# deliver-edge-cases

> Documents edge cases, error states, boundary conditions, race conditions, and recovery paths for a feature - the system…

Documents edge cases, error states, boundary conditions, race conditions, and recovery paths for a feature - the systematic catalog of what can go wrong and the failure modes to design for. Use during specification to map the failure surface and ensure comprehensive coverage, or during QA planning to identify boundary and limit scenarios to test. Distinct from deliver-acceptance-criteria, which writes story-level Given/When/Then checks; this skill produces the whole-feature edge-case catalog.

- Type: Skill
- Made by: product-on-purpose
- Category: Project management
- Formats: Skills
- Version: 2.1.1
- Source: https://github.com/product-on-purpose/pm-skills/tree/HEAD/skills/deliver-edge-cases
- Page: https://pluginboard.ai/skills/deliver-edge-cases

## Works with

- ChatGPT
- Claude
- Gemini
- GitHub Copilot
- Cursor
- Claude Code
- Codex
- Antigravity
- Gemini CLI
- Replit
- OpenClaw
- OpenCode
- Hermes Agent

## Install

### ChatGPT

In ChatGPT: Download the deliver-edge-cases folder and zip it, then Plugins → Skills → Create → Upload from your computer. Business and Enterprise plans.

View the folder on GitHub: https://github.com/product-on-purpose/pm-skills/tree/HEAD/skills/deliver-edge-cases

### Claude

In Claude (web or desktop): Download the deliver-edge-cases folder and zip the folder itself, then upload it in Customize → Skills.

View the folder on GitHub: https://github.com/product-on-purpose/pm-skills/tree/HEAD/skills/deliver-edge-cases

### Gemini

In Gemini: Download the deliver-edge-cases folder, then at gemini.google.com click Customize → Skills → Create → Upload and pick the folder (or a .zip of it).

View the folder on GitHub: https://github.com/product-on-purpose/pm-skills/tree/HEAD/skills/deliver-edge-cases

### GitHub Copilot

Run in your terminal:

```shell
npx -y degit product-on-purpose/pm-skills/skills/deliver-edge-cases ~/.copilot/skills/deliver-edge-cases
```

View the folder on GitHub: https://github.com/product-on-purpose/pm-skills/tree/HEAD/skills/deliver-edge-cases

### Cursor

Run in your terminal:

```shell
npx -y degit product-on-purpose/pm-skills/skills/deliver-edge-cases ~/.cursor/skills/deliver-edge-cases
```

View the folder on GitHub: https://github.com/product-on-purpose/pm-skills/tree/HEAD/skills/deliver-edge-cases

### Claude Code

Run in your terminal:

```shell
npx -y degit product-on-purpose/pm-skills/skills/deliver-edge-cases ~/.claude/skills/deliver-edge-cases
```

View the folder on GitHub: https://github.com/product-on-purpose/pm-skills/tree/HEAD/skills/deliver-edge-cases

Or all of PM-Skills, in Claude Code:

```text
/plugin marketplace add product-on-purpose/pm-skills
/plugin install pm-skills@pm-skills-marketplace
```

### Codex

Run in your terminal:

```shell
npx -y degit product-on-purpose/pm-skills/skills/deliver-edge-cases ~/.agents/skills/deliver-edge-cases
```

View the folder on GitHub: https://github.com/product-on-purpose/pm-skills/tree/HEAD/skills/deliver-edge-cases

### Antigravity

In Antigravity: Copy the deliver-edge-cases folder into ~/.gemini/config/skills (Antigravity app and IDE) or ~/.gemini/antigravity-cli/skills (Antigravity CLI).

View the folder on GitHub: https://github.com/product-on-purpose/pm-skills/tree/HEAD/skills/deliver-edge-cases

### Gemini CLI

Run in your terminal:

```shell
npx -y degit product-on-purpose/pm-skills/skills/deliver-edge-cases ~/.gemini/skills/deliver-edge-cases
```

View the folder on GitHub: https://github.com/product-on-purpose/pm-skills/tree/HEAD/skills/deliver-edge-cases

### Replit

Run in your terminal:

```shell
npx -y degit product-on-purpose/pm-skills/skills/deliver-edge-cases .agents/skills/deliver-edge-cases
```

View the folder on GitHub: https://github.com/product-on-purpose/pm-skills/tree/HEAD/skills/deliver-edge-cases

### OpenClaw

Run in your terminal:

```shell
npx -y degit product-on-purpose/pm-skills/skills/deliver-edge-cases ~/.openclaw/skills/deliver-edge-cases
```

View the folder on GitHub: https://github.com/product-on-purpose/pm-skills/tree/HEAD/skills/deliver-edge-cases

### OpenCode

Run in your terminal:

```shell
npx -y degit product-on-purpose/pm-skills/skills/deliver-edge-cases ~/.config/opencode/skills/deliver-edge-cases
```

View the folder on GitHub: https://github.com/product-on-purpose/pm-skills/tree/HEAD/skills/deliver-edge-cases

### Hermes Agent

Run in your terminal:

```shell
npx -y degit product-on-purpose/pm-skills/skills/deliver-edge-cases ~/.hermes/skills/deliver-edge-cases
```

View the folder on GitHub: https://github.com/product-on-purpose/pm-skills/tree/HEAD/skills/deliver-edge-cases

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From Pluginboard (https://pluginboard.ai).