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Read Live Page

site_read_url
Read-onlyIdempotent

Reads a LIVE web page exactly as a visitor's browser would and returns the HTTP status code, the response headers and the HTML body. Writes NOTHING anywhere — this is the read-only counterpart of site_fetch.

outline=true returns the page's STRUCTURE instead of the body: title, meta description, canonical, and the full h1-h6 heading tree with an h1_count. Use it when the question is "did my edit land", "does this page have an H1", "is the heading order right" — a normal WordPress page is 50 KB of HTML and does not fit in one tool result, so asking for the whole body to check one heading wastes the call. The outline is computed from the SAME fetch, so it reflects what the server actually rendered, including whatever a theme or page builder shortcode produced (issue #260: post_content shows the shortcode, not the <h1> the theme emits from it).

text=true returns the page's READABLE TEXT instead of the HTML: title, meta description, canonical, H1s, the visible text with scripts/styles/navigation markup stripped (first 6,000 characters, text_truncated says if there was more) and the list of same-site internal_links. Use it for "what does this page say", "is this the right landing page for my CTA / ad / post", "which pages does it link to". A typical page is 50-120 KB of HTML and the raw body does not fit in one tool result; the text view is a few KB.

Use it to verify what actually shipped: is the page live, did it come back 200 or 404, which language did the server pick, is the canonical/hreflang/meta-description what you intended, did the redirect land where you meant it to. REDIRECTS ARE REPORTED, NOT HIDDEN: when the URL you asked for redirects, the answer carries redirected: true, requested_url, final_url and a redirects list with every hop (from, status, to), and status/headers describe the FINAL page. So "does www redirect to the apex host" is answerable in one call — read redirects, do not infer it from status alone.

Why this exists (issue #257): the other tools with similar names do different jobs and cost a wasted turn. site_fetch is a DOWNLOADER, it requires a path and writes the file into the site. site_headers MANAGES response headers, it does not read a page. And curl inside site_run_command cannot resolve the site's own domain from the hosting container. So verifying a page you just published had no tool at all.

max_bytes caps the body (default 200 KB, max 2 MB) and is applied exactly — the body is cut to it and truncated tells you when something was left behind. Pass max_bytes=0 when you only need to know whether a URL answers: the response then carries status and headers and NO body, which is the cheap way to check a batch of internal links one call at a time. The URL passes the same SSRF guard as every other outbound request, so private and internal addresses are refused. Read-only.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
urlYes
textNo
outlineNo
max_bytesNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

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TDQS

A4.9/5.0
Behavior5/5

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

Annotations already declare readOnly/openWorld/idempotent/non-destructive, and the description adds context they cannot carry: the SSRF guard refusing private/internal addresses, redirects being reported rather than hidden (redirected, requested_url, final_url, full hop list, and status/headers describing the FINAL page), and exact truncation semantics. This is behavioral disclosure well beyond the annotation set.

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?

Front-loaded with the core verb and the read-only framing, and the per-flag paragraphs are scannable. It is nonetheless long for a four-parameter tool, and the 'Why this exists (issue #257)'/'issue #260' asides and repeated size rationale (50 KB / 50-120 KB) add length without changing how an agent calls it.

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?

With rich annotations and an output schema present, the remaining burden is behavioral, and the description covers it: mutation-free guarantee, redirect reporting model, SSRF rejection, truncation signals, and the intended verification use cases. Nothing an agent needs to call this correctly is missing.

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

Parameters5/5

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

Schema description coverage is 0%, so the description carries the full parameter burden and does so: outline explains the returned structure (title, meta, canonical, h1-h6 tree, h1_count) plus the issue #260 caveat about theme/shortcode-generated headings; text explains the 6,000-char limit and text_truncated; max_bytes gives default 200 KB, 2 MB ceiling, exact enforcement, and the max_bytes=0 no-body mode.

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?

Names a specific verb+resource (reads a live web page as a browser) and immediately scopes it against siblings: site_fetch is a downloader, site_headers manages headers, and site_run_command's curl cannot resolve the site domain. An agent can distinguish it from every similarly-named tool without opening a schema.

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

Usage Guidelines5/5

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

Provides explicit when-to-use routing for each mode: outline=true for structural checks like 'did my edit land' or 'is the heading order right', text=true for 'what does this page say' or CTA/landing sanity checks, and max_bytes=0 for cheap link-liveness batches. It also names the exact sibling alternatives and why they are wrong for this job.

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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