Reference

ctx_url_read

Input contract and parameters for ctx_url_read.

Status by featureReviewed September 2026

MCP tool · Read, search & shell

Call this tool through your MCP client. Its availability depends on your active configuration and profile.

This registry contract is separate from the SDK. For terminal commands, use the CLI reference.

Parameters

Generated from the registered input schema. “Required” reflects the schema; individual actions can impose additional requirements.

max_itemsinteger

Max items for facts/quotes

max_tokensinteger

Token budget

modestring

Accepted: automarkdowntextlinksfactsquotestranscript

querystring

Focus query (boosts facts/quotes)

timeout_secsinteger

Timeout seconds

urlstringRequired

http(s) URL (page, PDF, YouTube)

Exact JSON schema

Inspect the complete input schema

{
  "properties": {
    "max_items": {
      "description": "Max items for facts/quotes",
      "type": "integer"
    },
    "max_tokens": {
      "description": "Token budget",
      "type": "integer"
    },
    "mode": {
      "description": "auto|markdown|text|links|facts|quotes|transcript",
      "enum": [
        "auto",
        "markdown",
        "text",
        "links",
        "facts",
        "quotes",
        "transcript"
      ],
      "type": "string"
    },
    "query": {
      "description": "Focus query (boosts facts/quotes)",
      "type": "string"
    },
    "timeout_secs": {
      "description": "Timeout seconds",
      "type": "integer"
    },
    "url": {
      "description": "http(s) URL (page, PDF, YouTube)",
      "type": "string"
    }
  },
  "required": [
    "url"
  ],
  "type": "object"
}

Runtime description

The following is the tool's own agent-facing description, reproduced from the reviewed registry. It can contain implementation terminology; it does not expand the public stability commitment.

Read the agent-facing description

Fetch URL: pages→Markdown; PDF→text; YouTube→transcript; mode=auto best per type.
mode=facts|quotes for research (claims+confidence). query='topic' focuses extraction.
GitHub blob/raw URLs auto-resolve to raw file. SSRF-guarded (no private IPs).
max_tokens=6000; timeout_secs=20 (max 60).

Sources & versions3 references Reviewed 18 Sept 2026

mcp_manifest.rsrust/src/core/mcp_manifest.rsReviewed checkout
registry.rsrust/src/server/registry.rsReviewed checkout
dynamic_tools.rsrust/src/server/dynamic_tools.rsReviewed checkout

Core checkout: 50fbff09c9
Installed runtime: 3.10.2
SDK release: 1.1.0

Separate baselines for source, CLI/configuration and SDK contracts. Review does not certify every platform or integration.

Versions & compatibility