fff: The fastest and the most accurate file search SDK for AI agents, Neovim, Rust, C, Python, Bun and NodeJS

by dmtrKovalenko · Agent Tool · ★ 11.2k

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

How to install fff

brew install dmtrKovalenko/fff/fff-mcp
codex mcp add fff -- "$(brew --prefix)/bin/fff-mcp"

Taken from the project's README on GitHub. Check the security audit before running it.

Security audit verdict: SAFE · quality 69/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

bunffffilesearchfzfgrepluaneovimneovim-pluginnodejspython

Quick Facts

Stars11,222
Forks479
LanguageRust
CategoryAgent Tool
LicenseMIT
Quality Score69/100
Open Issues95
Last Updated2026-11-05
Created2025-07-31
Platformsrust
Est. Tokens~31k

About fff

A file search toolkit for humans and AI agents. Really fast. Typo-resistant path and content search, frequency-ranked file access, a background watcher, and a lightweight in-memory content index. Way faster than CLIs like ripgrep and fzf in any long-running process that searches more than once.

Compatible Skills

These tools work well together with fff for enhanced workflows:

  • sidekick.nvim — semantic(0.47)+complementary+rare_topics+similar_pop (60%)
  • iwe — semantic(0.16)+complementary+rare_topics+same_lang+similar_pop+shared_platform (60%)
  • claudecode.nvim — semantic(0.46)+complementary+rare_topics+similar_pop (56%)
  • mcphub.nvim — semantic(0.33)+complementary+rare_topics+similar_pop (56%)

fff alternative? Top 6 similar tools

Looking for a fff alternative? If you're comparing fff with other agent tool tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

  • oh-my-pi by can1357 · ⭐ 37.9k

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    This open-source curriculum introduces the fundamentals of Model Context Protocol (MCP) through real-world, cr

  • cocoindex-code by cocoindex-io · ⭐ 3.0k

    A super light-weight embedded code search engine CLI (AST based) that just works - improves speed and efficie

  • sidekick.nvim by folke · ⭐ 2.8k

    Your Neovim AI sidekick

  • cli by googleworkspace · ⭐ 32.1k

    Google Workspace CLI — one command-line tool for Drive, Gmail, Calendar, Sheets, Docs, Chat, Admin, and more.

  • gpt-researcher by assafelovic · ⭐ 30.0k

    An autonomous agent that conducts deep research on any data using any LLM providers

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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