google-jules-mcp-server: Instructions file for Codex

AGENTS.md

google-jules-mcp-server AGENTS.md is an instructions file for Codex, OpenCode from georgeracu/google-jules-mcp-server. It costs 996 tokens per session, scanned A, original, MIT.

A set of project instructions for a Node.js and TypeScript server that connects the Google Jules API to AI tools through MCP, a standard for tool integrations. It defines project context, coding rules, commands, and tool constraints.

In plain words
What is it for?
Use it when modifying the Google Jules MCP server. It covers dependency installation, compilation, type checking, linting, formatting, tests, coverage, and an optional live API check.
Why use it?
It tells coding agents where to find the project’s real formatting rules and how to build, check, lint, format, and test the code. This reduces inconsistent changes and skipped verification.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md.

This is georgeracu/google-jules-mcp-server's own configuration. It tells Codex and OpenCode how to work on google-jules-mcp-server 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 google-jules-mcp-server configures →

Reuse

Borrowing it

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

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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README.md
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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.

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Your own site · 80×15
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Per session 996 This file is loaded in full into every session.
When invoked 996 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 $0.00996 $0.00996
Opus 5 $0.00498 $0.00498
Sonnet 5 $0.00199 $0.00199
Haiku 4.5 $0.00100 $0.00100

Measured 8d ago against content hash bb10a2cc14f6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

google-jules-mcp-server 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 8d 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 · 58 lines

How it starts

The opening of the file, as written. The whole thing — 58 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Project Overview

  • Core Stack: Node.js (>=22.0.0), TypeScript, Model Context Protocol (MCP) SDK.
  • Purpose: Google Jules API (v1alpha) integration server enabling LLM tool calling via MCP stdio transport.

Single Source of Truth for Code Style

  • Do NOT duplicate style configurations in this file.
  • Rule: You must dynamically check the local project configuration files (package.json, tsconfig.json, .prettierrc.json, or eslint.config.js if present) to read the formatting and lint rules.
  • Validation: Run the verification commands listed below before committing or completing any task to ensure code complies with local rules.

Build & Test Commands

  • Install Dependencies: npm install or npm ci
  • Compile: npm run build
  • Type Check: npm run typecheck or npx tsc --noEmit
  • Lint Verification: npm run lint (ESLint flat config)
  • Format Check: npm run format (Prettier check)
  • Format Fix: npm run format:fix (Prettier fix)
  • Run Tests: npm test (Vitest unit test suite)
  • Coverage: npm run test:coverage (Vitest coverage report)
  • Smoke Test: JULES_LIVE_SMOKE_TEST=1 npm run test:smoke (Opt-in live API check)

MCP & Tool Constraints

  • Schema Validation: Use zod for parsing and defining tool schemas. Every API response is validated at runtime with Zod (z.infer).
  • Tool Registration: Registration order in src/server.ts must strictly match TOOL_NAMES array (Sources tools, Session tools, then Activity tools) to ensure tests/server.test.ts passes.
  • API Mapping: Map parameters accurately to Google Jules API v1alpha specifications.

Boundaries & Permissions

  • ALWAYS: Run local build, type-checking, linting, and tests before finalizing any code modification.
  • NEVER: Hardcode API credentials or environment variables; always look for JULES_API_KEY in process environment variables.
  • NEVER: Include AI co-author trailers in git commits.

Read the full file on GitHub · 58 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. 8d ago First seen · 58 lines · 996 tokens per session scan A bb10a2cc14f6

Subscribe to this mod's changes

google-jules-mcp-server AGENTS.md is an instructions file published in the GitHub repository georgeracu/google-jules-mcp-server (2 stars, last pushed today), licensed MIT. It adds 996 tokens to every session, about $0.0050 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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