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fieldtheory-cli-bookmarks — Claude Code skill: bookmark search

Use Field Theory CLI through an agent to sync, search, and classify X/Twitter bookmarks. Handy when you want to query saved posts without leaving your coding workflow.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add reason-machines/trending-skills --skill fieldtheory-cli-bookmarks -a claude-code
Open on GitHub

What fieldtheory-cli-bookmarks does

The skill gives an agent access to ft commands for updating a local bookmark collection, searching post text, filtering by author or category, and opening individual entries. Classification can use an LLM or regex rules. By default, the CLI keeps its files in ~/.ft-bookmarks/; set FT_DATA_DIR to use another location.

The CLI requires Node.js 20+. Chrome-based sync also needs Google Chrome signed in to X/Twitter, and that mode is listed for macOS. Linux and Windows use OAuth instead. Install the CLI with npm install -g fieldtheory, then run ft sync. OAuth setup uses ft auth followed by ft sync --api; LLM-based classification requires access to an LLM.

What it helps with

  • sync new X/Twitter bookmarks to local storage
  • search saved posts by topic or text
  • filter bookmarks by author, category, or date
  • classify saved posts with an LLM or regex
  • inspect bookmark counts by topic and author

Example prompts for the agent

  • Sync my new X bookmarks and find posts about Rust.
  • Search my bookmarks for distributed systems and summarize the results.
  • List my research bookmarks from 2025.

How to install fieldtheory-cli-bookmarks

1Skills CLI (Vercel)

npx skills add reason-machines/trending-skills --skill fieldtheory-cli-bookmarks -a claude-code

2Manually: put the files in place

~/.claude/skills/fieldtheory-cli-bookmarks/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/fieldtheory-cli-bookmarks/

Step by step, with commands for each platform: How to install skills in Claude Code: five ways

Questions about fieldtheory-cli-bookmarks

How do I install fieldtheory-cli-bookmarks in Claude Code?

Run npx skills add reason-machines/trending-skills --skill fieldtheory-cli-bookmarks -a claude-code. The skill file is located at ~/.claude/skills/fieldtheory-cli-bookmarks/SKILL.md.

What does fieldtheory-cli-bookmarks do?

It lets an agent use Field Theory CLI to sync, search, and classify X/Twitter bookmarks. You can also filter entries and inspect collection stats.

What do I need for Chrome-based bookmark sync?

You need Node.js 20+ and Google Chrome signed in to X/Twitter. This sync mode is listed for macOS; Linux and Windows can use OAuth with ft auth and ft sync --api.

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