Linear

Linear API integration with managed OAuth. Query and manage issues, projects, teams, cycles, and labels using GraphQL. Use this skill when users want to create, update, or query Linear issues, search for tasks, manage projects, or track work. For other third party apps, use the api-gateway skill (https://clawhub.ai/byungkyu/api-gateway). Requires network access and valid Maton API key.

Security Scan

The skill is internally consistent: it documents using a Maton-managed gateway to call Linear's GraphQL API and only requests a single MATON_API_KEY; the main remaining risk is trusting the third‑party Maton service that proxies OAuth tokens.

Purpose & Capability

Name/description (Linear API via managed OAuth) match the runtime instructions: all examples call Maton endpoints (gateway.maton.ai, ctrl.maton.ai) to proxy GraphQL requests to api.linear.app. Required env var (MATON_API_KEY) is appropriate for a gateway-based integration.

Instruction Scope

SKILL.md only instructs POSTing GraphQL queries to Maton endpoints, managing connections via ctrl.maton.ai, and setting MATON_API_KEY. It does not instruct reading local files, other env vars, or contacting unexpected endpoints.

Install Mechanism

No install spec or downloadable code is present (instruction-only), so nothing is written to disk or executed beyond normal HTTP requests—this is the lowest-risk install profile.

Credentials

Only MATON_API_KEY is required, which is proportionate for a gateway that performs OAuth on behalf of the user. Note: the key grants Maton access to proxied Linear operations, so the user must trust Maton's handling of tokens and data.

Persistence & Privilege

always is false and the skill is user-invocable; there is no indication it requests persistent system privileges or modifies other skills/config. Autonomous invocation is allowed (platform default) but not combined with other concerning privileges.

Assessment

This skill appears to be a straightforward set of instructions for using Maton's gateway to access Linear. Before installing or providing MATON_API_KEY: 1) Understand that the API key gives Maton the ability to act on your behalf against Linear (read/write depending on scopes) — review Maton's documentation, privacy policy, and token scope. 2) Verify the Maton endpoints (gateway.maton.ai, ctrl.maton.ai, maton.ai) and that the OAuth flow uses the official Linear connect URL returned for authorization. 3) Because the skill has no code to audit and no homepage, prefer to obtain Maton credentials only from the official Maton site and consider creating a limited-scope key or a revocable token. 4) If you need higher assurance, request the publisher/owner identity or a repository with code you can review; otherwise revoke the MATON_API_KEY when no longer needed.

Access the Linear API with managed OAuth authentication. Query and manage issues, projects, teams, cycles, labels, and comments using GraphQL.

Quick Start

# Get current user
python <<'EOF'
import urllib.request, os, json
data = json.dumps({'query': '{ viewer { id name email } }'}).encode()
req = urllib.request.Request('https://gateway.maton.ai/linear/graphql', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Base URL

https://gateway.maton.ai/linear/graphql

All requests use POST to the GraphQL endpoint. The gateway proxies requests to api.linear.app and automatically injects your OAuth token.

Authentication

All requests require the Maton API key in the Authorization header:

Authorization: Bearer $MATON_API_KEY

Environment Variable: Set your API key as MATON_API_KEY:

export MATON_API_KEY="YOUR_API_KEY"

Getting Your API Key

1. Sign in or create an account at maton.ai
2. Go to maton.ai/settings
3. Copy your API key

Connection Management

Manage your Linear OAuth connections at https://ctrl.maton.ai.

List Connections

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections?app=linear&status=ACTIVE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Create Connection

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'app': 'linear'}).encode()
req = urllib.request.Request('https://ctrl.maton.ai/connections', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Get Connection

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections/{connection_id}')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "connection": {
    "connection_id": "fda4dabb-9d62-47e3-9503-a2f29d0995df",
    "status": "ACTIVE",
    "creation_time": "2026-02-04T23:03:22.676001Z",
    "last_updated_time": "2026-02-04T23:03:51.239577Z",
    "url": "https://connect.maton.ai/?session_token=...",
    "app": "linear",
    "metadata": {}
  }
}

Open the returned url in a browser to complete OAuth authorization.

Delete Connection

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections/{connection_id}', method='DELETE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Specifying Connection

If you have multiple Linear connections, specify which one to use with the Maton-Connection header:

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'query': '{ viewer { id name } }'}).encode()
req = urllib.request.Request('https://gateway.maton.ai/linear/graphql', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
req.add_header('Maton-Connection', 'fda4dabb-9d62-47e3-9503-a2f29d0995df')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

If omitted, the gateway uses the default (oldest) active connection.

API Reference

Linear uses a GraphQL API. All operations are sent as POST requests with a JSON body containing the query field.

