What is DBchat AGENTS.md?

A repository guide for DBChat, a Java 17 Maven project that includes an MCP server, database services, tests, and build scripts.

Use it when developing DBChat, locating source and test files, selecting database build profiles, running the server, or executing protocol and integration tests.

It gives contributors the project layout, naming and architecture conventions, and the commands needed to build, run, and test the code.

How skanga/DBchat configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to skanga/DBchat. 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/skanga/DBchat/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/skanga/DBchat

Made for: Codex, OpenCode.

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/instructions/skanga/dbchat/agents-md/github.svg)](https://agentmods.dev/instructions/skanga/dbchat/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/skanga/dbchat/agents-md"><img src="https://agentmods.dev/badge/instructions/skanga/dbchat/agents-md/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/instructions/skanga/dbchat/agents-md"><img src="https://agentmods.dev/badge/instructions/skanga/dbchat/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 676 This file is loaded in full into every session.

When invoked 676 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.

Model	Per session	Once invoked
Fable 5.1	$0.00676	$0.00676
Opus 5.5	$0.00270	$0.00270
Sonnet 5.5	$0.00135	$0.00135
Haiku 4.5	$0.00068	$0.00068

Measured 2mo ago against content hash ea8275be6396, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

DBchat 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 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.

AGENTS.md · 65 lines

How it starts

The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Guidelines

Project Structure & Module Organization

DBChat is a Maven-based Java 17 project. Key locations:

src/main/java/com/skanga/mcp: MCP server, HTTP handler, config, DB services, prompts, workflows, insights.
src/main/java/com/skanga/demo and src/main/java/com/skanga/init: demo data and client config helpers.
src/main/resources: runtime resources (optional config).
src/test/java/com/skanga: JUnit 5 tests, integration tests, and performance tests.
build.sh, release.sh, RELEASE.bat: build/release helpers.
test-mcp-protocol.py, test-mcp-server.py: protocol smoke tests.
target/: Maven build output (generated).

Build, Test, and Development Commands

Common workflows use Maven profiles for DB driver variants:

mvn clean package                    # default drivers
mvn clean package -P standard-databases
./build.sh standard --skip-tests     # scripted build variants

Run locally with a config file or env vars:

java -jar target/dbchat-4.0.0.jar --config_file=dbchat.conf

Architecture Overview

DBChat is an MCP server that runs in stdio or HTTP mode. McpServer and McpHttpHandler accept JSON-RPC, route calls to services, and return typed responses. Core services include:

db package for JDBC access and resource discovery.
prompts, workflow, and insights for structured prompts, multi-step workflows, and captured analysis.
config for CLI/env/config parsing and resource management.

Coding Style & Naming Conventions

Java 17, 4-space indentation, keep packages under com.skanga.
Classes use PascalCase, methods/fields use camelCase.
Tests end in *Test.java, integration tests use *IntegrationTest.java.
Follow the Google Java Style guidance referenced in INSTALL.md.

Testing Guidelines

Frameworks: JUnit 5, Mockito, AssertJ, Testcontainers, and JaCoCo coverage.

mvn test
mvn test -Dtest=McpServerTest
mvn verify -P standard-databases

Maintain the existing high coverage (documentation cites ~90% lines) and add tests for new behavior or bug fixes.

Read the full file on GitHub · 65 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.

2mo ago First seen · 65 lines · 676 tokens per session scan A ea8275be6396

Subscribe to this mod's changes

DBchat AGENTS.md is an instructions file published in the GitHub repository skanga/DBchat (96 stars, last pushed 7mo ago), licensed Apache-2.0. It adds 676 tokens to every session, about $0.0027 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 2026-08-30.

DBchat AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
DBchat AGENTS.mdskanga/DBchat	Instructions file	96	7mo ago	Apache-2.0	A	676	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

DBchat: Instructions file for Codex