← The evidence ledger
Evidence row 291624
Observed , by probe.mcp/1.
- Kind
- mcp.tools
- About
- endpoint a4cb39d5-acf0-4ed5-8f85-3d8e00d12eb6
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 70ed85f8c074db5f36b53fb3b4b4f53d8d551dbb7739301f35d35d3481da8e84
- Leaf
- 0x5d19bf3c9ddbb03e60f2ff73a378a62e56471b23d354e9a0e756174f57872e13
What was observed
{
"count": 15,
"tools": [
{
"description": "Dutch courses, university Dutch departments, CNaVT exam centres and Dutch schools for children near a capital city (within 40 km), with the nearest option when nothing is local. Also says where the basic civic integration exam abroad (inburgering, level A1) is taken for a country: the Dutch embassy or consulate, or the country to go to when it is not held there (capital.civic_exam). Pass a capital (e.g. Tokyo) or an ISO country code (e.g. JP). With no arguments, lists the capitals that have a local option. Use it when someone lives outside the Netherlands and Belgium or asks about Dutch classes, the CNaVT exam, the civic integration exam abroad or a Dutch school in another country.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"capital": {
"maxLength": 80,
"minLength": 2,
"type": "string"
},
"country": {
"maxLength": 2,
"minLength": 2,
"type": "string"
}
},
"type": "object"
},
"name": "tdd_abroad"
},
{
"description": "Which provider types a Dutch or Flemish city lacks in the index, for example no university course. Use it to explain when to look online or in a nearby city.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"city": {
"maxLength": 80,
"minLength": 2,
"type": "string"
}
},
"required": [
"city"
],
"type": "object"
},
"name": "tdd_city_gaps"
},
{
"description": "Side-by-side comparison of two schools, apps or tutors by slug, with a plain-language verdict. Use it after a search or shortlist when someone is choosing between two.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"a": {
"maxLength": 120,
"minLength": 1,
"type": "string"
},
"b": {
"maxLength": 120,
"minLength": 1,
"type": "string"
}
},
"required": [
"a",
"b"
],
"type": "object"
},
"name": "tdd_compare"
},
{
"description": "The public policy for when Dutch Fluency products appear in results and how independent alternatives are guaranteed. Use it when someone asks whether the directory is independent.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {},
"type": "object"
},
"name": "tdd_conflict_ledger"
},
{
"description": "Data-quality signals in the index: stub names and missing prices or lesson counts. Scrape health, not claims about providers. Use it only for maintenance or data questions.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {},
"type": "object"
},
"name": "tdd_death_watch"
},
{
"description": "Planning ranges (not a quote) for Dutch training for a team, from headcount, months, track and cities. Use it for HR or employer questions about cost.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"cities": {
"items": {
"type": "string"
},
"maxItems": 20,
"type": "array"
},
"headcount": {
"maximum": 5000,
"minimum": 1,
"type": "integer"
},
"months": {
"maximum": 36,
"minimum": 1,
"type": "integer"
},
"track": {
"enum": [
"survival",
"workplace",
"exam"
],
"type": "string"
}
},
"required": [
"headcount"
],
"type": "object"
},
"name": "tdd_employer_budget"
},
{
"description": "A shareable, independent study plan (name, city, goal, weeks) that a learner can show an employer or attach to paperwork. Not legal advice.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"city": {
"maxLength": 80,
"type": "string"
},
"goal": {
"maxLength": 80,
"type": "string"
},
"name": {
"maxLength": 120,
"type": "string"
},
"weeks": {
"maximum": 104,
"minimum": 1,
"type": "integer"
}
},
"type": "object"
},
"name": "tdd_evidence_pack"
},
{
"description": "Snapshot of the Dutch Learning Graph: providers, exams and goals and how they connect. slim=true returns counts and types only. Use it for data or research tasks, not for recommendations.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"slim": {
"type": "boolean"
}
},
"type": "object"
},
"name": "tdd_graph"
},
{
"description": "What The Dutch Directory covers: listing counts by type, the Verified Pro count, doctrine and endpoint URLs. Call it when you need to know the scope of the directory before searching.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {},
"type": "object"
},
"name": "tdd_meta"
},
{
"description": "Works backward from an arrival, inburgering or exam date to what to start when: courses, exam booking and tutor hours. Use it when someone has a fixed date.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"arrive_or_exam_date": {
"maxLength": 32,
"minLength": 8,
"type": "string"
},
"city": {
