dates. Set mode only when the user says how they get to the airport (car, train, bus, any): by default a home in the US compares driving, a taxi to a near airport and public transport, and a home elsewhere uses the train or bus. A named departure airport is an ordinary search: pass it as from_airports, with the home town the user gave. A month or holiday without a year means the next one coming; don't ask which year, and don't ask for the trip length or to confirm a town: search, and the answer says what it assumed; when it has `confirm`, ask its question after showing the results. Any town or village works. The first search from a town we haven't seen takes about 20 seconds while we look up its train and bus connections; tell the user you're checking the connections from their town to each airport. Later searches from that town take a second or two. Give the home town and where to: airport, city or country codes, a list of them, or a region such as \"Iberia\" or \"Southeast Asia\". For \"anywhere\", a continent (\"Asia\") or \"somewhere warm\" it finds the cheapest places itself: pass \"anywhere\", \"abroad\" (another country) or the continent, or for warm, sunny or a beach the countries that fit the season with anywhere true; it searches the best 6 cities door to door. Dates are optional, but `dates` says where they came from: use \"assumed\" when the user gave none and you picked them (or left them out). Without them it searches departures in the next 3 months at 2-14 nights and says so. If the user gave no hint of when at all, one quick question about timing is fine. Example call: {\"home\": \"New Haven\", \"destinations\": [\"LIS\"], \"dates\": \"from_user\", \"depart_from\": \"2027-03-01\", \"depart_to\": \"2027-03-31\", \"nights_min\": 5, \"nights_max\": 9, \"travellers\": 2}. Show the answer's rows as a table with the airports each trip flies from and to, and give every booking link exactly as returned, as a clickable link (don't shorten or rewrite it); show the picks and at most a few more rows, and relay the answer's notes. Airports more than 8.5 hours from the door are left out and named in the answer (max_ground_hours changes that: set it only if the user says how far they would travel). Say when a ground leg is an estimate. If the answer's status isn't \"ok\", tell the user plainly what its note says and don't invent prices. Keep the user's own dates, trip length and places: if nothing is found, say so and offer to widen them, instead of widening on your own. Prices are in the traveller's home currency unless `currency` is given, per person; use the totals the answer gives for a party and don't convert or add up prices yourself. Prices come from recent searches on Aviasales and can change. Booking links are affiliate links: Doorfarer may earn a commission if you book, at no extra cost to you. Say so when you show them, and only then. When the user picks a trip, trip_details gives it step by step with a calendar file; when they ask which month is cheapest, price_calendar answers first, instantly. If an answer is wrong or confusing, report it with send_feedback.",
"inputSchema": {
"properties": {
"anywhere": {
"default": false,
"description": "True to find the cheapest places anywhere in the countries or regions named, instead of searching each one's biggest airports. A continent (Asia, Europe), \"anywhere\" or \"abroad\" (outside the home country) in destinations always searches this way. For \"somewhere warm\" or \"a beach\", pass the countries that fit the season and set this.",
"title": "Anywhere",
"type": "boolean"
},
"currency": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "ISO code (USD, GBP, EUR) to show prices in. Default: the traveller's home currency.",
"title": "Currency"
},
"dates": {
"description": "\"from_user\" whenever the user named any time at all (a month, season, holiday, \"next week\"); \"assumed\" only when they named none and you picked dates or left them out.",
"enum": [
"from_user",
"assumed"
],
"title": "Dates",
"type": "string"
},
"depart_from": {
"anyOf": [
{
"format": "date",
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "The window to leave in: first day. Leave out with depart_to for the next 3 months. A window of at most 183 days, within the next 12 months.",
"title": "Depart From"
},
"depart_to": {
"anyOf": [
{
"format": "date",
