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jowhee327

aws-security-mcp

by jowhee327
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Hybrid

scan_idle_resources

Scan your AWS environment to find idle resources that pose security risks. Read-only operation; no changes are made to your infrastructure.

Instructions

Run Idle Resources security scanner only. Read-only. Does not modify any AWS resources.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
regionNoAWS region to scan (default: server region)
providerNoCloud provider to scan (default: aws). With huaweicloud, `region` is a Huawei Cloud region ID (e.g. cn-north-4); omit it or pass "all" to scan every region project of the account. Huawei Cloud Phase 1 is single-account (org_mode falls back to the current account with a warning).

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv0.9.0
    • addedInput schema / properties / provider
      Added value: +{
+  "description": "Cloud provider to scan (default: aws). With huaweicloud, `region` is a Huawei Cloud region ID (e.g. cn-north-4); omit it or pass \"all\" to scan every region project of the account. Huawei Cloud Phase 1 is single-account (org_mode falls back to the current account with a warning).",
+  "enum": [
+    "aws",
+    "huaweicloud"
+  ],
+  "type": "string"
+}
  2. First observedv0.7.6

TDQS

A3.7/5.0
Behavior4/5

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 explicitly states 'Read-only. Does not modify any AWS resources,' which is critical safety information for an agent. It could add more detail about side effects or output, but the key non-mutating behavior is clearly disclosed.

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 three short sentences with no filler: purpose, scope, and safety. Every sentence contributes important information, and the key qualifier 'only' is front-loaded.

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?

For a low-complexity tool with zero required parameters and 100% schema coverage, the description is mostly adequate. However, with no output schema, it does not mention what the scan returns or how results are presented, and it does not relate this tool to the broader scan_all/scan_group workflow. These are meaningful gaps for an agent deciding how to use the result.

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%, and both parameters already have meaningful descriptions in the schema. The tool description adds no additional parameter-level semantics, so the schema carries the load. This meets the baseline for high schema coverage.

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 states a specific verb and resource: 'Run Idle Resources security scanner only.' This clearly identifies what the tool does and distinguishes it from the many sibling scanning tools by narrowing the scope to idle resources. The read-only note reinforces the purpose.

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?

The description gives no guidance about when to use this tool versus alternatives like scan_all, scan_group, or the other scan_* tools. It only says 'only,' which hints at scope but does not explain when an agent should choose this tool or when it should not.

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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