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kasm-use

kasm-use

by rchurro
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Hybrid

kasm_look

Capture a Kasm session screenshot to inspect the desktop before clicking and after each action, confirming that your input worked.

Instructions

Screenshot the Kasm session so you can see it. Always look before clicking, and look again after each action to confirm it worked.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "kasm_look"
  }
}

Input Schema

NameRequiredDescriptionDefault
session_idNoKasm session id. Omit to use your newest running session.
wait_secondsNoPause before capturing (default 2).

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4/5.0
Behavior3/5

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

Without annotations, the description carries the full burden. It states the core action but does not disclose output format, read-only nature, or other behavioral traits beyond the basic screenshot purpose.

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?

Two short sentences, front-loaded with the action and followed by usage advice. Every sentence earns its place with no redundancy.

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

Completeness4/5

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

For a simple screenshot tool with two parameters, no output schema, and no annotations, the description covers what it does and when to use it. It omits return details, but the purpose is clear enough for correct invocation.

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 100%, so both parameters are fully documented in the schema. The description adds no parameter-specific meaning beyond what the schema provides, making 3 the baseline.

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 states a specific verb ('Screenshot') and resource ('the Kasm session'), and its purpose ('so you can see it'). It implicitly distinguishes itself from sibling tools like kasm_click by instructing to look before clicking.

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

Usage Guidelines4/5

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

It gives clear context for when to use: before clicking and after each action. No explicit when-not-to-use or named alternatives, so it falls short of a 5.

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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