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JahacksV1/day-one-agent-kit

Understand a repository without changing architecture. Use when starting work in an unfamiliar repo, onboarding a client codebase, or creating a stack/profile baseline.

What is day-one-agent-kit?

day-one-agent-kit is a Claude Code agent skill that understand a repository without changing architecture. Use when starting work in an unfamiliar repo, onboarding a client codebase, or creating a stack/profile baseline.

Works with~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/JahacksV1/day-one-agent-kit/tree/HEAD/skills/intake-repo

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Documentation

Intake Repo

Use this workflow to quickly understand a repository before implementation.

Goal

Produce a short, evidence-based repository profile with risks and next steps.

Output

  • .ai/PROJECT_PROFILE.md using templates/PROJECT_PROFILE.md.

Rules

  • Do not edit product code.
  • Do not rewrite architecture.
  • Prefer observed code patterns over assumptions.
  • Keep profile concise and actionable.
  • "Not applicable" is a valid, expected answer for a Main Area — a static/portfolio site with no backend has no auth, database, or AI-logic lane to fill in. Mark it as Not Applicable rather than inventing content, guessing at a future need, or leaving it blank/ambiguous.

Steps

  1. Detect framework, language, package manager, and deployment target.
  2. Read package/lock/config files and major entry points.
  3. Identify available scripts: dev, typecheck, lint, test, build.
  4. Map frontend, backend, database, auth, AI, deployment areas.
  5. Identify environment variable usage patterns.
  6. Capture current architecture patterns used in the code.
  7. List obvious missing production basics and key risks.
  8. Generate or update .ai/PROJECT_PROFILE.md.

Minimum Evidence

Cite concrete files for each finding. Example categories:

  • script source (package.json, pyproject.toml, etc.)
  • deployment source (vercel.json, Docker, CI workflows)
  • env usage source (process.env, NEXT_PUBLIC_, etc.)
  • auth/data boundaries (middleware, route handlers, policy files)

Done Check

  • Profile includes detected stack, scripts, main areas, patterns, risks.
  • Output is short enough to be useful during normal coding tasks.

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