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

Goes well beyond readOnlyHint: it enumerates the compact row fields returned, warns that include_text can return tens of KB per record, explains include_history expands to one row per retained version so knowledge_id can repeat, discloses the pagination quirk that a page may be empty while has_more is true, and flags text/sources as untrusted reference data rather than permission — a meaningful injection-surface warning.

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?

Front-loaded with purpose and scope before the return-shape and pagination details, and nearly every clause carries operational information. It is dense, though, with several long compound sentences that could be split for faster scanning.

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 filtered list tool with readOnly annotations and an output schema, the description covers the remaining risk surface: Space scoping rules, payload size costs, history export semantics, pagination continuation, and untrusted-data handling. Nothing critical for a correct first call 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?

With 9 parameters and only 33% schema coverage, the description adds real meaning for include_text, include_history, space_id and the three filter parameters, but leaves regex, cursor/limit behavior, and especially what premise_knowledge_id denotes and how inference_status values (source/current/stale) behave essentially undocumented in prose.

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 opening sentence gives a specific verb and resource ('Browse current entries and skills in one private Space') plus the filtering dimension, and the scope clause 'Reads your Personal Space unless space_id names another, never look across Spaces' distinguishes it from cross-Space search siblings like knowledge_search and from single-record knowledge_get.

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?

Clear when-to-use context: omit space_id for Personal Space, supply space_id for shared-Space entries, use include_text for full records, use include_history for backup or migration. It does not explicitly route the agent to knowledge_search when the goal is a query rather than browsing, so use-vs-alternative contrast is incomplete.

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