Hamster

Name: Hamster
Author: gethamster

by gethamsterversion 0.1.1i★ –iRuns in the cloud

Registry nameio.github.gethamster/hamster

Install

Overview

Description from the maker (original English)

Search and manage Hamster briefs, tasks, plans, and knowledge; trigger delivery from your agent.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://tryhamster.com/mcp

Run this in your terminal

claude mcp add --transport http hamster https://tryhamster.com/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "hamster": {
      "url": "https://tryhamster.com/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "hamster": {
      "type": "http",
      "url": "https://tryhamster.com/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://tryhamster.com/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account gethamster, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Search & AI memoryi

More stars than 0% of the other 7249 servers in this category
Published to the registry more recently than 68% of the other 7249 servers in this category
Basic checks equal to or better than 100% of the other 7249 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Hamster safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.1) reached the registry 18 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated today

Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago

Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated last month

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Hamster

Install Hamster. One plugin. Talk through hosted MCP or the CLI. Keep the plan on disk, then ship from it.

This is the Hamster product: Agent Plugins skills on every supported client, hosted MCP on every client that supports MCP and installs from GitHub or a marketplace, plus generated native execution workers on Claude Code, GitHub Copilot CLI, and Grok Build. The CLI is how the plan stays in this repo. It is not a second install.

Install

Installation differs by client. If you use more than one, install Hamster separately for each one.

Cursor

Customize → Add Marketplace → Import from GitHub.
Paste https://github.com/gethamster/plugin at User scope and select Import.
Open the Personal tab and select Add next to Hamster.

On Enterprise, an admin must allow marketplace imports. Once Hamster is on the Cursor marketplace, /add-plugin hamster works too:

/add-plugin hamster

Grok Bot is not a separate Hamster package. It uses the same Cursor account and plugin library, so the Cursor install above is the Grok Bot install. Do not run /add-plugin in the Grok Bot chat. If Grok Bot shows "Complete GitHub auth to sync installed plugins", complete GitHub auth when Grok Bot asks.

Claude Code

/plugin marketplace add gethamster/plugin

/plugin install hamster@hamster-plugins

Codex CLI

codex plugin marketplace add gethamster/plugin

codex plugin add hamster@hamster-plugins

You can also launch codex, run /plugins, and install hamster@hamster-plugins.

Codex Plugins Directory

The Hamster listing in OpenAI's Plugins Directory, used by Codex and ChatGPT, is a zip of this same plugin produced by node scripts/build-codex-bundle.mjs: the Codex manifest, the hosted MCP connector in .mcp.json, the skills, and the listing images. CI builds it on every push and uploads it as a workflow artifact, and the artifact download is the zip to upload to the directory.

One section differs. The zip replaces the "Install the CLI" section of skills/setup/SKILL.md with codex-directory/install-cli.md: when the CLI is missing, setup asks you to install it yourself from CLI binary instead of running the installer, then signs you in and syncs as usual.

Hamster connects to your workspace through the hosted MCP server. Coding skills require access to your repository and a shell.

Antigravity

From a clone of this repository:

agy plugin install ./plugins/hamster

Or from GitHub:

agy plugin install https://github.com/gethamster/plugin/plugins/hamster

Both install plugins/hamster, the folder every other client installs. The bare repository URL also works, but agy then imports the root as a Gemini CLI extension and drops the agents' model settings; running the command above replaces that install in place.

If Hamster 3.2 is already installed, uninstall it before you install 3.4. An in-place Antigravity install retains the four skill directories renamed in 3.4.

agy plugin uninstall hamster

agy plugin install https://github.com/gethamster/plugin/plugins/hamster

In the Antigravity app (2.15 or newer), authenticate hamster_hamster under Settings → Customizations → Installed MCP Servers. The plugin registers that server itself, so a manual hamster entry in mcp_config.json would add a second copy of every tool.

Using GitHub Copilot CLI, Gemini CLI, Grok Build, OpenCode, or Pi? See More install options.

More install options

GitHub Copilot CLI

copilot plugin marketplace add gethamster/plugin

copilot plugin install hamster@hamster-plugins

To sign in to the hosted MCP server, run /mcp auth hamster.

