Skip to main content
Glama
newen-systems

nifi-mcp

nifi_current_user

Read-onlyIdempotent

Determine which user the configured NiFi credentials represent and review anonymous access and permission flags to troubleshoot access.

Instructions

Who the configured credentials authenticate as, plus anonymous/permissions flags.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A3.5/5.0
Behavior3/5

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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint, so the safety profile is covered. The description adds that the response includes anonymous and permissions flags, which is useful signal about what the call reveals, but says nothing about auth failure behavior or what happens when credentials are unset.

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?

A single compact sentence with no filler, delivered up front. Every clause adds information about the tool's output.

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

Completeness4/5

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

With no parameters and an output schema that documents the return shape, the description only needs to frame what the tool reports, which it does. It could note that this reflects the caller's own credentials rather than arbitrary users, but nothing essential is missing.

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

Parameters4/5

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

The tool takes no parameters, so per the rubric the baseline is 4. The description correctly implies a zero-input query with no filtering needed.

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 names a specific concern — the identity the configured credentials authenticate as — plus the anonymous/permissions flags it surfaces. That is enough to separate it from siblings like nifi_about or nifi_get_health, though the phrasing is slightly cryptic rather than a clean verb+resource statement.

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?

There is no guidance on when to call this versus nifi_about, nifi_get_health, or other read tools, and no mention of prerequisites or when the anonymous flag matters. Usage is only implied by the tool name.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.