Agent Decision & Evidence Tools (MCP + x402)

Safe page reader

read_url

Read-only

Fetch a public web page as clean Markdown or text while refusing internal and private addresses, suitable for reading evidence before an agent acts on a link.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`url`	Yes
`format`	No		markdown

Output Schema

TableJSON Schema

Name	Required	Description
`url`	No
`date`	No
`note`	No
`tool`	No
`error`	No
`title`	No
`author`	No
`format`	No
`status`	No
`charged`	No	When present on an error, false means the failed result is uncharged.
`content`	No
`message`	No
`missing`	No
`receipt`	No
`settled`	No	When present on an error, false means no settlement occurred.
`unknown`	No
`accepted`	No
`sitename`	No
`final_url`	No
`retryable`	No
`truncated`	No
`error_code`	No
`extensions`	No
`fetched_at`	No
`status_code`	No
`did_you_mean`	No
`content_chars`	No
`missing_checks`	No
`partial_evidence`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed8 schema fields changedSep 6, 2026

addedInput schema / additionalProperties
```
Added value: +false
```

addedInput schema / properties / format / enum

Added value: +[
+  "markdown",
+  "text"
+]

removedInput schema / properties / format / title
```
Removed value: -"Format"
```
addedInput schema / properties / url / format
```
Added value: +"uri"
```
addedInput schema / properties / url / pattern
```
Added value: +"^https?://"
```
removedInput schema / properties / url / title
```
Removed value: -"Url"
```

removedInput schema / title

Removed value: -"read_url_toolArguments"

