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

Annotations already declare read-only, idempotent, non-destructive, closed-world behavior, so the description is not required to restate safety. It adds real value beyond that: retention bounds (1000 events / seven days), deduplication via stable event IDs, cursor-based pagination, and the fact that delivery updates do not create new events.

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?

Four short sentences, each carrying distinct information, with the core purpose front-loaded and operational constraints following. No filler or redundancy.

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?

An output schema exists, so return-shape explanation is unnecessary, and the description covers retention, deduplication, and pagination semantics well. The main omission is any disambiguation from the get_routine_events sibling, which matters given the dense sibling cluster.

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 0%, so the description must carry the load, and it explains that before/after are pagination cursors. It says nothing about the event filter's intended use or the limit parameter's 1-200 range, so two of four parameters remain undocumented even though the enum values are largely self-describing.

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 ('Read the workspace's retained routine event feed'), so the agent knows it lists routine events rather than routines or timers. It does not, however, distinguish itself from the sibling get_routine_events, leaving the list-vs-get boundary to be inferred.

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?

Usage is only implied: the description scopes the feed to routine events, which hints at when this tool applies, but it never says when to prefer it over get_routine_events or list_server_routines, nor does it state any preconditions. Adequate but with a clear routing gap.

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