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Han Han Grader

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← hhanng.github.io

AI Agent Grader

Scoring #01–#120 + 3 special projects · 123 total · FAANG prep · English learning · Mom's English · Product launch · Entrepreneurship · TTTT · AI x Platform · Personal Bot

Last Scan
🎯 2026-05-31  ·  120 / 120 agents live  ·  Avg 4.07 / 5.0  ·  TARGET HIT — #101–#120 graded (20 new) + 12 existing upgraded
4.07
Current Avg 🎯
4.0
Target Avg ✅
123
Agents Graded
30
Perfect (5/5)
79
Scores Updated ↑
0
4.07 / 5.0  ·  🎯 target reached!
Grading Criteria

An agent only needs to score high on one of the nine criteria to earn a higher grade.

Upgrade Recommendations

One targeted feature per agent to reach 4 or 5. These are the highest-leverage builds.

Currently 2 — path to 4
#08 · AI Dev ✅ Upgraded to 4

Bug Explainer

FAANG 20yo

Paste code + error → level-tailored fix. Overlaps with #06 and #07 with no distinct value.

→ Added: Step-through execution trace — now animates code line by line and tracks variable state. Done.
#09 · AI Dev ✅ Upgraded to 4

Git Commit Writer

FAANG 20yoProduct launch

Generates 3 conventional commit messages from a description. Too narrow for FAANG signal.

→ Added: PR description generator + changelog builder + branch naming guide. Now the Dev Workflow Suite. Done.
#11 · AI Dev ✅ Upgraded to 4

Code Comment Generator

FAANG 20yo

Auto-add inline comments and docstrings with beginner/pro toggle. Overlaps with #07 and #08.

→ Added: Docstring format selector (Google / NumPy / JSDoc) + whiteboard mode with Big-O. Now the Code Documentation Suite. Done.
#65 · Star Wars ✅ Upgraded to 4

Star Wars Builder

13yo EnglishTTTT

Character creator + lore browser + trivia. Fun but no alignment to any grading persona.

→ Added: AI story builder + fan wiki generator + web dev tab teaching HTML/CSS/JS + GitHub Pages deploy. Now the Fan Wiki Builder. Done.
#87 · Wellness ✅ Upgraded to 4

Skincare Routine Tracker

AI x PlatformMom's English

AM/PM routine builder with ingredient decoder. No criteria fit in current form.

→ Added: Ingredient safety checker (60 flagged ingredients), bilingual product guide (25 EN/VI categories), 30-day skin journal. Now the Smart Skincare Suite. Done.
#88 · Lifestyle 2 → 4

Glow-Up Tracker & Vision Board

FAANG 20yoPersonal Bot

Vision boards, milestone cards, mood journaling. Creative but no criteria connection.

→ Reframe: Career Vision Board — milestone cards (internship → FTE → L4 → FAANG SF by 2029), skills tracker, 90-day action plan. Add daily Telegram check-in bot ("Did you LeetCode today?"). Two criteria unlocked at once.
Currently 3 — path to 4 or 5
#57 · Pronunciation 3 → 5

Pronunciation & Accent Trainer

13yo EnglishMom's English

Full IPA guide, 40 tongue twisters, 100 mispronounced words, 20-question quiz. Great content — but no audio.

→ Add: Web Speech API voice recording + playback. User reads a word, hears themselves vs. a reference. This one feature flips it from a reading exercise into actual pronunciation training. Content depth already justifies 5.
#18 · Study & CS 3 → 4

Active Recall Coach

FAANG 20yoTTTT

Answer from memory, self-rate, drill weak spots — best-evidenced study technique. But requires users to load their own content.

→ Add: Two pre-loaded deck libraries — FAANG deck (150 DSA terms + data structure definitions) and ESL deck (US high school vocabulary by subject). Pre-loaded content = instant 4, serves both personas without any user setup.
#21 · Career 3 → 4

Cover Letter Generator

FAANG 20yo

JD keyword matching, human-sounding output. Saturated category — dozens of free tools do the same.

→ Add: Company selector (Google / Meta / Amazon / Apple / Netflix) → auto-inserts culture keywords + correct impact framing per company + ATS readability score. Company-specific = irreplaceable. Generic = ignored.
#23 · Career 3 → 4

Resume Bullet Rewriter

FAANG 20yo

Weak → strong, metric-driven, ATS-friendly bullets. Useful but narrow — one output type.

→ Add: Bullet strength scorer (0–10) with before/after comparison showing exactly what changed and why. Display the score visibly. Then add batch rewrite mode for a full resume section at once. Score + batch = tool, not prompt.
#48 · Career 3 → 4

FAANG Application Tracker

FAANG 20yo

Status stages, stats dashboard, CSV export. Clean CRUD — but Notion and spreadsheets do the same for free.

→ Add: AI nudge layer — "You haven't followed up on Google (applied 14 days ago — avg response window closing)." Deadline countdowns + win-rate analytics by company tier. AI insight on top of CRUD = a 4 that no spreadsheet can replicate.
#60 · Productivity 3 → 4

Daily Planner & Task Manager

FAANG 20yo13yo English

4-tab planner with weekly grid, goals, streaks. Well-built but fully generic — no persona fit.

→ Add: One-click template packs on first open — "FAANG Prep Daily" (LeetCode slots, system design review, company research) and "ESL Student Week" (English homework, vocab review, reading time). Defaults make it targeted, not generic.
#61 · Productivity 3 → 4

Pomodoro Focus Timer

FAANG 20yo13yo English

SVG ring timer, task tracking, notifications, stats. Well-executed but hundreds of free alternatives exist.

→ Add: "LeetCode Session" mode — 25-min problem attempt → 5-min AI pattern hint cycle. Also "ESL Reading Session" mode with vocabulary logging during breaks. Two persona modes = the only Pomodoro timer built for these use cases.
#63 · CS 3 → 4

CS Vocabulary Speed Typer

FAANG 20yoTTTT

Type 150 CS terms, WPM tracking, streaks, missed-term stats. Gamified but typing speed ≠ FAANG interview skill.

→ Add: "Define the Term" mode — user types the definition, not just the word. Tests understanding, not motor memory. Add a TTTT deck (8th-grade CS concepts in plain English). Two modes + two audiences = a 4.
100 AI Agents — Grades
#01 · Study ↑ updated

Ender's Game Flashcards

4 / 5
TTTT13yo English

40 flashcard pairs for Ender's Game — a standard 8th–9th grade English assignment — plus an AI generator that creates new cards from any chapter text. Serves TTTT (8th-grade lit study tool) and the 13yo persona (vocab + comprehension for an immigrant in American lit class). ~2–3 hrs.

Add multiple quiz modes and spaced repetition to turn it from a flashcard viewer into a full TTTT study platform.
#02 · Career

LinkedIn Internship Bot

4 / 5
FAANG 20yo

3-mode tool: search strategy, outreach writer, JD analyzer — Gemini-powered. Directly targets the FAANG internship hunt.

Add FAANG-specific referral sourcing and cold DM scripts to SWEs at target companies.
#03 · AI Dev ↑ updated

Prompt Engineering Coach

4 / 5
FAANG 20yo

Score bars, side-by-side prompt rewrites, and a techniques library. By 2029 prompt engineering is table stakes for FAANG AI/ML roles — the scoring + comparison view makes this active learning. ~2–3 hrs.

Add chain-of-thought quality evaluator and FAANG ML role-specific modes (classification, summarization, function calling).
#04 · AI Dev ↑ updated

Gemini API Playground

4 / 5
FAANG 20yoProduct launchEntrepreneur

Temperature + token controls, prompt history, starter templates. A hands-on sandbox for anyone building an AI-powered product or startup.

