Brand Monitor — Reddit Brand & Market Intelligence Engine

AI-powered brand monitoring system. Give it a brand name and it auto-generates a complete monitoring strategy — subreddit tiers, keywords, competitors, urgency rules. Then it runs on cron, scanning Reddit, analyzing sentiment, and pushing alerts + daily digests.

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Architecture

Phase 1: Brand Onboarding (one-time per brand)
  User says "monitor DJI" → Agent analyzes website → generates monitoring plan → user confirms → saved to config

Phase 2: Continuous Monitoring (cron-driven, every 4h)
  Read config → curl Reddit JSON → deduplicate → AI analysis → alert or archive

Phase 3: Reporting (cron-driven, daily/weekly)
  Aggregate results → generate digest → send via Telegram

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Phase 1: Brand Onboarding

When user says "monitor [brand]" or "help me monitor [brand]":

Step 1 — Analyze the Brand

1. Ask user for the brand website URL if not provided (or search for it)
2. Use web_fetch to visit the brand's website
3. Extract:
   • Brand name (English + local name if applicable)
   • Product lines and sub-brands
   • Main product categories
   • Target market / use cases
4. Infer competitors based on industry knowledge + web context
5. Infer common user pain points based on product category

Step 2 — Generate Tiered Monitoring Plan

Build a three-tier subreddit + keyword strategy:

Tier A — Core (brand-specific communities)

• Search for r/{brand} and related subreddits
• Keywords: pain points + opportunity words (no brand name needed since the community IS about the brand)
• Scan interval: every 4 hours
• Example for DJI: r/dji, r/djimini → keywords: flyaway, gimbal issue, firmware bug...

Tier B — Category (industry communities)

• Search for subreddits matching the product category
• Keywords: brand name + product names
• Scan interval: every 8 hours
• Example for DJI: r/drones, r/DronePhotography → keywords: DJI, Mavic, Avata...

Tier C — Interest (broad interest communities)

• Subreddits based on product application scenarios
• Keywords: brand name only (cast wide net)
• Scan interval: every 24 hours
• Example for DJI: r/travel, r/Filmmakers → keywords: DJI, Mavic, Osmo...

Step 3 — Present Plan to User

Send the monitoring plan for confirmation:

Brand Monitor Plan — [Brand Name]

A. Core Communities (scan every 4h):
  - r/xxx — keywords: pain1, pain2, pain3...

B. Category Communities (scan every 8h):
  - r/aaa — keywords: brand1, product1, product2...

C. Interest Communities (scan every 24h):
  - r/ccc — keywords: brand1, product1

Competitors: Competitor1, Competitor2
Critical keywords: recall, injury, lawsuit, class action, fire, explode

Reply "OK" to start monitoring, or tell me what to change.

Step 4 — Save Config

On user confirmation, write the brand profile to memory/brand-monitor-config.json.

Profile structure:

{
  "brand_name": "DJI",
  "display_name": "DJI",
  "website": "https://www.dji.com",
  "enabled": true,
  "created_at": "2026-01-01T12:00:00+08:00",
  "tiers": {
    "A": {
      "subreddits": ["dji", "djimini"],
      "keywords": {
        "pain": ["flyaway", "gimbal issue", "firmware bug"],
        "opportunity": ["love my", "best purchase", "recommend"]
      },
      "scan_interval_hours": 4
    },
    "B": {
      "subreddits": ["drones", "DronePhotography"],
      "keywords": {
        "brand": ["DJI", "Mavic", "Avata", "Air 3"]
      },
      "scan_interval_hours": 8
    },
    "C": {
      "subreddits": ["travel", "Filmmakers"],
      "keywords": {
        "brand": ["DJI", "Mavic", "Osmo"]
      },
      "scan_interval_hours": 24
    }
  },
  "competitors": ["Autel", "Skydio", "Parrot"],
  "urgency_rules": {
    "critical_keywords": ["recall", "injury", "lawsuit", "class action", "fire", "explode", "dangerous", "safety hazard"],
    "high_score_threshold": 50,
    "high_comment_threshold": 20
  }
}

After saving, immediately run a first scan and report a summary to the user.

