realm-migration-ref

realm-migration-ref is a skill for Claude Code from IGTA-Tech/claude-skills-research. It costs 38 tokens per session (5,160 once invoked), scanned A, original, no licence file.

A migration guide for moving an iPhone or iPad app from Realm, a database framework, to SwiftData, Apple's newer data-storage framework.

In plain words
What is it for?
Use it to plan and carry out a Realm-to-SwiftData migration, including schema changes, syncing changes, and common real-world cases.
Why use it?
It explains how to replace Realm's data patterns, handle changes in how work runs across threads, migrate stored data, and move CloudKit syncing without guessing at the differences.

Skill for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Part of the axiom plugin — 90 skills, 7 commands, 21 agents, 4 hooks shipped together

Good fit Use it to plan and carry out a Realm-to-SwiftData migration, including schema changes, syncing changes, and common real-world cases.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/igta-tech/claude-skills-research/realm-migration-ref
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 IGTA-Tech/claude-skills-research --skill realm-migration-ref
Clone the repo
git clone --depth 1 https://github.com/IGTA-Tech/claude-skills-research

Made for: Claude Code.

Or install axiom, the plugin that ships this one along with the rest of its 90 skills, 7 commands, 21 agents, 4 hooks.

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 realm-migration-ref

README.md
[![agentmods](https://agentmods.dev/badge/skills/igta-tech/claude-skills-research/realm-migration-ref/github.svg)](https://agentmods.dev/skills/igta-tech/claude-skills-research/realm-migration-ref)
Your own site
<a href="https://agentmods.dev/skills/igta-tech/claude-skills-research/realm-migration-ref"><img src="https://agentmods.dev/badge/skills/igta-tech/claude-skills-research/realm-migration-ref/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 realm-migration-ref

Your own site · 80×15
<a href="https://agentmods.dev/skills/igta-tech/claude-skills-research/realm-migration-ref"><img src="https://agentmods.dev/badge/skills/igta-tech/claude-skills-research/realm-migration-ref.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,160 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00038 $0.05160
Opus 5.5 $0.00015 $0.02064
Sonnet 5.5 $0.00008 $0.01032
Haiku 4.5 $0.00004 $0.00516

Measured 1mo ago against content hash 21a981fac889, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

realm-migration-ref scanned grade A with 1 finding 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 1mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

return (try? context.fetch(descriptor)) ?? []
Axiom/.claude-plugin/plugins/axiom/skills/realm-migration-ref/SKILL.md · 794 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 1mo ago First seen · 794 lines · 38 tokens per session scan A 21a981fac889

Subscribe to this mod's changes

realm-migration-ref is a skill published in the GitHub repository IGTA-Tech/claude-skills-research (2 stars, last pushed 21d ago), with no licence file. It adds 38 tokens to every session and 5,160 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Related

Other skills, from other repositories

create-pr

Creates a GitHub PR with a Linear-ticket-prefixed title and a decision-led, narrative description for Prisma 8. Use when the user wants to create a pull request, open a PR, or submit changes for review.

prisma/orm · 48 tokens

schema-exploration

Lists tables, describes columns and data types, identifies foreign key relationships, and maps entity relationships in a database. Use when the user asks about database schema, table structure, column types, what tables exist, ERD, foreign keys, or how entities relate.

langchain-ai/deepagents · 57 tokens

atlas-mssql

SQL Server specifics for Atlas (also Azure SQL and MSSQL): login, dev database and URL scope (mode=schema vs mode=database, the database query parameter), compatibility level and collation, system-generated constraint names, clustered index defaults and datetime2 precision in HCL, GO batches and the delimiter…

ariga/atlas · 147 tokens

ha-data-stores

Map of Hope Agent's local data stores and safe read-only query workflow. Use when the user asks where Hope Agent stores data, wants to inspect sessions/messages/memory/logs/background jobs/knowledge indexes/settings, asks the model to query local app data, or debugging requires checking persisted state. Trigger…

shiwenwen/hope-agent · 115 tokens

nornicdb-cypher-queries

Pick fast, predictable Cypher query shapes in NornicDB — point lookups, batch retrieval, pagination, search, traversal, batched UNWIND/MERGE writes, cleanup, multi-tenant isolation. Use when writing or reviewing Cypher whose latency or throughput matters; maps user intent to the executor's hot-path query templates.

orneryd/NornicDB · 79 tokens

volcengine-rds-postgresql

A tool for operating PostgreSQL databases hosted by Volcano Engine's managed database service. PostgreSQL is a relational database used to store structured application data.

bytedance/agentkit-samples · 63 tokens