Hub Place

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

With no annotations present, the description carries the full load and does substantial work: it discloses the defaults for a new place (answers only the owner, private, ignores guests' text), the side effect of public=True (agents' messages need owner approval via hub_say approved=), and the hub-down/reconnect behavior. It stops short of stating failure modes (duplicate name, invalid platform) or whether removal is reversible.

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-loads the core action before the parameter glossary, and every clause adds information rather than restating the title. The telegraphic, colon-heavy style ('guest_text: what a guest's words are: ignore, suggestion (...) or request') is dense but readable; the nested colon in guest_text is the one spot where clarity suffers slightly.

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 7-parameter mutation tool with an output schema and no annotations, the description covers defaults, side effects, and per-parameter meaning well enough to invoke it correctly. Missing are conflict/error behavior and confirmation of what 'remove' does to existing content, which matters for a destructive operation.

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 0% across 7 parameters, so the description must compensate and largely does: it defines 'only', 'public', 'guest_text', 'channel', and 'platform' with concrete semantics and even lists the accepted platform values (discord, fake). The 'name' and 'remove' parameters are only implicitly covered via the opening 'Add, change or remove' phrasing, leaving one gap.

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?

Opens with a specific verb set and resource ('Add, change or remove a place') and immediately clarifies what a 'place' is with concrete examples (a Discord bot, the fake test place). That said, it never distinguishes itself from the crowded hub_* family (hub_start, hub_status, hub_claim, hub_pair), so an agent must infer the boundary from the parameter names alone.

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 gives useful operating context — 'Works with the hub down; a running hub reconnects the place' — which implicitly tells the agent this is safe to call before or during a hub session. But it never states when to prefer this over sibling tools such as hub_start/hub_stop, nor any prerequisites like ownership or permissions needed to add a place.

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