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Phase 2: Continuous Monitoring (Cron-Driven)

Data Collection

On each cron wake:

1. Read memory/brand-monitor-config.json — if no profiles exist, reply HEARTBEAT_OK
2. Read memory/brand-monitor-state.json for last scan timestamps
3. For each enabled brand, check which tiers are due based on scan_interval_hours
4. For due tiers, fetch posts from Reddit JSON API:

# Tier A: search pain/opportunity keywords within brand community
curl -s -H "User-Agent: BrandMonitor/1.0" \
  "https://www.reddit.com/r/{subreddit}/search.json?q={keywords_OR_joined}&restrict_sr=1&sort=new&t=day&limit=25"

# Tier B/C: search brand keywords within category/interest community
curl -s -H "User-Agent: BrandMonitor/1.0" \
  "https://www.reddit.com/r/{subreddit}/search.json?q={brand_keywords_OR_joined}&restrict_sr=1&sort=new&t=day&limit=25"

Rate limiting: 3 seconds between requests, max 15 requests per cron run.

Deduplication

Compare each post's id against seen_posts in state file. Window: 72 hours.

AI Analysis

For each new post, analyze and produce:

{
  "post_id": "t3_xxxxx",
  "subreddit": "dji",
  "tier": "A",
  "title": "Post title",
  "score": 42,
  "num_comments": 23,
  "url": "https://reddit.com/r/dji/comments/xxxxx",
  "created_utc": 1708300000,
  "sentiment": "negative",
  "intent": "bug_report",
  "urgency": "high",
  "summary": "One-line summary",
  "affected_product": "Mini 4 Pro",
  "competitor_mentioned": null,
  "recommended_action": "Suggested action"
}

Sentiment values: negative, positive, neutral, mixed
Intent values: bug_report, cs_issue, feature_request, positive_showcase, newbie_question, competitor_comparison, buyer_signal, market_insight, general_discussion
Urgency values: critical, high, medium, low

Alert Routing

Urgency	Action
critical	IMMEDIATELY send alert
high	IMMEDIATELY send alert
medium	Archive to daily results, include in digest
low	Archive to daily results only

Alert Format (critical/high)

Brand Alert — [Brand Name]

Severity: [CRITICAL/HIGH]
Post: [Title] (score: X, comments: Y)
Intent: [Bug Report / CS Issue / etc.]
Summary: [one-line summary]
Product: [affected product or "General"]
Action: [recommended action]
Link: https://reddit.com/r/xxx/comments/xxx

Reply "dig deeper" to analyze comments, or "draft reply" to generate a brand response.

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Phase 3: Reporting

Daily Digest

For each enabled brand with results:

[Brand Name] Daily Digest — YYYY-MM-DD

Negative (N):
  1. [intent] Title — score/comments

Positive (N):
  1. [intent] Title — score/comments

Buyer Signals (N):
  - [summary]

Trends:
  - Top discussed topics
  - Sentiment shift vs last 7 days
  - Competitor mentions

Insights:
  - Agent's analysis and recommendations

Weekly Report

[Brand Name] Weekly Report

Overview:
  - Total posts scanned: X
  - Alerts triggered: Y (Z critical)
  - Sentiment distribution: +N% / -N% / ~N%

Trends, Competitor Watch, Product Line Breakdown, Recommendations...

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Interactive Commands

User Says	Agent Does
"monitor [brand]"	Start onboarding flow
"check [brand]"	Run immediate full scan
"dig deeper [post_url]"	Fetch all comments, deep sentiment analysis
"draft reply [post_url]"	Generate brand-appropriate response draft
"daily digest"	Generate and send today's digest immediately
"weekly report"	Generate and send weekly report immediately
"pause [brand]"	Set brand.enabled = false
"resume [brand]"	Set brand.enabled = true
"monitor list"	List all brand profiles with status

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File Locations

File	Purpose
memory/brand-monitor-config.json	Brand profiles, subreddits, keywords, settings
memory/brand-monitor-state.json	Scan timestamps, seen posts, daily results, stats
memory/brand-monitor-assets.json	Saved UGC candidates, positive showcases

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Cron Schedule

Job	Schedule	Purpose
Reddit Scan	Every 4h	Fetch new posts, analyze, alert
Daily Digest	Daily 09:00 (your TZ)	Aggregate and send results

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Edge Cases

Reddit API Rate Limited

Stop scanning, save progress, retry on next cron cycle.

Multiple Brands

Each brand is an independent profile. Cron processes them sequentially. Prioritize Tier A across all brands if approaching request limits.

Overlapping Subreddits

If two brands monitor the same subreddit, scan it once and apply results to both based on keyword matching.