Add streaming output, system prompt editor, model comparison — turn it into a full product prototyping tool.
#05 · AI Dev ↑ updated

AI Agent Idea Generator

3 / 5
Entrepreneur

Brainstorm AI project ideas by category and difficulty. Directly useful for an entrepreneur figuring out what to build next.

Add implementation roadmap + tech stack + starter GitHub template per idea. That makes it a real product accelerator.
#06 · AI Dev

API Error Debugger

3 / 5
FAANG 20yo

Paste error → plain-English fix with code. Genuinely useful and shows debugging instinct.

Add error history log, multi-language stack traces, "what causes this class of error?" educational mode.
#07 · AI Dev

Code Review Bot

4 / 5
FAANG 20yo

Multi-category review, 10-pt score, fix-suggestion modal. Code quality is a core FAANG bar. ~3–4 hrs effort.

Add before/after diff view and FAANG-style rubric (time complexity, edge cases, clean interfaces).
#08 · AI Dev

Bug Explainer

2 / 5

Overlaps heavily with #06 and #07. Minimal distinct value for either persona.

Merge into Code Review Bot as a "Debug" tab, or add a step-through trace simulator to differentiate.
#09 · AI Dev

Git Commit Writer

2 / 5

~1 hr effort. Too narrow for FAANG signal, irrelevant to the English learner persona.

Expand to a Dev Workflow Helper: PR descriptions, changelog generator, branch naming strategy.
#10 · AI Dev ↑ updated

README Generator

4 / 5
FAANG 20yoProduct launchEntrepreneur

Professional GitHub README with badges + live preview. Every shipped product or open-source project needs this — a must for product launch and startup credibility.

Add a portfolio review mode — paste 3 repos, get a critique + suggestions for what to build next.
#11 · AI Dev

Code Comment Generator

2 / 5

~1–2 hrs. Overlaps with #07 and #08. No distinct value for either persona.

Add docstring format options (Google, NumPy, JSDoc) and a "explain for PR review" mode.
#12 · Study & CS

Algorithm Explainer

4 / 5
FAANG 20yo

Analogies, visual trace, Big O, quiz. Algorithms are 80% of LC-style FAANG interviews. ~3–4 hrs.

Add animated step-through, complexity comparison table, LeetCode links by pattern.
#13 · Study & CS ↑ updated

CS Concept Simplifier

4 / 5
TTTTFAANG 20yo

Plain English + analogies + code demos for CS concepts. Directly serves TTTT — 8th–9th grade intro CS covers these exact fundamentals and needs jargon-free explanations. Also solidifies FAANG depth. ~2–3 hrs.

Add "how does this show up in a FAANG interview?" per concept and a prerequisite map.
#14 · Study & CS ↑ updated

Quiz Generator from Notes

4 / 5
TTTT13yo English

MCQ, true/false, and short-answer quizzes from pasted notes — 3 distinct quiz types. Serves 13yo (English class notes) and TTTT (8th–9th grade studying). ~2–3 hrs.

Add spaced repetition, Anki export, pre-loaded FAANG and ESL vocab decks to make subject value explicit.
#15 · Study & CS ↑ updated

Study Plan Maker

3 / 5
TTTT

Exam date → color-coded day-by-day study calendar. Directly serves 8th–9th graders (TTTT) planning for tests. Generic but functional. ~1–2 hrs.

Build a FAANG prep mode: target company + interview date → week-by-week LeetCode + system design schedule. That's a 5.
#16 · Study & CS ↑ updated

Homework Problem Solver

4 / 5
TTTT13yo English

Step-by-step walkthroughs that teach thinking, not just give answers. Serves TTTT (8th–9th grade homework) and 13yo navigating US school in a second language. ~2–3 hrs.

Add bilingual EN/VI explanation mode — turns it into a genuine bilingual homework companion.
#17 · Study & CS ↑ updated

Research Topic Finder

4 / 5
TTTT13yo English

6 topics each with thesis, supporting arguments, and full structured outline. Serves TTTT (research papers = core 8th–9th grade assignment) and 13yo (essay structure in a second language). ~2–3 hrs.

Add English writing coach layer — vocabulary upgrades and transition phrases for ESL writers — to turn it into a full essay prep companion.
#18 · Study & CS

Active Recall Coach

3 / 5
Both personas

Answer from memory, self-rate, drill weak spots — best-evidenced study technique. Works for both personas.

Add pre-loaded FAANG interview decks and ESL vocabulary decks with a weak-spot heatmap.
#19 · Study & CS ↑ updated

Exam Anxiety Coach

3 / 5
13yo English

Breathing, thought reframing, pep talk. High relevance for a 13yo immigrant facing unfamiliar US exams under language pressure.

Add "interview nerves" mode for FAANG; add bilingual EN/VI calming scripts.
#20 · Study & CS

Tech Interview Prep Bot

5 / 5 ⭐
FAANG 20yo

Full mock: 5 questions, STAR/coding/system design/behavioral modes, per-answer AI feedback, timer, performance report. ~5–6 hrs effort.

Add company-specific question banks (Amazon LPs, Google Googliness), code execution sandbox for DSA.
#21 · Career

Cover Letter Generator

3 / 5
FAANG 20yo

JD keyword matching, human-sounding output. Necessary for every FAANG application but the concept is saturated.

Add ATS score estimator and FAANG-specific templates highlighting CS projects and impact metrics.
#22 · Career

Mock Interview Coach

4 / 5
FAANG 20yo

Real chat-format HR interview with scoring + coaching. Behavioral interviews are ~50% of FAANG loops. ~3–4 hrs.

Add Amazon LP mode, Google Googliness mode, and performance history tracking across sessions.
#23 · Career

Resume Bullet Rewriter

3 / 5
FAANG 20yo

Weak → strong, metric-driven, ATS-friendly bullets. Quick wins before FAANG applications.

Add FAANG framing (impact + scope + tech), before/after comparison with bullet strength score.
#24 · Career

Cold Email to Recruiter

3 / 5
FAANG 20yo

Under-150-word personalized recruiter emails. Referrals are the #1 way CS students break into FAANG.

Add follow-up sequence, LinkedIn DM template, and referral request script targeting SWEs.
#25 · Career

Internship JD Analyzer

4 / 5
FAANG 20yo

Match score, skill gaps, keyword list, "should I apply?" verdict, JD comparison mode. High ROI on FAANG applications.

Add skill gap → learning plan and timeline-to-qualification estimator.
#26 · Mom's English ↑ updated

Daily Life English Learner

4 / 5
13yo EnglishMom's English

Bilingual EN/VI for grocery, doctor, bank. Directly serves both the 13yo girl and her mom navigating daily American life. ~3–4 hrs.

Add school situations (talking to teachers, navigating a US classroom) and voice practice mode.
#27 · Mom's English ↑ updated

Basic Conversation Practice

4 / 5
13yo EnglishMom's English

Voice-enabled bilingual AI chat with real-time hints and corrections. Voice + Vietnamese support = exactly what both the daughter and mom need to practice real English conversation.

Add school conversation scenarios (asking for help, group projects, talking to a counselor). Add vocabulary progress tracker.
#28 · AI Dev ↑ updated

AI Chatbot Builder Guide

4 / 5
FAANG 20yoProduct launchEntrepreneur

8-step interactive tutorial to build and deploy a Gemini chatbot. An entrepreneur can follow this to ship their first AI-powered product — tangible end result.

Add cloud deployment (GCP Cloud Run, Vercel) + GitHub Actions CI/CD. That's a fully launchable product pipeline.
#29 · AI Dev

JSON Formatter & Explainer

3 / 5
FAANG 20yo

Format, validate, tree view, plain-English explanations. Genuinely useful dev tool with real polish.

Add JSON Schema generator, API response debugger, GraphQL query builder — a real developer toolkit.
#30 · AI Dev ↑ updated

CSS Style Generator

4 / 5
FAANG 20yoProduct launchEntrepreneur

Component picker, vibe selector, live preview, Tailwind + CSS-in-JS output, variations, export. ~4–5 hrs. For a founder launching a web app, this cuts UI time dramatically.

