Coolify MCP Server

bulk_update_application_envs

Update multiple environment variables for an application at once, efficiently managing many variables in a single operation.

Instructions

Update multiple environment variables for an application in a single operation. Efficient for updating many variables at once.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "uuid": "<uuid>",
      "envs": "<envs>"
    },
    "name": "bulk_update_application_envs"
  }
}

Input Schema

Name	Required	Description	Default
`envs`	Yes	Array of environment variables to update or create.
`uuid`	Yes	UUID of the application to update environment variables for.

Schema Changelog

Changes observed during successful MCP inspections.

First observedv1.0.0Jul 13, 2026

TDQS

A3.6/5.0

Behavior2/5

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

No annotations exist, so the description must fully disclose behavioral traits. It only says 'Update' and 'Efficient', omitting critical details like whether the operation is atomic, overwrites or merges, authentication needs, rate limits, or behavior on partial failure.

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 extremely concise: two short sentences. The first states the purpose, the second adds a benefit. No unnecessary words.

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?

For a bulk write operation with no output schema and no annotations, the description is too minimal. It does not explain that the 'envs' array can also create new variables (uuid optional), atomicity, error handling, or return behavior.

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 additional meaning beyond the schema's field descriptions.

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 uses a specific verb ('Update') and resource ('environment variables for an application'), clearly distinguishing it from sibling tools like 'update_application_env' (single update) and 'bulk_update_service_envs' (service variant).

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

Usage Guidelines4/5

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

The description states it is 'Efficient for updating many variables at once', implying it should be used over the single-update alternative when multiple variables need changes. However, it does not explicitly state when not to use it or mention the single-update sibling.

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