gws-connector copilot-instructions.md

gws-connector copilot-instructions.md is an instructions file for GitHub Copilot from orieg/gws-connector. It costs 390 tokens per session, scanned A, original, MIT.

Project instructions for reviewing a Go server that connects Gmail, Calendar, and Drive to coding agents through MCP, a standard way for applications to expose tools to one another.

In plain words
What is it for?
Reviewing authentication, token storage, account selection, Google API input validation, credentials, OAuth callback output, and the server’s service architecture.
Why use it?
They focus code reviews on security and correctness risks such as leaked OAuth tokens, weak file permissions, unsafe API inputs, and incorrect account routing.

Instructions file for GitHub Copilot

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/orieg/gws-connector/copilot-instructions
Clone the repo
git clone --depth 1 https://github.com/orieg/gws-connector

Made for: GitHub Copilot.

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 gws-connector copilot-instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/orieg/gws-connector/copilot-instructions.svg)](https://agentmods.dev/instructions/orieg/gws-connector/copilot-instructions)
Your own site
<a href="https://agentmods.dev/instructions/orieg/gws-connector/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/orieg/gws-connector/copilot-instructions.svg" alt="Measured on agentmods" height="20"></a>
Per session 390 This file is loaded in full into every session.
When invoked 390 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00390 $0.00390
Opus 5 $0.00195 $0.00195
Sonnet 5 $0.00078 $0.00078
Haiku 4.5 $0.00039 $0.00039

Measured 4d ago against content hash 6530c59be0bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

gws-connector copilot-instructions.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 4d 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.

.github/copilot-instructions.md · 38 lines

What it actually says

Copilot Code Review Instructions

Project Overview

gws-connector is a multi-account Google Workspace MCP server (Go). It connects Gmail, Calendar, and Drive to Claude Code and other MCP clients via JSON-RPC over stdio.

Architecture

  • cmd/gws-mcp/ — Entry point, reads env vars, starts MCP server on stdio
  • internal/accounts/ — Account registry (JSON file) and routing (label/email resolution)
  • internal/auth/ — OAuth2 flows, token storage (OS keychain with file fallback), API client factory
  • internal/services/ — Gmail, Calendar, Drive tool handlers
  • internal/server/ — MCP tool registration and dispatch

Review Focus Areas

Security (high priority)

  • OAuth token handling: tokens must never be logged or included in error messages
  • File permissions: state files must use 0600, directories 0700
  • Input sanitization: parameters used in Google API queries (especially Drive folderId) must be validated
  • No hardcoded credentials — all secrets come from env vars or OS keychain
  • HTML output in OAuth callback must use html.EscapeString(), not manual replacement

Correctness

  • Account routing: label/email matching must be case-insensitive (strings.EqualFold)
  • Error handling: all errors from external calls must be wrapped with context using %w
  • Token refresh: persisted tokens must be saved after refresh; save errors must be logged

Go idioms

  • Use fmt.Errorf("context: %w", err) for error wrapping
  • Prefer early returns over deep nesting
  • No exported symbols unless needed by another package
  • Tests use t.TempDir() for filesystem isolation

Out of scope

  • Performance optimization (single-user MCP server, not a web service)
  • Concurrency patterns beyond the OAuth callback goroutine
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. 4d ago First seen · 38 lines · 390 tokens per session scan A 6530c59be0bc

Subscribe to this mod's changes

gws-connector copilot-instructions.md is an instructions file published in the GitHub repository orieg/gws-connector (1 stars, last pushed 2d ago), licensed MIT. It adds 390 tokens to every session, about $0.0019 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.

Related

Other instructions, from other repositories