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anggasct

MCP-Insomnia

by anggasct

execute_request

Execute any API request from your Insomnia collection and retrieve its response, with support for environment variable substitution and overrides.

Instructions

Execute a request and get a response

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
requestIdYesID of the request to execute
environmentIdNoSub-environment ID from the collection for variable substitution
overrideVariablesNoPer-call variable overrides merged after stored env layers
environmentVariablesNoFinal override layer for environment variables (backward compatible with UC-31)
maxResponseBytesNoOptional max serialized response body bytes in tool output. Omit or set <= 0 for no cap. When exceeded, data becomes a truncated string preview.
timeoutMsNoOptional request timeout in milliseconds. Default 30000. Set <= 0 for no timeout (MCP cancellation still applies).
Behavior1/5

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

With no annotations, the description alone must disclose behavioral traits. It only states the action without mentioning side effects, auth requirements, idempotency, or response details. This is insufficient for an agent to understand the tool's behavior.

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 extremely short (7 words) and lacks structure. While concise, it omits essential information. It is under-specified rather than efficiently concise.

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

Completeness1/5

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

Given the tool has 6 parameters including nested objects and no output schema, the description is woefully incomplete. It does not explain return values, behavior on limits, or error conditions, making it inadequate for an agent.

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 the input schema already documents all parameters. The description adds no extra meaning beyond the schema, justifying the baseline score 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 'Execute a request and get a response' clearly states the verb and resource. However, it does not differentiate from the sibling tool 'execute_insomnia_request', which likely performs a similar function. This lack of distinction reduces clarity for tool selection.

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

Usage Guidelines2/5

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

No guidance is provided on when to use this tool versus alternatives like 'execute_insomnia_request'. There is no mention of prerequisites, context, or specific use cases.

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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