agentwebmap

List domains

list_domains

Read-onlyIdempotent

Ranked listing of the directory (verified first, then authority). Use verified_only to get only owner-verified sites.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`page`	No
`detail`	No	Compact consumer fields by default; full adds owner profile, claims and listing metadata.	compact
`category`	No	Filter by inferred topic ID from list_categories. Topics describe publisher metadata, not capabilities or correctness.
`per_page`	No
`capability`	No	Filter to sites explicitly publishing an MCP endpoint link. Publisher declaration alone does not prove availability.
`verified_only`	No	Only domains whose owner has verified them.
`include_unlisted`	No	Also return low-authority (unlisted) entries.

Output Schema

TableJSON Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

Changed5 schema fields changedOct 19, 2026

addedInput schema / properties / capability

Added value: +{
+  "description": "Filter to sites explicitly publishing an MCP endpoint link. Publisher declaration alone does not prove availability.",
+  "enum": [
+    "mcp"
+  ],
+  "type": "string"
+}

addedInput schema / properties / category

Added value: +{
+  "description": "Filter by inferred topic ID from list_categories. Topics describe publisher metadata, not capabilities or correctness.",
+  "enum": [
+    "ai-ml",
+    "developer-tools",
+    "infrastructure",
+    "data-analytics",
+    "cybersecurity",
+    "finance-payments",
+    "ecommerce",
+    "productivity",
+    "marketing",
+    "education",
+    "healthcare",
+    "media",
+    "design",
+    "gaming",
+    "travel",
+    "community",
+    "legal",
+    "recruiting-careers",
+    "industrial-manufacturing",
+    "real-estate",
+    "arts-culture",
+    "sports-fitness",
+    "food-dining",
+    "automotive",
+    "government-public-services",
+    "science-research"
+  ],
+  "type": "string"
+}

addedInput schema / properties / detail

Added value: +{
+  "default": "compact",
+  "description": "Compact consumer fields by default; full adds owner profile, claims and listing metadata.",
+  "enum": [
+    "compact",
+    "full"
+  ],
+  "type": "string"
+}

changedInput schema / properties / per_page / default
```
Previous value: -50New value: +10
```

