Your AI skills, shared like code.

STH connects a Git repository to your project and synchronises AI skills, agents and prompts. A single binary, no stored secrets, multi-provider.

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Compatible withGitHubGitLabAzure DevOpsBitbucket
~/projects/acme — sth

Why STH

The missing link between your team and its AI skills.

Without STH, every developer copy-pastes prompts between projects, forgets updates, and stores tokens anywhere. With STH, your skills live in a versioned Git repository, and each project pulls the exact version that suits it — like a package manager, but for your AI skills.

The platform

One platform, three pillars

STH covers the whole lifecycle of your AI skills — from distribution to governance.

The CLI

Install and sync skills, agents and prompts from Git, with a single binary.

Discover the CLI

STH Cloud

A hosted catalogue, licences and shared configuration for your teams.

Discover STH Cloud

SafePrompt

Block sensitive data before it reaches public LLMs.

Discover SafePrompt
Explore all features

Features

Built for teams that take AI seriously.

A single binary

No Node, no Python, no Docker. Download the Go executable for Windows, macOS or Linux and you're ready.

Multi-provider

GitHub, GitLab, Azure DevOps, Bitbucket. Same tool, same flow, no matter where your skills repo lives.

Zero stored secrets

STH persists no keys. Tokens are read from your environment variables, just like git or gh would.

Real-time Buddy

An ASCII mascot that changes its expression based on your project's state. `sth buddy --watch` keeps an eye on your files live.

Atomic writes

Advisory locks and atomic writes: no corruption, even if two processes run in parallel.

Pinned versions

Lock a skill to a specific version while the others auto-update.

How it works

Three commands to get going.

  1. 1Step 1

    Configure your repository

    `sth init` opens a guided wizard: provider choice, repo ID, branch, catalogue path. No config file to edit by hand.

  2. 2Step 2

    Install your skills

    `sth list` shows the remote catalogue. `sth install react/form-wizard` downloads the bundle into `.claude/skills/` with `--dry-run` available.

  3. 3Step 3

    Stay in sync

    `sth update` aligns everything with the repository. `sth status --json` reports the state of each resource. `sth buddy --watch` shows it visually.

Dive into the CLI

Designed for real workflows.

Every command was designed for a specific use case: preview without installing, detect local changes, track state in CI, or stay synced live.

Preview before installing

With --dry-run, sth install lists files that would be created, modified or overwritten — without touching the disk.

$ sth install react/form-wizard --dry-run
[create]  .claude/skills/react/form-wizard/SKILL.md
[create]  .claude/skills/react/form-wizard/templates/page.tsx
[create]  .claude/skills/react/form-wizard/templates/form.tsx
3 files would be written. Aucune modification disque.

CI-friendly

sth status --json returns a machine-readable state: up-to-date, outdated, modified-locally or unknown-baseline. Perfect for your pipelines.

$ sth status --json
[
  { "resourceName": "react/form-wizard", "status": "up-to-date" },
  { "resourceName": "skills/analyse-risque", "status": "outdated",
    "installedVersion": "a1b2c3d4", "latestVersion": "e5f6g7h8" },
  { "resourceName": "agents/reviewer", "status": "modified-locally",
    "modifiedFiles": ["agents/reviewer/SKILL.md"] }
]

Reactive in real time

sth buddy --watch monitors .sth/ and the target directory with fsnotify. Buddy changes expression as soon as a file moves.

$ sth buddy --watch
    💧

  ╭─────╮
  │ >/< │
  ╰─────╯
Tout est à jour.

[fsnotify] .claude/skills/agents/reviewer/SKILL.md modifié…
    ⚠️
  │ o.O │
Mise à jour disponible.

Per-resource locking

Pin react/form-wizard on a specific commit while other skills follow main. No version monorepo to manage.

$ cat .claude/skills/sth-state.json
{
  "entries": [
    { "resourceName": "react/form-wizard",
      "providerID": "production-skills",
      "pinned": true,
      "pinnedVersion": "v2.1.0" },
    { "resourceName": "skills/analyse-risque",
      "providerID": "production-skills",
      "pinned": false }
  ]
}

For whom

Three teams, one tool.

Product team

A React team that wants to share its prompts

You have 8 developers pasting the same prompts into .claude/skills/. STH turns your « ai-resources » repo into a single source of truth — every dev runs sth update and works with the same version.

  • ▸react/form-wizard
  • ▸react/storybook-stub
  • ▸tests/playwright-helper
Agency

An agency juggling client projects

Each client project has its own skills repo. STH manages multiple providers in parallel: a GitHub PAT for client A, a GitLab PAT for client B. Configs live in each project, not globally.

  • ▸client-acme/brand-tone
  • ▸client-bravo/legal-review
  • ▸internal/onboarding
Security

A security team enforcing audits

Your skills hold internal rules. With STH, the repo is private, tokens live in the environment, and sth status detects whether a developer locally modified a managed file.

  • ▸security/qse-checklist
  • ▸security/gdpr-review
  • ▸security/secret-scan

Supported providers

Your skills, where your code already lives.

STH talks directly to the APIs of major Git hosts. No proxy, no third-party service between you and your code.

GitHub
GitLab
Azure DevOps
Bitbucket

STH vs alternatives

Why pick STH?

Honest comparison with the serious options on the market — no straw man to make STH look good.

FeatureSTHPlugin Marketplace (native Claude)skillshare (open source)Git submodules
Full multi-provider Git (GitHub, GitLab, Azure DevOps, Bitbucket)partial
Selective install per resource
Pinned versions per skillpartialpartial
Local-modification detectionpartial
Machine-readable status for CI (--json)partial
Real-time watch modepartial
Multi-tenant (one PAT per project, several clients in parallel)partial
Single binary, no runtime to installbuilt-in
No secrets stored on disk

STH Code

Open source · coming soon

The open-source cockpit for your agents is coming soon

STH Code will bring Claude, Codex, Copilot, Git review and local history into one app. The code will be released under the MIT license when the first version is ready.

Discover STH Code

STH Cloud

Invite-only Alpha

Local first. Shared when it creates value.

Connect an organization only when you want to publish a private package, synchronize your team or share a library resource. Access and quotas remain enforced by the service.

See pricing

Your team’s knowledge, available where it matters

Hosted private catalogs, the organization library and remote MCP extend STH Code without replacing your Git repository or local data.

GITLIBRARYMCP

For the post-Alpha

Designed for what's next

These features land with the paid plans after the Alpha. A peek at what's coming.

Not in Alpha

Multiple organisations

Manage several organisations from a single account. Handy for agencies, multi-client freelancers and holdings.

Not in Alpha

Team governance

Fleet policies, audit export, delegation, SSO/SCIM and retention for organizations that need to govern usage at scale.

See pricing

FAQ

Frequently asked questions

What is STH?
STH (Skills Transfer Hub) is a CLI that installs and syncs your AI skills, agents and prompts from a Git repository — like a package manager for your AI skills.
Is STH free?
Yes, the Starter plan is free with no credit card. Pro and Team plans are coming for teams.
Which Git hosts are supported?
GitHub, GitLab, Azure DevOps and Bitbucket, plus the hosted STH Cloud catalogue.
Does STH store my secrets?
No. Tokens are read from your environment or keychain and never persisted by STH.
Which AI tools does STH work with?
Claude Code, Cursor, Copilot, Codex and Antigravity — any tool that reads its skills from a project folder.
Do I need Node, Python or Docker?
No. STH is a single Go binary for Windows, macOS and Linux.

Ready to stop copy-pasting prompts?

The Starter plan is free, no credit card required. Configure a repo in under two minutes.

Create my accountSee pricing
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