Add React/Vue component code output, WCAG accessibility checker, design-token JSON export for a complete product UI toolkit.
#31 · Games & Fun new

Two Truths & a Lie

3 / 5
13yo English

AI party game sets by topic, difficulty, Party Mode (5 back-to-back), custom statement polishing, and stats tracking. ~3 hrs. For a 13yo immigrant, knowing and playing these games = social survival at an American high school.

Add a "Vocabulary Challenge" mode where truths/lie use target English vocab — turns it into an ESL game for the 13yo and mom personas.
#32 · Games & Fun new

Meme Caption Generator

3 / 5
13yo English

20 meme templates, vibe selector, live preview, PNG download, "Best Format Mode" where AI picks the right template. ~3–4 hrs. Memes are how American teens communicate — a 13yo who gets meme culture fits in faster.

Add a "Learn the meme" explainer mode with context on why each template is funny — turns it into cultural fluency education.
#33 · Games & Fun new

Daily Dare Generator

3 / 5
13yo EnglishEntrepreneur

Personalized daily challenges with vibe/comfort-zone/age filters, streak tracking, badge system, AI encouragement, and friend-sharing. For an immigrant teen, these social dares build the confidence to speak up in English.

Add a "School dares" category (ask a teacher a question, introduce yourself to someone new) — directly addresses the 13yo's social integration challenges.
#34 · Art & Creative new

Pixel Art Idea Generator

3 / 5
FAANG 20yoProduct launch

AI idea generator + full in-browser canvas editor (paint, eraser, fill, undo, PNG download) with skill levels, style filters, and time estimates. ~4–5 hrs. The Canvas API implementation shows real frontend depth.

Add a pixel art NFT minter or shareable gallery — that's a deployable product with a real user loop and portfolio signal.
#35 · Art & Creative new

Mandala Pattern Designer

4 / 5
FAANG 20yoProduct launchEntrepreneur

Real-time canvas mandala with symmetry/layers/complexity controls, 6 petal shapes, 5 color schemes, mood presets, animation mode, AI palette suggestions, SVG + PNG export, 8-design gallery. ~5–6 hrs. Product-quality tool with impressive algorithm depth.

Add user accounts + public gallery so people can share and remix designs — that's a launchable generative art product.
#36 · Vietnamese Family new

Recipe Remix Bot

4 / 5
Mom's English13yo English

Bilingual EN/VI recipe remixer with 8 remix types (healthier, budget, American pantry, fusion, kid-friendly…), Vietnamese recipe shortcuts (Phở, Bánh mì, Bún bò Huế), dietary filters, and print mode. The "American pantry substitutes" feature is exactly what a Vietnamese mom needs at a US grocery store.

Add a "teach me the English cooking vocabulary" mode — turns a recipe into an EN/VI cooking lesson for mom and daughter together.
#37 · Fun & Learning new

This Day in History Bot

4 / 5
13yo EnglishMom's English

Daily history with 9 category filters, Vietnam Connection mode, streak tracking, Time Machine (enter any year), and bookmark system. US History is a required high school subject — a 13yo immigrant who reads one story a day will be ahead of her class. The Vietnam mode ties her heritage to world history.

Add a comprehension quiz after each story ("what happened, why did it matter?") — that directly prepares her for US high school history tests.
#38 · Sis English new

American Slang Decoder

5 / 5 ⭐
13yo English

Bilingual EN/VI slang decoder with Slang of the Day, decode-a-word, decode-a-sentence, cringe-o-meter ratings, personal dictionary, quiz mode, and popular slang shortcuts. Teen slang is how American high schoolers communicate — a 13yo who doesn't understand it is invisible. This is social survival software.

Add a "safe vs. cringe" usage guide for each slang term — knowing WHEN to use slang is as important as knowing what it means.
#39 · Sis English new

Idiom of the Day

5 / 5 ⭐
13yo EnglishMom's English

Daily American idiom with literal vs real meaning, origin story, Vietnamese equivalent, usage guide, audio pronunciation, fill-in-blank practice, AI feedback on your own sentences, personal dictionary, streak, and quiz. Idioms are one of the hardest parts of English for non-native speakers — this tool handles them better than most commercial ESL apps.

Add a "used in a movie/show" clip example for each idiom — hearing it in real American media context cements it permanently.
#40 · Sis English new

Basketball English Vocab

4 / 5
13yo English

Bilingual EN/VI basketball vocabulary with flashcards, fill-in-the-blank quiz, word search game, and personal vocab book. Basketball is how American teens bond — sports vocab is social integration for a Vietnamese immigrant teen. ~3–4 hrs.

Add a "Game Day Phrases" mode (trash talk, cheering, coach instructions) and voice pronunciation — a courtside survival guide.
#41 · Study & CS new

Dynamic Programming Coach

5 / 5 ⭐
FAANG 20yo

Interactive animated DP table visualizer with 10 classic problems, step-by-step animations, pattern reference (1D DP, 2D DP, Knapsack), and quiz-based mastery tracking. DP is the #1 hardest FAANG interview topic. ~5–6 hrs.

Add a mock DP interview mode with timer + hint system mimicking a 45-min FAANG coding round, and link each problem to LeetCode.
#42 · Study & CS new

Recursion Visualizer

5 / 5 ⭐
FAANG 20yo

Animated call stack explorer with 8 algorithms (Fibonacci, Merge Sort, Binary Search, Tower of Hanoi, Tree Traversal), step-by-step playback, recursion tree visualization, return value chain, and full complexity analysis. ~5–6 hrs.

Add a "write the base case" interactive challenge where students fill in missing recursive logic — active coding, not just visualization.
#43 · Study & CS new

OS Concepts Simulator

4 / 5
FAANG 20yo

Interactive OS learning: CPU scheduling, memory allocation, page replacement, deadlock detection, disk scheduling with step-by-step visualizations. OS fundamentals tested in FAANG system design. ~4–5 hrs.

Add a mock interview mode bridging OS concepts to FAANG system design questions.
#44 · Sis English new

School Conversation Coach

5 / 5 ⭐
13yo English

AI scripts and turn-by-turn practice for school situations: making friends, asking teachers for help, group projects, handling conflict. Precisely what a 13yo Vietnamese immigrant needs. ~4–5 hrs.

Add voice recording for pronunciation practice and a universal "what to say when you don't understand" phrase pack.
#45 · Sis English new

American Pop Culture Explainer

4 / 5
13yo English

Ask about TikTok trends, memes, TV shows, slang — AI explains with analogies, examples, do's & don'ts, and a quiz. Cultural fluency for social integration. ~3–4 hrs.

Add a "trending this week" feed and "safe to reference at school" rating.
#46 · Sis English new

ESL Grammar Checker

4 / 5
13yo EnglishMom's English

Paste writing, get gentle AI corrections at beginner/intermediate/advanced levels. Highlights errors by type, rewrites text, tracks progress. ~3–4 hrs.

Add essay-specific mode with thesis checker and paragraph transition suggestions.
#47 · Sis English new

Book Report Buddy

4 / 5
13yo English

Enter any book → summaries, characters, themes, quotes, discussion questions, report outline, passage explainer. 8 popular books pre-loaded. ~3–4 hrs.

Add a guided "write my book report" mode that scaffolds paragraph by paragraph with ESL vocabulary suggestions.
#48 · Career new

FAANG Application Tracker

3 / 5
FAANG 20yo

Track applications with status stages, stats dashboard, CSV export. Useful but basic CRUD — many free alternatives exist. ~2–3 hrs.

Add AI insights: follow-up reminders, success rate analytics by company tier.
#49 · Career new

FAANG Comp Negotiator

4 / 5
FAANG 20yo

AI negotiation coach: offer analyzer, scripts, comparator, TC calculator, live coaching. Addresses the FAANG endgame — max compensation. ~4–5 hrs.