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "The window to leave in: last day. A window of at most 183 days, within the next 12 months.",
"title": "Depart To"
},
"destinations": {
"description": "Where to: airport codes (LIS), city codes (NYC), country codes (PT), a region, a continent (Asia), \"anywhere\" or \"abroad\" (outside the home country). At most 6.",
"items": {
"type": "string"
},
"maxItems": 6,
"title": "Destinations",
"type": "array"
},
"from_airports": {
"anyOf": [
{
"items": {
"type": "string"
},
"type": "array"
},
{
"type": "null"
}
],
"default": null,
"description": "Only these departure airports. For narrowing a previous answer. At most 8.",
"maxItems": 8,
"title": "From Airports"
},
"home": {
"description": "The traveller's home town or village, e.g. \"New Haven\" or \"Hamden, US\". Not an airport. Add the country when the name is common. At most 80 characters.",
"title": "Home",
"type": "string"
},
"limit": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
],
"default": null,
"description": "Rows to return, 1-25. Default: the picks plus the best trip from each airport.",
"title": "Limit"
},
"max_ground_hours": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
],
"default": null,
"description": "The most hours from the front door to the departure airport, one way. Default 8.5: farther airports are left out and named in the answer. Set it only when the user says how far they would travel to the airport, or to include the far ones the answer names.",
"title": "Max Ground Hours"
},
"mode": {
"anyOf": [
{
"enum": [
"public",
"train",
"bus",
"car",
"any"
],
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "How the user gets to the airport: public (train or bus), train, bus, car (their own, parked at the airport), or any (car, taxi and public compete). Leave out unless the user says: then any for a home in the US, public elsewhere.",
"title": "Mode"
},
"nights_max": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
],
"default": null,
"description": "Trip length in nights: longest. Default 14. 1 to 180.",
"title": "Nights Max"
},
"nights_min": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
],
"default": null,
"description": "Trip length in nights: shortest. Default 2. 1 to 180.",
"title": "Nights Min"
},
"one_way": {
"default": false,
"description": "True if the user wants one way only: then the trip length is ignored.",
"title": "One Way",
"type": "boolean"
},
"priority": {
"default": "balanced",
"description": "What matters most: budget (the cheapest door to door), time (the fastest) or balanced. Default balanced; the picks show the cheapest, the fastest and the balanced trip either way.",
"enum": [
"budget",
"time",
"balanced"
],
"title": "Priority",
"type": "string"
},
"travellers": {
"default": 1,
"description": "Adults travelling together. Default 1. 1 to 9.",
"title": "Travellers",
"type": "integer"
}
},
"required": [
"home",
"destinations",
"dates"
],
"title": "find_trips_toolArguments",
"type": "object"
},
"name": "find_trips"
},
{
"description": "Shows the cheapest month to travel from someone's home town to a place, for each airport within reach: the cheapest fare found for each month (or, where none is found, what that route usually costs) plus the train or bus to the airport and the transfer into the city. Takes a few seconds. Airports further than 8.5 hours from home are left out and named. Use it when the user's dates are flexible or they ask when it's cheapest to go; then call find_trips for the month they choose to get bookable trips. Needs the home town; months as \"2027-03\", at most 12. Prices per person, in the home currency unless `currency` is given.",
"inputSchema": {
"properties": {
"currency": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "ISO code (USD, GBP, EUR). Default: the home's.",
"title": "Currency"
},
"destinations": {
"description": "Where to: airport codes (LIS), city codes (NYC) or country codes (PT).",
"items": {
"type": "string"
},
"maxItems": 6,
"title": "Destinations",
"type": "array"
},
"home": {
"description": "The traveller's home town or village, e.g. \"New Haven\" or \"Hamden, US\". Not an airport. Add the country when the name is common.",
"title": "Home",
"type": "string"
},
"month_from": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "First month, \"2027-03\". Default: this month.",
"title": "Month From"
},
"month_to": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "Last month. Default: 6 months in all.",
