1Password/GitHub/1password-claude-plugin
- GitHub/Star count: 3 (checked 2026-09-30 Wed)
- Claude/Code/Plugin for 1Password/Environments, built by 1Password. The repo is its own Claude/Code/Plugin/Marketplace:
/plugin marketplace add 1Password/1password-claude-plugin, then /plugin install 1password@1password. - Three pieces:
- a
PreToolUse Claude/Code/Hook that checks, before every Bash command, that each 1Password-mounted .env exists, is a named pipe, and is switched on in 1Password. It blocks the command when one is not, and fails open when 1Password or sqlite3 is missing. - a
1password-environments skill carrying the import-and-mount workflow, which the MCP server's own docs leave out .mcp.json that launches the local 1password-mcp server from 1Password/Environment/MCP. It has the same eight tools as 1Password/GitHub/1password-codex-plugin.
- macOS and Linux only. On Windows the hook exits without a decision, and the skill falls back to
op run --environment=<id> (1Password/Dev/op/run) because Environments has no local .env mounts there. - The GitHub description still calls it "a Claude desktop extension (MCPB) for macOS". That fits the first commit, a June 2026 port of 1Password's kiro.dev plugin to MCPB. By September it had become a Claude Code plugin, and no MCPB bundle remains in the repo.
- Written in Bash.