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

Annotations already declare readOnly, idempotent, non-destructive, and closed-world, so the safety profile is covered. The description adds genuinely useful behavioral detail beyond that: the return being clean Markdown and the hard restriction to published, indexable pages. It omits rate limits or caching behavior, which is a minor gap given the annotation coverage.

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?

Two tight sentences with zero filler. The returned-fields payload is front-loaded and the input/scope constraint follows immediately; every clause carries information.

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?

With an output schema present and annotations covering safety, the description needn't explain return values, yet it does so comprehensively without harm. The only real gap is the absence of explicit sibling routing for draft content, but the tool is otherwise fully specified for invocation.

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% and the single parameter's own description already lists URL, path, and slug forms, so the schema carries the meaning. The description restates the same three input forms without adding syntax examples or constraints beyond the 500-char max in the schema. Baseline 3 is appropriate.

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?

States a specific verb and resource: reads one published page from www.techfabric.com and enumerates exactly what it returns (Markdown, title, metaTitle, description, dates, author, tags, FAQs, canonical URL). 'One published page' inherently contrasts with list posts or services, but no sibling is named explicitly, so it stops short of a 5.

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?

Gives the accepted input forms (URL, path, or slug) and a clear scoping constraint: 'Only published, indexable pages.' That constraint implies drafts must go through check_draft, but the alternative is not named outright, so it is strong context without explicit when-not routing.

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