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

Annotations already declare readOnlyHint, idempotentHint and destructiveHint=false, so the safety profile is covered. The description goes further with genuinely useful behavior: publication is re-checked on every read, withdrawal yields 404, no cached files are served, and it warns that uploaded text is untrusted. These are real operational facts an agent cannot get from annotations, though the rate-limit details (3–160 chars, 20/page) read as search-route specifics rather than this list tool.

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?

The purpose is front-loaded, but the middle of the description drifts into iframe embedding and search-route trivia that does not help an agent invoke this specific tool, padding an otherwise focused paragraph. Sentences are individually clean but the whole is not tightly scoped to this call.

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?

There is no output schema, so the description must carry the behavioral burden; it does reasonably well, covering the 404/withdrawal semantics, absence of caching, and a security caveat. Pagination is only obliquely addressed via the '20 results per page' note tied to embed routes, so a little is left unstated for a list operation with an 'after' cursor.

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 schema already explains both base_id (64-char ID) and after (cursor, 'do not construct cursors'). The description adds nothing about either parameter, so the baseline of 3 for schema-complete inputs 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?

The description states a specific verb (List) and resource (documents in a published base) and scopes it with 'Published bases only.' An agent can distinguish it from public_get_base_document (single doc) and public_list_bases (bases, not documents), though the description never names those siblings to make the routing explicit.

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?

It establishes preconditions — published bases only, no account required, private/withdrawn bases return 404 — which implies when it is callable. However it never states when to use this versus siblings like public_get_base_document or public_read_base_index; the iframe/embed guidance describes a separate embedding scenario rather than call-time selection.

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