tmux_rename_window

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

With no annotations, the description must disclose behavioral traits. It only states 'rename a window' without saying what happens to the old name, whether it affects other windows, or any restrictions (e.g., requires an active session). This is insufficient transparency.

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?

The description is a single sentence with no wasted words. It is appropriately front-loaded. However, conciseness comes at the cost of completeness, but the structure itself is efficient.

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 tool with no annotations, three parameters, and no output schema, the description is severely lacking. It does not explain parameter relationships, valid inputs, or any behavioral context like session selection. This makes it incomplete for reliable tool selection and invocation.

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% because the description adds no parameter information. While parameter names ('window', 'new_name', 'target') are somewhat self-explanatory, the description fails to explain what values they accept (e.g., window formats, valid names) or how 'target' differs from 'window'. The burden to compensate for low coverage is unmet.

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 description clearly states the action ('Rename') and resource ('a window'), making the basic purpose obvious. However, it does not differentiate this tool from siblings like 'tmux_new_window' or 'tmux_select_window', and lacks specificity about which window is being renamed.

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?

No guidance is provided on when to use this tool versus alternatives. There is no mention of prerequisites, context (e.g., session), or when renaming is appropriate versus other window operations.

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