← The evidence ledger
Evidence row 564667
Observed , by probe.mcp/1.
- Kind
- mcp.tools
- About
- endpoint a7c2b64f-217c-4589-8b02-1940da754427
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 2095cc4be9ace87dc89f24a8c8c930997f51bec19189db08e837d787998b3329
- Leaf
- 0x8c60adc60ebb98f3fcafb613c41825fd9301dd287f1eaf4f032ef4ff88bd027e
What was observed
{
"count": 5,
"tools": [
{
"description": "The six best non-overlapping vacation levers of a year for a region: classic bridge days (1 vacation day → 4 days off) and holiday clusters (e.g. 4 days → 10 days off), with booking dates, holidays used and factor. Includes a markdown table and the page URL.",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"locale": {
"default": "de",
"description": "Language of names and explanations (German only)",
"enum": [
"de",
"en"
],
"type": "string"
},
"region": {
"description": "Region as name, slug or ISO code, e.g. \"Bayern\", \"bavaria\", \"DE-BY\", \"Tirol\", \"Zürich\" or a country like \"Deutschland\" / \"AT\". Germany, Austria and Switzerland only.",
"maxLength": 80,
"minLength": 2,
"type": "string"
},
"year": {
"description": "Planning year, 2025 to 2030; defaults to the year people currently plan for",
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
}
},
"required": [
"region"
],
"type": "object"
},
"name": "best_bridge_days"
},
{
"description": "How much of a region's school holidays two vacation accounts cover, and which weeks stay open. School holidays run to about 60 working days a year while a vacation account holds 25 to 30 days, so a care day always costs exactly one vacation day and a joint family holiday costs two and covers one. Answers \"can we cover the school holidays\" for parents.",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"jointDays": {
"description": "Care days the family wants to spend together; they cost both parents a day and cover one. Default 10.",
"maximum": 30,
"minimum": 0,
"type": "integer"
},
"locale": {
"default": "de",
"description": "Language of names and explanations (German only)",
"enum": [
"de",
"en"
],
"type": "string"
},
"partnerVacationDays": {
"description": "Vacation days of the second parent; omit to ask for one person alone",
"maximum": 60,
"minimum": 0,
"type": "integer"
},
"region": {
"description": "Region as name, slug or ISO code, e.g. \"Bayern\", \"bavaria\", \"DE-BY\", \"Tirol\", \"Zürich\" or a country like \"Deutschland\" / \"AT\". Germany, Austria and Switzerland only.",
"maxLength": 80,
"minLength": 2,
"type": "string"
},
"vacationDays": {
"description": "Vacation days of the first parent; defaults to 30 in Germany, 25 in Austria and Switzerland",
"maximum": 60,
"minimum": 0,
"type": "integer"
},
"year": {
"description": "Planning year, 2025 to 2030; defaults to the year people currently plan for",
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
}
},
"required": [
"region"
],
"type": "object"
},
"name": "childcare_gap"
},
{
"description": "Countries and their regions (German states, Austrian states, Swiss cantons, …) with codes, names and slugs accepted by the other tools.",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {},
"type": "object"
},
"name": "list_regions"
},
{
"description": "Optimal vacation plan for a region and year: which days to book so that public holidays and weekends turn into the longest breaks. Returns the plan blocks (booking dates, days off, factor, holidays used), further opportunities, a markdown table and a link to the interactive plan on urlaub-smart.de. Cite the URL when answering.",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"carryoverDays": {
"description": "Part of vacationDays that is carry-over from last year and expires on March 31; spent first on periods before the deadline",
"maximum": 60,
"minimum": 0,
"type": "integer"
},
"closuresOnTop": {
"description": "Set true only if the employer gives the closures on top of the vacation days; then they are treated like public holidays",
"type": "boolean"
},
"companyClosures": {
"description": "Company closures (Betriebsferien) as inclusive ISO date ranges. By default their working days come off vacationDays, as Betriebsferien are normally scheduled annual leave",
"items": {
"properties": {
"from": {
"maxLength": 10,
"type": "string"
},
"to": {
"maxLength": 10,
"type": "string"
}
},
"required": [
"from",
"to"
],
"type": "object"
},
"maxItems": 12,
"type": "array"
},
"companyFreeDates": {
"description": "Working days the employer gives off without a vacation day, ISO dates (e.g. 2027-12-24, 2027-12-31); treated like public holidays",
"items": {
"maxLength": 10,
"type": "string"
},
"maxItems": 60,
