Open source, privacy friendly Agent Skills, curated by humans.
Search, run, install, and keep them current.

Features

• 📖 Try a Skill without installing it. skilld run prints SKILL.md to stdout and writes no file. Your Agent follows it for this session only.
• 🎯 One install, 19 Agent targets. skilld install detects the Agents you use and writes the same Skill to each. Claude Code, Codex, Cursor, Gemini CLI, Zed, and 14 more.
• 🦀 One native binary, no runtime to install. Startup is under a millisecond. Install it with curl and you need no Node.js at all.
• 🔏 Every install is pinned to a commit. The lockfile records the exact source commit. skilld checks the Artifact digest and attestation before it writes a file. skilld outdated reports when the source moved.
• 🔍 No telemetry. skilld sends no analytics. Account credentials go to your operating system keychain, never a plain text file.

What is skilld?

skilld is a curated registry of agent Skills. Real maintainers write them in their own GitHub repositories. One command loads one into any Agent.

A Skill is a directory with a SKILL.md file in the Agent Skills format. Most Skill directories rank by install count, or ship a generated doc dump. skilld names the author, links the exact file, and records the commit it came from. Read it before your Agent follows it.

The skilld CLI searches, runs, installs, updates, verifies, and removes Skills. It contains no Skill generation logic and no Agent runtime. Skill authoring lives in visible skilld-maintained Skills and the optional Harness.

Get Started

Give your Agent a Skill URL. There is nothing to install:

Use this Skill: https://skilld.dev/gh/antfu/skills/vue

Your Agent reads the page and follows it for that session. Nothing is written to your project. Add .md to any Skill URL for the raw SKILL.md.

Find one on skilld.dev. Trending Skills shows what is moving this month. Every Skill page credits its author and links the source file on GitHub. Curators publish named collections.

Run it from your terminal

Same transient run, from a shell. You need no install and no project files:

npx skilld search vue
npx skilld run antfu/skills/vue

skilld run prints SKILL.md to stdout and writes no file. Pass the output to your Agent.

Set it up properly

Once a Skill earns its place, install the CLI and teach your Agent to drive it:

npm install --global skilld
skilld install skilld --global

Your Agent then searches the registry and loads Skills on its own. Ask for what you need, in your own words:

Find a skilld Skill for Vue and use it

Keep a Skill in every session of one project:

skilld install antfu/skills/vue

An install writes files. If an Agent runs the install, it asks you first.

Run or install?

Start with skilld run. Install when you reach for the same Skill again.

Agent targets

Use --agent to name a target. Repeat it for several, or use --agent all. -g is the short form of --global.

skilld install skilld -g --agent codex
skilld install skilld -g --agent kiro --agent zed
skilld install skilld -g --agent all

Selectors

OWNER/REPOSITORY/SKILL names one Skill in the registry. OWNER/REPOSITORY names every Skill in one Repository. skilld search prints the selector for each result. skilld 3.0 printed skilld:OWNER/REPOSITORY/SKILL and gh:OWNER/REPOSITORY. The CLI still accepts both. skilld-dev/skills is the Repository; find-skill is the Skill directory inside it.

Supporting files

skilld names the supporting files a Skill carries and prints none of them. Read one when the instructions call for it:

skilld run skilld-dev/skills/find-skill --revision <commit> --file agents/openai.yaml

Use the revision and file-read command from the initial output. skilld never prints executable or binary files. A Skill that must run its own script needs an install.

Install without Node.js

macOS and Linux:

curl -fsSL https://github.com/skilld-dev/skilld/releases/latest/download/install.sh | sh

Windows PowerShell:

irm https://github.com/skilld-dev/skilld/releases/latest/download/install.ps1 | iex

The script installs one native binary to ~/.skilld/bin. That install upgrades itself in the background after it verifies the signed release manifest. Restart skilld to use the new version. An npm install prints the upgrade command instead. Set SKILLD_NO_UPGRADE=1 to turn off upgrade checks. See SECURITY.md for each check.

The npm package selects the same native executable for your system. It carries no JavaScript engine and no fallback.

Commands

# Find a Skill
skilld search <query>

# Run a Skill for this session only (start here)
skilld run <selector>

# Read one supporting file that Skill carries
skilld run <selector> --revision <commit> --file <path>

# Install a Skill in the current project, or restore the lockfile
skilld install <selector>
skilld install

# List every Skill a Repository, curator, or collection names
skilld run anthropics/skills
skilld run @harlan-zw
skilld run @harlan-zw/agent-workflow-stack

# Install every Skill one of those refs names
skilld add @harlan-zw/agent-workflow-stack

# Inspect installed Skills
skilld list
skilld view <skill>

# Keep Skills current
skilld outdated
skilld update --check --json
skilld update <skill>
skilld verify <skill>

# Remove a Skill
skilld remove <skill>

Project installs update .skills/skilld-lock.yaml and the selected Agent targets. Use --global (or -g) for account level Agent targets. Use --agent <agent> to name a target; repeat it for several, or use --agent all. Use --mode copy or --mode symlink to control target writes. Use --json with search, run, and update --check for stable output.

