SuperPlane Canvas Builder

Translate workflow requirements into SuperPlane canvas YAML.

Quick Reference

Order of Operations

Always follow this sequence. The CLI is the primary path — it gives exact names, IDs, and schemas that documentation cannot reliably substitute.

1. Verify CLI and Connect

superplane whoami

If command not found: stop. Tell the user to install the CLI from https://docs.superplane.com/installation/cli and re-run the task. Do not attempt to install it on their behalf. Do not silently fall back to doc-based design.

If not yet connected:

superplane connect <URL> <TOKEN>
superplane whoami

If connection details are not available, stop and ask the user to connect/provide the required URL and token. Do not continue without a working CLI session.

2. Understand the Workflow

Before running discovery commands, identify what the workflow needs:

• What starts it? → trigger (schedule, webhook, GitHub push, manual)
• What steps happen? → each step is a component node
• Any decisions? → If or Filter components for branching
• Any waits? → Approval, Time Gate, Wait components
• Which external systems? → each maps to a provider (e.g., GitHub, Slack, Daytona)

Collect the list of required providers from this analysis — you will check them in the next step.

3. Discover and Verify Integrations

Run superplane integrations list to get all connected integrations in the org. Compare against the required providers from step 2.

If any required provider is missing: stop and tell the user before writing any YAML. Example:

This canvas needs GitHub and Daytona integrations. Your org has GitHub connected but Daytona is not connected. Please connect it in the SuperPlane UI (Settings → Integrations) before proceeding.

Do not generate YAML that references providers the org has not connected — it will fail with “integration is required” on every affected node.

Once all providers are confirmed connected, discover exact names and schemas:

superplane integrations list                          # connected instances → real integration IDs
superplane index triggers --from <provider>           # exact trigger names
superplane index components --from <provider>         # exact component names

Inspect required config fields, output channels, and payload shape:

superplane index triggers --name github.onPush --output json
superplane index components --name semaphore.runWorkflow --output json

List runtime options for integration-resource fields:

superplane integrations list-resources --id <id> --type <type>

4. Select Components and Wire the Graph

Use the exact trigger and component names from step 3 — not guesses from documentation.

• If the trigger supports built-in filtering (content filter, action filter, ref filter), configure it at the trigger level. Only add a separate Filter or If node when you need logic the trigger’s native config cannot express.
• Every component needs at least one incoming edge
• Triggers have no incoming edges
• Use named channels for branching (If → true/false, Approval → approved/rejected)
• Filter only emits to default when the expression is true; false events stop silently
• Use Merge to fan-in parallel branches

See Components & Triggers Reference for the full list.

5. Position Nodes

Every node needs a position: { x, y }. Nodes are 515px wide × 215px tall — use these spacing rules to prevent overlap:

Start the first node (trigger) at { x: 120, y: 100 }.

Linear pipeline — same y, increment x:

Trigger: { x: 120, y: 100 }  →  Step A: { x: 720, y: 100 }  →  Step B: { x: 1320, y: 100 }

Branching — branches share the same x column, spread on y. Center the source node vertically relative to its branches:

                                ┌─ Branch A: { x: 1320, y: 100 }
Source: { x: 720, y: 250 }  ───┤
                                └─ Branch B: { x: 1320, y: 400 }

Fan-in (Merge) — next x column after branches, y centered between them:

Branch A: { x: 1320, y: 100 } ──┐
                                 ├── Merge: { x: 1920, y: 250 }
Branch B: { x: 1320, y: 400 } ──┘

For 3+ branches, keep adding 300 to y for each branch and center the source/merge accordingly.

6. Configure Expressions

STOP before writing any expression that references payload fields you have not confirmed. Do not guess field paths from trigger or component names.

Envelope

Every node output is wrapped in an envelope: { data: {...}, timestamp, type }. All three access patterns return this envelope, so you always need .data. to reach the actual payload:

Common mistake: writing $['Create Sandbox'].id instead of $['Create Sandbox'].data.id. Always include .data..