Add real salary benchmarks and company-specific counter-offer email generator.
#50 · Career new

LinkedIn Message Generator

3 / 5
FAANG 20yo

Connection requests, follow-ups, thank-you notes, referral asks — 3 variants per type. Useful but simple prompt wrapper. ~2–3 hrs.

Add message tracking, response rates, and a warm intro chain mapper.
#51 · Study & CS new

LeetCode Pattern Trainer

5 / 5 ⭐
FAANG 20yo

12 core patterns (Sliding Window, Two Pointers, BFS/DFS, DP) with code templates, hints, and practice problems. Pattern recognition is THE key to FAANG interviews. ~5–6 hrs.

Add spaced repetition and a "pattern identifier" mode — given a problem, name the pattern before seeing the solution.
#52 · Study & CS new

Binary Search Masterclass

4 / 5
FAANG 20yo

6 pattern variants, step-by-step visualizer, complexity cheat sheet, 20 practice problems. Deep dive on a commonly tested FAANG pattern. ~4–5 hrs.

Add "tricky edge cases" drill — off-by-one errors, rotated arrays, first/last occurrence.
#53 · Sis English new

US High School Survival Guide

5 / 5 ⭐
13yo English

GPA, AP classes, extracurriculars, college prep, social life, time management — quizzes and checklists per grade year. THE guide for a Vietnamese immigrant navigating US education. ~5–6 hrs.

Add bilingual EN/VI parent section and a "what to do this month" seasonal calendar.
#54 · Sis English new

English Essay Writing Coach

4 / 5
13yo English

8 essay types, step-by-step structure, transitions, outline generator, 30 prompts tracked by difficulty. Where ESL students struggle most. ~4–5 hrs.

Add vocabulary upgrade suggestions: "instead of 'good', try 'compelling/effective/remarkable'."
#55 · ESL new

Reading Comprehension Trainer

4 / 5
13yo EnglishMom's English

12 graded passages (A1–C1), 5 questions each, vocabulary flashcards, progress tracking across 4 CEFR levels. ~3–4 hrs.

Add passages from US school textbooks so comprehension practice doubles as homework prep.
#56 · Vocabulary new

Vocabulary Builder — US High School

4 / 5
13yo English

200 words across 8 categories (SAT, Literary, Science, History), flip flashcards, 4 quiz modes, per-category mastery. ~3–4 hrs.

Add Vietnamese translations and a "words I heard today at school" custom list builder.
#57 · Pronunciation new

Pronunciation & Accent Trainer

3 / 5
13yo EnglishMom's English

IPA phoneme guide, 40 tongue twisters, 100 commonly mispronounced words, 20-question quiz. Good content but no actual audio — text-only limits value. ~3 hrs.

Add Web Speech API voice recording + playback for hear-yourself-vs-reference pronunciation.
#58 · Social Skills new

US Teen Social Survival Guide

4 / 5
13yo English

Friendships, dating, drama, peer pressure, cliques — practical guides, 20 interactive scenarios, 30 confidence challenges. Social navigation for immigrant teens. ~4–5 hrs.

Add bilingual "explain this to my parents" scripts for the cultural gap between American teen life and Vietnamese family expectations.
#59 · Language ↑ updated

American Idioms & Slang

4 / 5
13yo EnglishMom's English

120 idioms across 8 categories (casual, business, sports, food, school, etc.) with literal/real meanings, learned marking, and 20-question quiz rounds. The category breadth sets it apart from #38 (teen slang) and #39 (one idiom/day) — a 13yo and her mom need idioms across ALL life contexts. ~3 hrs.

Add bilingual EN/VI translations per idiom — single change turns it into a true bilingual guide for both personas.
#60 · Productivity new

Daily Planner & Task Manager

3 / 5

4-tab planner: today's tasks, weekly grid, goals with sliders, streaks. Well-built but generic — not persona-specific. ~3 hrs.

Add "FAANG prep daily routine" or "ESL student homework planner" persona templates.
#61 · Productivity new

Pomodoro Focus Timer

3 / 5

SVG ring, task tracking, customizable lengths, notifications, daily/weekly stats. Well-executed but saturated category. ~3 hrs.

Add "LeetCode session" mode (25-min problem + 5-min review) or "ESL reading session" with vocab logging.
#62 · Productivity new

Brain Dump / Quick Notes

3 / 5

Auto-save textarea, #tag system, searchable cards, pin, archive with restore. Clean UX but generic notes app. ~3 hrs.

Add "daily English journal" mode with word count goals and vocabulary detection.
#63 · CS new

CS Vocabulary Speed Typer

3 / 5
FAANG 20yo

Type 150 CS terms with WPM, accuracy, streaks, 60s rounds, leaderboard. Gamified but typing speed isn't a FAANG skill. ~3 hrs.

Add "define the term" mode testing understanding, not just motor memory.
#64 · CS new

System Design Interview Simulator

5 / 5 ⭐
FAANG 20yo

20 system design problems, 5-step framework, hints, component checklists, sample solutions, 30 concepts with tradeoffs. THE other half of FAANG interviews. ~5–6 hrs.

Add whiteboard/diagram mode for drawing architecture with AI feedback.
#65 · Star Wars new

Star Wars Builder

2 / 5

Character creator, lore browser, trivia quiz. Fun fan project but no persona alignment — doesn't help with FAANG, English, products, or entrepreneurship. ~2–3 hrs.

Reframe as "Build Your Own Fan Wiki" teaching web dev — deploy to GitHub Pages as a portfolio piece.
#66 · Dev Tools new

GitHub Portfolio Auditor

4 / 5
FAANG 20yo

30-point checklist, A/B/C/D grade, 40 tips, README templates, progress tracking. GitHub is what FAANG recruiters scan first. ~4–5 hrs.

Add automated repo analysis — scan actual repos for code quality signals and commit patterns.
#67 · Career ↑ updated

Interview Confidence Coach

4 / 5
FAANG 20yo

40 STAR behavioral questions across 4 competency categories with hints, confidence slider, breathing exercises, body language tips, and progress dashboard. The 40-question STAR bank is substantive FAANG behavioral prep. ~3–4 hrs.

Add company-specific behavioral tracks (Amazon LPs, Google Googliness, Meta product sense) to make it a must-use FAANG prep tool.
#68 · CS new

Coding Quiz Battle

4 / 5
FAANG 20yo

100 questions across 10 categories, 20s timer, streak bonuses, explanations, leaderboard, accuracy stats. Gamified FAANG prep. ~4–5 hrs.

Add "weak topic drill" mode auto-generating rounds from lowest-accuracy categories.
#69 · CS new

Algorithm Visualizer

5 / 5 ⭐
FAANG 20yo

12 algorithms animated with color-coded bars, step-by-step mode, stats, complexity cards, 10 challenges. Makes algorithms click visually. ~5–6 hrs.

Add "predict the next step" interactive mode — active learning vs. passive watching.
#70 · Career new

Tech Career Roadmap Planner

4 / 5
FAANG 20yo

8 career tracks, beginner-to-senior roadmaps, skill checklists, goal tracker, streaks. Strategic planning for the FAANG path. ~4–5 hrs.

Add "gap analysis" — input current skills → personalized plan to reach FAANG readiness by 2029.
#71 · Marketing ↑ updated

Landing Page Copywriter

4 / 5
Product launchEntrepreneur

15 pro copywriting frameworks, 20-headline swipe file across 5 niches, 3 headline variations, and complete page copy. Exactly what's needed before shipping a product — professional copy without a copywriter. ~3 hrs.

Add a deployable HTML landing page generator — copy + code in one tool would make it a 5.
#72 · Startup new

MVP Scope Definer

4 / 5
EntrepreneurProduct launch

5 scope questions → Lean/Standard/Overscoped verdict, MoSCoW board, MVP canvas, markdown export. Helps scope and ship. ~3–4 hrs.

