What is instana-agent-operator AGENTS.md?

Repository instructions for Instana Agent Operator, a Kubernetes operator written in Go. Kubernetes operators automate the management of applications and infrastructure in a Kubernetes cluster.

Use them to build and test the operator, run linters and formatters, run end-to-end tests, validate Renovate configuration, and check for exposed secrets before committing.

They collect the project's required build, test, formatting, linting, Go version, commit, and secret-checking rules in one place. This reduces mistakes when working on the repository.

How instana/instana-agent-operator configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to instana/instana-agent-operator. 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/instana/instana-agent-operator/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/instana/instana-agent-operator

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/instana/instana-agent-operator/agents-md/github.svg)](https://agentmods.dev/instructions/instana/instana-agent-operator/agents-md)

Your own site

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

Per session 1,381 This file is loaded in full into every session.

When invoked 1,381 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	$0.01381	$0.01381
Opus 5.5	$0.00552	$0.00552
Sonnet 5.5	$0.00276	$0.00276
Haiku 4.5	$0.00138	$0.00138

Measured 2mo ago against content hash 278b5617f030, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

instana-agent-operator 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 2mo 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 · 97 lines

How it starts

The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

This file provides guidance to agents when working with code in this repository.

Build & Test Commands

Build: make build
Lint: make lint
Format: make fmt or format specific file: ./bin/golangci-lint fmt ./path/to/file
Run tests: make test (excludes mocks and e2e directories)
Run single test: go test -v ./path/to/package -run TestName
E2E tests: make e2e (requires e2e/.env file - copy from e2e/.env.example)
Install golangci-lint if missing: make golangci-lint
Validate renovate.json: npx --yes --package renovate -- renovate-config-validator
Secrets baseline: detect-secrets scan --update .secrets.baseline before committing
Secrets audit: detect-secrets audit .secrets.baseline

Code Style

Go version: Check go.mod toolchain directive (currently go 1.25.0)
Line length: 120 characters max (enforced by lll linter)
Linters: See .golangci.yml for full configuration (govet, ineffassign, unused, misspell, exhaustive, errcheck, lll)
Commit messages: MUST include DCO sign-off with git commit -s. Use conventional commits syntax for subject, concise message with brief summary in body

Project-Specific Rules (Non-Obvious Only)

Error wrapping: MUST use github.com/pkg/errors package (not standard library errors)
Tools directory: All binaries install to ./bin/ (GOBIN override in Makefile)
Branch naming: Avoid / in branch names (breaks SPS/Tekton CI pipeline task names)
Container builds: Uses buildctl with containerized buildkitd (not direct docker build)
PR template: Fill out .github/pull_request_template.md and use as PR body

Kubernetes Operator Specifics

Finalizers: Two versions exist (finalizerV1 and finalizerV3) in controllers, prefer finalizerV3
ETCD discovery: Automatic on OpenShift - copies certs from openshift-etcd namespace to instana-agent
Namespace handling: Default namespace is instana-agent, not default
CRD versions: InstanaAgent has both v1 and v1beta1, RemoteAgent only v1
OpenShift detection: Uses oc command availability to detect OCP vs vanilla K8s
Local dev: make dev-run-cluster for full setup, make run to run operator locally
Cleanup: make purge removes all cluster resources including finalizers

Read the full file on GitHub · 97 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.

2mo ago First seen · 97 lines · 1,381 tokens per session scan A 278b5617f030

Subscribe to this mod's changes

instana-agent-operator AGENTS.md is an instructions file published in the GitHub repository instana/instana-agent-operator (49 stars, last pushed yesterday), licensed Apache-2.0. It adds 1,381 tokens to every session, about $0.0055 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.

instana-agent-operator AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
instana-agent-operator AGENTS.mdinstana/instana-agent-operator	Instructions file	49	yesterday	Apache-2.0	A	1,381	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

instana-agent-operator: Instructions file for Codex