What is mcp-ts AGENTS.md?

A TypeScript monorepo for building MCP applications. A monorepo is one repository containing several related packages, including a client SDK, a tool router and sandboxed programmatic tool execution.

Building MCP clients and servers, storing sessions across different backends, adding OAuth 2.1, connecting React or Vue interfaces, adapting agents and running tools in a sandbox.

It groups the shared building blocks for MCP clients and servers in one codebase. Tool routing can help avoid loading every available tool description into an AI model at once.

How zonlabs/mcp-ts configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to zonlabs/mcp-ts. 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/zonlabs/mcp-ts/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/zonlabs/mcp-ts

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/zonlabs/mcp-ts/agents-md/github.svg)](https://agentmods.dev/instructions/zonlabs/mcp-ts/agents-md)

Your own site

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

Per session 1,686 This file is loaded in full into every session.

When invoked 1,686 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	$0.01686	$0.01686
Opus 5.5	$0.00674	$0.00674
Sonnet 5.5	$0.00337	$0.00337
Haiku 4.5	$0.00169	$0.00169

Measured 1mo ago against content hash d24aaea6a8cb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-ts 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 1mo 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 · 153 lines

How it starts

The opening of the file, as written. The whole thing — 153 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — mcp-ts Monorepo

What is this?

mcp-ts is a TypeScript monorepo for building MCP (Model Context Protocol) applications. It provides:

@mcp-ts/client — core Client SDK with multi-backend session storage, OAuth 2.1, SSE handlers, React/Vue hooks, and agent framework adapters
@mcp-ts/tool-router — on-demand tool discovery to reduce LLM context bloat
@mcp-ts/codemode — sandboxed programmatic tool execution

The Client package is consumed by mcp-client (Next.js, hosted on Vercel) and mcp-server (Hono, hosted on Railway).

Repository Structure

mcp-ts/
  .github/workflows/   # CI/CD — release.yml auto-publishes to npm on version bumps
  .claude/              # Claude settings
  docs/                 # Mintlify documentation (docs.linkos.in)
  benchmarks/           # tool-router performance benchmarks
  AGENTS.md             # ← this file — project guide for AI agents and contributors
  README.md             # public-facing readme (npm-published for Client)
  package.json          # npm workspace root ("workspaces": ["packages/*"])
  packages/
    client/             # @mcp-ts/client
      src/
        server/
          storage/      # pluggable backends: neon, supabase, sqlite, redis, memory, file
          mcp/          # oauth-client, storage-oauth-provider, tool-policy-gateway
          handlers/     # sse-handler, nextjs-handler
        client/
          react/        # useMcp hook, McpAppRenderer, OAuth popup
          vue/          # Vue composable
          core/         # sse-client, app-host
        adapters/       # AI SDK, LangChain, Mastra, AG-UI
        shared/         # types, events, utils, constants
        bin/            # CLI (mcp-ts supabase-init)
      tests/            # Playwright tests per-backend + integration
      migrations/       # SQL migrations (neon/, supabase/, v2.3.4/)
      tsup.config.ts    # build config (multi-entry)
      playwright.config.ts
    code-mode/          # @mcp-ts/codemode
    tool-router/        # @mcp-ts/tool-router

Read the full file on GitHub · 153 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.

1mo ago Changed · -4 tokens per session d24aaea6a8cb
2mo ago First seen · 153 lines · 1,690 tokens per session scan A b01e071fe0b5

Subscribe to this mod's changes

mcp-ts AGENTS.md is an instructions file published in the GitHub repository zonlabs/mcp-ts (23 stars, last pushed 29d ago), licensed MIT. It adds 1,686 tokens to every session, about $0.0067 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.

TypeScript ag-ui-protocol agents mcp-app mcp-client redis

mcp-ts AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
mcp-ts AGENTS.mdzonlabs/mcp-ts	Instructions file	23	29d ago	MIT	A	1,686	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

mcp-ts: Instructions file for Codex