Run skilld install --help for every Agent target value.

Author a Skill

Run a skilld-maintained Skill, or the Harness, to bootstrap a draft Skill you own. Use generate-package-skill for a package you maintain. Use generate-project-skill for the project you work in. Edit the draft, commit it to your Repository, and own it from there. skilld lists it with your name and a link to the file.

skilld run skilld-dev/skilld/generate-project-skill
skilld run skilld-dev/skilld/generate-package-skill

A project Skill carries the search commands your Agent repeats against real files. It replaces the v2 local documentation index.

The skilld-maintained Skills:

• skilld: search, run, and install Skills with the CLI
• generate-package-skill: draft a Skill for a package you maintain
• generate-project-skill: draft a Skill from a project you maintain
• review-skill: review a Skill before you publish it

Direct Skill runs stay user reviewed. The instructions and changes stay visible to you.

skilld run with a Repository, curator, or collection ref prints an index. The index has one line per Skill with its run command. It loads no Skill. skilld add installs the Skills the same ref names. It accepts the skilld install flags. A terminal asks which Skills to install. --all installs every one without asking. Any other context, such as an Agent, a pipe, or CI, installs every one. A Repository that skilld.dev does not list yet falls back to its public GitHub tree. Those Skills install through direct mode and record the unverified source status.

Artifact delivery

The skilld CLI resolves remote Skills through the skilld.dev API. GitHub remains the source of truth.

skilld.dev builds an immutable Artifact from an exact Git commit. The CLI checks its digest, Artifact attestation, check results, and archive before installation. The CLI stops pending Artifact creation after at most 60 seconds.

Private Repository delivery requires both:

• skilld auth login for a skilld.dev account
• Access through the skilld GitHub App installation

Private Artifact responses use short lived, one time grants. The API does not expose private storage addresses.

Direct mode

--direct fetches a public GitHub Repository without the skilld.dev API. Explicit GitHub selectors use hosted Artifact delivery unless you add --direct.

skilld install github:skilld-dev/skilld/skills/skilld --direct --agent codex

The installed Skill receives the unverified source status. Review the Skill before use.

Direct mode never handles private Repositories. It never falls back to skilld.dev.

Source status

• verified: skilld checked a skilld.dev Artifact and its attestation.
• local: the Skill came from a local directory or a bundled skilld-maintained Skill.
• unverified: direct mode fetched the Skill from public GitHub.

verified describes provenance checks. It does not endorse the instructions inside a Skill. See SECURITY.md for what skilld checks and how to report a problem.

Account and configuration

skilld auth login
skilld auth status
skilld auth logout

skilld config get agent.targets
skilld config set agent.targets codex,claude-code
skilld config list

Native builds store account credentials in the operating system keychain. The CLI does not store tokens in environment variables or plain text files.

Privacy

The skilld CLI sends no telemetry or analytics. It makes network requests only for these reasons:

• skilld search, skilld run, and skilld install of a hosted Skill call the skilld.dev API.
• If you signed in, those requests carry your account token.
• skilld auth login sends your computer hostname to name the sign-in. Only you see it on skilld.dev.
• --direct fetches public Skills from GitHub.
• skilld update compares commits through skilld.dev or the GitHub API.
• At a terminal, the CLI checks GitHub Releases or the npm registry for a new version once a day.

The upgrade check never runs in CI or inside an Agent. Set SKILLD_NO_UPGRADE=1 to turn it off.

Harness

Use skilld-harness when an application or CI needs strict output checks. The Harness runs the same visible Skill files through an AI SDK Harness. See the skilld-harness guide for its full contract.

Upgrade from v2

v3 does not import v2 configuration or lockfiles. Back up v2 state before replacing the CLI.

Follow the v2 to v3 migration guide. It maps removed commands and explains rollback limits.

Development

pnpm install
pnpm test:run
pnpm lint
pnpm typecheck
pnpm build

The Rust workspace owns the skilld CLI. packages/harness owns generation and review execution. packages/protocol owns the skilld.dev wire contract. skills owns the visible skilld-maintained Skills.

The WASIp2 build remains an internal proof. Published packages use native executables only.

License

MIT