Platform-specific intel for harvesting Reddit trends across niche subreddits — upvote-velocity ranking, harvest URLs per-sub (hot/rising/top/new), mod-rules pre-flight that prevents removed posts, per-sub culture map for tech / AI / startup niches, title patterns and dead patterns in 2026. Activates inside an octoweb:trend session whenever the user names Reddit.
Installation
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
Platform-specific intel for harvesting Reddit trends across niche subreddits — upvote-velocity ranking, harvest URLs per-sub (hot/rising/top/new), mod-rules pre-flight that prevents removed posts, per-sub culture map for tech / AI / startup niches, title patterns and dead patterns in 2026. Activates inside an octoweb:trend session whenever the user names Reddit.
license
Apache-2.0
compatibility
Octoweb browser access. Logged-out works for most surfaces; logged-in needed for personalized feeds.
This skill carries the platform-specific mechanics the octoweb:trend agent needs to harvest Reddit — current ranking signals (upvote velocity + comment depth + flag tax), per-sub harvest URLs, the mod-rules pre-flight that prevents wasted recommendations, per-sub culture map for the AI / dev / startup niches, title patterns, dead patterns, timing. The agent owns the shared DNA loop; this skill plugs the Reddit parameters in.
Mental model
Reddit is not one audience. Each subreddit has its own ranker quirks, allowed formats, mod culture, and reader expectations. A title that crushes in r/Entrepreneur dies on r/MachineLearning. The hot ranker rewards first-hour velocity heavily — the first 60 minutes decide whether a post hits the sub's top or dies in new. The brief must be per-sub, not pan-Reddit. Mod-rules pre-flight is non-negotiable — recommending a post that violates a sub's rules wastes the user's submission and risks bans.
Rules
Current ranking signals (2026)
Signal
Effect
Upvotes per hour, first 4h
Primary signal. >100/h in a 100k sub = climbing, >500/h = breakout
Comment-to-upvote ratio
Discussion signal. >10% high engagement, >20% controversial-or-deep
Cap parallel tabs at 8–12. Run multiple harvest passes if more subs needed.
If a feed lazy-loads slowly, scroll incrementally and wait for posts to render before extracting — stay on www.reddit.com.
Mod-rules pre-flight (mandatory)
For every target sub, navigate to /r/<sub>/about/rules/ (or sidebar) BEFORE making recommendations. Flag:
Self-promotion ratios (9:1 rule is common)
AI-generated content disclosure requirements
Required post tags / flair
Restricted post types (no link posts, no image posts)
Weekly thread requirements ("ask all questions in the weekly thread")
New-account / low-karma posting limits
If the user's planned angle clearly violates a sub's rules, do not recommend that sub for that angle. Say so explicitly in the brief.
Scoring rubric (Reddit-specific signals)
Virality axis 0–5:
Upvotes per hour in first 4h — primary signal
Comment-to-upvote ratio
Upvote ratio (visible on post page)
OP-comment density in first hour
Crosspost reach when present
Niche-fit axis 0–5:
Sub-fit — does the user's angle match this sub's actual culture?
Topic-fit — direct / adjacent / format-transplant / off
Score per sub, not pan-Reddit. A 4×4 in r/MachineLearning matters more than 5×2 in r/all.
