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Linear

Manage Linear issues, projects, and teams via the GraphQL API. Create, update, search, and organize issues. Uses API key auth (no OAuth needed). All operations via curl — no dependencies.

Skill metadata


Source	Bundled (installed by default)
Path	`skills/productivity/linear`
Version	`1.0.0`
Author	Hermes Agent
License	MIT
Tags	`Linear`, `Project Management`, `Issues`, `GraphQL`, `API`, `Productivity`

Reference: full SKILL.md

信息

The following is the complete skill definition that Hermes loads when this skill is triggered. This is what the agent sees as instructions when the skill is active.

Linear — Issue & Project Management

Manage Linear issues, projects, and teams directly via the GraphQL API using curl. No MCP server, no OAuth flow, no extra dependencies.

Setup

Get a personal API key from Linear Settings > API > Personal API keys
Set LINEAR_API_KEY in your environment (via hermes setup or your env config)

API Basics

Endpoint: https://api.linear.app/graphql (POST)
Auth header: Authorization: $LINEAR_API_KEY (no "Bearer" prefix for API keys)
All requests are POST with Content-Type: application/json
Both UUIDs and short identifiers (e.g., ENG-123) work for issue(id:)

Base curl pattern:

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ viewer { id name } }"}' | python3 -m json.tool

Workflow States

Linear uses WorkflowState objects with a type field. 6 state types:

Type	Description
`triage`	Incoming issues needing review
`backlog`	Acknowledged but not yet planned
`unstarted`	Planned/ready but not started
`started`	Actively being worked on
`completed`	Done
`canceled`	Won't do

Each team has its own named states (e.g., "In Progress" is type started). To change an issue's status, you need the stateId (UUID) of the target state — query workflow states first.

Priority values: 0 = None, 1 = Urgent, 2 = High, 3 = Medium, 4 = Low

Common Queries

Get current user

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ viewer { id name email } }"}' | python3 -m json.tool

List teams

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ teams { nodes { id name key } } }"}' | python3 -m json.tool

List workflow states for a team

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ workflowStates(filter: { team: { key: { eq: \"ENG\" } } }) { nodes { id name type } } }"}' | python3 -m json.tool

List issues (first 20)

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ issues(first: 20) { nodes { identifier title priority state { name type } assignee { name } team { key } url } pageInfo { hasNextPage endCursor } } }"}' | python3 -m json.tool

List my assigned issues

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ viewer { assignedIssues(first: 25) { nodes { identifier title state { name type } priority url } } } }"}' | python3 -m json.tool

Get a single issue (by identifier like ENG-123)

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ issue(id: \"ENG-123\") { id identifier title description priority state { id name type } assignee { id name } team { key } project { name } labels { nodes { name } } comments { nodes { body user { name } createdAt } } url } }"}' | python3 -m json.tool

Search issues by text

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ issueSearch(query: \"bug login\", first: 10) { nodes { identifier title state { name } assignee { name } url } } }"}' | python3 -m json.tool

Filter issues by state type

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ issues(filter: { state: { type: { in: [\"started\"] } } }, first: 20) { nodes { identifier title state { name } assignee { name } } } }"}' | python3 -m json.tool

Filter by team and assignee

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ issues(filter: { team: { key: { eq: \"ENG\" } }, assignee: { email: { eq: \"user@example.com\" } } }, first: 20) { nodes { identifier title state { name } priority } } }"}' | python3 -m json.tool

List projects

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ projects(first: 20) { nodes { id name description progress lead { name } teams { nodes { key } } url } } }"}' | python3 -m json.tool

List team members

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ users { nodes { id name email active } } }"}' | python3 -m json.tool

List labels

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ issueLabels { nodes { id name color } } }"}' | python3 -m json.tool

Common Mutations

Create an issue

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "query": "mutation($input: IssueCreateInput!) { issueCreate(input: $input) { success issue { id identifier title url } } }",
    "variables": {
      "input": {
        "teamId": "TEAM_UUID",
        "title": "Fix login bug",
        "description": "Users cannot login with SSO",
        "priority": 2
      }
    }
  }' | python3 -m json.tool

Update issue status

First get the target state UUID from the workflow states query above, then:

