A competing coding agent focused on fast, memory-efficient R code for large raster and vector datasets.

Use it as an alternative coder for R tasks involving large raster or vector data.

It is intended to reduce memory use and execution time when processing large geographic or other spatial datasets.

How eco-emma/emma_envdata configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to eco-emma/emma_envdata. 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/eco-emma/emma_envdata/main/.claude/agents/coder-beta.md

Clone the repo

git clone --depth 1 https://github.com/eco-emma/emma_envdata

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/agents/eco-emma/emma_envdata/coder-beta/github.svg)](https://agentmods.dev/agents/eco-emma/emma_envdata/coder-beta)

Your own site

<a href="https://agentmods.dev/agents/eco-emma/emma_envdata/coder-beta"><img src="https://agentmods.dev/badge/agents/eco-emma/emma_envdata/coder-beta/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/agents/eco-emma/emma_envdata/coder-beta"><img src="https://agentmods.dev/badge/agents/eco-emma/emma_envdata/coder-beta.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 123 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown 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	$0.00035	$0.00123
Opus 5.5	$0.00014	$0.00049
Sonnet 5.5	$0.00007	$0.00025
Haiku 4.5	$0.00003	$0.00012

Measured 2mo ago against content hash 46c2ca1f58c8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

coder-beta 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/agents/coder-beta.md · 12 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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 · 12 lines · 35 tokens per session scan A 46c2ca1f58c8

Subscribe to this mod's changes

coder-beta is an agent published in the GitHub repository eco-emma/emma_envdata (9 stars, last pushed 14d ago), with no licence file. It adds 35 tokens to every session and 123 once invoked, about $0.0001 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 2026-09-04.

Data and AI Languages Python

coder-beta next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
coder-betaeco-emma/emma_envdata	Agent	9	14d ago	none	A	35	Claude Code
mcp-developerpjt222/agent-almanac	Agent	43	yesterday	MIT	A	27	Claude Code
python-data-engineerandisab/swe-marketplace	Agent	21	yesterday	MIT	A	48	Claude Code
ciel-intelligence-guildjxoesneon/Ciel	Agent	1	7d ago	Apache-2.0	A	29	Claude Code
pandas-expert0xfurai/claude-code-subagents	Agent	1.0k	1y ago	MIT	A	17	Claude Code
python-notebook-sample-builderasleekgeek/claude-multiagent-catalogue	Agent	2	5mo ago	none	A	24	Claude Code
playwright-test-generatormicrosoft/playwright	Agent	99k	yesterday	Apache-2.0	A	151	Claude Code

emma_envdata: Agent for Claude Code