Per-sub culture map (verify each at runtime — rules drift quarterly)
Sub
Culture
What wins
What gets removed
r/MachineLearning
Academic, gatekept
Paper discussion, novel results, deep technical. Tag with [R] / [D] / [P] / [N]
Marketing, AGI hype, no-paper "discussion"
r/LocalLLaMA
Practitioner, hardware-aware
Model benchmarks, quantization tricks, hardware setups, local-runtime tips
SaaS marketing, closed-model hype with no local angle
r/programming
Skeptical, language-agnostic
Blog posts with depth, war stories, "I read the source of X"
Listicles, "10 tools every dev needs", AI slop
r/startups
Bootstrappers + funded
Honest revenue posts, MRR breakdowns, lessons from failure
"I built X in 3 hours" wrappers, low-effort idea validation
r/SaaS
Indie SaaS, transparent
Real metrics, churn experiments, pricing experiments
Fake success stories, growth-hack listicles
r/Entrepreneur
Mixed quality, hustle-friendly
Specific operator playbooks
Generic motivation, "how I made $1M in 30 days"
r/ChatGPT
Casual, mainstream
Cool prompts, weird outputs, image gens
Technical depth goes ignored
r/ClaudeAI
Small, technical-curious
Workflow comparisons, system prompt tactics, Claude-specific tips
Open-and-shut "Claude vs X" posts
r/singularity
Speculative
Big-picture takes, frontier model commentary
Hands-on technical posts
Title patterns that work
Specific result + setup — "Ran [X] on [Y]: here's the [Z] result"
Contested claim — "I think [X] is wrong. Here's my [data/setup/code]"
Honest failure — "[X] didn't work. Here's what I tried and what broke"
Novel artifact — "[New thing] I built / paper I read — sharing for discussion"
Targeted question with context — "How do you handle [specific thing]? Here's my current approach and where it fails"
Dead title patterns
ALL CAPS or excessive punctuation
"[Question for the community]" / "[Help]" / "[Question]" prefixes
Vague titles ("Help" / "Anyone else?")
Marketing slogans ("The [adj] way to [verb]")
"Am I the only one who..." engagement bait
ShowHN-style "I built X" without specifics — wrong platform tell
Timing
US-skewed subs: Tue–Thu 9–11 AM ET and 7–9 PM ET. Weekend mornings for hobby subs.
EU/global subs (r/MachineLearning, r/programming): morning ET captures EU evening. Avoid 2–6 AM ET.
Posting late = new-queue bury. Velocity must hit in the first 30 minutes.
Saturated-take detection per sub
Always run a /new/ sample on each target sub. If 5+ recent posts hit the same angle in the last 48h and most are underperforming, mark the angle saturated for that sub.
Examples
Example 1: Per-sub recommendation with mod-clearance
Bad — pan-Reddit recommendation, no mod check:
Submit a post about your new RAG framework to r/MachineLearning and r/SaaS.
Good — per-sub, mod-cleared, format-prescribed:
Target: r/LocalLLaMA (412k subscribers)
Mod-rules flags checked: no AI-content disclosure required; self-promo allowed if technical depth is genuine; flair required (choose "Discussion" or "Resources").
Format mix this week: text 62% / link 28% / image 10%.
Angle: "Quantization tradeoffs we measured for {{niche model}} at 4-bit vs 8-bit on consumer GPUs"
- Format: text post with embedded chart screenshot
- Flair: Resources
- Title pattern: specific result + setup
- Why it's open: 3 quantization posts in last week, all anecdotal; gap is rigorous measurement
- Mod-clearance: passes
- Survival probability: high — OP-engagement readiness is critical (be ready to answer hardware questions in first hour)
DO NOT submit to r/MachineLearning — mod rules require paper / arxiv link for the [R] flair, anecdote-based posts get removed.
Example 2: Flagged post as teaching example
r/programming — "AI will replace developers in 2 years"
3.2k upvotes, 487 comments, 62% upvote ratio. Now [removed by mods].
Reason inferred: low-effort hot take, no technical content, breaks rule 1 (must be programming content).
Lesson: this sub will surface low-effort hot takes briefly via upvote velocity, then remove them. Do not target this angle.
Checklist
Before returning the Reddit section of the brief:
Every recommended sub had its rules / sidebar checked at runtime
Every cited post has subreddit, title (verbatim), upvotes, upvote ratio, comments, OP karma band, URL, age
Removed / flagged posts surfaced when visible — they teach what the sub rejects
Scored per sub, not pan-Reddit
Format mix per sub noted (text / link / image / video percentages this week)
Per-sub culture map applied — recommendations match sub's actual norms
(Opt-in mode only) Title bank entries each fit one of the title patterns from this skill
Dead-title-pattern list applied — no recommended title uses ALL CAPS, vague help asks, engagement bait, or marketing slogans
(Opt-in mode only) OP-engagement plan included — what top comments to anticipate in first hour
(Opt-in mode only) Crosspost order recommended if relevant (smaller niche sub first for velocity, then larger)
All background tabs closed
Composition / References
Pairs with social-reddit (content domain) for writing the actual submission body from the brief.