DocsWorkflowsComponentsStoragestorage:local:file:write

storage:local:file:write

Writes or appends content to a file, optionally deleting it first

Options

NameTypeDescription
pathstringDestination file path, resolved inside the host's file root
appendboolWhen true, content is appended to the existing file instead of overwriting
contentanyThe content to write; must be a string or []byte
deleteboolWhen true, deletes the file before writing (ignored when Append is true)

Outputs

NameTypeDescription
pathstringThe path of the written file

Examples

name: Write a model's answer to disk
actions:
  - name: answer
    component: llm:generate
    vars:
      provider: openai
      model: gpt-5
      prompt: "{{ var.prompt }}"

  - name: saved
    component: storage:local:file:write
    vars:
      path: ./out/answer.md
      content: "{{ answer.content }}"

outputs:
  path: "{{ saved.path }}"

Append

Appends to a file instead of replacing it. With append: true the existing content stays and the new content lands after it, which suits run logs and growing exports.

name: Append to a run log
actions:
  - name: log_line
    component: storage:local:file:write
    vars:
      path: ./runs.log
      append: true
      content: "{{ var.run_id }} finished\n"

outputs:
  path: "{{ log_line.path }}"