Build in public với Codex, Claude Code và Gemini mà không cháy quota

TL;DR: Build in public voi AI coding khong phai la de AI tu do "boc tay ao". Day la bai toan san xuat noi dung va quan tri rui ro. Muon khong chay quota, ban phai thu nho task, bat AI plan truoc, review diff tren nhanh rieng, va biet luc nao dung.

Rat nhieu nguoi bi hut boi nhung video AI build app trong 20 phut. Van de la phan khan gia khong thay thuong la:

• prompt truoc do da duoc lam sach;
• task da duoc cat nho;
• repo da duoc chuan bi;
• va nhieu lan thu hong da xay ra truoc khi quay.

Neu ban build in public that, ban can workflow co the lap lai trong dieu kien binh thuong, khong can "may dep". Bài nay viet cho tinh huong do.

Nguyen tac 1: Dung mo mot buoi cong khai bang task mo ho

Sai lam lon nhat cua buoi livestream AI coding la mo dau bang yeu cau:

"Lam cho app nay ngon hon."

Day la cach nhanh nhat de:

• dot quota;
• tao diff lon;
• khien khan gia khong theo kip;
• va khi loi xay ra thi ban cung khong biet quay lai dau.

Thay vao do, moi buoi cong khai chi nen co mot output co the kiem. Vi du:

• sua mobile overflow o hero section;
• them validation cho form dang ky;
• doc va fix mot test dang do;
• viet mot route RSS nho;
• sua schema FAQ cho dung.

Neu mot task chua the viet thanh mot cau acceptance test, dung dua no len song.

Nguyen tac 2: Luon co "pre-flight checklist" truoc khi goi agent

Truoc khi dung Codex, Claude Code hay phe Google, toi khuyen giu 5 dong nay:

1. Muc tieu cuoi la gi?
2. Nhung file nao cho phep sua?
3. Nhung file nao cam sua?
4. Lenh nao chung minh da xong?
5. Neu agent di sai, minh rollback o dau?

Prompt mo dau nen giong:

Doc loi build va hai file lien quan.
Chua sua code.
Hay liet ke file du kien thay doi, nguyen nhan goc, patch nho nhat va cach test.
Khong them dependency, khong dong vao auth, khong sua workflow CI.

Chi mot thoi quen nay da giam rat nhieu kha nang "chay repo" va "chay quota".

Nguyen tac 3: Mot nhanh rieng cho moi episode

Build in public khong dong nghia moi thu phai lam tren main. Nguoc lai, cong khai cang can ro ranh gioi:

• mot branch cho mot buoi;
• mot commit cho mot y;
• mot diff de giai thich lai.

Neu AI tao ra patch sai, ban khong mat noi dung; ban chi bo branch va rut bai hoc. Khong co branch rieng, moi buoi cong khai la mot lan dat cuoc vao tri nho cua ban.

Workflow 45 phut khong chay quota

Toi de xuat mot khung rat don gian:

Phut 0-10: xac dinh va co dinh task

• mo issue hoac note 3 dong;
• chot output;
• chot file duoc sua;
• chot lenh test/build.

Phut 10-20: cho AI doc va plan

Yeu cau tool:

• doc repo / file lien quan;
• tom tat nguyen nhan;
• liet ke file se sua;
• noi rang co can task nho hon nua khong.

Neu danh sach file dai hon 3-4 file ma ban chua quen repo, thu nho task ngay.

Phut 20-35: cho AI sua trong pham vi hep

Chi luc nay moi cho phep thuc hien. Nhac lai:

• khong them dependency;
• khong sua file ngoai danh sach;
• khong chay lenh nguy hiem;
• neu gap blocker thi dung va bao.

Phut 35-45: doc diff, chay test, chup ket qua

Ban dang build in public, nen output khong chi la code. Output con la:

• diff ngan;
• build xanh hoac screenshot fix;
• mot cau giai thich "vi sao loi xay ra".

Day moi la noi dung dang xem.

Cach tiet kiem quota theo tung phe

Codex: tiet kiem bang cach giam do rong context va dung model nhe hon cho viec thuong

Trang Codex pricing va docs goi y mot vai diem rat thuc dung:

• prompt can cu the, bo context thua;
• AGENTS.md qua dai se lam no ton limit hon;
• them qua nhieu MCP server cung lam tang context;
• voi task thuong, co the doi sang model nhe hon de keo dai limit.

Neu ban build in public voi Codex, hay:

• dung session tap trung, khong vua chat linh tinh vua code;
• tach planning ra truoc, coding ra sau;
• dung lai sau moi chang de doc diff;
• chi mua them credits sau khi ban biet mot task kieu nao thuong ton bao nhieu.

