preview_snippet
Preview (test-run) a Code Glue snippet — Test-run a snippet (by snippet_id, or raw code) against a real captured payload WITHOUT dispatching anything.
Test-run a snippet (by snippet_id, or raw code) against a real captured payload WITHOUT dispatching anything. Pass webhook_id+trigger to use that webhook's captured example with its stored field mapping applied — the exact array the snippet gets at dispatch — or provide an explicit payload. Returns input_payload (what the snippet received), the resulting payload, any PHP error and printed output; if the result is identical to input_payload, the code matched nothing. Always preview before assigning. Registered as the WordPress Ability flowsystems-webhook-actions/preview-snippet, so external AI tools (Claude Code, Cursor) can call it over MCP, or over the Abilities REST route with a scoped API token.
/ Plan step shape
{ "ability": "preview_snippet", "input": { "snippet_id": …, "code": …, "webhook_id": …, "trigger": …, "payload": …, "mode": … } }
/ Scope & confirmation
Minimum API-token scope for external (MCP/REST) callers: full. Runs without a confirmation pause (the overall plan is still user-approved before execution starts).
/ Input fields
| Name | In | Type | Req | Description |
|---|---|---|---|---|
| snippet_id | param | integer | — | Saved snippet to run; omit when passing code. |
| code | param | string | — | Raw PHP to run instead of a saved snippet. |
| webhook_id | param | integer | — | With trigger: use this webhook's captured example payload. |
| trigger | param | string | — | |
| payload | param | object | — | Explicit test payload; overrides the captured example. |
| mode | param | string | — | Default pre. pre | post |
/ Examples
Plan step as Build with AI proposes it
{ "id": "step_1", "ability": "preview_snippet", "summary": "…", "input": { "snippet_id": 4, "webhook_id": 12, "trigger": "woocommerce_order_status_completed" } }
/ Related
