H5I

H5I is a DevOps skill for Claude Code, published by h5i-dev in h5i.

544 stars56 forkson h5i-dev/h5iAdded 2026/08/26+1% in starsRepository updated 2026/08/26

agentic-aiagentic-workflowai-codingai-coding-agentai-orchestrationai-safetyai-securityaudit-trailbrowser-securityclaude-codecodexebpfformal-verificationgood-first-issuemicrovmmulti-agentmulti-agent-systemp2psandboxworktree-manager

Install in seconds

Install H5I

Copy H5I into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/h5i-dev/h5i/tree/main/skills/h5i ~/.claude/skills/h5i

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/h5i-dev/h5i.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/h5i/SKILL.md in h5i-dev/h5i
Installs to: ~/.claude/skills/h5i
Collection: One of 2 skills cataloged from this repository
Category: DevOps — 798 skills

What H5I does

H5I creates disposable, confined development boxes for untrusted or AI-generated code, with receipts for commands and exports. Use it to review PRs, run tests and browsers in isolation, and coordinate work through policy-controlled forums.

H5I is cataloged under DevOps on DirSkills. H5I comes from a repository tagged agentic-ai, agentic-workflow, ai-coding, ai-coding-agent and ai-orchestration.

Documentation

README

Excerpt

Driving h5i

A box is a disposable development environment: a git worktree on its own branch, confined by a pinned, fail-closed policy. Code, toolchain, dev server and agent run inside it. Nothing reaches the host except what you export.

h5i box <command> --help is the authoritative flag reference and cannot go stale. Reach for it before guessing at a flag.

Are you inside a box?

$H5I_ENV_ID is set inside one. It changes what you should do:

Outside: you create boxes, hand work to them, and read exports.
Inside: you already have the whole worktree. Work normally. Some things are denied on purpose (see "When something is denied").

This is the opening of the README. Read the full README on GitHub.

Frequently asked about H5I

What else does h5i-dev publish alongside H5I?
H5I is one of 2 skills that DirSkills catalogs from h5i-dev/h5i, the repository it ships in. Its siblings there include H5I Browser Light. Each one is a separate skill with its own page in this directory, installs the same way H5I does, and is maintained by h5i-dev in that same repository. The rest of the collection is listed on the h5i-dev/h5i page.
How does H5I compare to other DevOps skills?
H5I ranks #677 by stars among the 798 DevOps skills in this catalog. The most-starred ones next to it are Backend Patterns, API Connector Builder and Migration. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of H5I against them. Open each page to compare what they document and how they install.