Oviond

Refresh client screenshot

refresh_client_screenshot

Re-take the screenshot of a client's website and save it, returning the new URL. The screenshot is generated server-side from the stored website, so the client needs one configured. Use this when the site has changed and the card looks stale.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`id`	Yes	Client ID (from list_clients)

Output Schema

TableJSON Schema

Name	Required	Description	Default
`data`	No	The client carrying the freshly taken screenshot URL.
`success`	Yes	True when the call succeeded. A failure comes back as an error result instead.

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedSep 18, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": false,
+  "properties": {
+    "data": {
+      "additionalProperties": {},
+      "description": "The client carrying the freshly taken screenshot URL.",
+      "type": "object"
+    },
+    "success": {
+      "description": "True when the call succeeded. A failure comes back as an error result instead.",
+      "type": "boolean"
+    }
+  },
+  "required": [
+    "success"
+  ],
+  "type": "object"
+}

First observedSep 18, 2026

TDQS

A4.2/5.0

Behavior4/5

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

Annotations declare readOnlyHint=false and destructiveHint=false; there is no contradiction. The description adds real value beyond those flags: the screenshot is 'generated server-side from the stored website,' the operation saves and returns a new URL, and the client must have a website configured. A statement about what happens when no website is configured (error vs. fallback) would have earned a 5.

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 sentences with zero filler. The action and outcome lead the first sentence; mechanism, prerequisite, and trigger follow in the second. Every clause earns its place.

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 one-parameter tool with full input schema coverage, an output schema, and safety annotations, the description covers action, mechanism, prerequisite, and when-to-use. The only material gap is the runtime failure behavior when the client lacks a configured website, which the agent would otherwise learn only by calling the tool.

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%: the schema already documents id as 'Client ID (from list_clients)'. The description contributes prerequisite context (a configured website) but no additional parameter-level syntax or format details, so the baseline of 3 applies.

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 opens with a specific verb and resource: 'Re-take the screenshot of a client's website and save it, returning the new URL.' This unambiguously identifies the action and outcome, and distinguishes it from nearby siblings such as refresh_client_favicon, refresh_report, and refresh_account_favicon, whose resources differ.

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?

Provides an explicit trigger condition: 'Use this when the site has changed and the card looks stale.' It also states a prerequisite ('so the client needs one configured'), telling the agent when the call is viable. It does not explicitly name alternatives or exclusion cases, but for a single-purpose refresh tool the context is clear.

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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