Opik is an open-source platform for tracing, evaluating, and monitoring applications that use large language models, retrieval systems, or AI agents. Teams use it to inspect agent activity, manage prompts, run evaluations, and monitor these applications in production.
Borrowing it
Nothing to install: this file belongs to comet-ml/opik. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/comet-ml/opik/main/AGENTS.mdgit clone --depth 1 https://github.com/comet-ml/opikWrote 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.
[](https://agentmods.dev/instructions/comet-ml/opik/agents-md)<a href="https://agentmods.dev/instructions/comet-ml/opik/agents-md"><img src="https://agentmods.dev/badge/instructions/comet-ml/opik/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.
<a href="https://agentmods.dev/instructions/comet-ml/opik/agents-md"><img src="https://agentmods.dev/badge/instructions/comet-ml/opik/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.01338 | $0.01338 |
| Opus 5.5 | $0.00535 | $0.00535 |
| Sonnet 5.5 | $0.00268 | $0.00268 |
| Haiku 4.5 | $0.00134 | $0.00134 |
Grade A, and why
opik 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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Repository Guidelines
Scope & Inheritance
- This is the canonical monorepo guide for shared contribution policy.
- Module-level
AGENTS.mdfiles should keep only module-specific guidance and reference this file for shared rules.
Project Structure & Module Organization
This repository is a multi-module Opik codebase. Main areas:
apps/opik-backend: Java backend (source insrc/main/java, tests insrc/test/java).apps/opik-frontend: React/TypeScript frontend (srcand related assets/config).apps/opik-documentation: documentation website and generated API docs.sdks/python,sdks/typescript,sdks/opik_optimizer: SDK packages and examples.deployment,scripts,extensions: infra, tooling, and integration extension points.tests_end_to_end,tests_load: cross-stack and performance test suites.
Build, Test, and Development Commands
./opik.sh— run default local stack via Docker../opik.sh --build— rebuild images and run the full stack../opik.sh --verify— run stack health checks../opik.sh --stop— stop local services.scripts/dev-runner.sh— fast local process mode (BE + FE).scripts/dev-runner.sh --be-only-restart— backend-focused local development.scripts/dev-runner.sh --build-be/--build-fe— build one side only.scripts/dev-runner.sh --lint-be— Java lint/format checks.scripts/dev-runner.sh --lint-fe— frontend lint/type checks vianpm.cd apps/opik-frontend && npm run lint && npm run test— run ESLint + Vitest.cd apps/opik-frontend && npm run build— production frontend build.cd apps/opik-backend && mvn test— backend unit/integration tests.cd apps/opik-backend && mvn spotless:apply— apply Java formatting.cd sdks/python && pip install -r tests/test_requirements.txt && pip install -r tests/unit/test_requirements.txt && pytest tests/unit tests/e2e— Python SDK test suites.make precommit— run pre-commit hooks on changed files (vs origin/main) from the root.pre-commit-config.yamlacross all modules (do not duplicate per-module command lines in multiple places).cd sdks/typescript && npm run lint && npm run test && npm run build— TS SDK checks.cd tests_end_to_end/e2e && npx playwright test— cross-stack Playwright E2E suite.
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.
- 5d ago Changed · +1 lines · +49 tokens per session 8b8bbe77af75
- 2mo ago First seen · 78 lines · 1,289 tokens per session scan A 0e4442cff9c7
opik AGENTS.md is an instructions file published in the GitHub repository comet-ml/opik (22,998 stars, last pushed today), licensed Apache-2.0. It adds 1,338 tokens to every session, about $0.0054 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.