Reddit Commenter Skill
Reddit Comment Automation - From Exploration to Posting and Tracking
Required Tool: Playwright MCP
This skill uses Playwright MCP to interact with Reddit.
Main MCP Tools
| MCP Tool | Purpose |
|---|
browser_navigate | Navigate to Reddit pages |
browser_snapshot | Capture page structure (accessibility tree) |
browser_click | Click elements (comment box, buttons, etc.) |
browser_type | Input text (comment content) |
browser_wait_for | Wait for page loading |
⚠️ Important Notes When Using Playwright MCP
- Minimize tokens: When calling MCP, don't pass entire conversation context—only concisely summarize the essential information needed for that action
- Direct navigation: Navigate directly to URLs with
browser_navigate rather than clicking elements (prevents click errors, saves tokens)
- Concise instructions: Pass only minimal instructions like "Navigate to [URL]", "Click [element]", "Type: [text]"
- ⚠️ No screenshots: Do NOT use
browser_take_screenshot. Always use only browser_snapshot for page verification (accessibility tree is sufficient and doesn't save files)
Execution Workflow
Step 1: Check Activity Status and Select Subreddit
1. Check today's date file in tracking/reddit/ folder
→ File name: YYYY-MM-DD.md (e.g., 2026-01-12.md)
→ If file doesn't exist, create new one referencing template.md
2. Check activity status table by subreddit:
- How many comments posted in each subreddit today
- Check subreddits under daily limit (3)
- Check last comment time (minimum 5-10 minute intervals)
3. Select next subreddit for commenting:
- Prioritize subreddits with no activity today or under limit
- Prioritize subreddits with oldest last activity time
4. Check subreddit specifics in resources/subreddits.md:
- Core community rules
- Community nature
- Good topics to answer
→ Reflect this information when selecting posts
Step 2: Access Reddit and Explore Posts
1. Access Reddit with Playwright MCP
→ browser_navigate("https://www.reddit.com/r/{selected_subreddit}/new/")
or
→ browser_navigate("https://www.reddit.com/r/{selected_subreddit}/rising/")
2. Page snapshot
→ browser_snapshot()
3. Criteria for selecting posts to comment on:
• Posts where you can share insights or provide feedback
• ⚠️ CRITICAL: Posts you haven't commented on today
- Check activity log in tracking/reddit/today's-date.md file
- Extract list of post URLs from today's comments
- Verify selected post URL is NOT in that list
- Absolutely NO duplicate comments on same post
• OK even if not related to your service/field
• Relevance to "good topics to answer" from Step 1
• Avoid posts with already hundreds of comments
4. Secure URL of selected post
→ Check and record post link in snapshot
→ Navigate directly to this URL in next Step
Step 3: Deep Analysis of Post Content and Existing Comments
⚠️ CRITICAL: Must perform this step before writing comment
0. Navigate directly to post
→ browser_navigate(post URL secured in Step 2)
→ Navigate directly to URL, don't click on post (prevents click errors)
→ browser_snapshot()
1. Read post content accurately:
- Understand what OP is actually asking
- Don't react only to keywords—understand full context
- Distinguish between hypothetical questions and actual problem complaints
2. Understand OP's intent:
- Seeking specific help? (problem solving)
- Seeking opinions/discussion? (hypothetical scenario)
- Information sharing? (experience story)
3. Analyze existing comments:
- Check how others interpreted
- Understand how community is receiving this post
- Check tone and answering style
4. Decide comment direction:
- Is this post worth answering?
- From what angle should I answer?
- Can I naturally answer in my style?
5. ⚠️ CRITICAL: Determine if site/link verification needed:
- Did OP provide website/app link?
- Are there expressions like "feedback requested", "honest feedback", "looking for feedback"?
- Is feedback requested on UX, design, performance that requires actual verification?
→ If YES:
• Visit actual site with browser_navigate(provided link)
• Check UI/UX with browser_snapshot()
• Write feedback based ONLY on what you actually saw
• Absolutely NO speculative feedback on things you didn't see
→ If NO:
• Can answer from post content alone
• General advice or experience sharing
⚠️ Proceed to Step 4 only after clearly verifying analysis results
Step 4: Write Comment
1. Draft comment based on Step 3 analysis results:
- Answer matching OP's actual question
- Practically helpful content
- Match subreddit tone
- Focus on 1-2 points (don't try to explain everything)
Step 5: Personalization Review (Loop)
1. Check resources/personalization_reddit.md file
→ Sequentially check 16 personalization checklist items based on actual comment style
→ Especially important: #4 personal experience, #13 experience pattern, #15 question intent understanding, #16 site verification
2. Check style patterns:
• Which pattern (1-8) is it closest to?
• Does it capture that pattern's characteristics well?
• Does it look like you wrote it?
3. Review process:
• All items PASS → Proceed to Step 6
• Any violation → Revise comment and re-review from Step 5 beginning
Detailed personalization guide: See resources/personalization_reddit.md
Step 6: Post Comment
1. Click comment input box
→ Check comment input element after browser_snapshot()
→ browser_click(comment box ref)
2. Input comment content
→ browser_type(reviewed comment)
3. Click post button
→ browser_click(post button ref)
4. Secure comment URL
→ Copy comment permalink after posting
Step 7: Judge Potential Customer (Optional)
⚠️ CRITICAL: Judge accurately by referring to Step 3 analysis again
→ Refer to "Lead Selection Criteria" in leads/reddit.md
→ Classify as lead only users with actual problems (not hypothetical questions)
When lead discovered, update leads/reddit.md:
- Username, subreddit, post URL
- Post summary, selection reason, relevance
Step 8: Update Tracking
Update tracking/reddit/[today's-date].md file:
1. Activity status table by subreddit:
- Increment comment count for that subreddit by +1
- Update last comment time
2. Add to activity log:
### [HH:MM] r/subreddit
- **Post**: [Title](URL)
- **Topic Summary**: One-line summary of post content
- **Comment Link**: [Comment URL]
- **Comment Content**:
Full comment written
3. When potential customer discovered:
- Update 'leads/reddit.md' when potential customer discovered
File Reference Rules (Token Savings)
| File | Reference Timing |
|---|
resources/subreddits.md | Step 1 (subreddit selection) |
resources/personalization_reddit.md | Step 5 (review) |
resources/product.md | Step 7 (potential customer judgment) |
leads/reddit.md | Step 7 (lead criteria check) |
→ Reference only at relevant Step, don't read in advance
Cautions
- Login Required: Check Reddit account login status
- Rate Limiting: Too fast activity risks account restrictions
- Community Rules: Must follow each subreddit's rules
- Spam Prevention: Absolutely NO copy-pasting same content
- Review Required: Rewrite if any checklist item violated
- ⚠️ Step 3 Required: NEVER write comment without analyzing post content. Judging only by keywords can cause serious errors
- ⚠️ Minimize Playwright MCP tokens:
- Don't pass entire context when calling Playwright MCP
- Concisely summarize only essential information needed for each MCP call
- E.g.: Only minimal instructions like "Navigate to [URL]", "Click comment box", "Type: [text]"
- Prevent errors from excessive input tokens
- ⚠️ Post Navigation: Use browser_navigate directly with URL instead of clicking post (prevents click errors)