Evidence row 264267

What was observed

{
  "count": 8,
  "tools": [
    {
      "description": "Ranks open HackList opportunities for a specific builder and explains each pick. Favours specific briefs (a named API, dataset, metric or protocol) over generic 'build anything with AI' events, weighs prize size and whether it is real cash, deadline runway and accessibility, collapses duplicate listings, and drops events the builder can't enter (students only, region-locked, in-person, partners only). Returns why each one ranks and what to watch out for.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "can_travel": {
            "description": "false = drop in-person-only events.",
            "type": "boolean"
          },
          "cash_only": {
            "default": false,
            "type": "boolean"
          },
          "country": {
            "description": "Where the builder is based, for region-locked events.",
            "type": "string"
          },
          "include_generic": {
            "default": false,
            "description": "Set true to stop down-ranking generic briefs.",
            "type": "boolean"
          },
          "interests": {
            "description": "e.g. ['agents', 'defi', 'fintech', 'africa']",
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "is_student": {
            "type": "boolean"
          },
          "kind": {
            "default": "hackathon",
            "enum": [
              "hackathon",
              "program",
              "grant",
              "bounty",
              "job",
              "any"
            ],
            "type": "string"
          },
          "limit": {
            "default": 8,
            "maximum": 25,
            "minimum": 1,
            "type": "integer"
          },
          "max_days_left": {
            "maximum": 9007199254740991,
            "minimum": 1,
            "type": "integer"
          },
          "min_days_left": {
            "default": 2,
            "maximum": 9007199254740991,
            "minimum": 0,
            "type": "integer"
          },
          "skills": {
            "description": "e.g. ['solidity', 'python', 'langgraph', 'zk']",
            "items": {
              "type": "string"
            },
            "type": "array"
          }
        },
        "type": "object"
      },
      "name": "best_opportunities"
    },
    {
      "description": "Open listings whose deadline is within N days, soonest first, with the prize and whether it's worth a sprint.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "days": {
            "default": 7,
            "maximum": 60,
            "minimum": 0,
            "type": "integer"
          },
          "limit": {
            "default": 15,
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "min_prize_usd": {
            "minimum": 0,
            "type": "number"
          }
        },
        "type": "object"
      },
      "name": "closing_soon"
    },
    {
      "description": "Fetch the full HackList listing for an id returned by search. (Compatibility tool for ChatGPT connectors and deep research.)",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "id": {
            "description": "Listing id from search",
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "fetch"
    },
    {
      "description": "Full details for one HackList listing: brief, prize (with USD estimate and cash vs credits), deadline and days left, when it was posted/updated on HackList, apply link, eligibility traps (students only, region-locked, in-person, approval needed) and duplicate listings. Accepts a HackList URL, an id, or a title.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "ref": {
            "description": "HackList URL, listing id, or title (e.g. 'Qloo Agentic Hackathon').",
            "minLength": 2,
            "type": "string"
          }
        },
        "required": [
          "ref"
        ],
        "type": "object"
      },
      "name": "get_opportunity"
    },
    {
      "description": "A snapshot of HackList right now: how many open listings by type and category, total listed prize money, the biggest prizes, duplicate listings found, and how fresh/complete this server's data is. Pass refresh=true to re-fetch.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "refresh": {
            "default": false,
            "type": "boolean"
          }
        },
        "type": "object"
      },
      "name": "hacklist_overview"
    },
    {
      "description": "Search open HackList hackathons, grants and programs by keyword. Returns ids to pass to fetch. (Compatibility tool for ChatGPT connectors and deep research.)",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "query": {
            "description": "Search keywords",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search"
    },
    {
      "description": "Search and filter HackList's AI & Web3 hackathons, grants, bounties and programs. Filters by keyword, type, category, format, prize, how soon it closes and how recently it was posted or updated. Duplicate listings of the same event are collapsed by default. Use get_opportunity for the full brief and eligibility details of a result.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "cash_only": {
            "default": false,
            "description": "Exclude rewards that are mostly credits or in-kind.",
            "type": "boolean"
          },
          "category": {
            "default": "any",
            "enum": [
              "ai",
              "web3",
              "any"
            ],
            "type": "string"
          },
          "closes_within_days": {
            "maximum": 9007199254740991,
            "minimum": 0,
            "type": "integer"
          },
          "collapse_duplicates": {
            "default": true,
            "type": "boolean"
          },
          "format": {
            "default": "any",
            "enum": [
              "online",
              "in-person",
              "hybrid",
              "any"
            ],
            "type": "string"
          },
          "free_only": {
            "default": false,
            "type": "boolean"
          },
          "include_closed": {
            "default": false,
            "description": "Also search past listings from HackList's archive (slower the first time).",
            "type": "boolean"
          },
          "kind": {
            "default": "any",
            "enum": [
              "hackathon",
              "program",
              "grant",
              "bounty",
              "job",
              "any"
            ],
            "type": "string"
          },
          "limit": {
            "default": 10,
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "min_prize_usd": {
            "description": "Minimum headline prize in USD (approximate conversion for other currencies).",
            "minimum": 0,
            "type": "number"
          },
          "query": {
            "description": "Keywords, e.g. 'zk privacy', 'trading bot', 'Solana', 'computer vision'.",
            "type": "string"
          },
          "sort": {
            "default": "relevance",
            "enum": [
              "relevance",
              "deadline",
              "prize",
              "newest"
            ],
            "type": "string"
          },
          "updated_within_days": {
            "description": "Only listings posted or updated on HackList in the last N days.",
            "maximum": 9007199254740991,
            "minimum": 0,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "search_opportunities"
    },
    {
      "description": "Listings posted or updated on HackList in the last N days, newest first. Useful for 'what got added this week'. Uses HackList's own posted date when the site exposes it, otherwise its sitemap last-modified time.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "days": {
            "default": 7,
            "maximum": 90,
            "minimum": 1,
            "type": "integer"
          },
          "limit": {
            "default": 15,
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "open_only": {
            "default": true,
            "type": "boolean"
          }
        },
        "type": "object"
      },
      "name": "whats_new"
    }
  ]
}

What the leaf hashes

{"body":"54678461813c69d70739fa8bd8b099d440af1dce38784f32ec7ee3b0185ec21c","id":264267,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793034067379474,"prev":null,"subject":"41f8923f-a0ba-41b7-bd2e-8945a6ffc76c","subject_kind":"endpoint"}

Proof

Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.