Add tech stack recommender and time-to-build estimate breaking features into dev hours.
#73 · Startup new

Pitch Deck Studio

4 / 5
Entrepreneur

10-slide wizard (Problem, Solution, Market, Traction, Ask), preview, copy as markdown, pro tips. Essential for entrepreneurship. ~3–4 hrs.

Add investor-specific customization (seed vs. Series A) and "practice your pitch" timer with AI feedback.
#74 · Mobile new

App Store Optimization Suite

4 / 5
Product launch

ASO scoring, keyword ranking, Apple keyword string builder, iOS/Play preview, 25-point launch checklist. Directly helps ship an iOS app. ~3–4 hrs.

Add competitor ASO analysis and screenshot mockup generator.
#75 · Productivity new

Agile PM Toolkit

4 / 5
Product launchFAANG 20yo

Kanban board, sprint planner with burndown, retrospective board, velocity tracker. Professional PM showing FAANG-level maturity. ~5+ hrs.

Add team collaboration and AI sprint health summaries flagging risks.
#76 · Analytics new

A/B Test Designer

4 / 5
FAANG 20yoProduct launch

Hypothesis builder, sample size calculator, p-value significance check, per-variant result logger, winner declaration — all saved locally. Experimental design is core to FAANG product/data roles. ~4–6 hrs.

Add Bayesian A/B mode alongside frequentist p-value, multi-variate (A/B/C) support, CSV export.
#77 · Marketing ↑ updated

SEO Content Optimizer

4 / 5
Product launchEntrepreneur

8 analysis modes — keyword density, readability, passive voice, internal links, meta builder with live counters, keyword intent classifier, heading validator, and 30-item pre-publish checklist. Real complexity for product and entrepreneur personas who need organic search traction. ~3–4 hrs.

Add competitor URL comparison and a content brief generator from a target keyword to turn it into a full workflow tool.
#78 · Branding new

Brand Identity Builder

4 / 5
Product launchEntrepreneur

12 brand archetypes with auto-filled tone, voice, and brand personality. Real strategic framework used by branding pros — exactly what an entrepreneur needs before launch. ~2–3 hrs.

Add a brand name generator and social media bio/tagline builder to complete the brand kit.
#79 · Product new

Product Launch War Room

4 / 5
Product launch

30-item readiness checklist across pre-launch, launch day, and post-launch phases plus a day-of timeline. Exactly the structured guide a solo founder needs to not miss critical steps. ~2–3 hrs.

Add an automated email sequence builder for launch day to make it a full launch ops center.
#80 · Product new

Business Model Canvas

4 / 5
Entrepreneur

Interactive 9-block BMC with 3 worked examples. Foundational entrepreneurship tool — the BMC is the starting point for every startup. ~2–3 hrs.

Add Lean Canvas variant + PDF/image export for pitch decks.
#81 · Product new

Competitive Analysis Tool

5 / 5
Product launchEntrepreneur

Three distinct frameworks in one: feature matrix heatmaps, AI-assisted SWOT boards, and a positioning map. Bundling three professional research tools is genuine engineering effort. ~4–5 hrs.

Add competitor URL scraper to auto-populate the feature matrix — removes the bottleneck of manual data entry.
#82 · Product new

Email Marketing Suite

4 / 5
Product launchEntrepreneur

Subject line scorer, spam detector, and 15 campaign templates. Three tools in one suite — subject line testing alone prevents common launch mistakes. ~2–3 hrs.

Add email sequence builder (welcome, onboarding, re-engagement) and open-rate prediction.
#83 · Fitness new

CS Student Fitness OS

3 / 5
FAANG 20yo

5 coder-specific splits with a desk break timer interrupting Pomodoro sessions with movement prompts. Coder framing shows empathy for the FAANG lifestyle. ~2–3 hrs.

Integrate desk break timer with a focus session tracker for a unified health + productivity dashboard.
#84 · Fitness new

Coder's HIIT Timer

3 / 5
FAANG 20yo

Pomodoro-HIIT hybrid: code 25 min, then 5 min of desk-safe HIIT from 10 pre-built routines. Creative concept solving a real problem. ~1–2 hrs.

Add RSI prevention "stretch break" mode (wrist, neck, back) — real occupational hazard for CS students.
#85 · Fitness new

PR & Strength Tracker

3 / 5

Workout log with auto-PR detection across 40 exercises, trend charts, and personal records. 40 exercises show content investment. ~2–3 hrs.

Add beginner strength goal presets for CS students — gives the FAANG persona a specific target.
#86 · Wellness new

Period & Cycle Tracker

3 / 5
Mom's English

Cycle prediction, symptom log, and doctor visit scripts in English. The doctor visit scripts serve the Mom persona navigating US healthcare with limited English. ~2–3 hrs.

Translate doctor visit scripts to Vietnamese — bilingual healthcare nav tool earns a 4.
#87 · Wellness new

Skincare Routine Tracker

2 / 5

AM/PM routine builder with ingredient decoder. Niche wellness tool — minimal connection to any grading criteria. ~1 hr.

Add EWG ingredient safety scores and a "routine on a budget" mode for practical utility.
#88 · Lifestyle new

Glow-Up Tracker & Vision Board

2 / 5

Vision boards, milestone cards, mood journaling. Creative and personal but no strong connection to grading criteria. ~1 hr.

Focus on career milestones ("FAANG offer by 2029" template) — reframing around the FAANG path earns a 4.
#89 · Health new

Vietnamese-American Meal & Macro Tracker

4 / 5
Mom's English

80 dishes (40 Vietnamese, 40 American) with full macro data, meal logging, and nutritional tracking. Cultural content investment is substantial — serves the Vietnamese-American family persona. ~3–4 hrs.

Add bilingual dish names and prep notes in Vietnamese — genuine daily-use companion for the Mom persona.
#90 · Health new

Body Composition Tracker

3 / 5

Cut/Bulk/Maintain modes, trend charts, and TDEE calculator. Functional with multiple modes but no direct persona connection. ~2–3 hrs.

Connect to the Vietnamese-American Meal Tracker (#89) for an integrated nutrition + body comp system.
#91 · Health new

Coder's Workout Split Planner

3 / 5
FAANG 20yo

6 split templates with 50 exercises across strength, cardio, and recovery. Coder-specific framing + 50 exercises shows effort. ~2–3 hrs.

Add RSI injury prevention module (wrist, neck, back) — real occupational hazard for CS students.
#92 · Dev Tools new

React Component Playground

4 / 5
FAANG 20yo

Live JSX editor, 10 pre-built components, 5 React patterns (hooks, context, reducers), and hooks reference. React is a core FAANG frontend skill — hands-on beyond reading docs. ~3–4 hrs.

Add "build this component" challenge mode with acceptance tests — simulates FAANG frontend interview conditions.
#93 · AI/ML new

Machine Learning Visualizer

5 / 5
FAANG 20yo

6 interactive ML algorithm visualizations — KNN, K-Means, neural nets — with live data point manipulation and decision boundary updates. As ML becomes the dominant FAANG track by 2029, this is invaluable intuition-building. ~5+ hrs.

Add gradient descent visualization and hyperparameter experimentation mode.
#94 · Security new

Cybersecurity Basics Trainer

4 / 5
FAANG 20yo

Interactive Caesar cipher lab, SQL injection demos (sandboxed), and OWASP Top 10 coverage. Security fundamentals increasingly tested in FAANG backend interviews — shows engineering maturity beyond bootcamp. ~3–4 hrs.

