Bundle multiple URLs into a single short link on UURL.at. Returns the short URL and QR code URLs (.svg and .png). Use this when you want to share multiple reference links as one URL.
| Name | Required | Description | Default |
|---|---|---|---|
| urls | Yes | List of URLs to bundle (1-12 URLs, each must start with https:// or http://). |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden for behavioral disclosure. It explains the action (bundle) and outputs (short URL, QR codes), but does not mention side effects, authentication requirements, rate limits, or potential errors. For a simple creation tool, this is adequate but not comprehensive.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely concise: two sentences with no redundancy. The first sentence front-loads the action and key returns; the second provides usage guidance. Every sentence earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's simplicity (one parameter, no output schema, no annotations), the description is fairly complete. It explains the action, return values, and usage context. It could mention expected response format or error cases, but the schema covers parameter constraints.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 100% coverage with a clear description of the 'urls' parameter. The description does not add additional meaning beyond the schema, but the baseline is 3 for high coverage. No extra value is provided.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: bundling multiple URLs into a single short link on UURL.at. It also lists the return values (short URL, QR code URLs) and distinguishes from the sibling tool 'get_bundle'.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description includes an explicit usage hint: 'Use this when you want to share multiple reference links as one URL.' This provides clear context, though it does not explicitly mention when not to use the tool or directly compare with alternatives beyond the sibling tool name.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Add one secure layer between your agents and this server.
The two tools have perfectly distinct purposes: bundle_urls creates a new bundle from multiple URLs, while get_bundle retrieves information about an existing bundle. There is no overlap in functionality, making tool selection unambiguous.
Both tools follow a consistent verb_noun pattern (bundle_urls, get_bundle) with clear action-object naming. The naming is predictable and follows the same convention throughout.
With only 2 tools, the server feels too thin for a bundling service. While it covers creation and retrieval, typical URL management services would benefit from additional operations like listing bundles, updating, or deleting them. The scope is incomplete for practical use.
The tool set is severely incomplete for a URL bundling domain. It lacks essential operations such as listing existing bundles, updating bundle contents, deleting bundles, or managing bundle metadata. Agents will hit dead ends when trying to perform common lifecycle management tasks.
