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Add Layout Label

add_layout_label

Add a text label to a print layout in QGIS. Supports dynamic expressions and custom colors.

Instructions

Add a text label to a print layout (mm). text may contain [% expression %] for dynamic content. color is hex (e.g. '#000000').

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
xNo
yNo
textYes
colorNo#000000
widthNo
heightNo
font_sizeNo
layout_nameYes
Behavior3/5

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

With no annotations, the description carries full burden. It discloses support for dynamic expressions and hex color, but lacks details on mutation behavior, layout existence checks, or potential side effects like overwriting.

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

Conciseness4/5

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

Two-sentence description is efficient and front-loads the core purpose. However, it could better incorporate parameter details without expanding length.

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

Completeness2/5

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

Lacks return value info, error conditions, and behavioral context beyond what is minimal. Given 8 parameters and no output schema, the description is insufficient for effective agent invocation.

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 0%. Description covers only text and color semantics, ignoring width, height, font_size, and coordinate units. Over half the parameters are undescribed.

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

Purpose5/5

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

The description clearly states it adds a text label to a print layout, specifying the resource and action. It differentiates from siblings like add_layout_legend and add_layout_map by focusing on text labels.

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 explicit guidance on when to use this tool versus alternatives. The description does not mention prerequisites, when not to use it, or comparisons with related tools like add_layout_legend or add_layout_map.

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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