Linear CLI for AI Agents

CLIs are eating MCPs. The industry is converging on the very same idea. MCPs for all their merit can be token hungry, slow, and unreliable for complex tool chaining. However, coding agents have become incredibly good at working with CLIs, and in fact they are far more comfortable working with CLI tools than MCP. With Composio's Universal CLI, your coding agents can talk to over 1000+ SaaS applications. With Linear, agents can create a new bug for team mobile, add a comment to issue lin-123, list all cycles for the design team, and more — all without worrying about authentication. This guide walks you through Composio Universal CLI and explains how you can connect it with coding agents like Claude Code, Codex, OpenCode, etc, for end-to-end Linear automation.

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Linear is a modern issue tracking and project planning tool for fast-moving teams. It helps streamline workflows, organize projects, and boost productivity.

32 Tools3 Triggers

Introduction

CLIs are eating MCPs. The industry is converging on the very same idea. MCPs for all their merit can be token hungry, slow, and unreliable for complex tool chaining. However, coding agents have become incredibly good at working with CLIs, and in fact they are far more comfortable working with CLI tools than MCP.

With Composio's Universal CLI, your coding agents can talk to over 1000+ SaaS applications. With Linear, agents can create a new bug for team mobile, add a comment to issue lin-123, list all cycles for the design team, and more — all without worrying about authentication.

This guide walks you through Composio Universal CLI and explains how you can connect it with coding agents like Claude Code, Codex, OpenCode, etc, for end-to-end Linear automation.

Also integrate Linear with

ChatGPTOpenAI Agents SDKClaude Agent SDKClaude CodeClaude CoworkCodexOpenCodeCursorVS CodeOpenClawHermesGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAI

What is Universal CLI and why use it?

The idea behind building the universal CLI is to give agents a single command interface to interact with all your external applications. Here's what you'll get with it:

  • Agent-friendly: Coding agents like Claude Code, Codex, and OpenCode can use CLI tools natively — no MCP setup required.
  • Authentication handled: Connect once via OAuth or API Key, and all CLI commands work with your credentials automatically.
  • Tool discovery: Search, inspect, and execute 20,000+ tools across 1000+ apps from one interface.
  • Trigger support: Use triggers to listen for events across your apps, powered by real-time webhooks or polling under the hood.
  • Type generation: Generate typed schemas for autocomplete and type safety in your projects.

Prerequisites

Install the Composio CLI, authenticate, and initialize your project:

bash
# Install the Composio CLI
curl -fsSL https://composio.dev/install | bash

# Authenticate with Composio
composio login

During login you'll be redirected to sign in page, finish the complete flow and you're all set.

Composio CLI authentication flow

Connecting Linear to Coding Agents via Universal CLI

Once it is installed, it's essentially done. Claude Code, Codex, OpenCode, OpenClaw, or any other agent will be able to access the CLI. A few steps to give agents access to your apps.

  1. Launch your Coding Agent — Claude Code, Codex, OpenCode, anything you prefer.
  2. Prompt it to "Authenticate with Linear"
  3. Complete the authentication and authorization flow and your Linear integration is all set.
  4. Start asking anything you want.

Universal CLI Commands for Linear

You can also manually execute CLI commands to interact with your Linear.

Connect your Linear account

Link your Linear account and verify the connection:

bash
# Connect your Linear account (opens OAuth flow)
composio connected-accounts link linear

# Verify the connection
composio connected-accounts list --toolkits linear

Discover Linear tools

Search and inspect available Linear tools:

bash
# List all available Linear tools
composio tools list --toolkit linear

# Search for Linear tools by action
composio tools search "linear"

# Inspect a tool's input schema
composio tools info LINEAR_CREATE_LINEAR_ATTACHMENT

Common Linear Actions

Create linear attachment — Creates a new attachment and associates it with a specific, existing linear issue

bash
composio tools execute LINEAR_CREATE_LINEAR_ATTACHMENT \
  --url "https://example.com/path/to/file.pdf" \
  --title "Design Mockup v2" \
  --issue_id "ENG-123" \
  --subtitle "Final version for review"

Create a comment — Creates a new comment on a specified linear issue

bash
composio tools execute LINEAR_CREATE_LINEAR_COMMENT \
  --body "This is a comment." \
  --issue_id "ENG-123"

