What is dash0-agent-plugin AGENTS.md?

Repository instructions for the Dash0 coding-agent plugin. They explain where runtime code belongs, which documents to read, and which behaviour and privacy rules to preserve.

Use them when modifying runtime integrations, event processing, hooks, commands, skills, configuration, or documentation in the plugin.

They reduce the risk of putting files in the wrong place or breaking telemetry, error handling, credentials, or privacy defaults while changing the repository.

How dash0hq/dash0-agent-plugin configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to dash0hq/dash0-agent-plugin. 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/dash0hq/dash0-agent-plugin/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/dash0hq/dash0-agent-plugin

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/dash0hq/dash0-agent-plugin/agents-md/github.svg)](https://agentmods.dev/instructions/dash0hq/dash0-agent-plugin/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/dash0hq/dash0-agent-plugin/agents-md"><img src="https://agentmods.dev/badge/instructions/dash0hq/dash0-agent-plugin/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/dash0hq/dash0-agent-plugin/agents-md"><img src="https://agentmods.dev/badge/instructions/dash0hq/dash0-agent-plugin/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 662 This file is loaded in full into every session.

When invoked 662 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	$0.00662	$0.00662
Opus 5.5	$0.00265	$0.00265
Sonnet 5.5	$0.00132	$0.00132
Haiku 4.5	$0.00066	$0.00066

Measured 3d ago against content hash 62953bac3cb1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

dash0-agent-plugin 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 3d 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 · 49 lines

How it starts

The opening of the file, as written. The whole thing — 49 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository guidance

This repository exports coding-agent activity as OpenTelemetry. It ships seven runtime integrations backed by shared Go code. Read ARCHITECTURE.md before changing package ownership or event processing, and DEVELOPMENT.md for coding conventions and verification commands.

Before changing code

Read the developer README for the affected runtime: Claude, Cursor, Codex, Copilot, OpenCode V2, Copilot app, or Amp.
Keep runtime payload translation in internal/source/<runtime>/, hook I/O and runtime orchestration in cmd/<runtime>-on-event/, and shared lifecycle behavior in internal/pipeline/. The architecture document describes the existing exceptions.
Keep shipped commands, skills, and hook registrations under their runtime directory. Do not create root commands/, skills/, or hooks/ directories; runtimes can auto-discover each other's files there.
Preserve observational hooks' fail-open behavior. Telemetry failures must not block the user's agent session. Install-time and utility subcommands have separate exit contracts.
Preserve privacy defaults and credential precedence. Use the shared harness configuration accessors rather than adding independent environment lookups. When adding a user-facing plugin option, update Claude's userConfig in .claude-plugin/plugin.json and its option table in .claude-plugin/README.md. The hosted userConfig check greps only cmd/claude-on-event/main.go and internal/harness/harness.go for literal accessor keys, so it does not cover the option table or options read elsewhere.
Each hook runs in a new process. Session state on disk, event ordering, and concurrent hook invocations matter; do not replace cross-event state with process-local variables.

Verification and documentation

Read the full file on GitHub · 49 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.

3d ago Changed · +1 lines · +10 tokens per session 62953bac3cb1
29d ago First seen · 48 lines · 652 tokens per session scan A 8ca4331d7072

Subscribe to this mod's changes

dash0-agent-plugin AGENTS.md is an instructions file published in the GitHub repository dash0hq/dash0-agent-plugin (6 stars, last pushed 3d ago), licensed Apache-2.0. It adds 662 tokens to every session, about $0.0026 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 2026-10-09.

Building agents Claude Code codex coding-agents cursor dash0 github-copilot

dash0-agent-plugin AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
dash0-agent-plugin AGENTS.mddash0hq/dash0-agent-plugin	Instructions file	6	3d ago	Apache-2.0	A	662	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

dash0-agent-plugin: Instructions file for Codex