Skip to main content
Glama

wavexis_annotated_screenshot

Read-onlyIdempotent

Captures a screenshot with numbered overlay labels on specified CSS elements, returning the image and a label-to-selector map for visual identification in follow-up actions.

Instructions

Capture a screenshot with numbered labels overlaid on elements.

Injects overlay divs with labels @e1, @e2, ... on each element matching the provided selectors, captures a screenshot, removes the overlays, and returns the image plus a label-to-selector map.

Use wavexis_screenshot for plain captures, or this tool when visual element identification is needed for follow-up actions.

Side effects: uses an existing session backend, injects and removes temporary overlay DOM nodes; writes to output_path when given. Returns: JSON string with keys: 'status' ('ok'/'error'), 'format' (str), 'base64' (str) or 'path' (str), 'size_bytes' (int), 'labels' (dict[str, str]).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
inputYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior4/5

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

Annotations indicate read-only and non-destructive. Description adds specifics: injects/removes overlays, writes to output_path. Provides more context than annotations alone.

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 paragraphs: first explains process, second gives usage guidance and side effects. Well-structured, though could be slightly more concise.

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

Completeness5/5

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

Covers purpose, process, side effects, return values. Output schema exists but description still provides necessary context. Complete for a tool of this complexity.

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

Parameters3/5

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

Schema description coverage is 0% per context, but schema itself has descriptions for each parameter. Description mentions selectors and output_path but not session_id. Adds some value but not comprehensive.

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?

Clearly states the tool captures a screenshot with numbered labels on elements. Distinguishes from sibling wavexis_screenshot by specifying it is for visual element identification.

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

Usage Guidelines5/5

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

Explicitly says when to use this tool vs wavexis_screenshot: 'Use wavexis_screenshot for plain captures, or this tool when visual element identification is needed for follow-up actions.'

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

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/MathiasPaulenko/wavexis-mcp'

If you have feedback or need assistance with the MCP directory API, please join our Discord server