metadome-link: Instructions file for Claude Code

CLAUDE.md

metadome-link CLAUDE.md is an instructions file for Claude Code from berntpopp/metadome-link. It costs 1,389 tokens per session, scanned A, original, MIT.

A set of instructions for coding agents working on metadome-link, a read-only service that retrieves genetic-variant information from MetaDome. It explains the repository’s architecture, rules, commands, and documentation.

In plain words
What is it for?
Understanding the service’s data and MCP layers, following repository conventions, and working with its live API and caches.
Why use it?
It gives agents the project context and non-negotiable rules they need before changing or reviewing code.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is berntpopp/metadome-link's own configuration. It tells Claude Code how to work on metadome-link 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 metadome-link configures →

Reuse

Borrowing it

Nothing to install: this file belongs to berntpopp/metadome-link. 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/berntpopp/metadome-link/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/berntpopp/metadome-link

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 metadome-link CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/berntpopp/metadome-link/claude-md.svg)](https://agentmods.dev/instructions/berntpopp/metadome-link/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/berntpopp/metadome-link/claude-md"><img src="https://agentmods.dev/badge/instructions/berntpopp/metadome-link/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,389 This file is loaded in full into every session.
When invoked 1,389 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01389 $0.01389
Opus 5 $0.00694 $0.00694
Sonnet 5 $0.00278 $0.00278
Haiku 4.5 $0.00139 $0.00139

Measured 4d ago against content hash b42e99047fe3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

metadome-link 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 4d 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 · 93 lines

How it starts

The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file orients Claude Code (and other agents) in this repository.

Read AGENTS.md first — it is the authoritative contributor and agent guide (architecture, invariants, conventions, definition of done). This file only highlights the essentials.

Essentials

  • metadome-link is a data-reading MCP + REST server with an idempotent build trigger that wraps the MetaDome web service: per-residue missense tolerance landscapes (sw_dn_ds), Pfam domains, meta-domain homolog variant aggregation, and per-residue ClinVar annotations. MetaDome does not expose true per-residue gnomAD counts; Pfam aggregates may span genes (GRCh37/hg19 or GRCh38.p14; default GRCh38.p14). One backend in the GeneFoundry -link fleet.
  • Two planes: the data plane (config/constants/identifiers/api/cache/ services) calls MetaDome over async httpx, normalizes, and returns plain dicts; the MCP plane (mcp/) is domain-agnostic scaffolding (lifted from mondo-link) where run_mcp_tool owns success/_meta and returns structured errors (never raised). There is no ingest/ / no local index — this is a live-API proxy with a persistent on-disk result cache + in-memory TTL.
  • Async model: explicit request + poll split (request_tolerance_landscapeget_tolerance_landscape); status:"processing" is a first-class success state. Cold builds can take ~1 h; the poll loop never blocks past a soft deadline.
  • Invariants: every compact+ (default) response carries _meta.next_commands (minimal retains _meta = {tool, request_id, data_versions, unsafe_for_clinical_use}); _meta.data_versions is ALWAYS present; 6-code error taxonomy; each tool has an output_schema plus the appropriate read-only or compute annotation and a first sentence ending Signature: tool(args...); keep capabilities.TOOLS (11 names) in sync; validate transcript ids in identifiers.py (require the .N version); cite Wiel et al. 2019.
  • Definition of done: make ci-local green (format-check, lint-ci, lint-loc ≤500 lines/file, mypy strict, tests ≥80% coverage).
  • structlog → stderr only; stdout is reserved for the stdio MCP protocol.

Read the full file on GitHub · 93 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. 4d ago Changed · +16 lines · +277 tokens per session b42e99047fe3
  2. 7d ago First seen · 77 lines · 1,112 tokens per session scan A d731f2bd1767

Subscribe to this mod's changes

metadome-link CLAUDE.md is an instructions file published in the GitHub repository berntpopp/metadome-link (0 stars, last pushed yesterday), licensed MIT. It adds 1,389 tokens to every session, about $0.0069 per session on Opus 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.

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