idempotent-shell-scripts

Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/benthepsychologist-idempotent-shell-scripts

About

Use cases: devops

No reviews yet. Installed it? Reviews come from verified installers only. How reviews work

Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools

No tools found

Secrets

None asked for

Install scripts

None found

What's inside

Skill name

idempotent-shell-scripts

Description

Create re-runnable infrastructure shell scripts for gcloud and bq that safely handle existing resources and produce deterministic outcomes across repeated executions.

License

Apache-2.0

Compatibility

Requires bash with set -euo pipefail, authenticated gcloud CLI, and bq CLI in PATH.

Allowed tools

bash, gcloud, bq

Metadata

author: benthepsychologist · version: 1.0

Instructions

35 lines in SKILL.md · view on GitHub

# Idempotent Shell Scripts

Use this skill for bootstrap/provision scripts that must be safe to run many times.

## Script baseline

```bash
#!/usr/bin/env bash
set -euo pipefail

PROJECT_ID="${PROJECT_ID:?PROJECT_ID is required}"
DATASET="${DATASET:-analytics}"

if ! bq --project_id "$PROJECT_ID" show --dataset "$DATASET" >/dev/null 2>&1; then
  bq --project_id "$PROJECT_ID" mk --dataset "$DATASET"
fi
```

## Patterns to apply

- Check-before-create for all resources.
- Prefer update/apply operations over delete/recreate.
- Gate destructive operations behind explicit flags.
- Validate required env vars at script start.

## Verification

```bash
bash scripts/bootstrap.sh
bash scripts/bootstrap.sh
```

Second run must succeed without duplicating resources.

Signals

Stars

3

Forks

0

Open issues

1

Last commit (this folder)

Mar 20, 2026 (7 months ago)

Last release

Nov 10, 2025 (11 months ago)

From GitHub (fetched Oct 24, 2026).

Details

Version

1.0

License

Apache-2.0

Repository

github.com/benthepsychologist/specwright

First seen

Oct 24, 2026

Last checked

Oct 24, 2026

Source

GitHubgithub-graphql