Laying out the streets…STEP 1 OF 3

Developer OS · Office #47,196

Long-term memory and engineering rules for Claude Code

In the Working with AI coding agents neighborhood (AI and agents). In town since 21 Oct 2026.

Nobody has claimed this office yet. Tablif records every new product and gives it an office; when its owner claims it, the lights go on.

Is this yours? Claim it

What Tablif read on Developer OS's site

What it is

Calls itself “plugin”.

  • Calls itself: plugin
“…developer-os is a free, MIT-licensed plugin that fixes both.”

Where it puts itself

Rules out “server” and “telemetry”.

  • Says it will not: server · telemetry
“…developer-os adds what is missing in three layers that load at different costs.”
“No server, no telemetry”

What it costs

A free tier, free forever.

  • Free plan: free forever
“…developer-os is a free, MIT-licensed plugin that fixes both.”
“…you work with Claude Code across several client or product repositories, alone or in a small team;”

Who it sells to

Sells to developers. Built for small businesses and solo users.

  • Sells to: developers
  • Company size: small businesses · solo / indie
“…you work with Claude Code across several client or product repositories, alone or in a small team;”

How it runs

A browser extension for Linux and macOS. Runs locally and works offline. Open source. AI is the core of the product. Built with GitHub Pages.

  • Kind: extension
  • Runs on: Linux · macOS
  • Runs where: on the device, offline
  • Open source: yes
  • AI role: core to the product
  • Built with: GitHub Pages
“…developer-os is a free, MIT-licensed plugin that fixes both.”
“…macOS or Linux The core rules load with cat .”

What it works with

Integrates with developer-os. Built on jq and ripgrep. Names Claude Code, Codex and 3 more on its pages.

  • Integrates with: developer-os
  • Built on: jq · ripgrep
  • Names: Claude Code · Codex · GitHub CLI · +2
“Claude Code forgets everything between sessions, and its defaults are not a careful engineer's habits. developer-os is a free, MIT-licensed plugin that fixes both.”
“From a clone, scripts/install-codex.sh --dry-run shows what would change; without the flag it copies the skills and the core rules into your Codex setup.”

What it offers as proof

Live, no waitlist. Try it without signing up. Publishes docs and a blog.

  • Instant signup: yes
  • Trial asks for: nothing
“/plugin marketplace add msolecki/developer-os”
“Docs -> https://msolecki.github.io/developer-os/docs/index.html”

Sources

Tablif read these pages, last on 21 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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