Create linear issue — Creates a new issue in a specified linear project and team, requiring a title and description, and allowing for optional properties like assignee, state, priority, cycle, and due date

bash
composio tools execute LINEAR_CREATE_LINEAR_ISSUE \
  --title "Fix login button bug on homepage" \
  --team_id "T_TEAM123-4567-890a-bcde-f1234567890a"

Get create issue default params — Fetches a linear team's default issue estimate and state, useful for pre-filling new issue forms

bash
composio tools execute LINEAR_CREATE_LINEAR_ISSUE_DETAILS \
  --team_id "d4b8dfcc-399f-4b67-9684-1f2f7dd79a4b"

Set up Linear Triggers

Listen for events in real time using triggers:

Comment Received Trigger — Triggered when a comment is received

bash
# Find your connected account ID
composio connected-accounts list --toolkits linear

# Create a trigger
composio triggers create LINEAR_COMMENT_EVENT_TRIGGER \
  --connected-account-id <your-connected-account-id> \
  --trigger-config '{
  "team_id": "<string>"
}'

# Listen for trigger events in real time
composio triggers listen --toolkits linear --table

Issue Created Trigger — Triggered when a new issue is created

bash
# Find your connected account ID
composio connected-accounts list --toolkits linear

# Create a trigger
composio triggers create LINEAR_ISSUE_CREATED_TRIGGER \
  --connected-account-id <your-connected-account-id> \
  --trigger-config '{
  "team_id": "<string>"
}'

# Listen for trigger events in real time
composio triggers listen --toolkits linear --table

Issue Updated Trigger — Triggered when an issue is updated

bash
# Find your connected account ID
composio connected-accounts list --toolkits linear

# Create a trigger
composio triggers create LINEAR_ISSUE_UPDATED_TRIGGER \
  --connected-account-id <your-connected-account-id> \
  --trigger-config '{
  "team_id": "<string>"
}'

# Listen for trigger events in real time
composio triggers listen --toolkits linear --table

Generate Type Definitions

Generate typed schemas for Linear tools to get autocomplete and type safety in your project:

bash
# Auto-detect language
composio generate --toolkits linear

# TypeScript
composio ts generate --toolkits linear

# Python
composio py generate --toolkits linear

Tips & Tricks

  • Always inspect a tool's input schema before executing: composio tools info <TOOL_NAME>
  • Pipe output with jq for better readability: composio tools execute TOOL_NAME -d '{}' | jq
  • Set COMPOSIO_API_KEY as an environment variable for CI/CD pipelines
  • Use composio dev logs tools to inspect execution logs and debug issues

Next Steps

  • Try asking your coding agent to perform various Linear operations
  • Explore cross-app workflows by connecting more toolkits
  • Set up triggers for real-time automation
  • Use composio generate for typed schemas in your projects
TOOLS & TRIGGERS

Supported Tools and Triggers

Every Linear action and event your agent gets out of the box.

Create attachment

Creates a new attachment and associates it with a specific, existing Linear issue.

Add reaction to comment

Tool to add a reaction to an existing Linear comment.

Create a comment

Creates a new comment on a specified Linear issue.

Create linear issue

Creates a new issue in a specified Linear project and team, requiring team_id and title, and allowing optional properties like description, assignee, state, priority, cycle, and due date.

Create issue relation

Create a relationship between two Linear issues using the issueRelationCreate mutation.

Create a label

Creates a new label in Linear for a specified team, used to categorize and organize issues.

Create Project

Creates a new Linear project with specified name and team associations.

Create Project Milestone

Tool to create a project milestone in Linear with a name and optional target date and sort order.

Create Project Update

Tool to create a project status update post for a Linear project.

Delete issue

Archives an existing Linear issue by its ID, which is Linear's standard way of deleting issues; the operation is idempotent.

Download issue attachments

Downloads a specific attachment from a Linear issue; the `file_name` must include the correct file extension.

Get current user

Gets the currently authenticated user's ID, name, email, and other profile information — this is the account behind the API token, which may be a bot or service account rather than a human user.

Get cycles by team ID

Retrieves all cycles for a specified Linear team ID; cycles are time-boxed work periods (like sprints).

Get create issue default params

Fetches a Linear team's default issue estimate and state, useful for pre-filling new issue forms.

