config-sync AGENTS.md

config-sync AGENTS.md is an instructions file for Codex, OpenCode from GoogleContainerTools/config-sync. It costs 738 tokens per session, scanned A, original, Apache-2.0.

AGENTS.md instructions for GoogleContainerTools/config-sync, covering agents.md, project summary, repository layout, build, test, lint and agent skills.

Instructions file for CodexOpenCode

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/googlecontainertools/config-sync/agents-md
Clone the repo
git clone --depth 1 https://github.com/GoogleContainerTools/config-sync

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 config-sync AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/googlecontainertools/config-sync/agents-md.svg)](https://agentmods.dev/instructions/googlecontainertools/config-sync/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/googlecontainertools/config-sync/agents-md"><img src="https://agentmods.dev/badge/instructions/googlecontainertools/config-sync/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 738 This file is loaded in full into every session.
When invoked 738 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 $0.00738 $0.00738
Opus 5 $0.00369 $0.00369
Sonnet 5 $0.00148 $0.00148
Haiku 4.5 $0.00074 $0.00074

Measured today against content hash 48f5bc4a7f6e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

config-sync 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 today.

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 · 47 lines

How it starts

The opening of the file, as written. The whole thing — 47 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Guidance for AI coding agents working in this repository. Human contributors should also read docs/contributing.md, docs/development.md, and docs/testing.md, which are the source of truth.

Project summary

Config Sync synchronizes configurations and policies from a source of truth (Git repository, OCI image, or Helm chart) to a Kubernetes cluster, ensuring consistency at scale. It simplifies and automates configuration management across single or multi-cluster environments, managing both cluster-scoped and namespace-scoped resources.

Key Technologies & Architecture:

  • Language & Frameworks: Go, Kubernetes, Kubebuilder / Controller Runtime, Kustomize.
  • Core Custom Resources: RootSync (cluster-scoped synchronization) and RepoSync (namespace-scoped synchronization).
  • Reconciler Manager: Controller component that manages the lifecycle of individual reconciler deployments.
  • Reconcilers: Specialized controllers spawned for each sync target that watch the upstream source and apply manifests to the cluster.
  • Admission Webhook: Validates configuration and state changes for Config Sync custom resources.
  • Nomos CLI: Command-line interface for inspecting status, troubleshooting, and interacting with Config Sync deployments.

Repository layout

Path What lives there
cmd/ Main entrypoints for controllers (reconciler-manager, reconciler, admission-webhook) and the nomos CLI.
pkg/ Core implementation logic: reconcilers, git/OCI sync logic, manifest parsers, validation logic, and webhook handlers.
manifests/ Base Kubernetes manifests and Kustomize configurations used to deploy Config Sync components.
e2e/ End-to-end test framework and test suites (Go-driven, runnable against kind or GKE).
docs/ Documentation for usage, installation, contributing, development, and testing.
examples/ Sample Git repositories and configurations used for tutorials and verification.
scripts/ Shell scripts for CI, verification, and auxiliary build tasks.
build/ Build setups, container entrypoints, base Dockerfiles, and build dependencies.

Read the full file on GitHub · 47 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. today First seen · 47 lines · 738 tokens per session scan A 48f5bc4a7f6e

Subscribe to this mod's changes

config-sync AGENTS.md is an instructions file published in the GitHub repository GoogleContainerTools/config-sync (278 stars, last pushed yesterday), licensed Apache-2.0. It adds 738 tokens to every session, about $0.0037 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 2026-09-04.