Terraform Operations

Gateway Script

All operations MUST use the gateway script at ${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py.

Configuration

The following environment variable MUST be set:

• TFE_TOKEN - HCP Terraform API token (create at https://app.terraform.io/app/settings/tokens)

The following environment variable is required for workspace/run operations:

• TFE_ORG - Default organization name (required for: workspace-status, list-runs, watch-run, run-outputs)

The following environment variable MAY be set:

• TFE_ADDRESS - TFC/TFE URL (default: https://app.terraform.io)

Note: Provider documentation commands (provider-docs, list-providers) do not require TFE_ORG.

Quick Reference

TFC Operations

run-details

View details and formatted logs for a completed run. Parses JSON logs into human-readable format, reducing token usage by ~70%.

# View completed run with formatted logs
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py run-details run-abc123

Output includes:

• Run status and commit message
• Resource change summary (+add ~change -destroy)
• Formatted plan output (errors, warnings, change summary)
• Formatted apply output (for successful runs)

Errors are displayed as:

ERROR: Reference to undeclared resource
  File: main.tf:32:20
  Detail: A managed resource "aws_instance" "web" has not been declared...

watch-run

Monitor an in-progress run with live status updates. For completed runs, use run-details instead.

# Watch specific run (will suggest run-details if already complete)
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py watch-run run-abc123

# Watch latest run for workspace
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py watch-run --workspace my-workspace

# Include raw logs when complete (prefer run-details for formatted output)
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py watch-run --workspace my-workspace --logs

Options:

• --workspace, -w - Watch latest run for workspace
• --logs, -l - Show raw plan/apply logs when run completes
• --interval, -i - Poll interval in seconds (default: 5)
• --timeout, -t - Maximum wait time in seconds (default: 3600)

Behavior:

• If run is already complete, suggests using run-details instead
• Polls status at regular intervals for in-progress runs
• Displays status changes with timestamps
• Shows plan summary (resource additions/changes/destructions)
• Exits with code 0 for success states, 1 for failure states

workspace-status

Show workspace overview or detailed info.

# List all workspaces
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py workspace-status

# Single workspace detail
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py workspace-status my-workspace

list-runs

List recent runs for a workspace.

# Recent runs
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py list-runs my-workspace

# With limit
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py list-runs my-workspace --limit 20

# Filter by status
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py list-runs my-workspace --status errored

run-outputs

View terraform outputs from a run.

# From specific run
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py run-outputs run-abc123

# From latest successful run
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py run-outputs --workspace my-workspace

Documentation Lookup

provider-docs

Look up provider resource documentation.

# Provider overview
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py provider-docs aws

# Specific resource
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py provider-docs aws --resource lambda_function

# Data source
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py provider-docs aws --data-source ami

# List available resources
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py provider-docs aws --list-resources

list-providers

Search for providers.

# Search
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py list-providers --search cloud

# By namespace
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py list-providers --namespace cloudflare

Output Options

--format yaml    # YAML output (default)
--format json    # Compact JSON
--format compact # Minimal output

Tool Discovery

When unsure about MCP tool parameters:

# List all available tools
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py list-tools

# Get tool schema
${CLAUDE_PLUGIN_ROOT}/skills/terraform/scripts/terraform_mcp.py describe <tool_name>

Best Practices

• SHOULD use run-details <run-id> for viewing completed runs (formatted output, reduced tokens)
• SHOULD use watch-run --workspace <name> for monitoring in-progress runs
• SHOULD use workspace-status to get an overview before investigating runs
• MUST NOT use raw MCP tools directly when a workflow exists
• SHOULD prefer run-details over watch-run --logs for completed runs

Domain References

Load these as needed for detailed operations:

• workspaces.md - Workspace management details
• runs.md - Run status and lifecycle
• providers.md - Provider documentation lookup