Post Comment — Reddit Community Agentic Workflow

schema_version: 1
version: "2.0.0"
last_verified: "2026-02-02"
id: reddit_post_comment
title: "Post Comment"
description: "Navigate to a Reddit post on old.reddit.com, type a top-level comment, and submit it. Requires an active Reddit session in the browser."
overview: |
  A write primitive that actually submits a top-level comment on a Reddit thread. It navigates to the post on old.reddit.com, places the supplied body into the comment textarea, performs a submit, and confirms the new comment URL before returning. No drafting logic is included — the caller must pass a final, ready-to-send comment body.

  Because it writes to a public platform, this workflow is intentionally separated from the drafting chains. Compose it after a human approval step or a supervised drafting workflow; never chain it directly behind an unsupervised LLM step.

category:
  level: task
  domain: social
  reusable: true
params:
  post_url: string
  comment_text: string
policies:
  allowed_domains:
    - old.reddit.com
steps:
  - type: browser.navigate
    url: "{{post_url}}"

  - type: browser.wait
    selector: ".commentarea .usertext-edit textarea"
    timeout: 10000

  # Scroll past media/video overlays that can block comment box
  - type: browser.scroll
    direction: down
    amount: 600

  - type: browser.click
    selector: ".commentarea .usertext-edit textarea"

  - type: browser.type
    selector: ".commentarea .usertext-edit textarea"
    text: "{{comment_text}}"

  - type: browser.click
    selector: ".commentarea .usertext-edit button.save"

  - type: browser.wait
    ms: 3000

  # Extract all comments to verify posted text appears
  - type: browser.extractAll
    selector: ".commentarea .comment .usertext-body p"
    as: all_comments
    separator: "\n"

  - type: control.stop
    message: "{{all_comments}}"