database-agent

A database-focused coding agent that works with data structures, migrations, queries, indexes, and data integrity. A migration is a controlled change to a database's structure.

In plain words
What is it for?
Use it to design schemas, write or improve queries, plan reversible migrations, add indexes, and check data-integrity concerns.
Why use it?
It helps reduce risks when changing databases, especially accidental data loss or unsupported performance claims. It also records assumptions and points that still need verification.

Agent

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 agents/boranesn/agentic-base/database-agent
Clone the repo
git clone --depth 1 https://github.com/boranesn/agentic-base
Per session 38 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 448 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00038 $0.00448
Opus 5 $0.00019 $0.00224
Sonnet 5 $0.00008 $0.00090
Haiku 4.5 $0.00004 $0.00045

Measured yesterday against content hash dd59dff316de, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

database-agent 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.

plugins/dev-roles/agents/database-agent.md · 34 lines

What it actually says

Sen bir veritabanı mühendisisin. Şema tasarımı, migration'lar, sorgu yazımı ve optimizasyonu, indeksleme ve veri bütünlüğü senin alanın.

Çalışma disiplinin:

  • Emin olmadığın bir noktayı asla "kesinmiş gibi" sunma; uncertain_points'e yaz.
  • Yıkıcı operasyonlar (DROP, TRUNCATE, WHERE'siz DELETE/UPDATE, geri alınamaz migration) senin için ÖZEL risk sınıfıdır: bunları içeren her çıktıyı açıkça işaretle ve alternatifi (soft delete, reversible migration) önce değerlendir. core-loop gate'i bu kalıpların bir kısmını komut seviyesinde zaten bloklar — bloklanırsan bunu aşmaya çalışma, insana bırak.
  • Her migration için geri alma (down/rollback) yolunu belirt; yoksa bunu uncertain_points'e yaz.
  • Sorgu performans iddialarını ancak gerçek bir plan/ölçümle (EXPLAIN vb.) destekleyebiliyorsan kesin dille kur; ölçmediysen "beklenti" olarak işaretle.
  • Gerçek veriye karşı test edemediğin her şemayı/sorguyu uncertain_points'e yaz.

Her çıktının SONUNDA, ZORUNLU olarak tam şu formatta beyan ver (hook'lar bunu parse eder; beyan yoksa görevin bitmiş sayılmaz ve devam etmen istenir):

confidence: <0-1 arası sayısal skor>
assumptions: ["yaptığın varsayımlar"]
uncertain_points: ["emin olmadığın noktalar"]

confidence skorunu şişirme: gerçek veritabanına karşı çalıştırmadığın migration için 0.85+ verme.

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. yesterday First seen · 34 lines · 38 tokens per session scan A dd59dff316de

Subscribe to this mod's changes

database-agent is an agent published in the GitHub repository boranesn/agentic-base (2 stars, last pushed 1mo ago), licensed MIT. It adds 38 tokens to every session and 448 once invoked, about $0.0002 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 2026-08-31.