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "anyOf": [
+    {
+      "additionalProperties": false,
+      "properties": {
+        "page": {
+          "type": "integer"
+        },
+        "per_page": {
+          "type": "integer"
+        },
+        "query": {
+          "type": "string"
+        },
+        "results": {
+          "items": {
+            "additionalProperties": false,
+            "properties": {
+              "agent_terms": {
+                "anyOf": [
+                  {
+                    "additionalProperties": false,
+                    "properties": {
+                      "attribution": {
+                        "enum": [
+                          "required",
+                          "appreciated",
+                          "none"
+                        ],
+                        "type": "string"
+                      },
+                      "attribution_text": {
+                        "maxLength": 200,
+                        "type": "string"
+                      },
+                      "automated_access": {
+                        "enum": [
+                          "welcome",
+                          "limited",
+                          "ask",
+                          "not_allowed"
+                        ],
+                        "type": "string"
+                      },
+                      "notes": {
+                        "maxLength": 500,
+                        "type": "string"
+                      },
+                      "pricing": {
+                        "enum": [
+                          "free",
+                          "freemium",
+                          "paid"
+                        ],
+                        "type": "string"
+                      },
+                      "pricing_url": {
+                        "type": "string"
+                      },
+                      "rate_limit": {
+                        "maxLength": 100,
+                        "type": "string"
+                      },
+                      "terms_url": {
+                        "type": "string"
+                      }
+                    },
+                    "required": [],
+                    "type": "object"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "authority": {
+                "type": [
+                  "integer",
+                  "null"
+                ]
+              },
+              "badge": {
+                "type": "string"
+              },
+              "capabilities": {
+                "description": "Publisher-declared capabilities. An MCP declaration does not prove availability or protocol compatibility.",
+                "items": {
+                  "enum": [
+                    "mcp"
+                  ],
+                  "type": "string"
+                },
+                "type": "array",
+                "uniqueItems": true
+              },
+              "capability_evidence": {
+                "items": {
+                  "additionalProperties": false,
+                  "properties": {
+                    "id": {
+                      "const": "mcp"
+                    },
+                    "source_url": {
+                      "type": "string"
+                    },
+                    "status": {
+                      "const": "publisher_declared"
+                    },
+                    "url": {
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "id",
+                    "url",
+                    "source_url",
+                    "status"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "categories": {
+                "description": "Inferred topic IDs from publisher metadata; empty means unclassified.",
+                "items": {
+                  "enum": [
+                    "ai-ml",
+                    "developer-tools",
+                    "infrastructure",
+                    "data-analytics",
+                    "cybersecurity",
+                    "finance-payments",
+                    "ecommerce",
+                    "productivity",
+                    "marketing",
+                    "education",
+                    "healthcare",
+                    "media",
+                    "design",
+                    "gaming",
+                    "travel",
+                    "community",
+                    "legal",
+                    "recruiting-careers",
+                    "industrial-manufacturing",
+                    "real-estate",
+                    "arts-culture",
+                    "sports-fitness",
+                    "food-dining",
+                    "automotive",
+                    "government-public-services",
+                    "science-research"
+                  ],
+                  "type": "string"
+                },
+                "maxItems": 5,
+                "type": "array",
+                "uniqueItems": true
+              },
+              "categorized_at": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "category_evidence": {
+                "items": {
+                  "additionalProperties": false,
+                  "properties": {
+                    "confidence": {
+                      "description": "Deterministic rule strength, not a calibrated probability.",
+                      "maximum": 1,
+                      "minimum": 0,
+                      "type": "number"
+                    },
+                    "evidence": {
+                      "items": {
+                        "type": "string"
+                      },
+                      "type": "array"
+                    },
+                    "id": {
+                      "enum": [
+                        "ai-ml",
+                        "developer-tools",
+                        "infrastructure",
+                        "data-analytics",
+                        "cybersecurity",
+                        "finance-payments",
+                        "ecommerce",
+                        "productivity",
+                        "marketing",
+                        "education",
+                        "healthcare",
+                        "media",
+                        "design",
+                        "gaming",
+                        "travel",
+                        "community",
+                        "legal",
+                        "recruiting-careers",
+                        "industrial-manufacturing",
+                        "real-estate",
+                        "arts-culture",
+                        "sports-fitness",
+                        "food-dining",
+                        "automotive",
+                        "government-public-services",
+                        "science-research"
+                      ],
+                      "type": "string"
+                    },
+                    "source": {
+                      "const": "publisher_metadata"
+                    }
+                  },
+                  "required": [
+                    "id",
+                    "confidence",
+                    "evidence",
+                    "source"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "category_version": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "claim": {
+                "additionalProperties": false,
+                "properties": {
+                  "benefits": {
+                    "items": {
+                      "type": "string"
+                    },
+                    "type": "array"
+                  },
+                  "docs": {
+                    "type": "string"
+                  },
+                  "hint": {
+                    "type": "string"
+                  },
+                  "mcp": {
+                    "type": "string"
+                  },
+                  "verification": {
+                    "type": "string"
+                  },
+                  "verify": {
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "hint",
+                  "verification",
+                  "verify",
+                  "docs",
+                  "mcp",
+                  "benefits"
+                ],
+                "type": "object"
+              },
+              "contact": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "country": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "description": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "domain": {
+                "type": "string"
+              },
+              "evidence": {
+                "items": {
+                  "additionalProperties": true,
+                  "properties": {
+                    "excerpt": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    },
+                    "source_url": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    },
+                    "title": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    },
+                    "url": {
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "url"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "first_seen": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "last_checked": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "links": {
+                "type": [
+                  "integer",
+                  "null"
+                ]
+              },
+              "llms_full_txt": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "llms_txt": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "match_score": {
+                "type": "number"
+              },
+              "nested_llms_txt": {
+                "items": {
+                  "type": "string"
+                },
+                "type": "array"
+              },
+              "rank": {
+                "type": [
+                  "integer",
+                  "null"
+                ]
+              },
+              "registered_at": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "sections": {
+                "type": [
+                  "integer",
+                  "null"
+                ]
+              },
+              "status": {
+                "enum": [
+                  "pending",
+                  "valid",
+                  "invalid",
+                  "unreachable"
+                ],
+                "type": "string"
+              },
+              "summary": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "tags": {
+                "items": {
+                  "type": "string"
+                },
+                "type": "array"
+              },
+              "tier": {
+                "enum": [
+                  "featured",
+                  "listed",
+                  "unlisted",
+                  "rejected",
+                  null
+                ],
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "title": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "verified": {
+                "type": "boolean"
+              },
+              "verified_at": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "why": {
+                "items": {
+                  "type": "string"
+                },
+                "type": "array"
+              }
+            },
+            "required": [
+              "domain",
+              "status",
+              "tier",
+              "authority",
+              "verified",
+              "title",
+              "summary",
+              "llms_txt",
+              "llms_full_txt",
+              "last_checked",
+              "agent_terms",
+              "categories",
+              "capabilities"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "total": {
+          "type": "integer"
+        }
+      },
+      "required": [
+        "page",
+        "per_page",
+        "total",
+        "results"
+      ],
+      "type": "object"
+    },
+    {
+      "additionalProperties": true,
+      "properties": {
+        "detail": {
+          "type": "string"
+        },
+        "domain": {
+          "type": "string"
+        },
+        "error": {
+          "type": "string"
+        },
+        "hint": {
+          "type": "string"
+        },
+        "retry_after_seconds": {
+          "type": "integer"
+        }
+      },
+      "required": [
+        "error"
+      ],
+      "type": "object"
+    }
+  ],
+  "type": "object"
+}

First observedOct 18, 2026

TDQS

A3.8/5.0

Behavior4/5

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

Annotations already cover read-only, idempotent, non-destructive, closed-world behavior. The description adds a genuine behavioral trait not present in structured data: the default sort is verified-first then by authority. It stops short of describing pagination behavior for a 7-param list tool.

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?

Two sentences, no filler, and the ranking semantics are front-loaded before the filter hint. Every clause earns its place.

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

Completeness4/5

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

An output schema exists, so return shape need not be explained, and the schema documents most filters. With 7 optional params the description is adequate; only pagination behavior and the distinction from search_llms_registry are unaddressed.

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

Parameters3/5

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

Schema description coverage is 71%, so the schema carries most of the load (detail, category, capability, include_unlisted are all documented there). The description only adds meaning for verified_only and reinforces the default ordering — marginal but non-zero added value.

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

Purpose4/5

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

States a specific verb and resource — a ranked listing of the directory — plus the ordering rule (verified first, then authority), which tells an agent exactly what this returns. It is distinguishable from lookup_domain (single lookup) and search_llms_registry by implication, but no sibling is named.

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

Usage Guidelines3/5

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

'Use verified_only to get only owner-verified sites' gives one concrete usage hint tied to a parameter. However, it never says when to choose this listing over search_llms_registry, directory_stats, or lookup_domain, so the when-to-use context is only implied.

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

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