glance.sh plugin for Claude Code

Claude Code plugin that adds glance.sh screenshot tools via MCP.

What it does

Adds two MCP tools:

• glance — creates/reuses a live session and returns a URL like https://glance.sh/s/<id>
• glance_wait — waits for the next pasted image and returns Screenshot: https://glance.sh/<token>.<ext>

The server keeps a background SSE listener alive, reconnects automatically, and refreshes sessions before they expire.

Install

Recommended (npm-backed marketplace plugin):

/plugin marketplace add modem-dev/glance-agent-plugins
/plugin install glance-claude@glance-agent-plugins

This plugin is distributed as @modemdev/glance-claude and installed through Claude Code's plugin marketplace flow.

Local development (plugin dir)

From this repo root:

claude --plugin-dir ./agent-plugins/claude

Or from inside agent-plugins/:

claude --plugin-dir ./claude

Verify

1. Run /mcp and confirm a glance server is connected.
2. Ask Claude to call the glance tool.
3. Open the returned https://glance.sh/s/<id> URL and paste an image.
4. Ask Claude to call glance_wait.
5. Confirm Claude receives Screenshot: <url>.

Update / remove

• Update: /plugin update glance-claude
• Remove: /plugin uninstall glance-claude

If you have multiple plugins with the same name from different marketplaces, use the fully qualified form (glance-claude@glance-agent-plugins).

Publishing (maintainers)

Releases are automated via GitHub Actions.

Prerequisite: configure NPM_TOKEN in the glance-agent-plugins repository with publish access to @modemdev/glance-claude.

1. Bump version in both:
   • claude/package.json
   • claude/.claude-plugin/plugin.json
2. Commit and push to main.
3. Create and push a matching tag:

git tag claude-v0.1.0
git push origin claude-v0.1.0

The Release claude package workflow validates tag/version alignment, checks for already-published versions, runs npm pack --dry-run, and publishes with npm provenance.

How it works

Claude calls glance
  └─▶ MCP server POST /api/session
  └─▶ returns session URL

Claude calls glance_wait
  └─▶ waits for SSE image event

User pastes image at /s/<id>
  └─▶ glance.sh emits image event
  └─▶ tool returns Screenshot: <url>

Requirements

• Claude Code with plugin support
• Node.js runtime available to Claude Code (for stdio MCP server)

Configuration

Optional environment variable:

• GLANCE_BASE_URL (default: https://glance.sh)