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aferreiraguido

javascript-mcp-server

analyze_svelte_component

Inspect a Svelte component to expose its props, reactivity, stores, context, lifecycle, bindings, snippets, and dispatched events.

Instructions

In-depth analysis of a Svelte component: props, reactivity ($:), stores (writable/readable/derived), context (setContext/getContext), lifecycle, bindings, snippets and dispatched events.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
fileYesRelative path to the .svelte file
nameYesName or path of the loaded project
Behavior2/5

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

No annotations are provided, so the description carries the full burden. It lists what is analyzed but does not disclose whether the tool is read-only, requires a loaded project (though the 'name' parameter hints at it), or what side effects or output format to expect. This is a significant gap for a tool that presumably performs static analysis.

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?

The description is a single concise sentence that front-loads 'In-depth analysis' and efficiently lists the covered aspects. Every term adds value, and there is no redundancy or filler.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool is complex, covering eight distinct Svelte features, but the description offers only a list of topics. Without an output schema, it should say what the analysis returns, and it also omits prerequisites like project loading. The list provides some context but not enough for a complete understanding.

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%, with both 'name' and 'file' described in the schema. The tool description adds no additional meaning about parameter usage, format, or constraints, so it stays at the baseline of 3.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states 'In-depth analysis of a Svelte component' and enumerates specific aspects (props, reactivity, stores, context, lifecycle, bindings, snippets, dispatched events). This distinguishes it from sibling tools like list_svelte_components or analyze_vue_component. However, the verb 'analysis' is somewhat generic, and it does not specify the exact output, so 4 rather than 5.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for thorough Svelte component inspection but provides no explicit when-to-use vs. alternatives such as list_svelte_components or analyze_react_component. It lacks any exclusions or comparison to other tools, so the guidance is only implicit.

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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