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questdb

mcp-server-questdb

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set_cell_maximized

Spotlight a single cell in the QuestDB notebook to focus on it, or clear to restore the normal multi-cell layout.

Instructions

Spotlight one cell (or null to restore normal layout). Hides other cells in the notebook view.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
cell_idYesCell id to spotlight, or null to clear.
buffer_idYes
Behavior3/5

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

With no annotations, the description carries the burden of behavioral disclosure. It does disclose a key behavior (hides other cells) and the null reset behavior, but it does not clarify persistence, permissions, or any other side effects beyond the view-level hiding.

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

Conciseness5/5

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

The description is two short sentences, front-loaded with the main action, and every word adds value. It is neither over-specified nor under-specified in length.

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

Completeness3/5

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

For a simple two-parameter tool, the description covers the core effect and the null behavior, but it leaves gaps like the meaning of buffer_id, how it differs from 'set_cell_view_maximized', and any potential return or persistence details. It is adequate but not complete.

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

Parameters2/5

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

Schema description coverage is only 50% (buffer_id has no description). The description adds little for cell_id, essentially restating the schema's 'or null to clear' as 'or null to restore normal layout', and provides no information about buffer_id, failing to compensate for the low coverage.

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?

The description clearly states the action ('Spotlight one cell') and its effect ('Hides other cells'), making the tool's purpose unambiguous. However, it does not differentiate itself from the very similar sibling tool 'set_cell_view_maximized', which could cause agent confusion.

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

Usage Guidelines3/5

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

The description implies when to use the tool (to focus on a single cell) and mentions the null behavior for restoring the layout. It does not explicitly mention alternatives or when not to use it, especially given the existence of a nearly identically named sibling tool.

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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