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@yawlabs/electron-mcp

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by YawLabs

electron_configure_csp

Read-onlyIdempotent

Generate a Content Security Policy for Electron apps, accounting for bundler, framework, and dev-mode. Returns both meta-tag and webRequest implementations.

Instructions

Generate a Content Security Policy for an Electron app. Accounts for the bundler (Vite, webpack), framework (React, Vue, Svelte), and whether dev-mode exceptions are needed. Returns both meta-tag and session.webRequest approaches.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
bundlerNoBundler used (affects script-src for HMR in dev mode). Defaults to 'vite'.
needsInlineStylesNoWhether inline styles are required (e.g. CSS-in-JS). Defaults to false.
needsEvalNoWhether eval() is needed (some template compilers). Defaults to false.
externalConnectionsNoExternal origins the app connects to, e.g. ['https://api.example.com', 'wss://ws.example.com']
externalImagesNoExternal origins for images, e.g. ['https://cdn.example.com']
Behavior4/5

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

Annotations indicate readOnlyHint=true, destructiveHint=false, idempotentHint=true, and the description confirms a generation (read-only) tool that returns output without side effects. It adds context about bundler/framework considerations and return formats, exceeding annotation-only information.

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 two sentences, front-loaded with the main purpose and then details. Every sentence adds value, with no wasted words. Highly concise.

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?

Without an output schema, the description could better detail the return structure. It mentions returning 'meta-tag and session.webRequest approaches' but does not specify the format or data type. Given the tool's complexity, this is a notable gap.

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%, so all parameters are already described in the schema. The description does not add significant new meaning to parameters; it focuses on the overall purpose. Baseline 3 is appropriate.

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

Purpose5/5

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

The description clearly states it generates a Content Security Policy for Electron apps, accounting for bundler and framework, and returns two approaches. This distinguishes it from sibling tools which focus on auditing, migration, or scaffolding.

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 generating CSP in Electron apps but does not provide explicit guidance on when to use this tool versus alternatives, nor does it mention when not to use it. Sibling tools cover different domains, so context is clear but not explicit.

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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