Compare two semantic versions with correct SemVer 2.0.0 precedence (e.g. 1.10.0 > 1.9.0 — plain string sort is wrong). Returns -1/0/1, the human relation, and the difference level (major, minor, patch, prerelease).
| Name | Required | Description | Default |
|---|---|---|---|
| a | Yes | First version, e.g. 1.10.0 | |
| b | Yes | Second version, e.g. 1.9.9 |
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?
With no annotations provided, the description carries the full burden of behavioral disclosure. It transparently states the return shape: -1/0/1, the human relation, and the difference level, and it highlights the precedence behavior with a concrete example. It does not cover invalid-version handling, but otherwise it reveals the key behavior an agent needs.
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 two tightly packed sentences. It front-loads the core purpose, includes a concrete example that demonstrates the critical pitfall, and enumerates the return values without any filler or repetition.
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?
Since there is no output schema, the description sufficiently details the return values and the ordering semantics for a straightforward comparison utility. It omits edge cases like invalid versions or build metadata handling, but for this tool's simplicity and sibling context the description is largely complete.
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 both parameters are already documented with examples in the schema itself. The description adds no new parameter-level details beyond 'two semantic versions,' so it neither improves nor detracts from the schema baseline.
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 uses a specific verb ('Compare') with a specific resource ('two semantic versions') and explicitly names the governing standard (SemVer 2.0.0 precedence). This clearly differentiates it from siblings like semver_bump, semver_max, and semver_satisfies, which involve different operations.
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 provides clear context for when to use this tool: when correct SemVer precedence matters, and it warns that plain string sort is incorrect. It does not explicitly list when-not-to-use or name alternatives, but the context and example sufficiently guide selection for a comparison task.
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 targets a distinct operation—encoding, color conversion, parsing, hashing, JWT validation, Markdown rendering, regex testing, SemVer operations, diffing, URL analysis, and UUID generation. The four SemVer tools are related but cleanly separated by action (bump vs compare vs max vs satisfies), and descriptions clarify their boundaries.
Tools overwhelmingly follow an object_verb snake_case convention (base64_encode, csv_parse, regex_test, semver_bump). Semver_max and semver_satisfies deviate slightly from the imperative verb pattern, but the overall naming is predictable and searchable.
At 16 tools, the server is slightly above the ideal 3–15 tool range but each utility earns its place for a general-purpose developer toolbox. No tools feel redundant, and the count remains manageable because the names and domains are highly scannable.
The toolkit covers a solid breadth of common developer utilities: encodings, common formats (JSON, CSV, Markdown), hashing/JWT, regex, SemVer, cron, URL, UUIDs, and diffing. It lacks some fringe converters such as YAML/XML parsing or HTML escape/unescape, but these are minor gaps that agents can work around rather than dead ends.