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

Annotations already declare readOnly/idempotent/non-destructive/closed-world, so the safety profile is covered. The description adds genuinely new behavior: the full set of returned content components and the translation fallback ('in the user's language when a translation exists'), which tells the agent results may be localized or fall back. It does not discuss size/truncation of long guides, which is the only notable gap.

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 dense sentences with zero filler: the first establishes what is returned and how it is addressed, the second establishes when to call it. Front-loaded and 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?

For a two-parameter read-only tool with full schema coverage and no output schema, the description covers what is retrieved, how it is addressed, locale behavior, and its place in the workflow. No output schema means the enumerated content list is doing necessary work, and nothing an agent needs to invoke it correctly is missing.

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 coverage is 100%, so the baseline is 3, but the description adds meaning beyond it: 'by its slug' frames the identifier as coming from list/search results, and 'in the user's language when a translation exists' explains the actual resolution behavior of the locale parameter rather than just its default.

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 ('Read one ... guide in full') and resource, identifies the addressing key (slug), and enumerates what the response contains (short answer, sections, steps, FAQs, sources). It is clearly distinguishable from list_takemeup_guides and search_takemeup_guides because it positions itself as the follow-up step to those.

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?

'Use after listing or searching guides, to quote or summarise one' gives a clear when-to-use condition and a purpose for retrieving the full body rather than list metadata. It stops short of naming the sibling tools explicitly or stating when not to use it, so it is strong but not an exhaustive routing rule.

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