Add a CTF challenge mode — timed security puzzles under interview conditions.
#95 · Dev Tools new

Cloud Architecture Designer

5 / 5
FAANG 20yoProduct launch

Drag-and-drop multi-cloud architecture builder (AWS, GCP, Azure) with live cost estimation per design. System design + cost awareness = core FAANG interview skill AND real product launch utility. Two personas at 5/5 depth. ~5+ hrs.

Add architecture review mode: paste existing design → get senior-engineer critique with cost optimizations.
#96 · Finance new

Personal Finance for CS Students

4 / 5
FAANG 20yo

TC calculator (base + bonus + equity), budget analyzer, and financial roadmap for new grads. FAANG offer equity and vesting schedules are confusing — this arms the 20yo CS student with the financial literacy they need. ~2–3 hrs.

Add company-specific TC benchmarks (Meta L3 vs. Google L3 vs. Amazon SDE1) and a stock vesting simulator.
#97 · Career new

Build in Public Playbook

4 / 5
Entrepreneur

Platform matcher, 50 content templates across stages (idea → shipped → traction), and streak tracker. 50 templates is real content investment — serves the entrepreneur building an audience around their product. ~3–4 hrs.

Add daily prompt Telegram bot integration — connects to the Personal Bot category and adds real accountability.
#98 · CS Tools new

Graph Algorithms Visualizer

5 / 5
FAANG 20yo

9 graph algorithms animated — BFS, DFS, Dijkstra, Bellman-Ford, Floyd-Warshall, Prim's, Kruskal's, Topological Sort, A* — with 15 interview challenges. Completes the algorithm trifecta with #41 (DP) and #42 (Recursion). Top FAANG interview topic. ~5+ hrs.

Add "whiteboard mode" — draw a graph, solve step-by-step before the animation reveals the answer.
#99 · AI/ML new

LLM & Generative AI Roadmap

4 / 5
FAANG 20yoEntrepreneur

6-stage structured roadmap (foundations → prompting → fine-tuning → deployment → production → research) with 20 concept explainers. As GenAI becomes the dominant FAANG hiring track by 2029, this roadmap directly guides the career path. ~3–4 hrs.

Add interactive "build your first LLM app" tutorial using Gemini API — closes the theory-practice gap.
#100 · Career new

Behavioral Interview STAR Bank

5 / 5
FAANG 20yo

Personal STAR story bank tagged by competency, mapped to Amazon's 16 Leadership Principles. The LP mapper is the most targeted FAANG behavioral prep tool in the portfolio — pre-written LP-mapped stories are the difference between an offer and walking out empty-handed. ~3–4 hrs.

Add story strength scoring (specificity, metrics, impact) and a mock behavioral round mode.
#101 · Dev / Interview new

FAANG Mock Coding Round

5 / 5
FAANG 20yo

20 problems (5E/10M/5H) with 3 progressive hints each, 45-min SVG ring timer, Python/JS/Java editor, self-rating, model solutions with complexity, and streak history. The closest thing to a real FAANG first-round. ~5+ hrs.

Add real sandboxed code execution (Judge0 API) against test cases.
#102 · School / Family new

Vietnamese Teen School Navigator

5 / 5
13yo EnglishTTTT

8-tab American school guide: Registration, Classroom, Counselor/IEP, Grades + GPA calculator, AP & Honors, Clubs, College Prep Timeline, Talking to Parents. Every tab has EN/VI flip cards, scenario walkthroughs, 50-term glossary, and progress checklist. ~5+ hrs.

Add bilingual "how to talk to your parents about school" conversation guide.
#103 · Dev Tools new

Full-Stack Project Scaffold Generator

5 / 5
FAANG 20yoProduct launchEntrepreneur

6 tech-stack presets (Next.js, T3, Django, NestJS, SvelteKit), toggle auth/AI/Docker/CI, 10 optional features → full file tree + package.json + .env + README + 5 git commits + 30-day build plan. ~4–5 hrs.

Add one-click deploy to Vercel/Railway integration.
#104 · Family / Language new

Mom's Everyday English Survival Kit

5 / 5
Mom's English

10 real-life tabs (Grocery, Doctor, Bank, DMV, Workplace, Phone Calls, Landlord, School, Emergency, Small Talk) with EN/VI flip cards, full conversation scripts, text-to-speech audio for every phrase, and 5-question quizzes. Personal phrasebook. ~5+ hrs.

Add AI "practice mode" — real dialogue with an AI playing the other person.
#105 · CS / Interview new

CS Interview Question Bank

4 / 5
FAANG 20yo

200 CS interview questions across DSA, System Design, and Behavioral with full answers, difficulty ratings (E/M/H), and topic filters. Covers all three FAANG interview dimensions. ~3–4 hrs.

Add spaced repetition scheduling and random quiz mode to make it active practice.
#106 · Language / Writing new

AI English Writing Coach

4 / 5
13yo EnglishMom's EnglishTTTT

Grammar checker, vocabulary upgrader, and writing style analyzer designed for ESL learners. Paste paragraphs → specific actionable suggestions with examples. Three distinct analysis modes for non-native English writers. ~2–3 hrs.

Add bilingual EN/VI feedback mode — explain corrections in Vietnamese so learners understand WHY.
#107 · Product / Startup new

Startup Idea Validator

4 / 5
Product launchEntrepreneur

Validate startup ideas end-to-end: market size estimation, competitor analysis, SWOT breakdown, and scored investor pitch summary. Four analytical frameworks to determine if an idea merits building. ~3–4 hrs.

Add comparable startup exits database — 3 companies that built something similar and what happened.
#108 · Study Tools new

Flashcard System with SRS

5 / 5
FAANG 20yo13yo EnglishTTTT

Spaced repetition flashcard system with pre-loaded FAANG DSA deck (80 cards) and ESL vocabulary deck (60 cards). Reviews scheduled by confidence rating. SRS is the scientifically optimal study method — pre-loaded decks make it immediately useful for both personas. ~3–4 hrs.

Add custom deck creator for user-made cards.
#109 · Family / Life new

Vietnamese-American Family Planner

4 / 5
Mom's English13yo English

Bilingual chores tracker, shared budget planner, and event calendar designed for Vietnamese-American households. Usable by both parents and kids regardless of English proficiency. ~3–4 hrs.

Add bilingual grocery list with Vietnamese-to-American ingredient substitution guide.
#110 · Career new

FAANG Behavioral Story Bank

4 / 5
FAANG 20yo

STAR story builder for 50 behavioral questions with company-specific customization (Google, Meta, Amazon, Apple, Netflix). Tags by Leadership Principle, exports to prep sheet. Breadth complement to #100's LP mapper depth. ~3–4 hrs.

Add live delivery timer mode — practice 2-min STAR story against the clock.
#111 · CS / Interview new

Data Structures Visualizer Suite

5 / 5
FAANG 20yo

8 animated data structures (Array, Linked List, Stack, Queue, BST, Min/Max Heap, Hash Table, Trie) with step-mode, speed control, Interview Notes, and Python code panels. Every operation animates node-by-node. Completes the visualization suite with #41, #42, #98. ~5+ hrs.

Add "trace this operation" challenge mode before showing the animation.
#112 · Test Prep new

SAT & ACT Full Prep Suite

4 / 5
TTTT13yo English

500 vocab words across 3 tiers, 4 study modes, 5 reading passages, 40 math problems, 3 ACT science passages, 45-minute timed practice test, and live progress dashboard. SAT prep that typically costs $100s, free. ~4–5 hrs.

Add adaptive difficulty — resurface missed questions based on error patterns.
#113 · Language new

Vietnamese ↔ English Bilingual Phrasebook

5 / 5
Mom's English13yo English

500+ phrases across 10 life categories with text-to-speech audio in BOTH English AND Vietnamese. 4 modes: browse, flashcard, quiz, starred. The audio in both languages makes it genuinely usable with zero literacy required. ~4–5 hrs.