Viewer (Current User)

POST /linear/graphql
Content-Type: application/json

{"query": "{ viewer { id name email } }"}

Response:

{
  "data": {
    "viewer": {
      "id": "4933b394-c42f-4623-904f-355fc40a4858",
      "name": "Byungkyu Park",
      "email": "[e-mail]"
    }
  }
}

Organization

POST /linear/graphql
Content-Type: application/json

{"query": "{ organization { id name urlKey } }"}

Teams

List Teams

POST /linear/graphql
Content-Type: application/json

{"query": "{ teams { nodes { id name key } } }"}

Response:

{
  "data": {
    "teams": {
      "nodes": [
        {
          "id": "70c49a0d-6973-4563-a743-8504f1a5171b",
          "name": "Maton",
          "key": "MTN"
        }
      ]
    }
  }
}

Get Team

POST /linear/graphql
Content-Type: application/json

{"query": "{ team(id: \"TEAM_ID\") { id name key issues { nodes { id identifier title } } } }"}

Issues

List Issues

POST /linear/graphql
Content-Type: application/json

{"query": "{ issues(first: 10) { nodes { id identifier title state { name } priority createdAt } pageInfo { hasNextPage endCursor } } }"}

Response:

{
  "data": {
    "issues": {
      "nodes": [
        {
          "id": "565e2ee9-2552-48d8-bbf9-a8b79ca1baec",
          "identifier": "MTN-527",
          "title": "Shopify app verification",
          "state": { "name": "In Progress" },
          "priority": 0,
          "createdAt": "2026-02-03T07:49:31.675Z"
        }
      ],
      "pageInfo": {
        "hasNextPage": true,
        "endCursor": "4c7b33c8-dabf-47ce-9d30-7f286f9463be"
      }
    }
  }
}

Get Issue by ID or Identifier

POST /linear/graphql
Content-Type: application/json

{"query": "{ issue(id: \"MTN-527\") { id identifier title description state { name } priority assignee { name } team { key name } createdAt updatedAt } }"}

Filter Issues

Filter by state type:

POST /linear/graphql
Content-Type: application/json

{"query": "{ issues(first: 10, filter: { state: { type: { eq: \"started\" } } }) { nodes { id identifier title state { name type } } } }"}

Filter by title:

POST /linear/graphql
Content-Type: application/json

{"query": "{ issues(first: 10, filter: { title: { containsIgnoreCase: \"bug\" } }) { nodes { id identifier title } } }"}

Search Issues

POST /linear/graphql
Content-Type: application/json

{"query": "{ searchIssues(first: 10, term: \"shopify\") { nodes { id identifier title } } }"}

Create Issue

POST /linear/graphql
Content-Type: application/json

{"query": "mutation { issueCreate(input: { teamId: \"TEAM_ID\", title: \"New issue title\", description: \"Issue description\" }) { success issue { id identifier title state { name } } } }"}

Response:

{
  "data": {
    "issueCreate": {
      "success": true,
      "issue": {
        "id": "9dff693f-27d2-4656-9b2d-baa4a828dc83",
        "identifier": "MTN-528",
        "title": "New issue title",
        "state": { "name": "Backlog" }
      }
    }
  }
}

Update Issue

POST /linear/graphql
Content-Type: application/json

{"query": "mutation { issueUpdate(id: \"ISSUE_ID\", input: { title: \"Updated title\", priority: 2 }) { success issue { id identifier title priority } } }"}

Projects

List Projects

POST /linear/graphql
Content-Type: application/json

{"query": "{ projects(first: 10) { nodes { id name state createdAt } } }"}

Cycles

List Cycles

POST /linear/graphql
Content-Type: application/json

{"query": "{ cycles(first: 10) { nodes { id name number startsAt endsAt } } }"}

Labels

List Labels

POST /linear/graphql
Content-Type: application/json

{"query": "{ issueLabels(first: 20) { nodes { id name color } } }"}

Response:

{
  "data": {
    "issueLabels": {
      "nodes": [
        { "id": "510edbdf-9f6e-43a0-80e5-c3b3bd82e26f", "name": "Blocked", "color": "#eb5757" },
        { "id": "cb7a7ef2-d2d3-4da2-ad4e-7cea0f8a72c7", "name": "Feature", "color": "#BB87FC" },
        { "id": "c795d04c-24d2-4d20-b3c1-9f9f1ce7b017", "name": "Improvement", "color": "#4EA7FC" },
        { "id": "40ff69f9-4a93-40a2-b143-f3b94aa594b7", "name": "Bug", "color": "#EB5757" }
      ]
    }
  }
}

