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reach_read

reach_read

Read-onlyIdempotent

Read any public URL live and get markdown or structured JSON. Detects the channel automatically (web, github repo/commit/issue, youtube captions, reddit, rss) and self-heals through a Jina fallback. No API key needed. / 외부 URL 실시간 읽기 → 마크다운·구조화 JSON. 채널 자동판별 + 폴백. API키 불필요

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "url": "<url>"
    },
    "name": "reach_read"
  }
}

Input Schema

Name	Required	Description	Default
`url`	Yes	URL to read, or the owner/repo shorthand. / 읽을 URL 또는 owner/repo 단축형
`channel`	No	Force a channel (optional): web\|github\|youtube\|reddit\|twitter\|rss / 선택 강제 채널

Schema Changelog

Changes observed during successful MCP inspections.

First observedSep 13, 2026

TDQS

A3.7/5.0

Behavior4/5

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

Annotations already cover the safety profile (readOnly, idempotent, non-destructive, openWorld). The description adds genuinely new behavior: automatic channel detection and a self-healing Jina fallback if the primary fetch fails. It does not disclose rate limits, failure modes, or auth/robots constraints, so it isn't a 5.

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

Conciseness4/5

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

The capability statement and the fallback/no-key facts are front-loaded in the first sentences, which is good structure. However, the full Korean restatement roughly doubles the length without adding information for a non-Korean-reading agent, which is mild redundancy rather than pure waste.

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?

With no output schema, the description usefully states the return shapes (markdown or structured JSON), and annotations carry the safety semantics. Gaps remain around pagination, size limits, and error behavior on blocked or unreachable URLs, but nothing required to invoke the tool correctly is missing.

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 100%, so both parameters are already documented in the schema, including the owner/repo shorthand and the channel override. The description restates channel auto-detection but adds no syntax or format detail beyond what the schema provides. Baseline 3 applies.

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: read a public URL and return markdown or structured JSON. It also enumerates the channels handled (web, github, youtube, reddit, rss), which helps an agent frame the tool's scope. It stops short of explicitly contrasting with the sibling reach_search, so it falls below a 5.

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?

'Read any public URL live' plus 'No API key needed' implies the usage context (single-URL fetch, no auth setup), but there is no explicit when-to-use/when-not guidance and no routing to reach_search or reach_doctor. The agent must infer which reach_* tool applies.

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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