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/incubator-xtable/agents-mdgit clone --depth 1 https://github.com/apache/incubator-xtableWhat 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 | $0.01691 | $0.01691 |
| Opus 5 | $0.00846 | $0.00846 |
| Sonnet 5 | $0.00338 | $0.00338 |
| Haiku 4.5 | $0.00169 | $0.00169 |
Grade A, and why
incubator-xtable 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 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 — 202 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Apache XTable Agent Guide
This file gives repository-specific instructions for agents working in this repo.
Scope
- Applies to the whole repository unless a deeper
AGENTS.mdis added later.
Repo Structure
xtable-api: shared public interfaces and SPI contracts.xtable-core: core conversion logic, sync flow, and common implementation code.xtable-hudi-support: Hudi-specific support modules, including shaded extensions underxtable-hudi-support-extensions.xtable-utilities: bundled CLI and shaded distribution jar.xtable-aws: AWS-related shaded support dependencies.xtable-hive-metastore: Hive Metastore shaded support dependencies.xtable-service: service-layer code.release/scripts: release and compliance automation, including shaded license tooling.specandrfc: design docs and proposal material.website: project site content.
When changing code, prefer to work in the narrowest module that owns the behavior. If a change crosses module boundaries, verify all affected modules instead of only the top-level caller.
Common Validation
Use Java 11 for local Maven work.
Common commands:
./mvnw test
./mvnw verify
./mvnw spotless:check
./mvnw spotless:apply
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 · 202 lines · 1,691 tokens per session scan A ed5afda0b71f
incubator-xtable AGENTS.md is an instructions file published in the GitHub repository apache/incubator-xtable (1,212 stars, last pushed 2d ago), licensed Apache-2.0. It adds 1,691 tokens to every session, about $0.0085 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
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Instructions for edwinweber/dbt_duckdb_demo_public, covering claude.md — project context for ai assistants, project overview, tech stack, architecture and directory structure.
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