Sleepwalker

Serialize Sleepwalker page content

serialize_sleepwalker_page_content

Use this only when you need Sleepwalker's normalized page content view. It does not score content, discover trends, suggest prompts, or save a run.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`url`	Yes	Public page URL to analyze.
`offset`	No	Character offset for paginating long content.
`max_chars`	No	Maximum number of characters to return.
`extraction_mode`	No	How Sleepwalker retrieves page content. These actions read the page as a fast static fetch (the same content an AI crawler sees); leave the default. Other values are accepted for compatibility but are treated as the static fetch.	ssr

Output Schema

TableJSON Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedJul 22, 2026

changedInput schema / properties / extraction_mode / description

Previous value: -"How Sleepwalker should retrieve page content. Leave the default for most pages; use rendered or csr if the page depends on JavaScript."New value: +"How Sleepwalker retrieves page content. These actions read the page as a fast static fetch (the same content an AI crawler sees); leave the default. Other values are accepted for compatibility but are treated as the static fetch."

Changed4 schema fields changedJun 28, 2026

addedInput schema / properties / extraction_mode / description

Added value: +"How Sleepwalker should retrieve page content. Leave the default for most pages; use rendered or csr if the page depends on JavaScript."

addedInput schema / properties / max_chars / description

Added value: +"Maximum number of characters to return."

addedInput schema / properties / offset / description

Added value: +"Character offset for paginating long content."

addedInput schema / properties / url / description
```
Added value: +"Public page URL to analyze."
```

First observedJun 28, 2026

TDQS

A4/5.0

Behavior3/5

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

Annotations only provide generic hints; readOnlyHint is false, so the description's statement that it does not save a run adds useful behavioral clarity. However, it does not disclose more about side effects, fetching behavior, or what 'normalized' means in practice, leaving some ambiguity for an operation that is not explicitly read-only.

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, front-loaded with the primary use case and followed by crisp exclusions. There is no redundant or filler text.

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?

The description, combined with a fully documented input schema and an output schema, covers the key selection and invocation context. It could add detail about pagination or output shape, but the exclusions and normalized-view framing make it sufficient for an agent to decide whether to call it.

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?

The input schema has 100% parameter description coverage, so the schema already documents url, offset, max_chars, and extraction_mode. The description adds little about how parameters behave or relate to the normalized content view, so it merits the baseline score rather than higher.

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 tool's specific purpose: providing Sleepwalker's normalized page content view. It also distinguishes this tool from siblings by listing what it does not do (score content, discover trends, suggest prompts, save a run).

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 description gives an explicit 'use this only when' condition and clearly states exclusions, but it does not name the specific sibling tools that should be used instead. The exclusions imply alternatives like score_sleepwalker_content or discover_sleepwalker_content_trends without directly referencing them.

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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