Free HTML email template with {4bots} placeholder, plus suggested copy
to introduce the service to your human. Drop get_bundle's html field
where {4bots} appears.
| Name | Required | Description | Default |
|---|---|---|---|
| channels | No |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It describes the output (template with placeholder and copy) but does not explicitly state that the tool is read-only, has no side effects, or any authentication requirements. The description is adequate for a simple retrieval tool but lacks explicit safety guarantees.
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 concise, consisting of two sentences that front-load the purpose and provide a useful integration hint. It avoids unnecessary words. However, it could be slightly more structured by separating the template description from the usage guide, and it omits parameter information which would add valuable structure.
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 has one optional parameter with no schema description and no output schema, the description should compensate by covering parameter usage and return format. It provides a clear output description but entirely ignores the 'channels' parameter. The reference to get_bundle is helpful but insufficient for complete understanding.
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 schema has one parameter ('channels') with 0% description coverage, and the description does not mention or explain this parameter at all. The agent has no guidance on how to use the 'channels' parameter or its meaning. This is a critical omission that severely hinders correct invocation.
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 that the tool returns a free HTML email template with a {4bots} placeholder and suggested copy. The verb 'get' is implied from the tool name, and the description distinguishes the tool from siblings like get_bundle by referencing it directly. However, it could be more explicit about retrieving the template as a function.
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 gives implied usage context ('introduce the service to your human') and hints at integration with get_bundle ('Drop get_bundle's html field where {4bots} appears'). It does not explicitly state when to use this tool over alternatives like get_summary or list_channels, nor does it provide exclusions. The guidance is present but indirect.
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.
Each tool has a clearly distinct purpose: creating a setup link vs. starting a subscription, previewing sample content vs. fetching the daily bundle, listing channels vs. voting, etc. Descriptions explicitly clarify differences (e.g., 'For a fast start without human input, use start_subscription').
All tool names follow a consistent verb_noun pattern using snake_case: create_setup_link, get_bundle, get_session, get_summary, get_template, list_channels, start_subscription, try_sample, vote. No mixed conventions or vague verbs.
9 tools is well-scoped for a content subscription service. Each tool serves a single, necessary function (subscription activation, daily content, account info, channel listing, voting, etc.) with no redundancy or bloat.
The tool surface covers the full lifecycle: subscription start (two paths), daily content retrieval, account status, catalog/pricing, email template, channel discovery, and community voting. The only minor gap is no cancellation tool, but the manage_url in get_session handles that externally. No dead ends for the core workflow.