Superplane Monitor

command -v superplane

If this does not print a path: stop and tell the user to install the CLI from https://docs.superplane.com/installation/cli. Debugging requires the CLI to inspect events, executions, and queues.

Then verify the current session:

superplane whoami

If whoami fails because of authentication, DNS, timeout, or connection issues, the CLI is installed but the session is not usable yet. Tell the user to connect, fix the context, or allow network access as needed before debugging through the CLI.

If debugging will require canvas edits, apply them as draft updates:

superplane canvases update <name-or-id> --draft --file canvas.yaml

Debugging Workflow

1. Find the Canvas

superplane canvases list

2. List Recent Events

superplane events list --canvas-id <canvas_id>

Each event is a trigger firing that starts a run.

3. Trace the Execution Chain

superplane events list-executions --canvas-id <canvas_id> --event-id <event_id>

Look for:

• Failed — the node that errored
• Pending/Running — possibly stuck
• Skipped — bypassed by a branch (If/Filter)

4. Inspect a Node's History and Payloads

superplane executions list --canvas-id <canvas_id> --node-id <node_id> -o yaml

Check if failures are recurring. For expression errors, inspect the actual payload structure:

• rootEvent.data.data — the trigger's real event payload (the double .data is the event envelope wrapping the webhook payload)
• input — what the node received from its upstream node (also has { data, timestamp, type } envelope)
• resultMessage — the exact error, including which expression field was nil

Use these real payloads to fix expression paths rather than guessing from documentation.

For branching/channel issues, inspect outputs in execution YAML (not just top-level result):

• A node can show RESULT_PASSED while only emitting on a non-default channel (for example, failed)
• Confirm emitted channel names under outputs match edge wiring (success, failed, default, etc.)
• If downstream behavior looks inconsistent with events list-executions, trust the node's outputs block for routing truth

5. Fix and Re-run

Update the canvas, then trigger a new run from the UI or via a manual_run trigger.

superplane canvases update <name-or-id> --draft --file canvas.yaml

Common Failure Patterns

Auth Failure

Node fails immediately with permission error. Check:

superplane integrations list
superplane secrets list

Verify the integration is connected and the secret is valid.

Expression Error

Node fails referencing a missing field. Check:

• Node name matches exactly (case-sensitive) in $['Node Name']
• Upstream node actually emits the expected field
• Root payload contains the expected data

Stuck Queue

Executions pile up without progressing:

superplane queue list --canvas-id <id> --node-id <nid>

Causes: node is paused, Approval waiting for human input, Time Gate holding, external service unresponsive.

Clear stuck items:

superplane queue delete --canvas-id <id> --node-id <nid> --item-id <iid>

Merge Never Fires

Merge waits for ALL incoming edges. If one branch is stuck, filtered out, or failed, Merge blocks. Check every upstream branch.

When to Use Other Skills

Documentation

For agents that can fetch URLs, the full SuperPlane docs are available in LLM-friendly format:

• Compact index: https://docs.superplane.com/llms.txt
• Full content: https://docs.superplane.com/llms-full.txt