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CSOAI-ORG

API Tester AI MCP

generate_curl

Generate curl commands from request parameters. Provide method, URL, headers, body, and API key to create ready-to-use curl commands for testing APIs.

Instructions

Generate a curl command from request parameters.

Behavior: This tool generates structured output without modifying external systems. Output is deterministic for identical inputs. No side effects. Free tier: 10/day rate limit. Pro tier: unlimited. No authentication required for basic usage.

When to use: Use this tool when you need structured analysis or classification of inputs against established frameworks or standards.

When NOT to use: Not suitable for real-time production decision-making without human review of results.

Args: method (str): The method to analyze or process. url (str): The url to analyze or process. headers (str): The headers to analyze or process. body (str): The body to analyze or process. api_key (str): The api key to analyze or process.

Behavioral Transparency: - Side Effects: This tool is read-only and produces no side effects. It does not modify any external state, databases, or files. All output is computed in-memory and returned directly to the caller. - Authentication: No authentication required for basic usage. Pro/Enterprise tiers require a valid MEOK API key passed via the MEOK_API_KEY environment variable. - Rate Limits: Free tier: 10 calls/day. Pro tier: unlimited. Rate limit headers are included in responses (X-RateLimit-Remaining, X-RateLimit-Reset). - Error Handling: Returns structured error objects with 'error' key on failure. Never raises unhandled exceptions. Invalid inputs return descriptive validation errors. - Idempotency: Fully idempotent — calling with the same inputs always produces the same output. Safe to retry on timeout or transient failure. - Data Privacy: No input data is stored, logged, or transmitted to external services. All processing happens locally within the MCP server process.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
urlYes
bodyNo
methodYes
api_keyNo
headersNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior4/5

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

No annotations provided, so description carries full burden. It thoroughly covers side effects (read-only, no side effects), authentication (no auth for basic, API key for higher tiers), rate limits (10/day free), error handling, idempotency, and data privacy. This is comprehensive and relevant, though some generic statements don't specifically tie to curl generation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is verbose with redundant sections (e.g., behavioral transparency stated twice). The 'When to use' and 'Behavior' paragraphs are copied from a different tool, adding irrelevant information. It could be significantly shortened and focused.

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

Completeness2/5

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

Despite having an output schema, the description does not explain the output format (e.g., a string containing curl command). The mismatched usage guidance adds confusion. For a 5-parameter tool, more specific context about input formats and output shape is needed.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%. The 'Args' section provides generic descriptions like 'The method to analyze or process' without explaining that method is an HTTP verb, url is the endpoint, headers format, etc. This adds minimal value beyond parameter names.

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

Purpose2/5

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

First sentence clearly states 'Generate a curl command from request parameters,' but the subsequent 'Behavior' and 'When to use' sections describe structured analysis/classification, which contradicts the tool's actual purpose. This mismatch undermines clarity.

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

Usage Guidelines1/5

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

The 'When to use' section suggests structured analysis/classification, which is irrelevant to curl generation. The 'When NOT to use' mentions real-time production decisions, also unrelated. No guidance on when to generate a curl vs. alternatives like send_request.

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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