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

Annotations already declare readOnlyHint, idempotentHint and destructiveHint=false, so safety is covered. The description adds meaningful context beyond that: a hard ceiling of 100 results, recency-based ordering, and cross-board scope. It does not say whether results are silently truncated at 100 or how to page past that limit, which is the one real 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?

Three tight sentences: behavior first, then use cases, then the optional scoping parameter. Nothing is padded and the most decision-relevant facts are front-loaded.

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 one-optional-parameter read tool with full annotation coverage and no output schema, the description covers scope, cap, ordering and usage. The only missing piece an agent would want is what happens at the 100-result boundary (truncation vs. pagination).

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% and the single parameter is fully documented in the schema, so the baseline is 3. The description reinforces the intent ('scope to a single namespace') but adds no syntax or default-behavior detail, and it refers to the parameter as 'namespaceSlug' while the schema names it 'namespace_slug' — a minor naming inconsistency.

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 ('Returns ... tasks') plus the exact scope: assigned to or created by the caller, across all accessible boards. The result cap (100) and ordering (most recent update) further pin down what the tool does, distinguishing it from board-scoped siblings like list_tasks or search_tasks.

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 concrete use cases ('what's on my plate?', surfacing overdue/stale work) and explains when to pass the namespace slug. It stops short of naming alternatives such as list_tasks or search_tasks and saying when those are preferable.

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