"title": "Month To"
},
"one_way": {
"default": false,
"description": "True for one-way fares.",
"title": "One Way",
"type": "boolean"
}
},
"required": [
"home",
"destinations"
],
"title": "price_calendarArguments",
"type": "object"
},
"name": "price_calendar"
},
{
"description": "Tell Doorfarer's maker where Doorfarer fell short, so it can be fixed. Use it when a find_trips answer was wrong, confusing, or missing something you needed to help, or when the user asks you to pass something on. Write as the assistant that used the tool: what you asked for, what came back, what you expected instead. The report is about Doorfarer only, never about the user: leave out names, contact details, travel plans, reasons for travelling and anything the user said about themselves. Be specific and honest, including when the problem may have been your own call. Pass the search_id from the answer's last line. One report per search. If the user asked you to report something, tell them it's sent.",
"inputSchema": {
"properties": {
"kind": {
"description": "bug: something is wrong. confusing: right but hard to use. idea: something that would help.",
"enum": [
"bug",
"confusing",
"idea"
],
"title": "Kind",
"type": "string"
},
"search_id": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "The id from the find_trips answer this is about, e.g. \"s_7f3kq2m9xa\".",
"title": "Search Id"
},
"suggestion": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"description": "What would have helped. At most 400 characters.",
"title": "Suggestion"
},
"what_happened": {
"description": "What you asked for, what came back and what you expected. About Doorfarer, not the user. At most 600 characters.",
"title": "What Happened",
"type": "string"
}
},
"required": [
"kind",
"what_happened"
],
"title": "send_feedbackArguments",
"type": "object"
},
"name": "send_feedback"
},
{
"description": "Shows one trip from a find_trips answer step by step, door to door: leaving home, the train or bus to the airport, the airport wait, the flight, the transfer into the city and arrival, then the way back, with local times. Also gives the booking link and a calendar file (.ics) the user can add. Pass a trip id from the find_trips answer (\"Trip ids, row by row\", or a row's `id`). Use it when the user picks a trip or asks how the journey works. Ids are kept for 72 hours.",
"inputSchema": {
"properties": {
"trip_id": {
"description": "A trip id from the find_trips answer, e.g. \"t_k3m9q2xa\".",
"title": "Trip Id",
"type": "string"
}
},
"required": [
"trip_id"
],
"title": "trip_detailsArguments",
"type": "object"
},
"name": "trip_details"
}
]
}What the leaf hashes
{"body":"8ac51e4b4134f8ed870cf41b1596c69e8477ce97b35b4e7adb60fa05deb588b6","id":1286857,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793388653707506,"prev":null,"subject":"5fa5559a-68f0-497c-b5cc-4a977e67e360","subject_kind":"endpoint"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (243099 rows).
- 0xe214e951e63ac16338410913a23b08f6c9de7b46981cf65f888fb44ac948d58a
- 0x58120dcdee45365a36daf304a208dbcc28a078d4ea3717f36f68ea4dc8289475
- 0x67ffd22d1115866025743eb7998f802eca5d8c85d57eac5349378bd3d179f992
- 0x43739adb564fc4560cd2ae78e16f47911a30128a4405ed5141e3ea65a743a977
- 0xd85e575bbb49d2ed0df57348fbf78e51b88fc8ba76c930eb6582a06cc3385085
- 0x847fa27a4091782fe8eb3009b7c0a05ae14be609685d16ed7c2a1504d3197cf6
- 0x8b78f96a21aed4b2a626e92b5747f35e2b116de7a5f5bfee64bf5b9027c2690a
- 0xd3ddc2c8c5de639cc634a700bb9710727728b955da43a9d6cf1b072182e02983
- 0xb5e3f4c7e47880a2ff3d87207b8a51565ca960e5664f6a882cf1e12a53c6bf89
- 0x505eb3f9583bd709db5536535663dc92f19d7f1341748bef041d894b08a25249
- 0x7ae8cdc0d174db1e501814aa1f7dbb444271457ccf471940b4af5d7bdc4e1714
- 0xfac5be4cd9b1ae16cda761c5875ad5d49be70261833ac3841b137b851022c270
- 0xc1648b63331523f1ffba0502dc2754123aa7191c2d0b487849b227a545fbee34
- 0x3a7a0fa82cbf8d3f1546fc6f89c9a5f35e025db7170b70e3f2dcd72b4ebb0f8e
- 0xea7df1002501052c124b5aed2b1a5df3d59be54394c6a8539c86fad1df339a9e
- 0xfbe61dc2d59668ac573e5eab865747e21d38bf2fe4c64762beef01f1018a4dea
- 0x71e74c274b23c9047354edb6dcd2c654415e3986b8bd875dae992996ea12e22b
- 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d
- Day root
- 0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875
- Chained
- 0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822
- Published
- On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861