pyo_oracle: Instructions file for Claude Code

CLAUDE.md

pyo_oracle CLAUDE.md is an instructions file for Claude Code from bio-oracle/pyo_oracle. It costs 803 tokens per session, scanned A, original, MIT.

Repository guidance for pyo_oracle, a Python client that retrieves ocean and climate data from the Bio-ORACLE ERDDAP server. ERDDAP is a web service for finding and downloading scientific datasets; the file also describes the project layout, public functions, tests, and documentation.

In plain words
What is it for?
Use it when developing, testing, documenting, or reviewing pyo_oracle, including layer listing, metadata lookup, data loading, downloading, and local-data management.
Why use it?
It gives coding agents the project context needed to change the Python client without breaking its public interface or its matching R package.

Instructions file for Claude Code

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

This is bio-oracle/pyo_oracle's own configuration. It tells Claude Code how to work on pyo_oracle 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 pyo_oracle configures →

Reuse

Borrowing it

Nothing to install: this file belongs to bio-oracle/pyo_oracle. 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/bio-oracle/pyo_oracle/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/bio-oracle/pyo_oracle

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 pyo_oracle CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/bio-oracle/pyo_oracle/claude-md.svg)](https://agentmods.dev/instructions/bio-oracle/pyo_oracle/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/bio-oracle/pyo_oracle/claude-md"><img src="https://agentmods.dev/badge/instructions/bio-oracle/pyo_oracle/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 803 This file is loaded in full into every session.
When invoked 803 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 $0.00803 $0.00803
Opus 5 $0.00402 $0.00402
Sonnet 5 $0.00161 $0.00161
Haiku 4.5 $0.00080 $0.00080

Measured 7d ago against content hash c745d68d73bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

pyo_oracle 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 7d 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 · 78 lines

How it starts

The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Guidance for working in this repository.

What this is

pyo_oracle is the Python client for the Bio-ORACLE ERDDAP server (https://erddap.bio-oracle.org/erddap/). It is the Python counterpart of the R package biooracler and is built on top of erddapy.

Layout

  • pyo_oracle/__init__.py — public namespace; re-exports the API.
  • pyo_oracle/main.py — public functions: list_layers, info_layer, load_layer, download_layers, list_local_data.
  • pyo_oracle/utils.py — internals: _build_griddap_server (the single shared griddap setup path), _layer_info, _layer_dataframe, build_constraints, _as_bool, download helpers.
  • pyo_oracle/_config.py — configparser-based config (data dir, server URL, skip_confirmation). config.ini is generated and git-ignored.
  • tests/test_utils.py (offline), test_main.py (mostly live), test_config.py.
  • docs/ + mkdocs.yml — MkDocs Material site (mkdocstrings API ref).

Public API parity with biooracler

list_layers, info_layer, download_layers mirror the R package. Python adds load_layer (in-memory pandas/xarray) and build_constraints (friendly subsetting helper).

Dev environment

All development happens in the conda env named pyo_oracle:

conda env create -n pyo_oracle -f environment-dev.yaml   # or `mamba`
conda activate pyo_oracle
pip install -e ".[dev,xarray,docs]"

Tests

Two kinds, separated by the integration marker:

pytest -m "not integration"   # offline unit tests (fast, used in CI by default)
pytest                        # full suite incl. tests that hit the live server
pytest -m integration         # only the live-server tests

The exit goal for changes is a fully green pytest in the pyo_oracle env.

Lint & docs

ruff check pyo_oracle tests
mkdocs serve          # live preview
mkdocs build --strict # must pass (CI deploys to GitHub Pages)

Read the full file on GitHub · 78 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. 7d ago First seen · 78 lines · 803 tokens per session scan A c745d68d73bc

Subscribe to this mod's changes

pyo_oracle CLAUDE.md is an instructions file published in the GitHub repository bio-oracle/pyo_oracle (5 stars, last pushed 2mo ago), licensed MIT. It adds 803 tokens to every session, about $0.0040 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.

Related

Other instructions, from other repositories

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,182 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,469 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 tokens

spec-kit AGENTS.md

AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.

github/spec-kit · 7,104 tokens