POSH 0.42.0

Ruby gem docs
for humans and LLMs

Open source moves fast. Give developers and AI agents access to up-to-date documentation.

Get agent access Try the free TUI

Free TUI · €5/month agent tools · macOS & Linux

Trove API

Server that distributes Ruby gem docsets

posh sync Online
POSH

Local documentation

You Terminal UI
Your agent CLI / MCP
Project documentation flows into POSH. The Terminal UI and CLI / MCP each communicate with POSH in both directions.

CLI / MCP

Save tokens

Your agent reads the one section it needs, as clean Markdown. Not a whole GitHub page.

GitHub.com page with source
363 KB
POSH section
0.5 KB
Docs for at_css, Nokogiri 1.19.4.

Move faster

Offline-first. No googling, no network requests. Less harness loops!

$ posh search at_css --ref gem:nokogiri
→ Nokogiri::XML::Searchable#at_css
$ posh read …#method-i-at_css
→ at_css(*rules, [namespace-bindings, …])
Two local calls to the right answer.

Secure docs

We're running multiple security checks on everything agent will read

  1. Built in an isolated VM
  2. Heutralized injections
  3. Specialized model scans for prompt injections
  4. Docs treated as data, not instructions
Multiple layers of security.

Terminal UI.

  • Project-wide search Every gem in your project at once.
  • Outline Jump to any heading in a page.
  • Bookmarks Pages you return to, saved per project.
  • Find in page Search the document you’re reading.
  • Linked docs Click through cross-references.
  • Offline Docs stay on your machine.

One-command install

macOS & Linux · Homebrew, AUR, and more

Pricing

For you

Free

Your project’s docs in your terminal.

  • Interactive search and reading
  • Project documentation sync
  • Local, offline documentation access
Install POSH

For your coding agent

€5/month

or €45/year

The same docs, with tools your agent can use.

  • Agent CLI search and reading tools
  • Local MCP server
  • Flat subscription. No per-request fees.
Start 14-day trial

Need something for your team? Private gems, SSO, or a hosted setup?

Let’s talk

FAQ

Is POSH open source?

The client and back-end applications are not open source.

But we maintain our own gems and actively contribute to the open-source projects we use.

Does POSH work offline?

Yes. Run posh sync with an internet connection to download or update documentation. After that, search and read locally. Documentation syncs only when you run the command.

Which operating systems are supported?

POSH runs on macOS and Linux. The install script picks the right build for your system. Homebrew, AUR, and manual downloads are covered in the installation docs.

Which programming languages are supported?

POSH supports Ruby. Python and Go support are planned.

Product updates