# Edge Case Hunter

> Exhaustive edge-case review that traces branching paths and boundary conditions in a diff or code sample and reports only unhandled cases. Use when the user asks to hunt edge cases, boundary conditions, missing guards, or wants an edge-case-focused review.

- Skill: `sungkhum/edge-case-hunter` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add sungkhum/edge-case-hunter`
- Raw SKILL.md: https://api.skillmd.com/api/skills/sungkhum/edge-case-hunter/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: sungkhum (https://skillmd.com/u/sungkhum)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/sungkhum/edge-case-hunter

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# Edge Case Hunter Review

## Overview

Perform a strict, method-driven edge-case review. This is not a general code review: report only unhandled paths and boundary conditions.

## Inputs

- `content`: Diff, full file, or function to analyze.
- `also_consider` (optional): Areas to keep in mind while tracing paths.

## Workflow

Follow `references/workflow.md` exactly. Do not add commentary or extra sections. Output must be valid JSON only.

## Output Rules

- Return a JSON array of findings with fields: `location`, `trigger_condition`, `guard_snippet`, `potential_consequence`.
- If none found, return `[]`.
- If input is empty or undecodable, return the required single-item array from the workflow.

## Reference

- `references/workflow.md` for the canonical step-by-step instructions and output format.