Use double curly braces {{ }} for expressions in configuration fields:

{{ $['GitHub onPush'].data.ref }}

How to confirm payload fields

Check these sources in order — use the first one available:

1. Existing executions — inspect real payloads from prior runs (most reliable):

   superplane executions list --canvas-id <id> --node-id <nid> -o yaml
   

2. Provider reference files in this skill — check the references/ directory for the provider you are using. These contain payload examples and known gotchas.

3. SuperPlane docs — fetch the provider’s component page from the LLM-friendly docs:

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

After the first real execution, always go back to source 1 to verify and correct expressions. The trigger name does not map 1:1 to payload structure — always check the provider reference file or docs for the actual webhook event a trigger maps to.

6b. Command Node Best Practices

When a component executes shell commands (e.g., daytona.executeCommand, ssh):

• Use the component’s native workingDirectory / envVars config instead of inline cd or export in the shell string. This reduces quoting complexity and failure surface.
• Redirect verbose output to a file and emit a concise status marker to stdout (e.g., STEP_OK / STEP_FAILED). Large or binary stdout can cause node processing issues.
• Check the provider reference file (references/ directory) for the shell execution model, hardened command templates, and known failure patterns specific to that integration.

7. Apply

superplane canvases create --file canvas.yaml
# or update an existing canvas:
superplane canvases update --file canvas.yaml

Then verify:

superplane canvases get <name>

Check for errorMessage or warningMessage on any node.

Common Patterns

Linear: Trigger → A → B → C

nodes:
  - { id: trigger, ..., position: { x: 120, y: 100 } }
  - { id: a, ..., position: { x: 720, y: 100 } }
  - { id: b, ..., position: { x: 1320, y: 100 } }
  - { id: c, ..., position: { x: 1920, y: 100 } }
edges:
  - { sourceId: trigger, targetId: a, channel: default }
  - { sourceId: a, targetId: b, channel: default }
  - { sourceId: b, targetId: c, channel: default }

Branch: If → true / false

nodes:
  - { id: trigger, ..., position: { x: 120, y: 250 } }
  - { id: check, ..., component: { name: if }, position: { x: 720, y: 250 } }
  - { id: on-true, ..., position: { x: 1320, y: 100 } }
  - { id: on-false, ..., position: { x: 1320, y: 400 } }
edges:
  - { sourceId: trigger, targetId: check, channel: default }
  - { sourceId: check, targetId: on-true, channel: true }
  - { sourceId: check, targetId: on-false, channel: false }

Gate: Filter (pass or stop)

Filter only emits to default when true. False events stop — no edge needed.

nodes:
  - { id: trigger, ..., position: { x: 120, y: 100 } }
  - { id: filter, ..., component: { name: filter }, position: { x: 720, y: 100 } }
  - { id: next-step, ..., position: { x: 1320, y: 100 } }
edges:
  - { sourceId: trigger, targetId: filter, channel: default }
  - { sourceId: filter, targetId: next-step, channel: default }

Fan-out / Fan-in

nodes:
  - { id: trigger, ..., position: { x: 120, y: 250 } }
  - { id: a, ..., position: { x: 720, y: 100 } }
  - { id: b, ..., position: { x: 720, y: 400 } }
  - { id: merge, ..., position: { x: 1320, y: 250 } }
  - { id: final, ..., position: { x: 1920, y: 250 } }
edges:
  - { sourceId: trigger, targetId: a, channel: default }
  - { sourceId: trigger, targetId: b, channel: default }
  - { sourceId: a, targetId: merge, channel: default }
  - { sourceId: b, targetId: merge, channel: default }
  - { sourceId: merge, targetId: final, channel: default }

Approval Gate

nodes:
  - { id: ci-done, ..., position: { x: 120, y: 100 } }
  - { id: timegate, ..., position: { x: 720, y: 100 } }
  - { id: approval, ..., position: { x: 1320, y: 100 } }
  - { id: deploy, ..., position: { x: 1920, y: 100 } }
edges:
  - { sourceId: ci-done, targetId: timegate, channel: default }
  - { sourceId: timegate, targetId: approval, channel: default }
  - { sourceId: approval, targetId: deploy, channel: approved }

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

References

• Components & Triggers — Built-in components and trigger types
• GitHub — Triggers, components, payload examples, gotchas
• Daytona — Components, payload examples, gotchas