feat: add API endpoint and CLI command to retrieve workflow input

[catsby]

Adds API/CLI to get the input used from a workflow.

Example usage:

❯ output workflow input 5n0pcHLKGXb7HwAJ8-KZo
{
  "urls": [
    "https://a.com",
    "https://b.com",
    "https://c.com",
    "https://d.com"
  ],
  "delayMs": 5000
}

Write to file:

❯ output workflow input 5n0pcHLKGXb7HwAJ8-KZo -o file.json
Wrote workflow input to /Users/clint/go/github.com/growthxai/output/.claude/worktrees/cli_workflow_input/file.json

❯ cat file.json
{
  "urls": [
    "https://a.com",
    "https://b.com",
    "https://c.com",
    "https://d.com"
  ],
  "delayMs": 5000
}

Note: at time of writing, the --json flag actually provides more information, including the workflow and run ids. I'm not sure if we should keep that, or invert it (--json omits that, but by default we include it):

❯ output workflow input 5n0pcHLKGXb7HwAJ8-KZo --json
{
  "workflowId": "5n0pcHLKGXb7HwAJ8-KZo",
  "runId": "019f0081-835b-7812-9872-897cbc4c01fc",
  "input": {
    "urls": [
      "https://a.com",
      "https://b.com",
      "https://c.com",
      "https://d.com"
    ],
    "delayMs": 5000
  }
}

Also accepts runId:

❯ output workflow input 5n0pcHLKGXb7HwAJ8-KZo --run-id 019f0081-835b-7812-9872-897cbc4c01fc
{
  "urls": [
    "https://a.com",
    "https://b.com",
    "https://c.com",
    "https://d.com"
  ],
  "delayMs": 5000
}

[mintlify]

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Project	Status	Preview	Updated (UTC)
outputai	🟢 Ready	View Preview	Jun 29, 2026, 11:27 PM

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