feat: add Terramate Cloud MCP server

[ImIOImI]

MCP Server Information

Server Name: terramate-cloud
Repository URL: https://github.com/terramate-io/terramate-mcp-server
Brief Description: Interact with Terramate Cloud to manage stacks, detect infrastructure drift, track deployments, and review pull request plans. Provides 13 MCP tools covering stack management, drift detection, deployments, PR/MR plan review, and resource listing.

Basic Requirements

• Open Source: License is MPL-2.0 (note: the README badge incorrectly shows MIT — the actual LICENSE file is Mozilla Public License 2.0)
• MCP Compliant: Implements MCP API specification using the mark3labs/mcp-go library
• Active Development: Recent commits (last commit: 2026-02-13)
• Docker Artifact: Dockerfile present (multi-stage Go build, alpine runtime)
• Documentation: README with full setup instructions and tool descriptions
• Security Contact: GitHub security advisories enabled on the repo

Submitter Checklist

• This server meets the basic requirements listed above
• I understand this will undergo automated and manual review.
• I have tested the MCP Server using task validate -- --name SERVER_NAME
• I have built the MCP Server using task build -- --tools SERVER_NAME
• If the server requires credentials to test it, I have shared test credentials using this form

Notes

• A tools.json is included with all 13 tool declarations because the server requires TERRAMATE_API_KEY authentication before it can dynamically list tools, which would cause task build --tools to fail without credentials.
• The server is configured to accept TERRAMATE_API_KEY (secret) and TERRAMATE_REGION (parameter, default: us) for the Docker Desktop config UI.
• The upstream repo already publishes an image to ghcr.io/terramate-io/terramate-mcp-server:latest; this entry requests Docker to build and host it as mcp/terramate-cloud.
• task validate and task build --tools both pass locally (13 tools found, image built as mcp/terramate-cloud).