Open Knowledge Format for AI agents.

Turn docs into agent-readable knowledge bundles.

OKF bundles | MCP server | local-first | no LLM key | Git-diffable context

Use with agents | Create a bundle | CLI install | Why OKF | More clients

---

Agents are bad at reading docs when the only options are "paste everything" or "trust a hidden vector index".

okfy converts documentation websites and local Markdown folders into Open Knowledge Format v0.1-conformant bundles: typed Markdown concept files with frontmatter, reserved navigation files, source URLs, internal links, backlinks, and a read-only MCP server.

Use it when you want Claude, Codex, Cursor, or another MCP-capable agent to search your docs, read only the relevant pages, traverse neighbors, and cite sources without dumping the whole docs site into context.

Use With Agents

okfy is meant to sit behind your coding agent as a local MCP server. You create an OKF bundle once, then Claude, Codex, Cursor, or any MCP client can search and read that bundle on demand.

Create a bundle from a docs site:

npx -y okfy-ai crawl https://docs.stripe.com/checkout --out ./stripe-checkout-okf --max-pages 25
npx -y okfy-ai validate ./stripe-checkout-okf

Then connect it to your agent.

Claude Code

claude mcp add --transport stdio stripe-okf -- npx -y okfy-ai serve ./stripe-checkout-okf --mcp

Claude Desktop Or Cursor

Add this to claude_desktop_config.json, .cursor/mcp.json, or any client that accepts mcpServers JSON:

{
  "mcpServers": {
    "stripe-okf": {
      "command": "npx",
      "args": ["-y", "okfy-ai", "serve", "./stripe-checkout-okf", "--mcp"]
    }
  }
}

Codex

Add this to ~/.codex/config.toml or a trusted project config:

[mcp_servers.stripe_okf]
command = "npx"
args = ["-y", "okfy-ai", "serve", "./stripe-checkout-okf", "--mcp"]
startup_timeout_sec = 20
tool_timeout_sec = 60
enabled = true

Now ask:

Use the stripe-okf MCP server. Search for Checkout Sessions, read the most relevant concepts, inspect neighbors if needed, and explain the minimum backend flow with source URLs.

More setup details: docs/mcp-clients.md.

Create A Bundle

Docs website:

npx -y okfy-ai crawl https://docs.stripe.com/checkout --out ./stripe-checkout-okf --max-pages 25
npx -y okfy-ai validate ./stripe-checkout-okf
npx -y okfy-ai inspect ./stripe-checkout-okf

Local Markdown:

npx -y okfy-ai import ./docs --out ./docs-okf --source-name "Project docs" --force
npx -y okfy-ai validate ./docs-okf

The MCP command always serves an existing bundle:

npx -y okfy-ai serve ./docs-okf --mcp

Do not run serve --mcp as a normal interactive terminal session. MCP clients start it as a subprocess and communicate over stdin/stdout.

Optional CLI Install

You do not need global install for MCP configs. npx -y okfy-ai ... is usually better because the MCP client can launch okfy directly.

Install only if you want shorter local commands:

npm install -g okfy-ai
okfy demo

okfy-ai is the npm package name. okfy is the installed CLI command.

Package: okfy-ai on npm

Requires Node.js 20+.

After installing, this MCP config is equivalent:

{
  "mcpServers": {
    "docs-okf": {
      "command": "okfy",
      "args": ["serve", "./docs-okf", "--mcp"]
    }
  }
}

Demo

npx -y okfy-ai demo

The offline demo validates the bundled OKF fixture and prints a ready MCP config.

Expected shape:

OKF bundle valid
Concepts: 6
Links: 10
Broken links: 0
MCP config:

What You Get

docs site or Markdown folder
  -> OKF bundle: Markdown files + YAML frontmatter + links
  -> MCP server: search_concepts, read_concept, get_neighbors
  -> source-backed agent answers

Output	Why it matters
Plain Markdown concepts	Humans can read, review, diff, and commit the knowledge.
OKF frontmatter	Agents get type, title, description, tags, source, and timestamp.
Links and backlinks	Agents can traverse related docs instead of reading everything.
MCP stdio server	Local clients can search and read the bundle with no hosted index.
Deterministic validation	Malformed concept docs fail; broken links and missing indexes warn.

