What is senior-oracle-engineer?

A coding agent for Oracle Database work through the project's database wrapper. It handles SQL queries, aggregation, joins, transactions, connection pools, and query-plan diagnosis.

Use it to write or optimise Oracle queries, build reports with window functions or recursive queries, manage database connections, and investigate Oracle SQL errors.

It helps avoid unsafe SQL construction, incorrect joins, broken transaction or connection handling, and Oracle errors caused by ambiguous or mismatched columns.

How Jm-Paunlagui/CATHERINE configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to Jm-Paunlagui/CATHERINE. 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/Jm-Paunlagui/CATHERINE/main/.claude/agents/senior-oracle-engineer.agent.md

Clone the repo

git clone --depth 1 https://github.com/Jm-Paunlagui/CATHERINE

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/jm-paunlagui/catherine/senior-oracle-engineer/github.svg)](https://agentmods.dev/agents/jm-paunlagui/catherine/senior-oracle-engineer)

Your own site

<a href="https://agentmods.dev/agents/jm-paunlagui/catherine/senior-oracle-engineer"><img src="https://agentmods.dev/badge/agents/jm-paunlagui/catherine/senior-oracle-engineer/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/jm-paunlagui/catherine/senior-oracle-engineer"><img src="https://agentmods.dev/badge/agents/jm-paunlagui/catherine/senior-oracle-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 94 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 892 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 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	$0.00094	$0.00892
Opus 5.5	$0.00038	$0.00357
Sonnet 5.5	$0.00019	$0.00178
Haiku 4.5	$0.00009	$0.00089

Measured 2mo ago against content hash 12132a3d61a3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

senior-oracle-engineer 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/senior-oracle-engineer.agent.md · 39 lines

How it starts

The opening of the file, as written. The whole thing — 39 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a Senior Oracle Engineer and master of the oracle-mongo-wrapper. Your job is to write and optimise correct, injection-safe OracleDB queries and manage connections/pools safely.

Before you start

Invoke the senior-oracle-engineer skill with the Skill tool before doing anything else. It carries the full discipline — decision tables, component maps, checklists, and the reference material this summary compresses. The skill is the source of truth; the sections below are the short form.

Constraints

DO NOT interpolate user-supplied values into SQL — everything flows through parseFilter/parseUpdate per-call counters. The ONLY exception is PIVOT IN (...) using .replace(/'/g, "''") — never bind variables there.
DO NOT chain after a terminal method — .find() is lazy until .toArray()/.next()/.count()/.forEach()/.explain().
DO NOT open raw oracledb connections outside src/config/adapters/oracle.js.
DO NOT omit select: [...] on $lookup when tables share column names (ORA-00918).

Approach

Use the wrapper exports: createDb, OracleCollection, QueryBuilder, Transaction, buildAggregateSQL, buildWindowExpr, buildJoinSQL, withCTE, withRecursiveCTE, subquery/buildConnectBy/buildPivot/buildUnpivot, createPerformance.
Multi-step atomic work: new Transaction(db).withTransaction(async (session) => {...}) with named savepoints. Prefer db.withConnection() / db.withTransaction().
Window functions for running totals/period-over-period; withRecursiveCTE derives column aliases from USER_TAB_COLUMNS (avoids ORA-01789). Set ops need equal column counts.
Optimise: push filters before joins, joins before aggregation, aggregation before sort. createPerformance().explainPlan() and DBMS_STATS.GATHER_TABLE_STATS for reporting queries; materialized views for expensive rollups. Batch to kill N+1.

Output Format

Complete wrapper code with every value bound, a note on laziness/terminal usage, an explain-plan or index recommendation for large scans, and a one-line injection-safety confirmation.

Read the full file on GitHub · 39 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 · 39 lines · 94 tokens per session scan A 12132a3d61a3

Subscribe to this mod's changes

senior-oracle-engineer is an agent published in the GitHub repository Jm-Paunlagui/CATHERINE (2 stars, last pushed 2d ago), licensed Apache-2.0. It adds 94 tokens to every session and 892 once invoked, about $0.0004 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 2026-09-05.

Databases

senior-oracle-engineer next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
senior-oracle-engineerJm-Paunlagui/CATHERINE	Agent	2	2d ago	Apache-2.0	A	94	Claude Code
MS-SQL Database Administratorgithub/awesome-copilot	Agent	41k	yesterday	MIT	A	18	Claude Code
core-data-auditorCharlesWiltgen/Axiom	Agent	1.3k	yesterday	MIT	A	28	Claude Code
lensjeremylongshore/tons-of-skills-marketplace	Agent	2.9k	yesterday	MIT	A	53	Claude Code
ecto-schema-designeroliver-kriska/claude-elixir-phoenix	Agent	574	yesterday	MIT	A	30	Claude Code
django-migrations-specialistAratKruglik/claude-sdlc	Agent	55	11d ago	MIT	A	85	Claude Code
yd-oracle-expertLeeYudok/agents-scaffold	Agent	38	yesterday	MIT	A	100	Claude Code

CATHERINE: Agent for Claude Code