Agent skill

Real Time Collab

Multi-user collaborative editing with Yjs CRDT, SSE fast-path transport, and granular server-side merge.

No licenceAuto-check passedBackend & APIs

Install Real Time Collab

skills CLI

$ npx skills add BuilderIO/agent-native --skill real-time-collab -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install BuilderIO/agent-native real-time-collab --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/real-time-collab .claude/skills/real-time-collab && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "real-time-collab" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/real-time-collab into .claude/skills/real-time-collab/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "real-time-collab", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/real-time-collab

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add BuilderIO/agent-native --skill real-time-collab -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install BuilderIO/agent-native real-time-collab --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/real-time-collab .agents/skills/real-time-collab && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "real-time-collab" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/real-time-collab into .agents/skills/real-time-collab/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "real-time-collab", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add BuilderIO/agent-native --skill real-time-collab -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install BuilderIO/agent-native real-time-collab --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/real-time-collab .cursor/skills/real-time-collab && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "real-time-collab" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/real-time-collab into .cursor/skills/real-time-collab/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "real-time-collab", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/BuilderIO/agent-native.git --path .agents/skills/real-time-collab

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add BuilderIO/agent-native --skill real-time-collab -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install BuilderIO/agent-native real-time-collab --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/real-time-collab .gemini/skills/real-time-collab && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "real-time-collab" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/real-time-collab into .gemini/skills/real-time-collab/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "real-time-collab", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install BuilderIO/agent-native real-time-collab

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add BuilderIO/agent-native --skill real-time-collab -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/real-time-collab .github/skills/real-time-collab && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "real-time-collab" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/real-time-collab into .github/skills/real-time-collab/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "real-time-collab", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add BuilderIO/agent-native --skill real-time-collab -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install BuilderIO/agent-native real-time-collab --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/real-time-collab .opencode/skills/real-time-collab && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "real-time-collab" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/real-time-collab into .opencode/skills/real-time-collab/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "real-time-collab", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: real-time-collab
GitHub stars: 7.1k
Token cost: ~4.1k tokens
SKILL.md length: 1,558 words
Files: 1
Skills in repo: 102
Repo updated: Oct 8, 2026
First seen: Oct 8, 2026
Licence: None found

At a glance

Multi-user collaborative editing with Yjs CRDT, SSE fast-path transport, and granular server-side merge.

Works in 5 steps: Install packages → Add collab server plugin (with explicit… → Use the client hook → …
Adding real-time collaborative editing to a template
SKILL.md covers Rule, How It Works, Agent + Human Editing and Agent Edits As A Real-Time…, plus 8 more sections
Calls pnpm

What it does

Real Time Collab is an agent skill from BuilderIO/agent-native. Multi-user collaborative editing with Yjs CRDT, SSE fast-path transport, and granular server-side merge. Use when adding real-time collaborative editing to a template, debugging sync issues, or understanding how the agent and humans edit documents simultaneously.

Its SKILL.md is about 4.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Backend & APIs, covering Backend development. The repository describes itself as: A framework for building agentic apps.

When your agent uses it

Adding real-time collaborative editing to a template
Debugging sync issues
Understanding how the agent and humans edit documents simultaneously

Example prompts

“/real-time-collab”

Workflow steps

5 steps, taken from the step headings in SKILL.md.

Install packages
Add collab server plugin (with explicit access)
Use the client hook
Add TipTap extensions
Add to vite.config.ts optimizeDeps

What it can do on your machine

Read from SKILL.md and the folder at commit e16da0c. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- pnpm
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use pnpm, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Real Time Collab loads about 4.1k tokens when it runs. Until then it costs about 70 tokens; SKILL.md has 1,558 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~70
When it runs · the whole SKILL.md, loaded when a task matches: ~4.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 1,558 words (~4,065 tokens).

“Collaborative editing uses Yjs CRDT via TipTap. The agent and human users are equal participants — both edit the same Y.Doc and changes merge cleanly without conflicts. Always choose an explicit access mode on createCollabPlugin.”

