Read your repo, then practice judgment
codebase-coffee keeps you oriented in the code you ship. EraCode gives you short deliberate practice. Together they form one sustainable loop—not an argument about using less AI.
Use EraCode. Less ErrorCode.
Two reps, one habit
AI-era work rewards people who can ship quickly and still own what ships. That requires two different muscles: knowing your codebase well enough to evaluate changes, and rehearsing implementation and debugging judgment before production pressure arrives.
codebase-coffee handles the first muscle with a daily refresher on one concept in your repo—pattern, rationale, location, gotcha—in under 100 words. EraCode handles the second with daily and on-demand challenges across coding, quiz, terminal, and multi-part formats tuned to your stack.
Neither tool moralizes about AI. Both assume you will keep using agents and want habits that keep supervision skills warm.
Morning coffee, midday or evening practice
A practical loop looks like this: start the day with coffee in the repo you are touching (orientation), then spend ten focused minutes on an EraCode challenge (execution and feedback). On busy days, either rep alone still helps; together they compound.
Coffee answers "where does this live and why?" EraCode answers "can I still implement, debug, and explain under light pressure?" That pairing maps to real work: reading before you edit, then proving you can finish something small correctly.
If you use Claude Code, coffee may arrive as a morning offer. In Cursor or Codex, run `/codebase-coffee` yourself. EraCode practice starts from the [dashboard](/auth/signin?callbackUrl=/dashboard) or [daily challenges](/daily-challenges) whenever you have a window.
codebase-coffee on GitHub
codebase-coffee on GitHub is the open-source skill definition: curriculum scan, `.codebase-coffee.md` memory file, daily brief contract, teammate queue-jump, and optional deep walkthrough.
Install once per agent host, then use it in whatever repository you are building. The EraCode marketing hub at [/codebase-coffee](/codebase-coffee) summarizes the tool; [install](/codebase-coffee/install) has commands for Cursor, Claude Code, and Codex.
EraCode builds and maintains coffee as a companion literacy habit. The web product remains deliberate practice challenges—not an in-app coffee runner.
Where EraCode fits
EraCode focuses on sustainable sharpening: short reps you can keep on a busy calendar, stack-aware topics, and AI-assisted grading with honest timing where challenges are timed.
On paid tiers, GitHub-backed generation ties some practice to repositories you connect—same idioms and folders you see in PRs. Free tiers still support technology-scoped daily challenges for ongoing maintenance.
Explore [daily challenges](/features/daily-challenges), [why codebase literacy matters](/topics/why-codebase-literacy-matters), and [coding with AI without losing your edge](/topics/coding-without-losing-your-edge) for the broader thesis coffee supports.
Start where you are
Already living in your agent every day? Install coffee first and let the curriculum scan run once. Already practicing on EraCode? Add coffee so orientation keeps pace with how fast the repo changes.
Both are small commitments by design. The goal is a loop you can keep for months, not a heroic catch-up weekend.
Install coffee from GitHub. Start EraCode practice when you are ready—the button below opens sign-in with a return path to your dashboard.
Good to know
codebase-coffee is an open-source Agent Skill that runs in your coding agent; it is not a feature inside the EraCode app.
Morning auto-offer works in Claude Code today. In Cursor, Codex, and other Agent Skills hosts, you start coffee yourself (for example /codebase-coffee).
EraCode challenge scores are for practice feedback, not hiring or performance verdicts.