What is leaderboard-frontend CLAUDE.md?

Project instructions for a SvelteKit and TypeScript leaderboard website. It documents how the site is built, tested, deployed, and connected to the MTEB API, a service that provides embedding-benchmark data.

Use it when developing, checking, testing, or deploying the leaderboard frontend.

It gives the coding agent the project’s required commands, environment settings, routes, and data-source rules so changes fit the existing application.

How embeddings-benchmark/leaderboard-frontend configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to embeddings-benchmark/leaderboard-frontend. 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/embeddings-benchmark/leaderboard-frontend/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/embeddings-benchmark/leaderboard-frontend

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/embeddings-benchmark/leaderboard-frontend/claude-md/github.svg)](https://agentmods.dev/instructions/embeddings-benchmark/leaderboard-frontend/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/embeddings-benchmark/leaderboard-frontend/claude-md"><img src="https://agentmods.dev/badge/instructions/embeddings-benchmark/leaderboard-frontend/claude-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/embeddings-benchmark/leaderboard-frontend/claude-md"><img src="https://agentmods.dev/badge/instructions/embeddings-benchmark/leaderboard-frontend/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 3,690 This file is loaded in full into every session.

When invoked 3,690 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	$0.03690	$0.03690
Opus 5.5	$0.01476	$0.01476
Sonnet 5.5	$0.00738	$0.00738
Haiku 4.5	$0.00369	$0.00369

Measured 2mo ago against content hash 3def9e5e3ba0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

leaderboard-frontend CLAUDE.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 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.

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.

CLAUDE.md · 165 lines

How it starts

The opening of the file, as written. The whole thing — 165 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

SvelteKit + TypeScript + Svelte 5 (runes mode) port of the MTEB Gradio leaderboard. Deployed as a static site to a Hugging Face Space (via Dockerfile + nginx) and GitHub Pages. Runtime data source is the mteb FastAPI service (embeddings-benchmark/mteb, branch api). PUBLIC_API_URL is required — no mock fallback.

Commands

Makefile wraps the npm scripts.

make dev              # vite dev on http://localhost:5173
make build            # vite build
make deploy-build     # vite build with no base path (matches CI; custom domain serves from root)
make preview          # serve build/ on http://localhost:4173
make check            # svelte-kit sync && svelte-check
make lint             # prettier --check . && eslint .
make format           # prettier --write .
make test             # build + Playwright e2e
make kill-ports       # free 5173/5174/4173

Single test: npx playwright test tests/tab-switch.e2e.ts. Playwright reuseExistingServer: true so iterating against a running preview works.

Env vars

Read via $env/static/public (build-time inlined):

PUBLIC_API_URL — required, base URL of FastAPI. Loaders throw if unset.
PUBLIC_SITE_URL — canonical origin for prerender.origin and OG / canonical URLs.
BASE_PATH — build-time path prefix. Empty for both the Space and GitHub Pages (Pages serves from the leaderboard.mteb.org custom domain at root, via static/CNAME).
BUILD_NO_PRERENDER=1 — skips prerender locally (read by +layout.ts + detail +page.ts). Inlined via Vite define in vite.config.ts.

Routes

/explorer prefix is gone — every route is at the site root.

Route	Purpose
`/`	Three featured `PrimaryLeaderTile`s + `MenuSection`s
`/benchmarks`	Catalog + sidebar filters (Modality / Task type / Domain)
`/benchmark/[name]`	Hero + tabs (Summary / Perf×Size / Perf×Time / Per task / Per language / Info)
`/models` + `/models/[...name]`	Index + detail. Rest-param accepts `org/name` (validated by `params/modelName.ts`)
`/tasks` + `/tasks/[name]`	Index + detail, sidebar mirrors `/benchmarks`
`/compare`	Up to 4 models side-by-side with radar

Read the full file on GitHub · 165 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.

2mo ago First seen · 165 lines · 3,690 tokens per session scan A 3def9e5e3ba0

Subscribe to this mod's changes

leaderboard-frontend CLAUDE.md is an instructions file published in the GitHub repository embeddings-benchmark/leaderboard-frontend (2 stars, last pushed 13d ago), licensed Apache-2.0. It adds 3,690 tokens to every session, about $0.0148 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 2026-08-31.

leaderboard-frontend CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
leaderboard-frontend CLAUDE.mdembeddings-benchmark/leaderboard-frontend	Instructions file	2	13d ago	Apache-2.0	A	3,690	Claude Code
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leaderboard-frontend: Instructions file for Claude Code