Agent skill

Migrate

by codewithmukesh in codewithmukesh/dotnet-claude-kit

Guided, safe migration workflow covering EF Core schema migrations, .NET version upgrades, and NuGet dependency updates — each with rollback strategies and verification steps.

MITAuto-check passedDevelopment

Install Migrate

skills CLI

$ npx skills add codewithmukesh/dotnet-claude-kit --skill migrate -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install codewithmukesh/dotnet-claude-kit migrate --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/codewithmukesh/dotnet-claude-kit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/migrate .claude/skills/migrate && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "migrate" agent skill from https://github.com/codewithmukesh/dotnet-claude-kit/tree/main/skills/migrate into .claude/skills/migrate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "migrate", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/codewithmukesh/dotnet-claude-kit/tree/main/skills/migrate

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add codewithmukesh/dotnet-claude-kit --skill migrate -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install codewithmukesh/dotnet-claude-kit migrate --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/codewithmukesh/dotnet-claude-kit.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/migrate .agents/skills/migrate && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "migrate" agent skill from https://github.com/codewithmukesh/dotnet-claude-kit/tree/main/skills/migrate into .agents/skills/migrate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "migrate", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add codewithmukesh/dotnet-claude-kit --skill migrate -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install codewithmukesh/dotnet-claude-kit migrate --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/codewithmukesh/dotnet-claude-kit.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/migrate .cursor/skills/migrate && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "migrate" agent skill from https://github.com/codewithmukesh/dotnet-claude-kit/tree/main/skills/migrate into .cursor/skills/migrate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "migrate", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/codewithmukesh/dotnet-claude-kit.git --path skills/migrate

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add codewithmukesh/dotnet-claude-kit --skill migrate -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install codewithmukesh/dotnet-claude-kit migrate --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/codewithmukesh/dotnet-claude-kit.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/migrate .gemini/skills/migrate && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "migrate" agent skill from https://github.com/codewithmukesh/dotnet-claude-kit/tree/main/skills/migrate into .gemini/skills/migrate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "migrate", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install codewithmukesh/dotnet-claude-kit migrate

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add codewithmukesh/dotnet-claude-kit --skill migrate -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/codewithmukesh/dotnet-claude-kit.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/migrate .github/skills/migrate && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "migrate" agent skill from https://github.com/codewithmukesh/dotnet-claude-kit/tree/main/skills/migrate into .github/skills/migrate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "migrate", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add codewithmukesh/dotnet-claude-kit --skill migrate -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install codewithmukesh/dotnet-claude-kit migrate --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/codewithmukesh/dotnet-claude-kit.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/migrate .opencode/skills/migrate && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "migrate" agent skill from https://github.com/codewithmukesh/dotnet-claude-kit/tree/main/skills/migrate into .opencode/skills/migrate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "migrate", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: migrate
GitHub stars: 751
Token cost: ~1.7k tokens
SKILL.md length: 549 words
Files: 1
Skills in repo: 47
Repo updated: Aug 7, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Guided, safe migration workflow covering EF Core schema migrations, .NET version upgrades, and NuGet dependency updates — each with rollback strategies and verification steps.

Works in 3 steps: EF Core schema — review pending model… → .NET version upgrade — phased… → NuGet updates — incremental,…
Tasks that involve Code migrations
SKILL.md covers What, When, How and Example, plus 1 more section
Calls dotnet

What it does

Migrate is an agent skill from codewithmukesh/dotnet-claude-kit. Guided, safe migration workflow covering EF Core schema migrations, .NET version upgrades, and NuGet dependency updates — each with rollback strategies and verification steps. Invoke when: "add migration", "update database", "create migration", "schema change", "new table", "rename column", "upgrade nuget", "update packages", "dependency update", "version upgrade", ".NET upgrade".

Its SKILL.md is about 1.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Code migrations, Dependency management and Database migrations. It works with .NET and SQL. The repository describes itself as: Make Claude Code a .NET 10 Expert. The licence is MIT.

When your agent uses it

Tasks that involve Code migrations
Tasks that involve Dependency management
Tasks that involve Database migrations

Example prompts

“add migration”
“update database”
“create migration”
“/migrate”

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

EF Core schema — review pending model changes, generate a descriptively
.NET version upgrade — phased TFM/SDK/package upgrade with verification
NuGet updates — incremental, one-package-at-a-time updates so breakage

What it can do on your machine

Read from SKILL.md and the folder at commit 2330089. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- dotnet
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Migrate loads about 1.7k tokens when it runs. Until then it costs about 98 tokens; SKILL.md has 549 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~98
When it runs · the whole SKILL.md, loaded when a task matches: ~1.7k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from codewithmukesh/dotnet-claude-kit at commit 2330089, republished under its MIT licence (© codewithmukesh). 549 words, ~1,710 tokens.

Download SKILL.mdSave it as .claude/skills/migrate/SKILL.md (or your agent's skills folder).

name: migrate
description: Guided, safe migration workflow covering EF Core schema migrations, .NET version upgrades, and NuGet dependency updates — each with rollback strategies and verification steps. Invoke when: "add migration", "update database", "create migration", "schema change", "new table", "rename column", "upgrade nuget", "update packages", "dependency update", "version upgrade", ".NET upgrade".

