Evidence row 266552

What was observed

{
  "count": 8,
  "tools": [
    {
      "description": "Fetch the full detail for a single Cronus UI component or block by name: its source file(s) (path + content), its npm `dependencies`, its `registryDependencies` (other registry items it needs), and the `npx cronus-ui add <name>` install command. Works for both components and blocks.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "name": {
            "description": "The exact registry item name, e.g. 'button', 'data-table', or 'pricing'.",
            "type": "string"
          }
        },
        "required": [
          "name"
        ],
        "type": "object"
      },
      "name": "get_component"
    },
    {
      "description": "Return the Cronus UI visual taste file (DESIGN.md) for a theme × look. Use this before generating UI so the agent follows Aurora/Neutral dual identity, one primary CTA, hairline elevation, and look rules. compact fits a system prompt; extended is the repo file. Does not modify the project.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "format": {
            "description": "compact (~prompt) or extended (full DESIGN.md). Default extended.",
            "enum": [
              "compact",
              "extended"
            ],
            "type": "string"
          },
          "look": {
            "description": "Material: default, brutalist, or glass. Orthogonal to theme.",
            "enum": [
              "default",
              "brutalist",
              "glass"
            ],
            "type": "string"
          },
          "theme": {
            "description": "Palette: aurora (generated product), neutral (docs chrome), midnight, sunset, emerald.",
            "enum": [
              "aurora",
              "neutral",
              "midnight",
              "sunset",
              "emerald"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_design_context"
    },
    {
      "description": "Build the `npx cronus-ui add ...` command for one or more components/blocks. The CLI resolves and installs each item's registry dependencies automatically. This only returns the command string — to actually install, use `install_component`.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "names": {
            "description": "One or more registry item names to install, e.g. ['button', 'card', 'dialog'].",
            "items": {
              "type": "string"
            },
            "minItems": 1,
            "type": "array"
          }
        },
        "required": [
          "names"
        ],
        "type": "object"
      },
      "name": "get_install_command"
    },
    {
      "description": "List the installable Cronus UI blocks (registry items of type 'registry:block') — larger, composed sections such as hero, pricing, login, and dashboard. Returns each block's name, title, dependencies, and its `npx cronus-ui add <name>` install command.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "list_blocks"
    },
    {
      "description": "Return compact Hydra-ready cards for every component, block, variant, and template: name, short description, design style, palette, motion, intents, and the install command. No source files — cheap on tokens. Filter with `kind`. Use `match_catalog` to pick the best item for a prompt (login + smooth animation, etc.).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "kind": {
            "description": "Restrict to component, block, variant, or template cards.",
            "enum": [
              "component",
              "block",
              "variant",
              "template"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "list_catalog"
    },
    {
      "description": "List the installable Cronus UI components (registry items of type 'registry:ui'). Returns each component's name, a readable title, its npm and registry dependencies, and the `npx cronus-ui add <name>` command to install it.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "list_components"
    },
    {
      "description": "Two-query catalog match for low-context agents. Pass a free-text `query` (e.g. 'login page with smooth animation') and/or structured filters (`intent`, `motion`, `style`, `palette`). Returns `pick` (the recommended combination), `intent` hits, `motion` hits, and ranked `matches`. Cards carry description, design style, palette, motion, and intents — not source. Fetch source with `get_component` only after picking a name.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "intent": {
            "description": "Use-case intent: login, signup, pricing, dashboard, chart, form, …",
            "type": "string"
          },
          "kind": {
            "description": "Restrict to component, block, variant, or template.",
            "enum": [
              "component",
              "block",
              "variant",
              "template"
            ],
            "type": "string"
          },
          "limit": {
            "description": "Max hits per list. Default 8.",
            "maximum": 24,
            "minimum": 1,
            "type": "integer"
          },
          "motion": {
            "description": "Motion: none, snappy, smooth, cinematic.",
            "type": "string"
          },
          "palette": {
            "description": "Palette: semantic (follows theme), aurora, neutral, midnight, sunset, emerald.",
            "type": "string"
          },
          "query": {
            "description": "Natural-language request, e.g. 'login page with smooth animation'. Intent and motion are inferred from the text when those fields are omitted.",
            "type": "string"
          },
          "style": {
            "description": "Design style: default, editorial, operational, glass, brutalist.",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "match_catalog"
    },
    {
      "description": "Fuzzy-search Cronus UI components and blocks by name (case-insensitive substring match). Use this to find the right item before fetching its source with `get_component`.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "query": {
            "description": "Search text matched against component and block names, e.g. 'button' or 'card'.",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_registry"
    }
  ]
}

What the leaf hashes

{"body":"a0ef94cc9959cdfedec599eb414683f697149dbb544094d28f9e4f40226fcbfc","id":266552,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793035387453204,"prev":null,"subject":"ac49885a-5bc5-45b0-8ea7-eab982215d76","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xbbb55e65d8c040ce5f5abfc6c2690b9e81a4b1fa278b3bfdf75538bbc79f647d
2. 0x55e78a050075b603df2c6f919e5871a7aa55305ad6cd6ce3e1efe6ba28bf2054
3. 0x550c91f6fdc7dd45e73a25406ff008f974edb9e4af2390bf38e49a893fb9a47c
4. 0xf89e2b9e919f4b7a3494a26b1c17c7de4755e144b70e6463cb72ecbaa21e9783
5. 0xfd1dcbae16803eea976bc8b02e5e0498adb8a8ec90c7ae2349ea998e89181a06
6. 0x071a543b6141763fde27d203971ebf7dd7b06b1927871f26035a4ca619d1b53e
7. 0x68bd924c2568ca224af57f07527d37036b9945a7989bd654a599ec2cf355351d
8. 0xb1aaee237a9c663688b5eae1f3bd6ee5c4381b006ab8d16417ced719e0660320
9. 0x845e693323af85635cb326d470d8d418882858c3ef2b40b0d6d7903ca18b8db1
10. 0xff2d4f941fd0a20bb13feaaab2cfa12f33654e2b0ed185cce0c62986dd52c038
11. 0x66ed746e8b7893417ecf36cd9e7178eac8d5a36914238191ee21e14d3aa57d8d
12. 0x571bf2cc487a35d2ef7662b375d1fa9179fe0f6cab6f6cebdb1a6113d25f3c92
13. 0xd5b5bb5812612371a70171b2252d90e95bb0581ea5a3be198122adc8442e4f79
14. 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae