dms-schema-conversion

dms-schema-conversion is a skill for Claude Code, Codex from aws/agent-toolkit-for-aws. It costs 74 tokens per session (5,208 once invoked), scanned A, original, Apache-2.0.

A guide for converting one database schema—the structure of tables, columns, and other database objects—for use with a different database engine. It uses AWS DMS Schema Conversion to assess compatibility and produce or apply the required SQL changes.

In plain words
What is it for?
Use it to create migration projects, run compatibility assessments, convert schemas and SQL statements, rename objects with transformation rules, export converted DDL to S3, and apply changes to a target database.
Why use it?
It helps reveal incompatibilities and reduces the manual work involved in moving database structures between different systems.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths; names the AskUserQuestion tool.

Good fit Use it to create migration projects, run compatibility assessments, convert schemas and SQL statements, rename objects with transformation rules, export converted DDL to S3, and apply changes to a target database.

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Install with agentmods
npx agentmods add skills/aws/agent-toolkit-for-aws/dms-schema-conversion
About the project

Agent Toolkit for AWS is a collection of AWS-supported MCP servers, skills, plugins, commands, and hooks that help AI coding agents build, deploy, and manage applications on AWS. It is used by developers working with AWS services through agents such as Claude Code, Codex, Cursor, and Kiro. The catalogue entries are the toolkit's own agent extensions for AWS development and operations.

aws/agent-toolkit-for-aws · 2,569 stars · on GitHub

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.

Any agent
npx skills add aws/agent-toolkit-for-aws --skill dms-schema-conversion
Clone the repo
git clone --depth 1 https://github.com/aws/agent-toolkit-for-aws

Made for: Claude Code, Codex.

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.

agentmods badge for dms-schema-conversion

README.md
[![agentmods](https://agentmods.dev/badge/skills/aws/agent-toolkit-for-aws/dms-schema-conversion/github.svg)](https://agentmods.dev/skills/aws/agent-toolkit-for-aws/dms-schema-conversion)
Your own site
<a href="https://agentmods.dev/skills/aws/agent-toolkit-for-aws/dms-schema-conversion"><img src="https://agentmods.dev/badge/skills/aws/agent-toolkit-for-aws/dms-schema-conversion/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.

agentmods 80×15 button for dms-schema-conversion

Your own site · 80×15
<a href="https://agentmods.dev/skills/aws/agent-toolkit-for-aws/dms-schema-conversion"><img src="https://agentmods.dev/badge/skills/aws/agent-toolkit-for-aws/dms-schema-conversion.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,208 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. Third-party audits
  • Socket pass 14 Aug 2026
  • Snyk warn 14 Aug 2026
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 4 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Data Exfiltration · line 132
    Data is uploaded to cloud storage (S3 / GCS / Azure Blob). This may be a legitimate backup or exfiltration to an external bucket. Manual review is recommended.
    Fix: Verify the destination bucket is trusted and owned by you. Never upload credentials, secrets, or workspace contents to external or unverified cloud storage.
  • medium Data Exfiltration · line 174
    Data is uploaded to cloud storage (S3 / GCS / Azure Blob). This may be a legitimate backup or exfiltration to an external bucket. Manual review is recommended.
    Fix: Verify the destination bucket is trusted and owned by you. Never upload credentials, secrets, or workspace contents to external or unverified cloud storage.
  • medium Data Exfiltration · line 269
    Data is uploaded to cloud storage (S3 / GCS / Azure Blob). This may be a legitimate backup or exfiltration to an external bucket. Manual review is recommended.
    Fix: Verify the destination bucket is trusted and owned by you. Never upload credentials, secrets, or workspace contents to external or unverified cloud storage.
  • medium Excessive Agency · line 209
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
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 5.1 $0.00074 $0.05208
Opus 5 $0.00037 $0.02604
Sonnet 5 $0.00015 $0.01042
Haiku 4.5 $0.00007 $0.00521

Measured 6d ago against content hash b45708fae524, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

dms-schema-conversion 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 6d 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.

skills/specialized-skills/migration-and-modernization-skills/dms-schema-conversion/SKILL.md · 362 lines

How it starts

The opening of the file, as written. The whole thing — 362 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DMS Schema Conversion

Overview

This skill handles the full DMS Schema Conversion lifecycle — from first-time setup to running conversions on an existing project.

The AWS MCP server is recommended for streamlined execution, audit logging, and observability. When the MCP server is not available, all operations can be performed via AWS CLI directly.

Key documentation:

Global constraint: You MUST fetch and read any linked documentation before acting on it — do NOT rely on memory for any referenced material (selection rules, transformation rules, troubleshooting guides, network configuration, etc.). Documentation contains vendor-specific details that change between engines and API versions.


Guardrail — where this skill's own files live (MCP vs local install)

This skill can be loaded two ways, and they resolve the skill's own bundled files from different places. Determine how the skill was loaded before reading a reference:

  • Loaded through the AWS MCP retrieve_skill tool: The skill is not installed on the local filesystem. You MUST fetch each reference via retrieve_skill with the file parameter (e.g. file="references/setup-wizard.md"). Do NOT file_read these paths locally — they do not exist on disk.
  • Installed locally (e.g. .kiro/skills/dms-schema-conversion/ or ~/.claude/skills/dms-schema-conversion/): Read files from the local skill directory using relative paths.

This distinction applies only to the skill's own packaged files. User data and session artifacts are always read from and written to the user's working directory. Never fetch or write customer data through retrieve_skill.

Read the full file on GitHub · 362 lines

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 6d ago First seen · 362 lines · 74 tokens per session scan A b45708fae524

Subscribe to this mod's changes

dms-schema-conversion is a skill published in the GitHub repository aws/agent-toolkit-for-aws (2,569 stars, last pushed yesterday), licensed Apache-2.0. It adds 74 tokens to every session and 5,208 once invoked, about $0.0004 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 2026-09-03.

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