Gemini CLI

gemini extensions install https://github.com/gethamster/plugin

To sign in to the hosted MCP server, run /mcp auth hamster.

Grok Build

grok plugin install gethamster/plugin --trust

To sign in to the hosted MCP server, open /mcps, select hamster, and press i.

OpenCode

OpenCode takes the skills and the hosted MCP server in two steps. Run these in your project folder:

npx skills add gethamster/plugin --agent opencode

opencode mcp add hamster --url https://tryhamster.com/mcp

Add --global to npx skills add to install into ~/.agents/skills/ instead of the current project (opencode mcp add --url needs OpenCode 1.17.0 or later).

To sign in to the hosted MCP server, run opencode mcp auth hamster.

Pi

pi install npm:@tryhamster/pi

To track the repository instead of npm releases, run pi install git:github.com/gethamster/plugin.

The Pi package installs the skills only. To connect the hosted MCP server, add it and sign in:

pi mcp add hamster --url https://tryhamster.com/mcp

pi mcp login hamster

After install

Talk — hosted MCP at https://tryhamster.com/mcp, or hamster chat when MCP tools are unavailable and the CLI is signed in. Your client owns the Hamster sign-in.
Plan on disk — say Install Hamster, or run ship. The setup skill installs the CLI if needed, runs hamster auth login, and syncs the plan.
Ship — execute the brief already on disk. Nothing runs automatically on session start.

Skills

Claude Code and Copilot CLI list these as /hamster: . Cursor and Grok Build list them as / , and Pi as /skill: . In OpenCode, ask for one by name, or in OpenCode 2 mention it as @setup. The table uses the Claude form.

Skill	Persona	Description
`/hamster:setup`	—	Install the CLI, sign in, and sync the plan into this repo
`/hamster:ask-hamster [request]`	Workspace Copilot	Connect current code with workspace priorities, blockers, blueprints, or related work (hosted MCP when the client has it; `hamster chat` otherwise)
`/hamster:ship [brief]`	Release Engineer	Ship a brief: merge base, implement in parallel, test, review, bisectable commits, PR
`/hamster:plan-hamster [brief]`	Tech Lead + CEO/Eng modes	Analyze brief with optional founder or architecture review
`/hamster:resume-hamster [brief]`	—	Resume interrupted execution from where you left off
`/hamster:review-hamster`	Staff Engineer	Paranoid two-pass code review (CRITICAL then INFORMATIONAL)
`/hamster:qa [mode]`	QA Lead	Systematic testing: diff-aware, full, quick, regression
`/hamster:retro [days]`	Eng Manager	Engineering retrospective with metrics, trends, team analysis

Four skills carry a -hamster suffix because Cursor invokes plugin skills as a bare /skill-name, and ask, plan, and resume are Cursor's own concepts — cursor-agent --mode takes plan and ask, --resume selects a session — so short names compete with them there. review is renamed with that family so Cursor's command list stays one convention. Claude Code namespaces plugin skills as / : and they cannot conflict, so on Claude the suffix is redundant and you type /hamster:ask-hamster. One skills tree serves every client, so that is the cost of being unambiguous on Cursor. ship, qa, retro, and setup shadow nothing and stay short.

`/hamster:setup`

The readiness path. Noninteractive check first (ensure-ready). If the CLI is installed and you are signed in, it runs hamster sync to refresh the plan. Otherwise it installs the CLI, opens login, and inits/syncs — only when you asked.

`/hamster:ask-hamster`

The gateway for open-ended questions that need Hamster's judgment across the workspace, such as how the code you're changing relates to priorities, blueprints, or decisions. Asks through the ask_hamster MCP tool when the client has it; otherwise hamster chat is the same ask path over the CLI. Direct reads and writes go to the named Hamster MCP tools instead. For example:

/hamster:ask-hamster I'm modifying auth middleware in apps/web/app/api/. What does our blueprint say about third-party integrations?

/hamster:ask-hamster I prototyped rate limiting in apps/api/middleware/rate-limit.ts. Which brief or initiative should this work belong to?

Follow-up questions continue the same Hamster conversation when they depend on the previous response.