— opening of SKILL.md by BuilderIO

name: real-time-collab
scope: dev
metadata.internal: true

Outline of SKILL.md

Real-Time Collaboration
Rule
How It Works
Agent + Human Editing
Agent Edits As A Real-Time Peer Editor
The updatedAt gate
Lead-client election
v1 limitation
Security
Always choose an explicit access mode
Payload limits
Enabling Collaboration
1. Install packages
2. Add collab server plugin (with explicit access)
3. Use the client hook
4. Add TipTap extensions
5. Add to vite.config.ts optimizeDeps
Collab Routes (auto-mounted)
Granular Server-Side Merge Pattern
Agent Presence & Lingering Edit Highlights
Per-User Undo (never revert someone else's work)
Common Pitfalls
Related Skills

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/real-time-collab of BuilderIO/agent-native.

Open the folder on GitHubat commit e16da0c

Compare with similar skills

Real Time Collab next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Real Time Collab compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Real Time Collab this skillBuilderIO/agent-native	7.1k	—	~4.1k	Automated safety check: Pass	None	today
Infer Conventionsanonaddy/anonaddy	4.9k	5 repos	~3.1k	Automated safety check: Pass	MIT	2 days ago
Twenty Syncable Entity Validationtwentyhq/twenty	58k	—	~3.3k	Automated safety check: Pass	Custom licence	today
Livewire Developmentcoollabsio/coolify	63k	—	~964	Automated safety check: Pass	MIT	yesterday
Antipattern Preventiondoorkeeper-gem/doorkeeper	5.5k	—	~1.1k	Automated safety check: Pass	MIT	yesterday
Livewire Developmentyungifez/skuul	409	1 repos	~1.9k	Automated safety check: Pass	MIT	3 days ago

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Questions about Real Time Collab

What does Real Time Collab do?

Multi-user collaborative editing with Yjs CRDT, SSE fast-path transport, and granular server-side merge. Real Time Collab is an agent skill from BuilderIO/agent-native. Multi-user collaborative editing with Yjs CRDT, SSE fast-path transport, and granular server-side merge.

When should I use Real Time Collab?

Real Time Collab fits situations like: adding real-time collaborative editing to a template; debugging sync issues; understanding how the agent and humans edit documents simultaneously.

How do I install Real Time Collab in Claude Code?

Run `npx skills add BuilderIO/agent-native --skill real-time-collab -a claude-code`. Or copy the skill folder (.agents/skills/real-time-collab in BuilderIO/agent-native) into .claude/skills/real-time-collab in your project. Claude Code loads it when a task matches its description.

How do I install Real Time Collab in Codex?

Run `npx skills add BuilderIO/agent-native --skill real-time-collab -a codex`. Or copy the skill folder (.agents/skills/real-time-collab in BuilderIO/agent-native) into .agents/skills/real-time-collab in your project. Codex loads it when a task matches its description.

Can I use Real Time Collab in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add BuilderIO/agent-native --skill real-time-collab -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/real-time-collab, .gemini/skills/real-time-collab, .github/skills/real-time-collab and .opencode/skills/real-time-collab in your project.

What does Real Time Collab need to run?

Going by SKILL.md and its folder, Real Time Collab needs the command-line tools its instructions call (pnpm).

Does Real Time Collab access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Real Time Collab safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Real Time Collab use?

No licence was found for Real Time Collab or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Real Time Collab use?

About 4.1k tokens (SKILL.md is roughly 16k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Real Time Collab?

Skills that share tags, products or a category with Real Time Collab: Infer Conventions (anonaddy/anonaddy, 4.9k stars), Twenty Syncable Entity Validation (twentyhq/twenty, 58k stars), Livewire Development (coollabsio/coolify, 63k stars) and Antipattern Prevention (doorkeeper-gem/doorkeeper, 5.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Real Time Collab?

BuilderIO (a GitHub organization) maintains it in BuilderIO/agent-native, which has 7,087 GitHub stars. The repository holds 102 skills in this directory. The repository was last updated on October 8, 2026.

Source: BuilderIO/agent-native on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Real Time Collab

Install Real Time Collab

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

Infer Conventions

Twenty Syncable Entity Validation

Livewire Development

Antipattern Prevention

Livewire Development

Layered Rails

More from BuilderIO/agent-native

Actions

Client Methods

Adding A Feature

Address Feedback

Audit Log

Automations

Questions about Real Time Collab

Install Real Time Collab

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

More from BuilderIO/agent-native

Related

Questions about Real Time Collab