Weft
Weft functions as a package manager for AI coding agent enhancements and harnesses.
Open SourceCoding & Dev
Visit website Free to browse · updated 2026-06-29
What is Weft?
Weft organizes bundles known as harnesses that extend the capabilities of AI coding tools. Users can search a built-in catalog, install multiple items at once, and specify targets such as particular interfaces or project scopes. The system records every change made during installation to ensure reversibility. This approach eliminates the need for cloning repositories or executing custom scripts from external sources. It supports consistent setups across teams by allowing scoped installations that avoid configuration inconsistencies. Commands also enable inspection of active items and background catalog refreshes. The tool requires a recent Node runtime and provides options for non-interactive or dry-run operations to fit various workflows. It targets several popular AI coding environments and maintains compatibility through verified file placements.
Key features
Package manager for AI coding agent harnesses
Installs skills, agents, slash commands, hooks, and MCP servers
Supports Claude Code, Codex, Gemini, Cursor, and opencode
Tracks every installed file via receipts for exact uninstall/upgrade
Offline catalog with typo-tolerant search
Global or per-project scope installs
Scriptable CLI with --json, --dry-run, and --yes flags
What you can use Weft for
Install Complete Workflow Systems
Use weft install gsd-core to deploy a full spec-driven development system including agents, skills, slash commands, and hooks into a chosen AI coding CLI without manual cloning or configuration.
Add Curated Skill Packs
Run weft install anthropic-skills to incorporate official Anthropic skills for document processing, MCP server building, skill authoring, and web design directly into supported harnesses.
Track and Revert Installations
Leverage receipt-based tracking to perform exact uninstalls or upgrades across global or per-project scopes, ensuring no leftover files when removing harnesses like gsd-core.
How to use Weft
- 1Install Weft globally with npm install -g @weft-ai/weft
- 2Search the catalog using weft search with typo-tolerant queries
- 3Review details for a harness with weft info
- 4Install one or more harnesses via weft install specifying CLI and scope
- 5Manage active installs with weft list, weft upgrade, or weft uninstall
Weft pricing
Pricing model: Open Source. Plan details are indicative — check the site for current prices.
Free
Free
- npm install -g @weft-ai/weft
- MIT license
- Full catalog access
- CLI commands for search/install/upgrade
Editor's verdict
Pros
- +One-command install/uninstall across multiple CLIs without manual file handling
- +Standardizes tooling across teams with no config drift
Cons
- –Requires Node.js ≥ 22
- –Limited to supported AI coding CLIs only
Our take: Weft is a solid coding & dev choice. It's valued for one-command install/uninstall across multiple clis without manual file handling and standardizes tooling across teams with no config drift. The main trade-off is requires node.js ≥ 22. A good pick if you want capable AI without a high upfront cost.
Frequently asked questions
Weft is a package manager for AI coding agent harnesses that installs skills, agents, slash commands, hooks, and MCP servers into tools like Claude Code and Cursor.
Summary
Weft is a solid coding & dev choice. It's valued for one-command install/uninstall across multiple clis without manual file handling and standardizes tooling across teams with no config drift. The main trade-off is requires node.js ≥ 22. A good pick if you want capable AI without a high upfront cost.
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