mancube/dagron-mcp repository overview

⁠dagron MCP server (mancube/dagron-mcp)

The open-source dagron MCP server — drive workflows from an AI agent over the Model Context Protocol⁠ (JSON-RPC on stdio).

• Image: mancube/dagron-mcp — a Rust binary on distroless/cc (no shell, no package manager), runs as nonroot (uid 65532).
• Arch: linux/amd64, linux/arm64
• Runtime: stdio JSON-RPC (protocol 2024-11-05) · no ports (launched by an MCP client as a subprocess)
• Talks to: dagron-api (the auth + management API), never the engine directly
• Website: dagron.dev · Source / full docs: github.com/lucheeseng827/dagron · Apache-2.0

⁠Tools

Forty-two tools over the same JWT-gated API the browser uses:

• Drive — dagron_list_runs, dagron_get_run, dagron_submit_run (with parameters + Idempotency-Key), dagron_cancel_run, dagron_wait_run
• Author — dagron_create_workflow, dagron_update_workflow, dagron_delete_workflow, dagron_set_workflow_state, dagron_run_workflow, dagron_list_workflows, dagron_get_workflow, dagron_list_workflow_runs, dagron_list_workflow_versions
• Recover — dagron_rerun_run, dagron_resubmit_run, dagron_retry_task, dagron_clear_task, dagron_redrive_dead_letter, dagron_delete_dead_letter, dagron_triage_run, dagron_clear_triage
• Gates — dagron_list_approvals, dagron_approve_task, dagron_reject_task
• Inspect — dagron_get_run_logs, dagron_get_task_logs, dagron_get_run_graph, dagron_get_run_spec, dagron_get_artifact, dagron_artifact_exists, dagron_put_artifact
• Observe — dagron_get_metrics, dagron_get_metrics_timeseries, dagron_get_health, dagron_search, dagron_list_dead_letters, dagron_get_run_events
• Lineage & archive — dagron_list_datasets, dagron_get_dataset_events, dagron_list_archived_runs, dagron_get_archived_run

Eighteen of them change cluster state. Set DAGRON_MCP_READONLY=1 to hide and refuse all eighteen, leaving the 24 read tools.

⁠Tags

Pin in production — pick the newest published tag rather than copying a version from this page, which ages.

⁠Run

Launched by an MCP client over stdio — protocol on stdout, logs on stderr:

docker run -i --rm \
  -e DAGRON_API_URL=http://host.docker.internal:8080 \
  -e DAGRON_MCP_TOKEN=<session-jwt> \
  mancube/dagron-mcp:latest

MCP client (mcpServers) entry:

{
  "mcpServers": {
    "dagron": {
      "command": "docker",
      "args": ["run", "-i", "--rm",
               "-e", "DAGRON_API_URL", "-e", "DAGRON_MCP_TOKEN",
               "mancube/dagron-mcp:latest"],
      "env": {
        "DAGRON_API_URL": "http://host.docker.internal:8080",
        "DAGRON_MCP_TOKEN": "<session-jwt>"
      }
    }
  }
}

⁠Configuration