Get Linear issue

Retrieves an existing Linear issue's comprehensive details, including id, identifier, title, description, timestamps, state, team, creator, attachments, comments (with user info and timestamps, use issue.

Get Linear project

Retrieves a single Linear project by its unique identifier.

List issue drafts

Tool to list issue drafts.

List issues by team ID

Tool to list all issues for a specific Linear team, scoped by team ID.

Get all cycles

Retrieves all cycles (time-boxed sprint iterations) org-wide from the Linear account; no filters applied.

List Linear issues

Lists non-archived Linear issues; if project_id is not specified, issues from all accessible projects are returned.

Get labels

Retrieves labels from Linear.

List linear projects

Retrieves all projects from the Linear account.

List Linear states

Retrieves all workflow states for a specified team in Linear, representing the stages an issue progresses through in that team's workflow.

Get teams

Retrieves all teams with their members and projects.

List Linear users

Lists all workspace users (not team-scoped) with their IDs, names, emails, and active status.

Remove label from Linear issue

Removes a specified label from an existing Linear issue using their IDs; successful even if the label isn't on the issue.

Remove reaction from comment

Tool to remove a reaction on a comment.

Run Query or Mutation

Execute any GraphQL query or mutation against Linear's API.

Search Linear issues

Search Linear issues using full-text search across identifier, title, and description.

Update issue

Updates an existing Linear issue using its `issue_id`; requires at least one other attribute for modification, and all provided entity IDs (for state, assignee, labels, etc.

Update a comment

Tool to update an existing Linear comment's body text.

Update Project

Tool to update an existing Linear project.

FRAMEWORKS

How to build Linear MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Linear MCP with ChatGPT

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Linear MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Linear MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Linear MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Linear MCP with Claude Cowork

Codex logo

Codex

Use Linear MCP with Codex

Cursor logo

Cursor

Use Linear MCP with Cursor

OpenClaw logo

OpenClaw

Use Linear MCP with OpenClaw

Hermes logo

Hermes

Use Linear MCP with Hermes

Google ADK logo

Google ADK

Use Linear MCP with Google ADK

LangChain logo

LangChain

Use Linear MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Linear MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Linear MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Linear MCP with LlamaIndex

CrewAI logo

CrewAI

Use Linear MCP with CrewAI

OpenCode logo

OpenCode

Use Linear MCP with OpenCode

VS Code logo

VS Code

Use Linear MCP with VS Code

FAQ

Frequently asked questions

The Composio Universal CLI is a single command-line interface that lets coding agents and developers interact with 1000+ SaaS applications. It handles authentication, tool discovery, action execution, and trigger setup — all from the terminal, without needing to configure MCP servers.

Any coding agent that can run shell commands works with the Composio CLI — including Claude Code, Codex, OpenCode, OpenClaw, and others. Once the CLI is installed, agents automatically discover and use the composio commands to interact with Linear and other connected apps.

MCP servers require configuration and can be token-heavy for complex workflows. The CLI gives agents a direct, lightweight interface — no server setup needed. Agents simply call composio commands like any other shell tool. It's faster to set up, more reliable for multi-step tool chaining, and works natively with how coding agents already operate.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Linear data and credentials are handled as safely as possible. You can also bring your own OAuth credentials for full control.

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Karan skipped his own birthday party to fix our critical issue. It was 10pm and he diverted his Waymo to help us instead. This really sets the bar — it shows the commitment you need when users rely on your software.

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Harsha Gaddipati
Co-founder, Slashy

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it's immensely helped keep new users on the platform.

Abhi Arya
Abhi Arya
Co-founder, Opennote

We chose Composio over Pipedream because it delivered depth where it mattered — niche tools and tricky edge cases other platforms simply ignored. That gave us confidence to scale without compromising.

Nirman Dave
Nirman Dave
CEO, Zams

As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down managing agent auth would have been a death sentence.

Ryan Yu
Ryan Yu
Founder, Extra Thursday

Before Composio, adding tool integrations was slow and resource-intensive. Each one could take weeks of engineering time, and maintaining them meant constantly keeping up with API changes.

Tomisin Jenrola
Tomisin Jenrola
Founder & CEO, SwarmZero

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

Jerome Leclanche
Jerome Leclanche
Co-Founder, Ingram Technologies