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laszlopere

mcp-tmux

by laszlopere

tmux_resize_pane

Resize a tmux pane by specifying cell counts to move left, right, up, or down. Adjusts pane size in one or multiple directions.

Instructions

Resize a pane by a number of cells in one or more directions.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
target_paneYes
leftNo
rightNo
upNo
downNo
targetNo
Behavior2/5

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

No annotations provided, so description carries full burden. Description only states the basic action, omitting details like negative values, boundary behavior, effect on other panes, or return value. Lacks essential behavioral context.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Single sentence is concise and front-loaded, but too brief for the tool's complexity. Could include more details without losing conciseness.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no output schema, no annotations, 6 parameters with only 1 required, and 0% schema coverage, the description fails to provide necessary context for correct invocation. Lacks parameter explanations, usage conditions, and behavioral details.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 0% (no descriptions in schema), and the high-level description does not explain individual parameters. 'By a number of cells in one or more directions' vaguely covers left/right/up/down but ignores target_pane, target, and how values affect resizing. No added meaning beyond parameter names.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

Description clearly states the tool resizes a pane by cells in directions. It's specific to resizing, but doesn't differentiate from sibling tools that might also affect pane dimensions, though no siblings directly resize. Still, purpose is clear.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance on when to use this tool versus alternatives like tmux_split_window or tmux_select_pane. No prerequisites or conditions mentioned, leaving the agent without decision support.

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

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