Common IANA timezone names for clock calls.
| Name | Required | Description | Default |
|---|---|---|---|
| url | No | HTTPS URL to normalize or cite | |
| host | No | Public hostname | |
| json | No | JSON text to validate; discarded after the check | |
| zone | No | IANA timezone name |
Changes observed during successful MCP inspections. Dates show when Glama detected each change.
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 fails to disclose what happens when the tool is invoked, what it returns, whether it performs a check or lookup, or any side effects. The phrase 'Common IANA timezone names' only describes content, not behavior.
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 very short and free of filler, but it is under-specified rather than concise. A seven-word noun phrase provides no operational structure or actionable content for an agent.
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?
With no annotations, no output schema, and four optional parameters, this description is far from complete. It does not state what the tool returns, when to call it, or which parameter or combination of parameters should be used, leaving the agent to guess.
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?
Schema description coverage is 100%, so the baseline is 3 even without additional parameter guidance. The description adds no parameter-level meaning and does not explain why url, host, and json coexist with zone, but the schema itself already documents each parameter clearly.
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 is a noun phrase that mostly restates the tool name: 'Common IANA timezone names for clock calls.' It names no operation, so it is unclear whether the tool lists, resolves, validates, or returns timezone names. It also does not differentiate it from sibling tools like timezone and utc-time.
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?
There is no explicit guidance on when to use this tool versus its siblings. The only context hint is 'for clock calls,' which is too vague to distinguish it from timezone or utc-time, and no exclusions or alternative tool names are mentioned.
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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Most tools have clearly different outputs, but there are overlapping clusters: citation, normalize-url, and domain-shape all deal with URL/hostname shapes, while timezone, utc-time, and iana-zones all cover time. A couple of vague names like compatibility and citation could also cause initial misselection.
All names are lowercase hyphenated, which gives a visual consistency, but they mix verb-led names like normalize-url and validate-json with noun-led names like status-catalog and timezone. The pattern is readable but not predictable enough to be considered strongly consistent.
11 tools is within a reasonable range and none feels redundant, but the collection spans several unrelated concerns such as URL handling, HTTP status, time, JSON validation, and robots.txt. It is slightly broad, though not bloated.
The set covers common lookups like URL normalization, status codes, time, and JSON validation, but there is no coherent domain that ties these together. Obvious adjacent operations such as redirect checking, response header inspection, or rate-limit-specific details are missing, leaving an agent with possible dead ends.