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+---
+name: linear
+description: 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.
+version: 1.0.0
+author: Hermes Agent
+license: MIT
+prerequisites:
+  env_vars: [LINEAR_API_KEY]
+  commands: [curl]
+metadata:
+  hermes:
+    tags: [Linear, Project Management, Issues, GraphQL, API, Productivity]
+---
+
+# 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
+
+1. Get a personal API key from **Linear Settings > API > Personal API keys**
+2. 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:
+```bash
+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
+```bash
+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
+```bash
+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
+```bash
+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)
+```bash
+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
+```bash
+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)
+```bash
+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
+```bash
+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
+```bash
+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
+```bash
+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
+```bash
+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
+```bash
+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
+```bash
+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
+```bash
+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:
+```bash
+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
+```bash
+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
+```bash
+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
+```bash
+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
+```bash
+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
+```bash
+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
+```bash
+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
+```bash
+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:
+
+```bash
+# 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
+
+1. **Query teams** to get team IDs and keys
+2. **Query workflow states** for target team to get state UUIDs
+3. **List or search issues** to find what needs work
+4. **Create issues** with team ID, title, description, priority
+5. **Update status** by setting `stateId` to the target workflow state
+6. **Add comments** to track progress
+7. **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