Noi cach khac: credits khong phai la giay phep de prompt mo ho.

Claude Code: tiet kiem bang /clear, /compact va ky luat model

Tai lieu chinh thuc cua Claude Code noi rat ro 5 thoi quen giup usage di xa hon, trong do co 3 diem ban nen nho ngay:

• /clear giua hai task khac nhau
• /compact neu dang giua mot task dai
• Sonnet mac dinh, Opus chi dung khi that su can

Neu ban khong lam ba dieu nay, ban se co cam giac "chua lam gi nhieu ma da het limit". Thuc ra ban da de mot hoi thoai cu, 20 file da doc va 15 lan sua cu ngoi tren lung moi turn moi.

Voi build in public, Claude Code hop nhat khi ban:

• muon mo man hinh cho khan gia thay AI plan;
• can giai thich tai sao sua 2 file ma khong sua 8 file;
• muon bien buoi code thanh buoi hoc.

Phe Google: tiet kiem bang cach theo doi request/day va xac minh lai account path

Gemini CLI docs khuyen dung /stats model de xem usage va limits. Day la mot diem rat de thich voi nguoi build cong khai: ban co mot chi so de noi ro cho minh va cho khan gia.

Tuy nhien, voi phe Google, buoc truoc tien khong phai la /stats. Buoc truoc tien la:

Kiem tra lai minh dang o tier nao va san pham nao con phuc vu tier do.

Ly do la moc 18/06/2026. Neu ban bo qua moc nay, ban co the viet plan rat dep nhung vao buoi quay moi nhan ra account ca nhan cua minh da nam trong duong migration sang Antigravity CLI.

Sau khi xac minh xong, cach tiet kiem quota cua phe Google rat thang:

• mot task cong khai = mot task nho;
• tranh spam follow-up vo nghia;
• neu request/day la ngan sach, chia ngan sach theo episode;
• chi sang API pay-as-you-go khi ban da quen tay do burn rate.

Dung de buoi cong khai tro thanh buoi "AI dong kich"

Khan gia khong can xem 40 phut AI doc log. Ho can:

• van de gi?
• AI nghi gi?
• ban co chap nhan ke hoach do khong?
• diff sua vao dau?
• test nao xac nhan xong?

Vi vay, dung lai o cac moc nay:

1. sau khi AI doc va de xuat plan;
2. sau khi AI sua xong;
3. sau khi test/build xong.

Moi moc dung la mot lan ban chuyen tu "agent dang lam" sang "con nguoi dang kiem". Chinh phan nay tao ra gia tri build in public.

Khi nao nen nang goi?

Ban chua nen nang goi chi vi mot buoi bi hit limit. Nen nang goi khi 3 dieu nay xay ra cung luc:

1. ban da co workflow co lap lai;
2. ban biet task nao thuong xuyen bi dut giua chung;
3. ban co dau ra that: blog, video, khach hang, MVP, newsletter, tool.

Neu chua du 3 dieu tren, limit la mot feedback huu ich. No dang noi voi ban rang:

• task qua lon;
• prompt qua rong;
• ban dang giao qua nhieu cho agent;
• hoac ban dang dung sai model cho sai viec.

Checklist build in public cho moi buoi

• mot branch rieng;
• mot task co acceptance test;
• mot prompt mo dau chi de doc va plan;
• mot lan chap thuan thuc hien;
• mot lan doc diff;
• mot lenh test/build;
• mot screenshot hoac ket qua de cong bo;
• mot ghi chu "neu quay lai, toi se lam tiep gi".

Checklist nay nghe rat "thu cong", nhung chinh no bien AI coding tu mot tro vui thanh mot quy trinh san xuat noi dung va san pham.

Ket luan

Build in public voi AI coding khong phai la de chung minh AI thay the lap trinh vien. No la de chung minh ban co the:

• bien mot y tuong thanh task;
• dung AI de day nhanh phan co the kiem;
• giu quyen quyet dinh o nhung diem quan trong;
• va thuat lai qua trinh do cho nguoi khac hieu.

Neu phai chot gon:

• Codex hop cho session tap trung, nhung phai canh cua so 5 gio va credits.
• Claude Code hop de build cong khai va day tinh hoc tap, nhung phai ky luat voi session + weekly cap.
• Phe Google hop neu ban muon quota de dem de hieu, nhung dung bao gio bo qua thong tin migration sang Antigravity CLI.

Series nay den day khong phai de tim "nguoi thang", ma de giup ban chon duoc nhip lam viec it dot quota nhat va it dot repo nhat.