online-evals

online-evals is a skill for Claude Code, Codex from launchdarkly/ai-tooling. It costs 32 tokens per session (3,855 once invoked), scanned B, original, no licence file.

A workflow for evaluating AI configuration variations with automated judges. An LLM-as-a-judge uses one language model to assess another model's responses against defined criteria.

In plain words
What is it for?
Use it to attach judges, create custom evaluation rules, set sampling rates, and monitor quality scores.
Why use it?
It provides repeated quality checks and scores without requiring a person to review every response.

Skill for Claude CodeCodex

Part of the launchdarkly plugin — 50 skills, 1 MCP server shipped together

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 skills/launchdarkly/ai-tooling/online-evals
Any agent
npx skills add launchdarkly/ai-tooling --skill online-evals
Clone the repo
git clone --depth 1 https://github.com/launchdarkly/ai-tooling

Made for: Claude Code, Codex.

Or install launchdarkly, the plugin that ships this one along with the rest of its 50 skills, 1 MCP server.

Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,855 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. Scan, not verified.
Origin unknown 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 $0.00032 $0.03855
Opus 5 $0.00016 $0.01928
Sonnet 5 $0.00006 $0.00771
Haiku 4.5 $0.00003 $0.00385

Measured 3d ago against content hash d79667e6c22f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

online-evals scanned grade B with 2 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

2. **Check MCP config** - Claude: `~/.claude/config.json` -> `mcpServers.launchdarkly.env.LAUNCHDARKLY_API_KEY`

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -X POST "https://app.launchdarkly.com/api/v2/projects/{projectKey}/ai-configs" \
skills/agentcontrol/online-evals/SKILL.md · 456 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago First seen · 456 lines · 32 tokens per session scan B d79667e6c22f

Subscribe to this mod's changes

online-evals is a skill published in the GitHub repository launchdarkly/ai-tooling (25 stars, last pushed today), with no licence file. It adds 32 tokens to every session and 3,855 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 2 findings (reads agent configuration directories, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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