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.
npx agentmods add instructions/apache/iotdb/claude-mdgit clone --depth 1 https://github.com/apache/iotdbWhat 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 | $0.03698 | $0.03698 |
| Opus 5 | $0.01849 | $0.01849 |
| Sonnet 5 | $0.00740 | $0.00740 |
| Haiku 4.5 | $0.00370 | $0.00370 |
Grade A, and why
iotdb 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 206 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
Apache IoTDB is a time series database for IoT data. It uses a distributed architecture with ConfigNodes (metadata/coordination) and DataNodes (storage/query). Data is stored in TsFile columnar format (separate repo: https://github.com/apache/tsfile). Current version is 2.0.11-SNAPSHOT.
Build Commands
# Full build (skip tests)
mvn clean package -pl distribution -am -DskipTests
# Build a specific module (e.g., datanode)
mvn clean package -pl iotdb-core/datanode -am -DskipTests
# Run unit tests for a specific module
mvn clean test -pl iotdb-core/datanode
# Run a single test class
mvn clean test -pl iotdb-core/datanode -Dtest=ClassName
# Run a single test method
mvn clean test -pl iotdb-core/datanode -Dtest=ClassName#methodName
# Build with Chinese log & error messages
mvn clean package -pl distribution -am -DskipTests -P with-zh-locale
# Format code (requires JDK 17+; auto-skipped on JDK <17)
mvn spotless:apply
# Format code in integration-test module
mvn spotless:apply -P with-integration-tests
# Check formatting without applying
mvn spotless:check
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.
- yesterday First seen · 206 lines · 3,698 tokens per session scan A aa57e9a936bb
iotdb CLAUDE.md is an instructions file published in the GitHub repository apache/iotdb (6,386 stars, last pushed 2d ago), licensed Apache-2.0. It adds 3,698 tokens to every session, about $0.0185 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.
Other instructions, from other repositories
iot-dc3 AGENTS.md
AGENTS.md instructions for pnoker/iot-dc3, covering agents.md, scope and precedence, sources of truth, project overview and repository map.
iot-dc3 CLAUDE.md
Claude Code instructions for pnoker/iot-dc3: This file provides guidance to AI coding assistants when working with code in this repository.
Cobalt CLAUDE.md
Instructions for Auties00/Cobalt, covering cobalt, build, maven modules, architecture and client hierarchy.
imgui-java CLAUDE.md
Instructions for SpaiR/imgui-java: This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
SHAFT_ENGINE CLAUDE.md
Claude Code instructions for ShaftHQ/SHAFT_ENGINE, covering claude adapter and graphify.
toBeBetterJavaer AGENTS.md
AGENTS.md instructions for itwanger/toBeBetterJavaer, covering 工具权限设置, 工具使用规则, 获取网页内容 and 图片生成 / 文章配图.