Add conversation mode — AI plays both sides of a scripted dialogue with audio.
#114 · Career / PM new

FAANG Mock PM Interview Simulator

5 / 5
FAANG 20yo

76 questions across 6 PM interview types (product design, estimation, strategy, metrics, behavioral, technical) with company tracks, 45-min timer, 5-dimension scoring rubric, model answers, and session history. The PM equivalent of #20. ~4–5 hrs.

Add "live PM loop" mode simulating a full FAANG PM interview day.
#115 · Immigration / Life new

US Immigration & Life Guide EN/VI

5 / 5
Mom's English13yo English

8-section bilingual guide: visa types, green card process, naturalization with all 100 USCIS civics Q&As (quiz mode), government services, legal rights, emergency scripts EN/VI, and community resources. Life-changing for the Mom persona. ~5+ hrs.

Add green card application checklist with document tracker and deadline reminders.
#116 · CS / Interview new

Advanced FAANG Patterns Trainer

5 / 5
FAANG 20yo

20 coding patterns, 100 curated problems with animated diagrams, complexity tables, pattern-recognition drills, and SRS tracking. Goes deeper than #51 — 20 vs. 12 patterns, animated diagrams, SRS. If #51 teaches patterns, #116 makes recognition automatic. ~5+ hrs.

Add "pattern identification challenge" — identify the pattern from a problem statement before seeing code.
#117 · Study / Language new

Bilingual Math Tutor EN/VI

5 / 5
TTTT13yo English

6 math subjects (Algebra, Geometry, Trig, Calculus, Statistics, Discrete Math) with 170 problems and step-by-step solutions in BOTH English AND Vietnamese. Learn math vocabulary in English while understanding in Vietnamese. ~5+ hrs.

Add vocabulary bridge mode highlighting math terms EN/VI (denominator / mẫu số) as a bilingual glossary.
#118 · Career new

FAANG Networking & Referral Tracker

4 / 5
FAANG 20yo

Contact tracker, multi-step outreach sequence builder, follow-up reminders, referral request scripts, and visual network map showing connection hops to target companies. The network map is genuinely novel — no other FAANG prep tool has this. ~3–4 hrs.

Add referral success rate tracker — which contacts actually got you interviews.
#119 · Language / Family new

Vietnamese Teen English Survival Kit

5 / 5
13yo EnglishMom's English

10 life modules (School, Friends, Shopping, Doctor, Sports, Social Media, Dating, Work, Transit, Home) with 200+ bilingual EN/VI scenarios, TTS audio, fill-in-blank quizzes, cultural tips, and personal vocab notebook. Broadest 13yo English tool in the portfolio. ~5+ hrs.

Add cultural context mode explaining WHY Americans behave the way they do.
#120 · CS / Interview new

System Design Deep Dive Library

5 / 5
FAANG 20yo

30 real-world systems (URL Shortener, Twitter, Netflix, Uber, WhatsApp, Slack...) with animated architecture diagrams, component breakdowns, scalability trade-offs, capacity estimation walkthroughs, and structured FAANG interview guides. 30 systems vs. #64's 20 — the definitive system design library. ~5+ hrs.

Add "design from scratch" interactive mode — draw components before seeing the reference solution.
Non-Numbered Projects

TTTT · AI x Platform · Personal Bot — included in the running average.

TTTT · Geography new

US States & Capitals Explorer

4 / 5
TTTT13yo English

Flashcards, zoomable SVG map, and shape-recognition quiz covering all 50 states. Built for 8th graders — directly serves the 13yo who needs to pass US geography in school. ~3–4 hrs of solid map + quiz engine work.

Add bilingual EN/VI state names + a timed "capitals speed drill" to turn it into a dedicated ESL school prep tool.
AI x Platform · Music new

AI Playlist Roaster

4 / 5
AI x PlatformFAANG 20yoEntrepreneurship

Spotify OAuth 2.0 → listening history → Gemini roast in Gen-Z slang, deployed on Streamlit. Two live API integrations in one project (Spotify + Gemini) — portfolio gold showing real OAuth + prompt engineering + deployment. ~4–5 hrs.

Add PNG share-card export and a "serious insights" mode — doubles the audience and makes it both funny and useful.
Personal Bot · Productivity new

Reminder-Bot

4 / 5
Personal BotFAANG 20yoEntrepreneurship

Telegram bot with slash commands → Google Calendar OAuth 2.0 bidirectional sync. Demonstrates Telegram Bot API + Google Calendar API + persistent storage + OAuth + backend server. More engineering depth than most portfolio projects. ~4–5 hrs.