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "mutation { issueUpdate(id: \"ENG-123\", input: { stateId: \"STATE_UUID\" }) { success issue { identifier state { name type } } } }"}' | python3 -m json.tool

Assign an issue

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "mutation { issueUpdate(id: \"ENG-123\", input: { assigneeId: \"USER_UUID\" }) { success issue { identifier assignee { name } } } }"}' | python3 -m json.tool

Set priority

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "mutation { issueUpdate(id: \"ENG-123\", input: { priority: 1 }) { success issue { identifier priority } } }"}' | python3 -m json.tool

Add a comment

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "mutation { commentCreate(input: { issueId: \"ISSUE_UUID\", body: \"Investigated. Root cause is X.\" }) { success comment { id body } } }"}' | python3 -m json.tool

Set due date

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "mutation { issueUpdate(id: \"ENG-123\", input: { dueDate: \"2026-04-01\" }) { success issue { identifier dueDate } } }"}' | python3 -m json.tool

Add labels to an issue

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "mutation { issueUpdate(id: \"ENG-123\", input: { labelIds: [\"LABEL_UUID_1\", \"LABEL_UUID_2\"] }) { success issue { identifier labels { nodes { name } } } } }"}' | python3 -m json.tool

Add issue to a project

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "mutation { issueUpdate(id: \"ENG-123\", input: { projectId: \"PROJECT_UUID\" }) { success issue { identifier project { name } } } }"}' | python3 -m json.tool

Create a project

curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "query": "mutation($input: ProjectCreateInput!) { projectCreate(input: $input) { success project { id name url } } }",
    "variables": {
      "input": {
        "name": "Q2 Auth Overhaul",
        "description": "Replace legacy auth with OAuth2 and PKCE",
        "teamIds": ["TEAM_UUID"]
      }
    }
  }' | python3 -m json.tool

Pagination

Linear uses Relay-style cursor pagination:

# First page
curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ issues(first: 20) { nodes { identifier title } pageInfo { hasNextPage endCursor } } }"}' | python3 -m json.tool

# Next page — use endCursor from previous response
curl -s -X POST https://api.linear.app/graphql \
  -H "Authorization: $LINEAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ issues(first: 20, after: \"CURSOR_FROM_PREVIOUS\") { nodes { identifier title } pageInfo { hasNextPage endCursor } } }"}' | python3 -m json.tool

Default page size: 50. Max: 250. Always use first: N to limit results.

Filtering Reference

Comparators: eq, neq, in, nin, lt, lte, gt, gte, contains, startsWith, containsIgnoreCase

Combine filters with or: [...] for OR logic (default is AND within a filter object).

Typical Workflow

Query teams to get team IDs and keys
Query workflow states for target team to get state UUIDs
List or search issues to find what needs work
Create issues with team ID, title, description, priority
Update status by setting stateId to the target workflow state
Add comments to track progress
Mark complete by setting stateId to the team's "completed" type state

Rate Limits

5,000 requests/hour per API key
3,000,000 complexity points/hour
Use first: N to limit results and reduce complexity cost
Monitor X-RateLimit-Requests-Remaining response header

Important Notes

Always use terminal tool with curl for API calls — do NOT use web_extract or browser
Always check the errors array in GraphQL responses — HTTP 200 can still contain errors
If stateId is omitted when creating issues, Linear defaults to the first backlog state
The description field supports Markdown
Use python3 -m json.tool or jq to format JSON responses for readability

Skill metadata​

Reference: full SKILL.md​

Linear — Issue & Project Management

Setup​

API Basics​

Workflow States​

Common Queries​

Get current user​

List teams​

List workflow states for a team​

List issues (first 20)​

List my assigned issues​

Get a single issue (by identifier like ENG-123)​

Search issues by text​

Filter issues by state type​

Filter by team and assignee​

List projects​

List team members​

List labels​

Common Mutations​

Create an issue​

Update issue status​

Assign an issue​

Set priority​

Add a comment​

Set due date​

Add labels to an issue​

Add issue to a project​

Create a project​

Pagination​

Filtering Reference​

Typical Workflow​

Rate Limits​

Important Notes​