Workflow States

POST /linear/graphql
Content-Type: application/json

{"query": "{ workflowStates(first: 20) { nodes { id name type team { key } } } }"}

Response:

{
  "data": {
    "workflowStates": {
      "nodes": [
        { "id": "f21dfa65-7951-4742-a202-00ceb0ff6e9f", "name": "Backlog", "type": "backlog", "team": { "key": "MTN" } },
        { "id": "1ab9475f-eb91-4207-a5a3-1176e38b85be", "name": "Todo", "type": "unstarted", "team": { "key": "MTN" } },
        { "id": "ee724a62-0212-4b53-af67-08297a5ae132", "name": "In Progress", "type": "started", "team": { "key": "MTN" } },
        { "id": "427a9916-3849-4303-b982-f00f1d79c5ee", "name": "Done", "type": "completed", "team": { "key": "MTN" } },
        { "id": "363df32a-f22d-4083-8efb-b3615c019925", "name": "Canceled", "type": "canceled", "team": { "key": "MTN" } }
      ]
    }
  }
}

Users

POST /linear/graphql
Content-Type: application/json

{"query": "{ users(first: 20) { nodes { id name email active } } }"}

Comments

List Comments

POST /linear/graphql
Content-Type: application/json

{"query": "{ comments(first: 10) { nodes { id body createdAt issue { identifier } user { name } } } }"}

Create Comment

POST /linear/graphql
Content-Type: application/json

{"query": "mutation { commentCreate(input: { issueId: \"ISSUE_ID\", body: \"Comment text here\" }) { success comment { id body } } }"}

Pagination

Linear uses Relay-style cursor-based pagination with first/after and last/before arguments.

# First page
POST /linear/graphql
{"query": "{ issues(first: 10) { nodes { id identifier title } pageInfo { hasNextPage endCursor } } }"}

# Next page using endCursor
POST /linear/graphql
{"query": "{ issues(first: 10, after: \"CURSOR_VALUE\") { nodes { id identifier title } pageInfo { hasNextPage endCursor } } }"}

Response includes pageInfo:

{
  "data": {
    "issues": {
      "nodes": [...],
      "pageInfo": {
        "hasNextPage": true,
        "endCursor": "4c7b33c8-dabf-47ce-9d30-7f286f9463be"
      }
    }
  }
}

Code Examples

JavaScript

const response = await fetch('https://gateway.maton.ai/linear/graphql', {
  method: 'POST',
  headers: {
    'Authorization': `Bearer ${process.env.MATON_API_KEY}`,
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    query: `{ issues(first: 10) { nodes { id identifier title state { name } } } }`
  })
});
const data = await response.json();

Python

import os
import requests

response = requests.post(
    'https://gateway.maton.ai/linear/graphql',
    headers={
        'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}',
        'Content-Type': 'application/json'
    },
    json={
        'query': '{ issues(first: 10) { nodes { id identifier title state { name } } } }'
    }
)
data = response.json()

Notes

• Linear uses GraphQL exclusively (no REST API)
• Issue identifiers like MTN-527 can be used in place of UUIDs for the id parameter
• Priority values: 0 = No priority, 1 = Urgent, 2 = High, 3 = Medium, 4 = Low
• Workflow state types: backlog, unstarted, started, completed, canceled
• The GraphQL schema is introspectable at https://api.linear.app/graphql
• Use searchIssues(term: "...") for full-text search across issues
• Some mutations (delete, create labels/projects) may require additional OAuth scopes. If you receive a scope error, contact Maton support at [e-mail] with the specific operations/APIs you need and your use-case

Error Handling

Status	Meaning
400	Missing Linear connection or GraphQL validation error
401	Invalid or missing Maton API key
403	Insufficient OAuth scope for the operation
429	Rate limited
4xx/5xx	Passthrough error from Linear API

GraphQL errors are returned in the errors array:

{
  "errors": [
    {
      "message": "Invalid scope: `write` required",
      "extensions": {
        "type": "forbidden",
        "code": "FORBIDDEN",
        "statusCode": 403
      }
    }
  ]
}

Troubleshooting: API Key Issues

1. Check that the MATON_API_KEY environment variable is set:

echo $MATON_API_KEY

2. Verify the API key is valid by listing connections:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Troubleshooting: Invalid App Name

1. Ensure your URL path starts with linear. For example:

• Correct: https://gateway.maton.ai/linear/graphql
• Incorrect: https://gateway.maton.ai/graphql

Resources

• Linear API Overview
• Linear GraphQL Getting Started
• Linear GraphQL Schema (Apollo Studio)
• Linear API and Webhooks
• Maton Community
• Maton Support