Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add danielsimonjr/fzf-mcp --skill fzfgit clone --depth 1 https://github.com/danielsimonjr/fzf-mcpWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/danielsimonjr/fzf-mcp/fzf)<a href="https://agentmods.dev/skills/danielsimonjr/fzf-mcp/fzf"><img src="https://agentmods.dev/badge/skills/danielsimonjr/fzf-mcp/fzf/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/danielsimonjr/fzf-mcp/fzf"><img src="https://agentmods.dev/badge/skills/danielsimonjr/fzf-mcp/fzf.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00094 | $0.00716 |
| Opus 5 | $0.00047 | $0.00358 |
| Sonnet 5 | $0.00019 | $0.00143 |
| Haiku 4.5 | $0.00009 | $0.00072 |
Grade A, and why
fzf scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 31 lines — stays where its author put it; the contents beside it link to each section on GitHub.
fzf
A judgment layer over the fzf-mcp server's 3 tools — fuzzy, typo-tolerant matching backed by fzf, the command-line fuzzy finder. This skill adds no tools of its own: every action below is one of the server's existing MCP tools. Its job is to steer you toward the right tool for the shape of the input (a list you already have vs. a directory tree vs. file contents), and to flag when fzf is the wrong choice because an indexed/exact lookup would be faster.
Skill root: this skill ships inside the fzf-mcp plugin (repo danielsimonjr/fzf-mcp, skills/fzf/). Slash trigger: /fzf.
Tool map
| Tool | Purpose |
|---|---|
fuzzy_filter |
Rank/filter a candidate list you already have in hand (e.g. an array of package names, tool names, or prior search results) against a fuzzy query. No filesystem access. |
fuzzy_search_files |
Fuzzy file-name find, walking the filesystem recursively from a starting directory. |
fuzzy_search_content |
Fuzzy grep of file contents across a directory tree, optionally scoped by file pattern. |
Use fuzzy_filter when the candidates are already in memory (no need to touch disk). Use fuzzy_search_files / fuzzy_search_content when you need to discover files or matches by walking a directory — these are the two that pay the filesystem-walk cost.
If a tool isn't loaded, fetch its schema first: ToolSearch select:mcp__plugin_fzf-mcp_fzf-mcp__fuzzy_search_files.
fzf vs Everything
fzf = fuzzy/typo-tolerant matching that walks the filesystem live — works anywhere, including paths an index doesn't cover, but slower on large trees. Everything (everything-mcp, /everything skill) = instant, index-backed, best for exact/glob/regex file-name lookups on indexed drives. Prefer Everything for a known exact name or pattern; drop to fzf for approximate/fuzzy queries or for paths Everything doesn't index.
Gotcha: fzf walks the filesystem
fuzzy_search_files and fuzzy_search_content recurse the directory tree live — this is slow on huge trees (deep node_modules, large monorepos) compared to an indexed lookup. It's also the reason fzf is the right fallback for ~\Dropbox (which Everything does not index on this machine) — but Dropbox's on-demand ("online-only") file stubs are a known risk for filesystem walks in general (the same class of issue as verified iCloud/OneDrive stub gotchas elsewhere on this machine), so avoid walking Dropbox trees blind and prefer scoping the directory argument narrowly rather than searching from a Dropbox root.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago First seen · 31 lines · 94 tokens per session scan A 673ef23d8266
fzf is a skill published in the GitHub repository danielsimonjr/fzf-mcp (3 stars, last pushed 3d ago), licensed MIT. It adds 94 tokens to every session and 716 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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