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "additionalProperties": true,
+  "anyOf": [
+    {
+      "required": [
+        "url",
+        "final_url",
+        "status",
+        "title",
+        "author",
+        "date",
+        "sitename",
+        "format",
+        "content",
+        "truncated",
+        "content_chars",
+        "fetched_at",
+        "note",
+        "receipt",
+        "extensions"
+      ]
+    },
+    {
+      "required": [
+        "error"
+      ]
+    }
+  ],
+  "description": "Structured result contract for read_url. A success satisfies the documented success branch. A domain or tool error includes error and is not a successful settlement; unpaid x402 requirements are carried by the transport wrapper.",
+  "properties": {
+    "accepted": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "author": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "charged": {
+      "description": "When present on an error, false means the failed result is uncharged.",
+      "type": "boolean"
+    },
+    "content": {
+      "type": "string"
+    },
+    "content_chars": {
+      "type": "integer"
+    },
+    "date": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "did_you_mean": {
+      "additionalProperties": true,
+      "type": [
+        "object",
+        "null"
+      ]
+    },
+    "error": {
+      "oneOf": [
+        {
+          "type": "string"
+        },
+        {
+          "additionalProperties": true,
+          "properties": {
+            "code": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "message": {
+              "type": "string"
+            },
+            "param": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "type": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "message"
+          ],
+          "type": "object"
+        }
+      ]
+    },
+    "error_code": {
+      "type": "string"
+    },
+    "extensions": {
+      "additionalProperties": true,
+      "properties": {
+        "delivery-receipt": {
+          "additionalProperties": true,
+          "properties": {
+            "how_to_verify": {
+              "type": "string"
+            },
+            "issued_at": {
+              "format": "date-time",
+              "type": "string"
+            },
+            "issuer": {
+              "type": "string"
+            },
+            "issuer_key": {
+              "type": "string"
+            },
+            "key_id": {
+              "type": "string"
+            },
+            "result_hash": {
+              "type": "string"
+            },
+            "service": {
+              "type": "string"
+            },
+            "signature": {
+              "type": "string"
+            },
+            "signed_message": {
+              "type": "string"
+            },
+            "standard": {
+              "const": "eucompliance-receipt/2",
+              "type": "string"
+            },
+            "subject": {
+              "type": "string"
+            },
+            "valid_until": {
+              "format": "date-time",
+              "type": "string"
+            },
+            "verify_url": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "standard",
+            "service",
+            "subject",
+            "result_hash",
+            "issued_at",
+            "valid_until",
+            "issuer",
+            "issuer_key",
+            "key_id",
+            "verify_url",
+            "how_to_verify",
+            "signature",
+            "signed_message"
+          ],
+          "type": "object"
+        }
+      },
+      "required": [
+        "delivery-receipt"
+      ],
+      "type": "object"
+    },
+    "fetched_at": {
+      "type": "string"
+    },
+    "final_url": {
+      "type": "string"
+    },
+    "format": {
+      "enum": [
+        "markdown",
+        "text"
+      ],
+      "type": "string"
+    },
+    "message": {
+      "type": "string"
+    },
+    "missing": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "missing_checks": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "note": {
+      "type": "string"
+    },
+    "partial_evidence": {
+      "additionalProperties": true,
+      "type": "object"
+    },
+    "receipt": {
+      "additionalProperties": true,
+      "properties": {
+        "how_to_verify": {
+          "type": "string"
+        },
+        "issued_at": {
+          "format": "date-time",
+          "type": "string"
+        },
+        "issuer": {
+          "type": "string"
+        },
+        "issuer_key": {
+          "type": "string"
+        },
+        "key_id": {
+          "type": "string"
+        },
+        "result_hash": {
+          "type": "string"
+        },
+        "service": {
+          "type": "string"
+        },
+        "signature": {
+          "type": "string"
+        },
+        "signed_message": {
+          "type": "string"
+        },
+        "standard": {
+          "const": "eucompliance-receipt/2",
+          "type": "string"
+        },
+        "subject": {
+          "type": "string"
+        },
+        "valid_until": {
+          "format": "date-time",
+          "type": "string"
+        },
+        "verify_url": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "standard",
+        "service",
+        "subject",
+        "result_hash",
+        "issued_at",
+        "valid_until",
+        "issuer",
+        "issuer_key",
+        "key_id",
+        "verify_url",
+        "how_to_verify",
+        "signature",
+        "signed_message"
+      ],
+      "type": "object"
+    },
+    "retryable": {
+      "type": "boolean"
+    },
+    "settled": {
+      "description": "When present on an error, false means no settlement occurred.",
+      "type": "boolean"
+    },
+    "sitename": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "status": {
+      "type": "integer"
+    },
+    "status_code": {
+      "type": "integer"
+    },
+    "title": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "tool": {
+      "type": "string"
+    },
+    "truncated": {
+      "type": "boolean"
+    },
+    "unknown": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "url": {
+      "type": "string"
+    }
+  },
+  "type": "object"
+}

AddedAug 3, 2026

TDQS

A4.7/5.0

Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Beyond the readOnlyHint and destructiveHint annotations, the description discloses a key behavioral guardrail: it refuses internal and private addresses. It also states that the output is a cleaned Markdown or text representation, which tells the agent what kind of content to expect. This adds meaningful behavioral context beyond the annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

A single sentence that front-loads the core action and output format, then adds the safety constraint and usage context. Every clause earns its place with no redundancy or filler.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple two-parameter fetch tool with a rich annotation set and an output schema, the description covers the essential operational context: what it fetches, what it returns, what it refuses, and when to use it. Nothing critical is missing for an agent to invoke it correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so the description must compensate. It effectively maps 'a public web page' to the url parameter and 'Markdown or text' to the format parameter, while adding the 'clean' transformation detail. It does not explicitly mention the format default, but the schema already declares that, so the description provides adequate semantic support.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb ('Fetch'), the resource ('a public web page'), the output format ('clean Markdown or text'), and a distinctive safety scope ('refusing internal and private addresses'). This makes it immediately distinguishable from the many finance and compliance-focused siblings in the tool list.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The phrase 'suitable for reading evidence before an agent acts on a link' provides a clear and concrete usage context. It does not name an alternative tool or explicitly say when not to use it, but the context is strong enough for an agent to select it appropriately.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

All Agent Decision & Evidence Tools (MCP + x402) tools Inspect

Try in Browser

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Glama MCP Gateway

Add one secure layer between your agents and this server.