extract_content

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

With no annotations, the description carries the full behavioral burden, and it discloses only that SSRF protection is applied via socket pinning. It omits critical traits for a fetch tool: redirect handling, content-type restrictions, size/time limits, auth requirements, and failure behavior.

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

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

It is a seven-word fragment with zero filler, so nothing is wasted, but it is under-specified rather than deliberately concise and reads as a tagline instead of a front-loaded statement of function.

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

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

For a network-fetch tool with no annotations and no output schema, the description should explain what comes back and under what constraints. It mentions only SSRF pinning, leaving return format, error conditions, and extraction scope entirely unspecified.

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

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

Schema description coverage is 100% for the single url parameter ("Target URL to fetch"), so the schema already does the documentation work. The description adds no constraints such as allowed schemes or host restrictions beyond the generic SSRF mention, matching the baseline for fully-covered schemas.

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

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

"Guarded content extraction" largely restates the tool name extract_content, and it never says what kind of content (HTML, text, markdown, metadata) is produced or extracted from where. The only real addition is the security qualifier "SSRF socket pinning," which hints at scope but doesn't define the operation.

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

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

There is no when-to-use guidance, no preconditions, and no alternatives named (sibling list is empty, so the burden falls entirely on the description). An agent learns nothing about which URLs are acceptable or when this tool should be preferred over a plain fetch.

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