10x-bench: Skill for Claude Code

.claude/skills/10x-eval-model/SKILL.md

10x-eval-model is a skill for Claude Code from przeprogramowani/10x-bench. It costs 106 tokens per session (3,102 once invoked), scanned E, original, MIT.

A workflow for adding and running evaluations of new language models in the 10xBench benchmarking project.

In plain words
What is it for?
Use it when adding a model, updating its benchmark details, preparing evaluation attempts, or launching a benchmark run.
Why use it?
It organizes the setup work needed before a model can be compared in a benchmark, including metadata, pricing checks, directories, and evaluation runs.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions subagents; positional $N argument; mentions Claude Code.

This is przeprogramowani/10x-bench's own configuration. It tells Claude Code how to work on 10x-bench itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything 10x-bench configures →

Reuse

Borrowing it

Nothing to install: this file belongs to przeprogramowani/10x-bench. 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/przeprogramowani/10x-bench/master/.claude/skills/10x-eval-model/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/przeprogramowani/10x-bench

Made for: Claude Code.

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.

agentmods badge for 10x-eval-model

README.md
[![agentmods](https://agentmods.dev/badge/skills/przeprogramowani/10x-bench/10x-eval-model/github.svg)](https://agentmods.dev/skills/przeprogramowani/10x-bench/10x-eval-model)
Your own site
<a href="https://agentmods.dev/skills/przeprogramowani/10x-bench/10x-eval-model"><img src="https://agentmods.dev/badge/skills/przeprogramowani/10x-bench/10x-eval-model/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.

agentmods 80×15 button for 10x-eval-model

Your own site · 80×15
<a href="https://agentmods.dev/skills/przeprogramowani/10x-bench/10x-eval-model"><img src="https://agentmods.dev/badge/skills/przeprogramowani/10x-bench/10x-eval-model.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 106 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,102 The whole file, excluding the scripts and references it only reads on demand.
Security scan E 3 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00106 $0.03102
Opus 5.5 $0.00042 $0.01241
Sonnet 5.5 $0.00021 $0.00620
Haiku 4.5 $0.00011 $0.00310

Measured 27d ago against content hash de801554c4bd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade E, and why

10x-eval-model scanned grade E with 3 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 27d 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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

**Version:** OpenCode 2.x (`opencode --version`; install/upgrade with `curl -fsSL https://opencode.ai/v2/install | bash`). Runs go through OpenCode's shared background service by default; the session still records the at

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

If runs fail due to credit limits ("requires more credits"), inform the user with a link to https://openrouter.ai/settings/credits and offer to re-run after they top up. Clean attempt directories before re-running (`rm -

Makes network callslowCapability

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

**Version:** OpenCode 2.x (`opencode --version`; install/upgrade with `curl -fsSL https://opencode.ai/v2/install | bash`). Runs go through OpenCode's shared background service by default; the session still records the at
.claude/skills/10x-eval-model/SKILL.md · 219 lines

How it starts

The opening of the file, as written. The whole thing — 219 lines — stays where its author put it; the contents beside it link to each section on GitHub.

10x-eval-model

Orchestrates the full setup and execution pipeline for evaluating a new LLM model in the 10xBench benchmark. This includes updating metadata, verifying pricing, preparing attempt directories, and launching evaluation runs via the appropriate harness.

Inputs

The user provides:

  • Model ID — the short identifier used in directory names (e.g., glm-51, gemini-31-pro)
  • Display name — human-readable name (e.g., GLM-5.1, Gemini 3.1 Pro)
  • Harness — the coding agent environment used to run the model (e.g., opencode, cursor, claude-code, claude-desktop, codex-desktop)
  • Supersedes (optional) — the model ID this new model replaces (e.g., glm-5 is superseded by glm-51)

If the user provides a natural model name like "GLM-5.1 via opencode", derive the model ID yourself (e.g., glm-51) and confirm with the user before proceeding.

Pipeline Steps

Step 1: Check if model already exists in metadata

Read eval-attempts/metadata.ts and check whether the model ID is already present. If it exists but is commented out, offer to uncomment it instead of adding new entries. If it already exists and is active, inform the user and skip to Step 4.

Step 2: Look up pricing

Search the web for current API pricing for the model (per 1M tokens, input and output, USD, no cache). Present findings to the user for confirmation before writing to metadata. Check multiple sources (official docs, OpenRouter, Artificial Analysis) to cross-reference.

Step 3: Update metadata.ts

Add the model to all relevant sections in eval-attempts/metadata.ts:

  1. ModelId type union — add | "model-id" entry
  2. AGENT_NAMES — add "model-id": "Display Name" entry
  3. AGENT_ENV — add "model-id": AGENT_ENVIRONMENT.<harness> entry (see harness mapping below)
  4. MODEL_PRICING — add "model-id": {input: X, output: Y} with confirmed pricing
  5. SUPERSEDED_MODELS (if applicable) — add "old-model-id": "new-model-id" entry

Read the full file on GitHub · 219 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.

  1. 27d ago Changed · +196 lines · +51 tokens per session scan A → E de801554c4bd
  2. 1mo ago Changed · -166 lines · -51 tokens per session scan C → A 890dc31640b3
  3. 2mo ago First seen · 189 lines · 106 tokens per session scan C 5496a43ed928

Subscribe to this mod's changes

10x-eval-model is a skill published in the GitHub repository przeprogramowani/10x-bench (14 stars, last pushed 20d ago), licensed MIT. It adds 106 tokens to every session and 3,102 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it E with 3 findings (downloads and executes remote code, recursive force delete, 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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