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vsl8
by vsl8

ansible-test-idempotence

Run an Ansible playbook twice to verify idempotency: confirm no changes occur on the second run and get a pass/fail result.

Instructions

Run a playbook twice and ensure no changes on the second run. Returns recap and pass/fail.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
verboseNo
extra_varsNo
project_rootNo
playbook_pathYes
inventory_pathsNo
ansible_cfg_pathNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior3/5

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

The description discloses the core behavior: running twice and returning recap/pass-fail. However, with no annotations, it could be more transparent about side effects, permissions, or what happens on failure. It is minimally adequate.

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

Conciseness3/5

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

The description is very concise (one sentence plus return info), but it lacks structured detail. It is not front-loaded with key points like required parameters.

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?

Given the tool has 6 parameters and no annotations, the description is insufficiently complete. It does not cover parameter semantics or provide enough context for correct invocation, even though an output schema exists.

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

Parameters1/5

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

The schema has 6 parameters with 0% coverage in the description. The description does not explain any parameter's purpose or usage, leaving the agent to infer from names alone.

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 the tool runs a playbook twice and checks for no changes on the second run, which is a specific and unique purpose. It distinguishes from sibling tools like ansible-playbook which runs once.

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 given on when to use this tool versus alternatives. There is no mention of prerequisites, when not to use, or which sibling tool might be more appropriate.

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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