Linear

Quick start

Always invoke through bash {baseDir}/scripts/invoke.sh — never call mcporter directly. The wrapper seeds the OAuth vault from the env-supplied tokens when needed, then calls mcporter.

bash {baseDir}/scripts/invoke.sh call maverick-linear.list_issues team=ENG limit:5
bash {baseDir}/scripts/invoke.sh call maverick-linear.create_issue title="Bug: pagination breaks" teamId=ENG
bash {baseDir}/scripts/invoke.sh call maverick-linear.create_comment issueId=ABC-123 body="Fixed in PR #456"

For structured output (also surfaces transport errors as JSON envelopes — workaround for mcporter #153):

bash {baseDir}/scripts/invoke.sh call --output json maverick-linear.list_issues team=ENG | jq '.result.content'

Discover available tools and schemas:

bash {baseDir}/scripts/invoke.sh list maverick-linear --schema

Safety

Write operations (create_issue, update_issue, create_comment, label/cycle/project changes, etc.) modify Linear work items visible to your team. Confirm clear user intent before invoking write tools — read tools (list_*, get_*) are safe to call freely while exploring. Review Linear activity after first use to verify behavior matches expectations.

Authentication

Tokens are provisioned and rotated automatically. If a call returns HTTP 401 that doesn't recover within a few seconds, the OAuth grant has been revoked — re-authorize the integration to refresh credentials.

Data flow

Tool calls travel to Linear's hosted MCP service at https://mcp.linear.app/mcp over HTTPS, authenticated via OAuth. Linear sees the issue/project/comment data referenced by each call. Use this skill for Linear-related work only; do not pass unrelated sensitive content through these tools.

Dependencies

• mcporter (github.com/steipete/mcporter) — MCP CLI used to invoke Linear's hosted MCP server. Auto-installed via npm install -g --ignore-scripts mcporter if missing on PATH (see install spec in frontmatter). The install spec uses unpinned mcporter (npm latest); operators with strict supply-chain controls should override the install to pin a specific version (e.g. mcporter@\x3Cversion>).
• jq (stedolan.github.io/jq) — JSON processor used by the vault initializer. System dependency; install via your OS package manager (apt install jq, brew install jq, etc.).
• flock (part of util-linux) — file locking used to serialize concurrent vault writes. Available by default on Linux; on macOS install via brew install flock.