Edge Cases

GPTClaudeGemini··▲ 1,161 copies·updated 2026-07-14

edge-cases-3.prompt

# Lens: Edge Cases

> Reusable analysis lens. Generate edge cases the ACs almost certainly missed.

## Purpose
ACs describe the happy path. This lens enumerates the failure / boundary / adversarial cases that need explicit handling before code is written.

## Length budget
**≤35 lines** (this lens is allowed to be the longest — edges are the point). Only list categories that have real cases for this story. Omit empty categories. One line per edge case, no explanations.

## When to use
- Every story, every time. Edge cases are where bugs ship.
- Especially for user input, network calls, concurrent operations, mobile lifecycle events.

## Inputs expected
- Assembled story context.
- Stack-specific edge categories from discovered project context (e.g. offline-first, conflict resolution).

## Output template

when to use it

Community prompt sourced from the open-source GitHub repo shuchitajain/story-agent (MIT). A "Edge Cases" style prompt — adapt the placeholders and specifics to your task. Imported as-is and not independently retested here, so check the output before relying on it.