agentmods.dev

tableau-mcp: Instructions file for Codex

AGENTS.md

tableau-mcp AGENTS.md is an instructions file for Codex, OpenCode from tableau/tableau-mcp. It costs 1,883 tokens per session, scanned A, original, Apache-2.0.

A set of project instructions for working on tableau-mcp, a server that lets coding agents access Tableau data tools. It describes the repository, its architecture, commands, and the expected implementation rules.

In plain words
What is it for?
Use it when implementing or reviewing features in the tableau-mcp repository, especially Tableau Desktop authoring tools.
Why use it?
It gives an agent the project context and the repository’s definition of correct work before code changes are made. It also documents how web and Tableau Desktop versions are built.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: reads .claude/ paths; mentions AGENTS.md.

This is tableau/tableau-mcp's own configuration. It tells Codex and OpenCode how to work on tableau-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything tableau-mcp configures →

not rated 354repo +2 today A scan 1,883 tokens original Apache-2.0
View source ↗ tableau/tableau-mcp tableau.github.io
Reuse

Borrowing it

Nothing to install: this file belongs to tableau/tableau-mcp. 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/tableau/tableau-mcp/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/tableau/tableau-mcp

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.

agentmods badge for tableau-mcp AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/tableau/tableau-mcp/agents-md/github.svg)](https://agentmods.dev/instructions/tableau/tableau-mcp/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/tableau/tableau-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/tableau/tableau-mcp/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.

agentmods 80×15 button for tableau-mcp AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/tableau/tableau-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/tableau/tableau-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,883 This file is loaded in full into every session.
When invoked 1,883 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01883 $0.01883
Opus 5.5 $0.00753 $0.00753
Sonnet 5.5 $0.00377 $0.00377
Haiku 4.5 $0.00188 $0.00188

Measured 1mo ago against content hash 46c55237cdc5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tableau-mcp 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Repo-level contract for the global agent OS. Defines what "correct" means in tableau-mcp. Source of truth for agents before any implementation.

Staged copy. Target path on apply: repo root AGENTS.md (branch feature/authoring, or main). Encodes the canonical Desktop-tool migration pattern verified from merged PRs #347 (session) and #370 (workbook).

Project overview

@tableau/mcp-server — an MCP server "helping agents see and understand data." Exposes Tableau capabilities to MCP clients over stdio and HTTP. Ships multiple build variants (default web, desktop, combined) from one codebase via src/scripts/build.ts + esbuild conditional bundling. An active migration on feature/authoring ports Tableau Desktop authoring tools from the agent-to-tableau-desktop repo into src/tools/desktop/.

Architecture

  • Entry: src/index.ts selects stdio vs HTTP transport (src/transports.ts) by TRANSPORT.
  • Web server: src/server.web.ts + src/server/express.ts (WebMcpServer); web tools in src/tools/web/.
  • Desktop server: src/server.desktop.ts (DesktopMcpServer); discovers local Tableau Desktop via @modelcontextprotocol/ext-apps + DesktopDiscoverer; proxies through DesktopToolExecutor. Desktop tools in src/tools/desktop/.
  • SDK layer: src/sdks/tableau/ wraps the Tableau REST API (Zodios).
  • Cross-cutting: src/config.ts (auth: pat/uat/direct-trust/oauth), src/logging/ (PAT/token masking), src/telemetry/, src/server/oauth/, src/sessions.ts, src/errors/mcpToolError.ts.

Package manager

npm (lockfile package-lock.json). Node >=22.7.5 (engines). Do not switch package managers; do not commit a non-npm lockfile.

Commands

  • Install: npm ci (do not run inside an agent loop unless explicitly asked; never auto-install)
  • Build: npm run build (esbuild via tsx; does not typecheck)
  • Test (all, CI-safe): npx vitest run --config ./vitest.config.ts — never bare npm test (that is watch mode and hangs)
  • Test (single file): npx vitest run src/path/to/file.test.ts
  • Test (by name): npx vitest run src/path/to/file.test.ts -t "pattern"
  • Typecheck: npx tsc --noEmit (no typecheck npm script exists; build uses esbuild, so this is the only static type gate)
  • Lint: npm run lint (eslint)
  • Canonical check: scripts/agent-check

Read the full file on GitHub · 85 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.

  1. 1mo ago First seen · 85 lines · 1,883 tokens per session scan A 46c55237cdc5

Subscribe to this mod's changes

tableau-mcp AGENTS.md is an instructions file published in the GitHub repository tableau/tableau-mcp (354 stars, last pushed today), licensed Apache-2.0. It adds 1,883 tokens to every session, about $0.0075 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.

mcpmcp-servermodelcontextprotocoltableau
Related

Other instructions, from other repositories

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 9,649 tokens

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,549 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).

microsoft/vscode · 5,262 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,680 tokens

vscode copilot-instructions.md

Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).

microsoft/vscode · 2,731 tokens

deno copilot-instructions.md

Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.

denoland/deno · 3,077 tokens