`/hamster:ship`

The main orchestrator. Ship, plan-hamster, and resume-hamster share brief selection: a slug, UUID, or Hamster Studio URL takes precedence, followed by an exact title or short title (the part before a subtitle separator). Names ignore case, a leading “the”, a trailing “brief”, and trailing punctuation. A unique match proceeds without a selection question; ambiguous or partial-only names require clarification.

/hamster:ship user-authentication

/hamster:ship the Checkout reliability brief. /hamster:ship https://tryhamster.com/home/hamster/briefs/2de8d546-50ab-4dbd-a678-579ec8119f60

If no argument is given, presents an interactive picker of actionable briefs.

Flow: Readiness (setup/ensure-ready) → Setup (prereqs + live sync) → Brief selection → Inline wave scheduling (one confirmation) → Branch + merge base → Parallel wave execution (implement → validate + test → wave review → bisectable commits) → Final validation → Ask about PR creation

No plan generation or task elaboration occurs at any step — scheduling only organizes the pre-generated tasks into parallel waves.

`/hamster:plan-hamster`

Read-only analysis with optional deep review. Produces the execution plan without making changes.

/hamster:plan-hamster api-rate-limiting

After analysis, choose a review mode:

CEO Review (Founder Mode) — 10-section deep dive from first principles
Eng Review (Architecture Mode) — 4-section technical review with ASCII diagrams and test plan
Quick Analysis — Just the plan

`/hamster:resume-hamster`

Resumes an interrupted execution. Auto-detects the brief from the git branch name (feature/{key}-{id}-{slug}), in-progress tasks, or a provided argument.

/hamster:resume-hamster

/hamster:resume-hamster user-authentication

`/hamster:review-hamster`

Paranoid two-pass code review for the current feature branch:

Pass 1 (CRITICAL): SQL safety, race conditions, auth boundaries, enum completeness, secrets
Pass 2 (INFORMATIONAL): Side effects, magic numbers, dead code, test gaps, type coercion, time safety
Interactive resolution for critical findings with fix/acknowledge/false-positive options

/hamster:review-hamster

`/hamster:qa`

Systematic testing with 4 modes:

/hamster:qa diff        # Test only what changed (default on feature branches)

/hamster:qa full # Full test suite with coverage /hamster:qa quick # 30-second lint + typecheck + smoke tests /hamster:qa regression # Changed files + dependents, flag new failures

Includes issue taxonomy (functional/type-safety/integration/performance/coverage-gap) and optional fix loop.

`/hamster:retro`

Engineering retrospective from git history:

/hamster:retro          # Last 7 days (default)

/hamster:retro 14 # Last 14 days /hamster:retro 30 # Last 30 days /hamster:retro 24h # Last 24 hours

Produces: metrics table, hourly distribution, session analysis, hotspots, PR sizes, per-contributor deep dive with praise and growth suggestions, trends vs last retro, and a narrative summary.

Execution workers

Worker	Persona	Purpose
task-executor	Senior Engineer	Implements one parent task + subtasks; loads project skills, blueprints, and methods
wave-reviewer	Staff Engineer	Reviews a whole wave's diff (per-parent verdicts + cross-parent integration checks), then simplifies

Canonical worker protocols live in plugins/hamster/skills/ship/references/agents/. plugins/hamster/agents/task-executor.md and plugins/hamster/agents/wave-reviewer.md are generated native adapters (registratio

Only the beginning is shown; read the rest in the repo

Hamster

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Search & AI memoryi

Common questions

Alternatives

Context7

Codebase Memory

Exa

README from the maker

Hamster

Install

Cursor

Claude Code

Codex CLI

Codex Plugins Directory

Antigravity

More install options

GitHub Copilot CLI

Gemini CLI

Grok Build

OpenCode

Pi

After install

Skills

/hamster:setup

/hamster:ask-hamster

/hamster:ship

/hamster:plan-hamster

/hamster:resume-hamster

/hamster:review-hamster

/hamster:qa

/hamster:retro

Execution workers

`/hamster:setup`

`/hamster:ask-hamster`

`/hamster:ship`

`/hamster:plan-hamster`

`/hamster:resume-hamster`

`/hamster:review-hamster`

`/hamster:qa`

`/hamster:retro`