Tuff

What is Tuff?

Tuff is an open-source command-line tool, written in Rust, that treats the things a coding agent depends on as managed project assets. Skills, tools, MCP servers, hooks and policies live as files in your repository, and Tuff records where each came from, which version is installed and whether anyone has edited it since. You write a capability once in a tuff.toml manifest and Tuff emits it in the layout each agent reads, including Claude Code, Codex, Cursor and OpenCode, with a single tuff.lock file committed to the repo. Commands such as tuff add, diff and update give you drift detection and three-way merge updates, and tuff check can fail a CI run when tracked files no longer match the baseline. Teams can bundle capabilities into a versioned, digest-pinned pack and publish it through an OCI registry, then view every project's setup in Tuff Console, which you host yourself. Tuff is free to install with uv, brew, pip or cargo, and the site lists no paid plans.

Use cases

• Share agent skills across repositories
• Detect drift in tracked agent files
• Wire one MCP server into every agent
• Fail CI when agent setup changes
• Package capabilities as a versioned pack
• Audit what every agent project runs

Who it's for

• Platform engineering teams
• Developer experience teams
• AI engineers
• Teams using several coding agents

Why use Tuff

• Agent skills stop being copied by hand between projects, because each install has a recorded source and version.
• Edits to installed files show up as drift instead of silent forks, which makes reviews easier.
• One declaration reaches several coding agents, so a skill built for one harness is not stranded there.
• Everything lives in your repo with a lockfile, so the whole team shares the same setup without a hosted service.
• CI checks catch unexpected changes before an agent ships.

Tuff features

• Manages skills, tools, MCP servers, hooks and policies
• Write once in tuff.toml and emit per-harness files
• tuff.lock records source, version and baseline
• Drift detection and baseline diffs with tuff diff
• Three-way merge updates for git-sourced capabilities
• tuff check exits 1 on drift, with JSON output for CI
• Install from local folders, git, OCI registries or the MCP catalog
• Packs bundle capabilities into a digest-pinned .tuffpack artifact
• Self-hosted Tuff Console for org-wide reporting
• Project scope overrides global scope

Tuff integrations

• Claude Code
• Codex
• Cursor
• OpenCode
• GitHub Copilot
• Gemini CLI
• Windsurf
• Amp
• Goose
• JetBrains Junie
• GitHub Actions
• Claude Agent SDK

How to get started with Tuff

1. Install the CLI with uv, brew, pip, cargo or the install script, then run tuff init in your repository.
2. Create a capability, or add an existing one from a local folder, a git repo, an OCI registry or the MCP catalog.
3. Tuff writes it in each registered harness's format and records the source and baseline in tuff.lock.
4. Use tuff diff, tuff update and tuff check to review edits, merge upstream changes and gate CI.
5. Optionally build a pack, publish it, and publish CI reports to a self-hosted Tuff Console.

Tuff limitations

• Policy rules are a preview and are not enforced by every harness yet
• Tuff Console runs on your own server, so you operate it yourself
• Command-line only, with no hosted service

Tuff pricing

Tuff is open source, so you can use and self-host it for free.

Prices can change and may vary by country or exclude tax. Check the official pricing page.

Tuff alternatives

The main Tuff alternatives listed on Debuly are Composio, Agent Skills, Gram, AIPM, Lobu and Speakeasy AI Control Plane. The table compares pricing and platforms; order is A–Z.

1. 

   Agent Skills

   Open standard for packaging instructions, scripts and references in a SKILL.md folder that AI agents load on demand.

   Developer platformsAutomation and agentsCoding
   Open sourceVisit Agent Skills (official site)
2. 

   AIPM

   Package registry and command-line installer for versioned agent skills that install into Claude Code, Codex and Cursor projects.

   Developer platformsCodingProductivity
   Visit AIPM (official site)
3. 

   Composio

   Developer platform with SDKs, CLI and MCP that gives AI agents 1000+ pre-authenticated app toolkits and per-user sessions.

   Developer platformsAutomation and agents
   Visit Composio (official site)
4. 

   Gram

   Speakeasy's platform for building, hosting and governing MCP servers, with agent session logging, risk scanning and usage-based billing.

   Developer platformsAutomation and agentsCoding
   Free trialVisit Gram (official site)
5. 

   Lobu

   Open-source backend for running OpenClaw AI agents for many users, with Slack and chat integrations, sandboxed workers and a managed cloud.

   Automation and agentsDeveloper platformsChat assistants
   Open sourceVisit Lobu (official site)
6. 

   Speakeasy AI Control Plane

   Governance layer between AI agents and company systems that connects MCP servers, filters risky data, scopes access by role and logs every tool call.

   Developer platformsAutomation and agents
   PaidVisit Speakeasy AI Control Plane (official site)

Tuff FAQ

Sources & verification

Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.

Image credits

• Logo: from tuffcli.dev · fetched 24 Oct 2026 · Vendor trademark, used only to identify the product; removed on request
• Cover: none collected yet, so a generated tile is shown.

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