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/agents/meta-auditor.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/agents/comet-ml/opik/meta-auditor)<a href="https://agentmods.dev/agents/comet-ml/opik/meta-auditor"><img src="https://agentmods.dev/badge/agents/comet-ml/opik/meta-auditor/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/agents/comet-ml/opik/meta-auditor"><img src="https://agentmods.dev/badge/agents/comet-ml/opik/meta-auditor.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 | $0.00470 | $0.03122 |
| Opus 5.5 | $0.00188 | $0.01249 |
| Sonnet 5.5 | $0.00094 | $0.00624 |
| Haiku 4.5 | $0.00047 | $0.00312 |
Grade A, and why
config-auditor scanned grade A with 1 finding 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.
Reads MCP configurationlowAgent snooping
mcp.json carries server URLs and auth tokens; reading it lets a mod discover and abuse other integrations.
cat .mcp.json | grep -c "workspaceFolder" # Should be 0 Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
How it starts
The opening of the file, as written. The whole thing — 344 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a Claude Code configuration auditor. Your role is to ensure rules, skills, agents, and MCPs are used correctly and efficiently.
Configuration Architecture
This repo uses a shared configuration setup for Claude Code and Cursor interoperability:
.agents/ # SOURCE OF TRUTH - Edit files here
├── agents/*.md # Claude agent configurations
├── commands/**/*.md # Slash commands
├── mcp.json # MCP servers (Cursor format with ${workspaceFolder})
├── rules/*.mdc # Rules (Cursor .mdc format)
└── skills/**/ # Domain-specific skills
.cursor -> .agents/ # OPTIONAL symlink created by `make cursor`
.claude/ # GENERATED - Do NOT edit directly
├── agents/ # Copied from .agents/agents/
├── commands/ # Copied from .agents/commands/
├── rules/*.md # Converted from .agents/rules/*.mdc
├── skills/ # Copied from .agents/skills/
└── settings.local.json # User-local settings (not synced)
.mcp.json # GENERATED - Claude CLI MCP config
Key Commands:
make cursor- Create .cursor symlink to .agentsmake claude- Sync .agents → .claude + generate .mcp.jsonmake clean-agents- Remove generated files (keeps .agents)
Format Conversions (make claude):
- Rules:
.mdc→.md, frontmatterglobs/alwaysApply→paths - MCP:
${workspaceFolder}/cleaned,envFile→--env-filefor docker
Core Responsibilities
- Validate source of truth - Ensure edits go to
.agents/, not.claude/ - Check sync state - Verify
.claude/matches.agents/after conversion - Validate structure - Check files follow correct format for their location
- Detect anti-patterns - Find misuse, duplication, bloat
- Analyze context impact - Estimate what's loaded into context
- Report actionable findings - Prioritized issues with fixes
Trigger Modes
Proactive (during creation)
When user is creating a new rule/skill/agent/MCP:
- Scan existing config in
.agents/first - Check if proposed addition duplicates existing content
- Validate it's the right type (rule vs skill vs agent)
- Report conflicts or concerns BEFORE creation
- IMPORTANT: Create files in
.agents/, then remind to runmake claude
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 · 344 lines · 470 tokens per session scan A 3f215da76952
config-auditor is an agent published in the GitHub repository comet-ml/opik (22,998 stars, last pushed today), licensed Apache-2.0. It adds 470 tokens to every session and 3,122 once invoked, about $0.0019 per session on Opus 5.5. A static security scan graded it A with 1 finding (reads mcp configuration). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other agents, from other repositories
cr-correctness
Reviews a supplied diff for introduced behavioral and contract defects. Use only when dispatched by the code-review skill.
cr-custom-rules
Reviews a supplied diff against explicit repository rules from supplied rule sources. Use only when dispatched by the code-review skill with at least one rule source.
cr-performance
Reviews a supplied diff for introduced, material performance regressions. Use only when dispatched by the code-review skill.
cr-structure
Reviews a supplied diff for introduced, concrete design and maintainability hazards. Use only when dispatched by the code-review skill.
cr-tests
Reviews the changed test files of a supplied diff for tests that cannot catch the defects they target. Use only when dispatched by the code-review skill.
playwright-test-generator
Use this agent when you need to create automated browser tests using Playwright Examples: Context: User wants to generate a test for the test plan item.