MCP Tools

Tool	Purpose
bundle_summary	Show bundle stats and validation status.
search_concepts	Search concept previews by query, type, or tags.
read_concept	Read one concept body, frontmatter, links, backlinks, and source.
get_neighbors	Traverse outbound links and backlinks around a concept.
list_types	List concept types and counts.
list_tags	List tags and counts.

The server is read-only in v0.1. okfy serve --mcp writes MCP JSON-RPC to stdout, so launch it through an MCP client rather than as a normal terminal command.

Bundle Format

---
type: "Guide"
title: "Import Local Markdown"
description: "Convert a local Markdown folder into an OKF bundle."
resource: "guides/import-local-markdown.md"
tags:
  - "okfy"
  - "import"
timestamp: "2026-06-14T00:00:00.000Z"
---

# Import Local Markdown

Run `okfy import <path> --out <dir>`.

Each non-reserved source page or file becomes one concept in v0.1. index.md and log.md are reserved OKF files, not concepts. Generated indexes are plain Markdown directory listings with no concept frontmatter, so concept counts, type counts, tag counts, search results, graph nodes, backlinks, and read_concept all exclude reserved files.

Validation follows Google OKF v0.1 conformance rules:

• Error: non-reserved .md concept missing parseable YAML frontmatter.
• Error: concept frontmatter missing non-empty string type.
• Error: present index.md or log.md does not follow reserved-file structure.
• Warning: broken internal link, missing folder index, or optional-field shape issue.

Unknown concept types, extra frontmatter keys, missing optional fields, broken links, and missing indexes do not make a bundle invalid.

Why OKF

Most RAG systems hide knowledge inside an index. That can work, but it is hard to inspect, review, or ship with a repo.

OKF keeps knowledge as typed, linked Markdown files:

• humans can read it
• Git can diff it
• agents can search, read, and traverse it through MCP
• teams can keep source URLs and provenance visible

llms.txt is a useful entry point. OKF is a fuller bundle: one concept per file, typed frontmatter, internal links, backlinks, and progressive disclosure for agents.

Security Defaults

• Crawls respect robots.txt by default.
• Crawls stay same-origin by default.
• Page count, depth, response size, and concurrency are capped.
• Private network URL literals and redirects to private targets are rejected by default for URL crawls.
• Preflight DNS-resolved private targets are rejected before fetch; fetch-time DNS is not IP-pinned.
• --force refuses unsafe output directories such as ., /, the home dir, repo root, input path, input parent, and symlink output dirs unless an explicit dangerous override is provided.
• HTML and Markdown are treated as text. Scripts are not executed.
• MCP tools are read-only in v0.1.

Commands

okfy crawl <url> --out <dir>
okfy import <path> --out <dir>
okfy validate <bundle>
okfy inspect <bundle>
okfy serve <bundle> --mcp
okfy demo

Common options:

okfy crawl https://docs.example.com --out ./docs-okf --max-pages 100 --max-depth 4
okfy import ./docs --out ./docs-okf --source-name "Project docs" --force
okfy validate ./docs-okf --json
okfy serve ./docs-okf --mcp --max-result-chars 12000

Examples

• examples/local-markdown: offline input fixture.
• examples/bundles/okfy-docs: committed OKF bundle used by okfy demo.
• examples/bundles/stripe-checkout-small: small saved Stripe Checkout sample.
• examples/README.md: commands, expected counts, validation status, and suggested agent questions.

Run From Source

Use this path when developing okfy itself:

git clone https://github.com/0dust/OKFy.git
cd OKFy
pnpm install
pnpm build
pnpm demo

Before sending a PR:

pnpm lint
pnpm typecheck
pnpm test
pnpm build
pnpm demo

Keep generated OKF output deterministic so bundle diffs stay reviewable.

Current Limits

• No GitHub repo URL importer yet. Use a local checkout or docs folder.
• One source page or file becomes one concept.
• HTML cleanup quality varies by docs site.
• MCP support is stdio-first.
• Search is deterministic lexical search, not embeddings.

Roadmap

• GitHub repo import.
• Docusaurus, Mintlify, and MkDocs adapters.
• Heading-based concept splitting for long pages.
• Optional LLM enrichment for better descriptions and tags.
• More real-world example bundles.

License

MIT. See LICENSE.