Add AI natural language parsing ("remind me every night at 9") + daily digest — turns a functional bot into an intelligent personal assistant.
Score Summary
#AgentCategoryScore
01Ender's Game Flashcards ↑Study4 ★★★★
02LinkedIn Internship BotCareer4 ★★★★
03Prompt Engineering Coach ↑AI Dev4 ★★★★
04Gemini API Playground ↑AI Dev4 ★★★★
05AI Agent Idea Generator ↑AI Dev3 ★★★
06API Error DebuggerAI Dev3 ★★★
07Code Review BotAI Dev4 ★★★★
08Bug Explainer ↑AI Dev4 ★★★★
09Dev Workflow Suite ↑AI Dev4 ★★★★
10README Generator ↑AI Dev4 ★★★★
11Code Documentation Suite ↑AI Dev4 ★★★★
12Algorithm ExplainerStudy & CS4 ★★★★
13CS Concept Deep Diver ↑Study & CS5 ★★★★★
14Quiz Generator from Notes ↑Study & CS4 ★★★★
15Study Plan Maker + FAANG Prep Mode ↑Study & CS5 ★★★★★
16Homework Problem Solver ↑Study & CS4 ★★★★
17Research Topic Finder ↑Study & CS4 ★★★★
18Active Recall CoachStudy & CS3 ★★★
19Exam Anxiety Coach ↑Study & CS3 ★★★
20Tech Interview Prep BotStudy & CS5 ★★★★★
21Cover Letter GeneratorCareer3 ★★★
22Mock Interview CoachCareer4 ★★★★
23Resume Bullet RewriterCareer3 ★★★
24Recruiter Outreach Suite ↑Career4 ★★★★
25Internship JD AnalyzerCareer4 ★★★★
26Daily Life English Learner ↑Mom's English4 ★★★★
27Basic Conversation Practice ↑Mom's English4 ★★★★
28AI Chatbot Builder Guide ↑AI Dev4 ★★★★
29JSON Formatter & ExplainerAI Dev3 ★★★
30CSS Style Generator ↑AI Dev4 ★★★★
31Two Truths & a Lie ✦newGames & Fun3 ★★★
32Meme Caption Generator ✦newGames & Fun3 ★★★
33Daily Dare Generator ✦newGames & Fun3 ★★★
34Pixel Art Idea Generator ✦newArt & Creative3 ★★★
35Mandala Pattern Designer ✦newArt & Creative4 ★★★★
36Recipe Remix Bot ✦newVietnamese Family4 ★★★★
37This Day in History Bot ✦newFun & Learning4 ★★★★
38American Slang Decoder ✦newSis English5 ★★★★★
39Idiom of the DaySis English5 ★★★★★
40Basketball English Vocab ✦newSis English4 ★★★★
41Dynamic Programming Coach ✦newStudy & CS5 ★★★★★
42Recursion Visualizer ✦newStudy & CS5 ★★★★★
43OS Concepts Simulator ✦newStudy & CS4 ★★★★
44School Conversation Coach ✦newSis English5 ★★★★★
45American Pop Culture Explainer ✦newSis English4 ★★★★
46ESL Grammar Checker ✦newSis English4 ★★★★
47Book Report Buddy ✦newSis English4 ★★★★
48FAANG Application Tracker ✦newCareer3 ★★★
49FAANG Comp Negotiator ✦newCareer4 ★★★★
50LinkedIn Message Generator ✦newCareer3 ★★��
51LeetCode Pattern Trainer ✦newStudy & CS5 ★★★★★
52Binary Search Masterclass ✦newStudy & CS4 ★★★★
53US High School Survival Guide ✦newSis English5 ★★★★★
54English Essay Writing Coach ✦newSis English4 ★★★★
55Reading Comprehension Trainer ✦newESL4 ★★★★
56Vocabulary Builder US High School ✦newVocabulary4 ★★★★
57Pronunciation & Accent Trainer ✦newPronunciation3 ★★★
58US Teen Social Survival Guide ✦newSocial Skills4 ★★★★
59American Idioms & Slang ↑Language4 ★★★★
60Daily Planner & Task Manager ✦newProductivity3 ★★★
61Pomodoro Focus Timer ✦newProductivity3 ★★★
62Brain Dump + English Journal Mode ↑Productivity4 ★★★★
63CS Vocabulary Speed Typer ✦newCS3 ★★★
64System Design Interview Simulator ✦newCS5 ★★★★���
65Fan Wiki Builder ↑Dev / Creative4 ★★★★
66GitHub Portfolio Auditor ✦newDev Tools4 ★★★★
67Interview Confidence Coach ↑Career4 ★★★★
68Coding Quiz Battle ✦newCS4 ★★★★
69Algorithm Visualizer ✦newCS5 ★★★★★
70Tech Career Roadmap Planner ✦newCareer4 ★★★★
71Landing Page Copywriter ↑Marketing4 ★★★★
72MVP Scope Definer ���newStartup4 ★★★★
73Pitch Deck Studio ✦newStartup4 ��★★★
74App Store Optimization Suite ✦newMobile4 ★��★★
75Agile PM Toolkit ✦newProductivity4 ★★★★
76A/B Test Designer ✦newAnalytics4 ★★★★
77SEO Content Optimizer ↑Marketing4 ★★★★
78Brand Identity Builder ✦newBranding4 ★★★★
79Product Launch War Room ✦newProduct4 ★★★★
80Business Model Canvas ✦newProduct4 ★★★★
81Competitive Analysis Tool ✦newProduct5 ★★★★★
82Email Marketing Suite ✦newProduct4 ★★★★
83CS Student Fitness OS ✦newFitness3 ★★★
84Coder's HIIT Timer ✦newFitness3 ★★★
85PR & Strength Tracker ✦newFitness3 ★★★
86Period & Cycle Tracker (Bilingual) ↑Wellness4 ★★★★
87Smart Skincare Suite ↑Wellness4 ★★★★
88Glow-Up Tracker & Vision Board ↑Lifestyle3 ★★★
89Vietnamese-American Meal & Macro Tracker ✦newHealth4 ★★★★
90Body Composition Tracker ✦newHealth3 ★★★
91Coder's Workout Split Planner ✦newHealth3 ★★★
92React Component Playground ✦newDev Tools4 ★★★★
93Machine Learning Visualizer ✦newAI/ML5 ★★★★★
94Cybersecurity Basics Trainer ✦newSecurity4 ★★★★
95Cloud Architecture Designer ✦newDev Tools5 ★★★★★
96Personal Finance for CS Students ✦newFinance4 ★★★★
97Build in Public Playbook ✦newCareer4 ★★★★
98Graph Algorithms Visualizer ✦newCS Tools5 ★★★★★
99LLM & Generative AI Roadmap ✦newAI/ML4 ★★★★
100Behavioral Interview STAR Bank ✦newCareer5 ★★★★★
101FAANG Mock Coding Round ✦newDev / Interview5 ★★★★★
102Vietnamese Teen School Navigator ✦newSchool / Family5 ★★★★★
103Full-Stack Project Scaffold Generator ✦newDev Tools5 ★★★★★
104Mom's Everyday English Survival Kit ✦newFamily / Language5 ★★★★★
105CS Interview Question Bank ✦newCS / Interview4 ★★★★
106AI English Writing Coach ✦newLanguage / Writing4 ★★★★
107Startup Idea Validator ✦newProduct / Startup4 ★★★★
108Flashcard System with SRS ✦newStudy Tools5 ★★★★★
109Vietnamese-American Family Planner ✦newFamily / Life4 ★★★★
110FAANG Behavioral Story Bank ✦newCareer4 ★★★★
111Data Structures Visualizer Suite ✦newCS / Interview5 ★★★★★
112SAT & ACT Full Prep Suite ✦newTest Prep4 ★★★★
113Vietnamese ↔ English Bilingual Phrasebook ✦newLanguage5 ★★★★★
114FAANG Mock PM Interview Simulator ✦newCareer / PM5 ★★★★★
115US Immigration & Life Guide EN/VI ✦newImmigration / Life5 ★★★★★
116Advanced FAANG Patterns Trainer ✦newCS / Interview5 ★★★★★
117Bilingual Math Tutor EN/VI ✦newStudy / Language5 ★★★★★
118FAANG Networking & Referral Tracker ✦newCareer4 ★★★★
119Vietnamese Teen English Survival Kit ✦newLanguage / Family5 ★★★★★
120System Design Deep Dive Library ✦newCS / Interview5 ★★★★★
Path to 4.0

📊 The Math

🎯 TARGET HIT. All 123 agents graded (120 numbered + 3 special). Final avg: 4.07 / 5.0 (500 pts). 30 perfect scores (5/5). The #101–#120 batch averaged 4.65 — the highest-quality batch yet. 12 existing agents also upgraded after Han Han implemented the recommendations.

✅ What earns a 4–5

❌ Avoid

💡 High-value builds for #43–#100

Full Scan History
📅 2026-05-13  ·  34 / 100 agents live  ·  Avg 3.26 / 5.0
📅 2026-05-14  ·  34 / 100 agents live  ·  Avg 3.26 / 5.0  ·  no new agents
📅 2026-05-15  ·  42 / 100 agents live  ·  Avg 3.28 / 5.0  ·  #32–#39 graded
📅 2026-05-16  ·  42 / 100 agents live  ·  Avg 3.38 / 5.0  ·  grades finalized #31–#39
📅 2026-05-16  ·  45 / 100 agents live  ·  Avg 3.48 / 5.0  ·  #40–#42 graded
📅 2026-05-17  ·  45 / 100 agents live  ·  Avg 3.48 / 5.0  ·  no new agents
📅 2026-05-18  ·  45 / 100 agents live  ·  Avg 3.48 / 5.0  ·  no new agents
📅 2026-05-24  ·  75 / 100 agents live  ·  Avg 3.61 / 5.0  ·  #43–#75 graded (33 new)
📅 2026-05-24  ·  77 / 100 agents live  ·  Avg 3.61 / 5.0  ·  #76–#77 graded (2 new)
📅 2026-05-25  ·  77 / 100 agents live  ·  Avg 3.71 / 5.0  ·  7 regrades (TTTT + platform criteria)
📅 2026-05-26  ·  100 / 100 agents live  ·  Avg 3.73 / 5.0  ·  #78–#100 graded (23 new) — ALL DONE
📅 2026-05-27  ·  100 / 100 agents live  ·  Avg 3.75 / 5.0  ·  Recheck: #01 → 4 · 5 stale entries synced
📅 2026-05-29  ·  100 / 100 agents live  ·  Avg 3.78 / 5.0  ·  Full recheck: #03 → 4, #13 → 4, #59 → 4
📅 2026-05-29  ·  100 / 100 agents live  ·  Avg 3.78 / 5.0  ·  Second recheck — all 103 grades confirmed, no changes
📅 2026-05-31  ·  100 / 100 agents live  ·  Avg 3.78 / 5.0  ·  Third recheck — all 103 grades confirmed, no changes
🎯 2026-05-31  ·  120 / 120 agents live  ·  Avg 4.07 / 5.0  ·  TARGET HIT — #101–#120 graded + 12 existing upgraded