"maxLength": 80,
"type": "string"
},
"goal": {
"maxLength": 80,
"type": "string"
}
},
"required": [
"arrive_or_exam_date"
],
"type": "object"
},
"name": "tdd_move_plan"
},
{
"description": "A week-by-week study path that points to real courses, tutors, apps and trials for a city, goal, current level, weekly hours and deadline. Use it when someone asks how to get from one level to another or how to prepare for an exam. Not a progress tracker; practice links to Dutch Fluency always come with alternatives.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"city": {
"maxLength": 80,
"type": "string"
},
"goal": {
"maxLength": 80,
"type": "string"
},
"hours_per_week": {
"maximum": 40,
"minimum": 1,
"type": "number"
},
"level": {
"maxLength": 8,
"type": "string"
},
"move_or_exam_date": {
"maxLength": 32,
"type": "string"
}
},
"type": "object"
},
"name": "tdd_path"
},
{
"description": "Search every way to learn Dutch: schools, universities, apps, podcasts, exams and online tutors. Use it when someone asks where or how to learn Dutch. Filters: city (Dutch or Flemish, e.g. Utrecht, Den Haag, Antwerpen), type, goal (e.g. inburgering, NT2, business, conversation), cefr, online, verified_pro, platform, kind. Each result has directory_url and primary_url to cite.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"cefr": {
"maxLength": 4,
"type": "string"
},
"city": {
"maxLength": 80,
"type": "string"
},
"goal": {
"maxLength": 80,
"type": "string"
},
"kind": {
"enum": [
"all",
"provider",
"tutor"
],
"type": "string"
},
"limit": {
"maximum": 50,
"minimum": 1,
"type": "integer"
},
"online": {
"type": "boolean"
},
"platform": {
"enum": [
"italki",
"preply",
"verbling",
"languatalk",
"verbalplanet",
"classgap",
"superprof"
],
"type": "string"
},
"q": {
"maxLength": 200,
"type": "string"
},
"type": {
"maxLength": 40,
"type": "string"
},
"verified_pro": {
"type": "boolean"
}
},
"type": "object"
},
"name": "tdd_search"
},
{
"description": "A short list of the best-fit options for a city and goal, ranked by editorial fit score (not paid). Use it when someone wants a few recommendations rather than every option. A Dutch Fluency item always comes with independent alternatives.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"city": {
"maxLength": 80,
"type": "string"
},
"goal": {
"maxLength": 80,
"type": "string"
},
"kind": {
"enum": [
"all",
"provider",
"tutor"
],
"type": "string"
},
"limit": {
"maximum": 12,
"minimum": 3,
"type": "integer"
},
"type": {
"maxLength": 40,
"type": "string"
},
"verified_pro": {
"type": "boolean"
}
},
"type": "object"
},
"name": "tdd_shortlist"
},
{
"description": "Live market numbers: listing counts by type, Verified Pro rates and median tutor prices. Use it for questions about the Dutch-learning market as a whole.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {},
"type": "object"
},
"name": "tdd_stats"
},
{
"description": "Online Dutch tutors from italki, Preply, Verbling, LanguaTalk, Verbalplanet, Classgap and Superprof, Verified Pros (3,000+ lessons and a 4.9+ rating) first. Use it for private lessons, conversation practice or a tutor on a schedule; filter by platform or free text.",
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"limit": {
"maximum": 50,
"minimum": 1,
"type": "integer"
},
"offset": {
"maximum": 500,
"minimum": 0,
"type": "integer"
},
"platform": {
"enum": [
"italki",
"preply",
"verbling",
"languatalk",
"verbalplanet",
"classgap",
"superprof"
],
"type": "string"
},
"q": {
"maxLength": 200,
"type": "string"
},
"verified_pro": {
"type": "boolean"
}
},
"type": "object"
},
"name": "tdd_tutors"
}
]
}What the leaf hashes
{"body":"70ed85f8c074db5f36b53fb3b4b4f53d8d551dbb7739301f35d35d3481da8e84","id":291624,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793048216307713,"prev":null,"subject":"a4cb39d5-acf0-4ed5-8f85-3d8e00d12eb6","subject_kind":"endpoint"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
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- 0x6025a84bbf412813ffd9bb66d5d3e203b2a35c3cebd75294c093c0f6426acd3d
- 0xf5c626e30e4ade9fc33b819ed022da91a7247d7a9ceef2ac7016e313ebdcf239
- 0xe83b2a73139a45ac5e787f5f8d00e2fdb51ec0acd6751a60cbf0f65dfcfc455f
- 0x71c75f9312be1c838a554f724b6fc57894e7c4486ab7e013b6a6a8d65cfaebea
- 0xb91bf0ba3ebff769d1b88f93fcb076477149787a7e31c3c28ce4fe8823b7c144
- 0x2121cc2dbcb8663af57743dc445c8a59e5bbfffe89703f0606c9843f0d35aff8
- 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
- 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
- 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
- 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
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- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae