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How to cut agent tokens with semantic page snapshots with Open Web Bridge

Use read_page refs and since_last diffs so agents click by reference and only see what changed.

Short answer: Install the bundled skill with npx skills add woniu9524/open-web-bridge -g -y; then Have the agent call read_page to get @eN refs; use click and fill with those refs. All steps.

Who it is forA developer whose browser agent runs out of context on long sessions.

The problemFull page dumps drown an agent in tokens.

The outcomeStable element refs and change-only snapshots that keep sessions small.

What you need first

  • Node.js and npm
  • Chrome with the bundled MV3 extension
  • An agent with shell access

Steps

  1. Install the bundled skill with npx skills add woniu9524/open-web-bridge -g -y
  2. Have the agent call read_page to get @eN refs
  3. Use click and fill with those refs
  4. Use since_last to read only changes

Prompt for your agent

With open-web-bridge, read <url> using read_page, fill the form fields by @eN ref, and use since_last after submitting. Report the change and confirm you did not re-read the full page.

Caveat. Refs are tied to the current page state, so take a fresh snapshot after navigation.

Use this in your AI agent

Ask your agent

Using the Deduped MCP, get the setup steps for woniu9524/open-web-bridge and "Cut agent tokens with semantic page snapshots"

Add Deduped to Claude Code once

claude mcp add --transport http deduped https://dedupedai.com/mcp

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