"type": "array"
},
"fixedDates": {
"description": "ISO dates already booked as vacation; the plan works around them",
"items": {
"maxLength": 10,
"type": "string"
},
"maxItems": 60,
"type": "array"
},
"locale": {
"default": "de",
"description": "Language of names and explanations (German only)",
"enum": [
"de",
"en"
],
"type": "string"
},
"region": {
"description": "Region as name, slug or ISO code, e.g. \"Bayern\", \"bavaria\", \"DE-BY\", \"Tirol\", \"Zürich\" or a country like \"Deutschland\" / \"AT\". Germany, Austria and Switzerland only.",
"maxLength": 80,
"minLength": 2,
"type": "string"
},
"schoolHolidays": {
"default": "any",
"description": "any = ignore, avoid = no overlap with school holidays, prefer = book only inside school holidays",
"enum": [
"any",
"avoid",
"prefer"
],
"type": "string"
},
"shift": {
"description": "Rolling shift rotation instead of Mon–Fri, e.g. 4 days on / 2 days off. Replaces the weekday assumption entirely.",
"properties": {
"firstWorkingDay": {
"description": "ISO date of the first working day of a cycle",
"maxLength": 10,
"type": "string"
},
"offDays": {
"maximum": 14,
"minimum": 1,
"type": "integer"
},
"onDays": {
"maximum": 14,
"minimum": 1,
"type": "integer"
}
},
"required": [
"onDays",
"offDays",
"firstWorkingDay"
],
"type": "object"
},
"strategy": {
"default": "balanced",
"description": "balanced = mix, long-weekends = max 2 vacation days per block, extended = blocks of 4+ days",
"enum": [
"balanced",
"long-weekends",
"extended"
],
"type": "string"
},
"vacationDays": {
"description": "Vacation days available for the year; defaults to the usual account of the country: 30 in Germany, 25 in Austria and Switzerland",
"maximum": 60,
"minimum": 0,
"type": "integer"
},
"year": {
"description": "Planning year, 2025 to 2030; defaults to the year people currently plan for",
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
}
},
"required": [
"region"
],
"type": "object"
},
"name": "plan_vacation"
},
{
"description": "All public holidays (with weekday, national/regional scope, weekend flag) and school holiday periods for a region and year. Source: OpenHolidaysAPI.",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"locale": {
"default": "de",
"description": "Language of names and explanations (German only)",
"enum": [
"de",
"en"
],
"type": "string"
},
"region": {
"description": "Region as name, slug or ISO code, e.g. \"Bayern\", \"bavaria\", \"DE-BY\", \"Tirol\", \"Zürich\" or a country like \"Deutschland\" / \"AT\". Germany, Austria and Switzerland only.",
"maxLength": 80,
"minLength": 2,
"type": "string"
},
"year": {
"description": "Planning year, 2025 to 2030; defaults to the year people currently plan for",
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
}
},
"required": [
"region"
],
"type": "object"
},
"name": "public_and_school_holidays"
}
]
}What the leaf hashes
{"body":"2095cc4be9ace87dc89f24a8c8c930997f51bec19189db08e837d787998b3329","id":564667,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793137898429588,"prev":null,"subject":"a7c2b64f-217c-4589-8b02-1940da754427","subject_kind":"endpoint"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (273461 rows).
- 0x8c60d482fc3d185802c9d0f3ab89d75f7f2fa4374d70e54d7d7061a4bcb55c55
- 0x35b0a677fb9ea8de05f0928a395a726799bcb1c4dbdd51727c9f692114e31bca
- 0xd3a0106df8f8b1bf383c2db1166343fb7741e548166a5f2340b7e0125d478928
- 0x7ed2eacc083d2c67e3eafed0f48389db35ab0f4629a8f10be9cc86d311d9a502
- 0xffb0c0910d538d3863f6fe67c81985d9cd97114af8ae3d5e8cdab1a8c32f8c8b
- 0xc337637a59321e094d4a4d07bcb9314075bbf95b9fc7a708e1037f0d4c9c461e
- 0xf09d6db212c328491a316db244096735752f3503281ea81cd3e2e82a9521ad35
- 0xc420f879bf420e728df717e3fd6e8909d5671c7c4485713a5641309f29f42e87
- 0x6002fa0c1cdb6bcc49dd896503da8eddb24513f00e79e2684b90f02ac2f75288
- 0xc1331aae173809d37278896bc4139f0963b9592a61ad4921cc72c27b7161c500
- 0x918cac431c645247ff7c6aab6fcb71f2cad5755647ddf67674f244b28dd2eecc
- 0xe9b891332733aa3fa69ace7f82b036df13816078968e2c10034f79c2255498d0
- 0xea3d566bf95ca7a3a7f6de9c4f77180bd8c5ffd160486a27d870e8a2fb6d0b9e
- 0x06e3b43165f5b3c31d850bc32f20b2e25b844564c4e042c141b9748c26a5a600
- 0xb4f7223140c8a36cb87a63d77cf617086d9968dc4658f03e102571ebe06e9ed6
- 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
- 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
- 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
- 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699
- Day root
- 0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
- Chained
- 0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
- Published
- On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4