Seller
HackStar
Skills that make everyday developer work faster and safer: Git, testing, APIs and security.
8 published skills · member since 2026-11
Skills
Development
Legacy code test harness: characterization tests for untested Python and JS code
Ranks risky functions in untested Python, JavaScript or TypeScript code, records real inputs and outputs, and generates golden master / snapshot tests for pytest, jest or vitest before a refactor.
Development
Incident postmortem kit: merged UTC timeline, TTD/TTR, status updates and notices (en/ja)
Merges logs, chat exports and deploy logs into one UTC timeline, computes TTD/TTR and the impact window, and drafts a blameless postmortem, status page updates and customer notices (en/ja).
Development
Web app security review for Python and Node (OWASP Top 10 2021)
Reviews Flask, Django, FastAPI, Express and Next.js code against the OWASP Top 10 (2021) and writes a findings report with severity, file:line evidence, exploit scenario and fix code.
Development
Port and process inspector for Windows, macOS and Linux (never kills)
Lists listening TCP and UDP ports with the owning PID and process name, and finds what holds a given port. It never stops anything; it only prints the command you could run.
Development
TODO / FIXME tracker with blame author, age and owner groups
Collects TODO, FIXME, HACK and XXX comments with file:line, git blame author and age, groups them by owner or age, and outputs Markdown or CSV with optional issue drafts.
Development
Pull request description writer from the branch diff (English / Japanese)
Reads base...HEAD and the commits, groups changed areas, flags migrations, config, dependency and public API risks, lists test changes, and drafts a PR description in English or Japanese.
Development
API smoke test runner with JSON test files and JUnit XML
Checks HTTP endpoints described in a JSON file (status, JSON path values, latency) and prints a pass/fail table plus JUnit XML. Secrets come from environment variables and are masked.
Development
Git bisect assistant: find the commit that broke it, safely
Runs git bisect run safely with your test command, logs every step, always restores the original branch, and reports the first bad commit with its diff stat.