What is Binder AGENTS.md?

Project instructions for Binder, a local-first knowledge base that synchronizes Markdown files in both directions and includes an editor connection, command-line tool, and server interfaces. It documents Binder's TypeScript, Bun, SQLite, and monorepo setup; a monorepo is one repository containing multiple related packages.

Use it when developing Binder, navigating its packages, running tests or builds, changing database code, or working on its editor and command-line features.

It gives coding agents the project structure, tools, testing expectations, and development rules needed to work safely in Binder.

How mpazik/Binder configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to mpazik/Binder. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/mpazik/Binder/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/mpazik/Binder

Made for: Codex, OpenCode.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/mpazik/binder/agents-md/github.svg)](https://agentmods.dev/instructions/mpazik/binder/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/mpazik/binder/agents-md"><img src="https://agentmods.dev/badge/instructions/mpazik/binder/agents-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/mpazik/binder/agents-md"><img src="https://agentmods.dev/badge/instructions/mpazik/binder/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 655 This file is loaded in full into every session.

When invoked 655 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00655	$0.00655
Opus 5.5	$0.00262	$0.00262
Sonnet 5.5	$0.00131	$0.00131
Haiku 4.5	$0.00065	$0.00065

Measured 2mo ago against content hash 0467468672cc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Binder AGENTS.md 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 2mo 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.

AGENTS.md · 52 lines

How it starts

The opening of the file, as written. The whole thing — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Binder

Binder is a Local-first knowledge base with bidirectional Markdown sync, editor integration (LSP), MCP server, and CLI.

Status: Early development — APIs and data formats may change. Breaking changes are allowed.

Tech Stack

TypeScript everywhere for type safety and better developer tooling
Bun for development, testing, building, and package management
Node.js 22+ as the production runtime (built CLI runs via node)
SQLite as a database for both local and production (bun:sqlite in dev, better-sqlite3 in production)
Drizzle ORM for type-safe database operations and migrations
Zod for runtime schema validation
VS Code Language Server Protocol for editor integration and diagnostics
Yargs for CLI argument parsing

Monorepo Structure

Bun workspaces monorepo with three packages under packages/:

@binder.do/cli — Main entry point. Contains the CLI, LSP server, MCP server, Markdown document sync/diffing, schema loading, validation logic, and LLM integration (via @mariozechner/pi-ai).
@binder/repo — Knowledge graph engine. Entity/relationship storage, transaction processing, changeset computation, filtering. The @binder/repo/local sub-entry provides workspace bootstrap: config loading, path resolution, and init/open for using binder as a library.
@binder/utils — Shared utilities. Pure helpers for arrays, strings, encoding, error handling etc.

Testing

Unit tests — bun test runs unit tests under each package's src/ directory.
E2E tests — bun test:e2e runs end-to-end smoke tests under packages/cli/tests/. These spin up temporary workspaces, seed data, and exercise CLI, LSP, and MCP workflows against a real runtime.

Development

Dev Instance

Two binder instances exist in the project. Use the right one:

bun run dev -- dev instance (.binder-dev/ data). Use for experimentation, testing, inspecting data.
The binder tool / CLI -- production instance. For reading docs and updating task records.

Read the full file on GitHub · 52 lines

Changes

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.

2mo ago First seen · 52 lines · 655 tokens per session scan A 0467468672cc

Subscribe to this mod's changes

Binder AGENTS.md is an instructions file published in the GitHub repository mpazik/Binder (40 stars, last pushed 19d ago), licensed MIT. It adds 655 tokens to every session, about $0.0026 per session on Opus 5.5. 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 2026-08-30.

Databases agent-memory cli knowledge-base knowledge-graph local-first lsp

Binder AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
Binder AGENTS.mdmpazik/Binder	Instructions file	40	19d ago	MIT	A	655	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	2,022	GitHub Copilot

Binder: Instructions file for Codex