er-server AGENTS.md

Project instructions for EarthRanger, a Django web application for wildlife conservation and operational monitoring. They describe its apps, technologies, and overall architecture.

In plain words
What is it for?
They support work on accounts, events, animal tracking, mapping, sensor data, background jobs, APIs, reports, and tests using the project's documented tools.
Why use it?
They help an agent understand where features belong in a large system that handles animals, patrols, alerts, maps, sensors, and reports.

Instructions file for CodexOpenCode

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 instructions/padas/er-server/agents-md
Clone the repo
git clone --depth 1 https://github.com/PADAS/er-server

Made for: Codex, OpenCode.

Per session 992 This file is loaded in full into every session.
When invoked 992 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00992 $0.00992
Opus 5 $0.00496 $0.00496
Sonnet 5 $0.00198 $0.00198
Haiku 4.5 $0.00099 $0.00099

Measured 2d ago against content hash 17bf8bb120d6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

er-server AGENTS.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 2d 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.

AGENTS.md · 100 lines

How it starts

The opening of the file, as written. The whole thing — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md


description: globs: alwaysApply: true

Project Overview

EarthRanger (DAS - Domain Awareness System) is a Django-based web application for wildlife conservation and domain awareness. This is a multi-tenant system that tracks wildlife, manages events, handles patrols, and provides real-time monitoring capabilities.

Architecture Overview

Architecture Documentation

Django Apps Structure

  • accounts/ - User management, permissions, and authentication
  • activity/ - Events, patrols, and alerting system
  • observations/ - Animal tracking, GPS data, and subject management
  • mapping/ - GIS integration, spatial data, and map services
  • sensors/ - IoT device handlers and data ingestion
  • analyzers/ - Real-time analysis (geofencing, proximity, immobility detection)
  • tracking/ - Source plugins for various GPS/telemetry providers
  • reports/ - Report generation and data distribution
  • utils/ - Shared utilities and common functionality

Key Technologies

  • Django 3.2
  • Django REST Framework (for API development)
  • python 3.10
  • pytest for unittesting
  • Celery (for background tasks)
  • Redis (for caching and task queues)
  • PostgreSQL 16
  • Docker and Kubernetes for deployment

Multi-Tenant Architecture

This system is multi-tenant aware. Most models have a das_tenant field that isolates data between tenants.

Key considerations:

  • Data isolation at the database level
  • Tenant context in requests and background tasks
  • Tenant-specific configurations and permissions
  • Cross-tenant queries require special authorization

Configuration

Settings Structure

  • das_server/settings.py - Base settings
  • das_server/local_settings_docker.py - Local development and prod overrides
  • Environment variables configured via .env file for local overrides

Key Environment Variables

  • DJANGO_SETTINGS_MODULE - Points to settings module
  • Database configuration via django-environ
  • DEBUG and DEV flags for development mode

Read the full file on GitHub · 100 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. 2d ago First seen · 100 lines · 992 tokens per session scan A 17bf8bb120d6

Subscribe to this mod's changes

er-server AGENTS.md is an instructions file published in the GitHub repository PADAS/er-server (11 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 992 tokens to every session, about $0.0050 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 2026-08-30.

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