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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint=false and destructiveHint=false, so the safety profile is covered. The description adds one genuinely behavioral fact not in annotations: results are returned newest first. It says nothing about pagination, result caps, or behavior when no filters match, so it stays at baseline-plus.

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?

A single sentence that front-loads the resource and ordering, then the filters. Every clause maps to real behavior and there is no filler.

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 a full output schema, complete annotation set, and 100% schema coverage, the description only needs to add the ordering and filter semantics, which it does. Minor gap: no mention of default paging behavior or result limits, though the limit default is in the schema.

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%, so the schema already documents all four parameters including patterns and the default limit of 20. The description restates tag/author/since but omits the limit parameter and adds no format or interaction detail beyond the schema.

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 resource (TechFabric blog posts) and scope: sorted newest-first, with optional filters by tag, author, or date. An agent can tell it is a listing/query tool. It does not explicitly contrast itself with siblings like get_page or search, so it falls 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?

The word 'optionally' signals that filters are available but does not say when to reach for this tool versus search or the draft/page tools. Usage is implied by the filter list, with no exclusions or alternatives named.

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