open session

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

Annotations declare this is not read-only, not idempotent, and not open-world, so the agent already knows it mutates UI state. The description adds useful mechanism detail (sidebar matching, DeepLink), but does not say what happens on failure, whether the previously focused session is disturbed, or what the caller observes afterward.

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?

A single front-loaded sentence with the action first, followed by a parenthetical on matching strategies. Nothing extraneous, though the parenthetical is the only part carrying new information and could have been expanded slightly for clarity.

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?

With only two fully documented parameters, annotations present, and no output schema, the description is close to sufficient. The remaining gap is behavioral: it never clarifies the session/sessionId alias duality or the outcome of a navigation, which matters because the tool changes UI focus state.

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 both properties are documented in the schema, so the baseline applies. The description adds nothing about the relationship between the required sessionId and the optional session alias, which is the one genuinely confusing part of the input contract.

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?

"在 MiniMax 界面中导航至指定会话" states a concrete action (navigate) on a concrete resource (a session) within a named surface (the MiniMax UI). This distinguishes it reasonably from siblings like minimax_read_session or minimax_list_sessions, though it does not explicitly contrast itself with minimax_activate or minimax_windows.

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: an agent can infer it should call this to bring a specific session into view. There is no explicit when-to-use, no exclusion telling the agent when to use minimax_activate or minimax_read_session instead, and no mention of prerequisites such as the session existing.

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