/migrate

What

The single migration workflow for three change types, with EF Core schema migrations as the primary flow:

EF Core schema — review pending model changes, generate a descriptively named migration, review the SQL for data loss and locking risks, apply with a documented rollback path.
.NET version upgrade — phased TFM/SDK/package upgrade with verification at each phase.
NuGet updates — incremental, one-package-at-a-time updates so breakage is always attributable.

Shared principles: verify before applying, rollback plan always, test after every step, one logical change per migration.

When

After modifying entity classes, DbContext configuration, or relationships
"add migration", "update database", "create migration", "new table", "rename column"
When generating SQL scripts for DBA review
"upgrade to .NET 10", "version upgrade", ".NET upgrade"
"upgrade nuget", "update packages", "dependency update", vulnerable package alerts

How

First, classify the request: schema change → Flow A; framework upgrade → Flow B; package update → Flow C. Then follow that flow end to end.

Flow A: EF Core Schema Migration (primary)

Step 1: Assess current state

bash

dotnet ef migrations list --project <InfraProject> --startup-project <ApiProject>

Check for pending migrations and uncaptured model changes.

Step 2: Review model changes

Use MCP tools instead of reading whole files:

find_symbol(name: entity or DbSet)        -- locate the changed entity
get_type_hierarchy(typeName: entity)      -- check TPH/TPT/TPC inheritance changes
find_references(symbolName: property)     -- assess downstream query impact

Confirm the change is one logical unit. If not, split into multiple migrations — mixed migrations make rollback all-or-nothing.

Step 3: Generate migration

Name describes the change, not the entity: Add|Remove|Rename|Modify + WhatChanged.

bash

# GOOD
dotnet ef migrations add AddOrderShippingAddress --project <Infra> --startup-project <Api>
# BAD — names the entity, not the change
dotnet ef migrations add Order

Step 4: Review generated SQL

database update has no dry-run flag — preview by generating an idempotent script and reading it:

bash

dotnet ef migrations script --idempotent --project <Infra> --startup-project <Api>

Flag and report:

DROP COLUMN / DROP TABLE — confirm data loss is intentional
ALTER COLUMN type changes — check precision loss or truncation
ALTER on large tables — warn about lock duration
New non-nullable columns — need defaults for existing rows

If data must survive a rename/retype, use a multi-step migration with raw SQL:

csharp

protected override void Up(MigrationBuilder migrationBuilder)
{
    migrationBuilder.AddColumn<string>("ContactEmail", "Customers", nullable: true);
    migrationBuilder.Sql("UPDATE \"Customers\" SET \"ContactEmail\" = \"Email\"");
    migrationBuilder.AlterColumn<string>("ContactEmail", "Customers", nullable: false);
    migrationBuilder.DropColumn("Email", "Customers");
}

Step 5: Apply and verify

bash

dotnet ef database update --project <Infra> --startup-project <Api>
dotnet build && dotnet test   # integration tests catch schema mismatches

Step 6: Document rollback

bash

dotnet ef database update <PreviousMigrationName> --project <Infra> --startup-project <Api>
dotnet ef migrations remove --project <Infra> --startup-project <Api>   # if unapplying from code

Never modify a migration that is already applied — create a new one.

Show full SKILL.md (240 more words)Show less

Flow B: .NET Version Upgrade

Assess — get_project_graph to list all TFMs; flag mixed versions.
Pre-flight — all tests green, no pending EF migrations, dependencies checked for target-version compatibility, dedicated branch created (branch IS the rollback plan).
Update global.json — SDK version with "rollForward": "latestMinor".
Update TFMs — <TargetFramework>net10.0</TargetFramework> and <LangVersion>14</LangVersion> in .csproj or Directory.Build.props.
Update packages — dotnet outdated --upgrade Major --include Microsoft.*, then build and fix.
Adopt new features — per knowledge/dotnet-whats-new.md: TimeProvider, HybridCache, primary constructors, collection expressions.
Verify — dotnet build, dotnet test, dotnet format --verify-no-changes.

Flow C: NuGet Package Updates

Audit — dotnet list package --outdated and dotnet list package --vulnerable. Vulnerable packages are urgent: update, test, deploy.
Categorize — patch (batch-safe), minor (one at a time), major (one at a time, read release notes first).
Update incrementally — one package, then dotnet build && dotnet test before the next. Batched updates make failures unattributable.
Check fit — consult knowledge/package-recommendations.md before adding new packages; prefer built-in .NET alternatives. Moving off MediatR (commercial license from v13)? Follow the step-by-step guide in knowledge/mediatr-to-mediator-migration.md.
Rollback — git revert the package bump; never downgrade other packages to compensate.

MCP Tools Used

find_symbol / find_references — locate entities, assess schema-change impact
get_type_hierarchy — entity inheritance for TPH/TPT/TPC
get_project_graph — TFM audit before version upgrades
get_diagnostics — catch warnings after migration generation or upgrades

Example

User: /migrate

Claude: Checking migration state...
  Last applied: 20250710_AddOrderTable
  Model changes detected: new ShippingAddress property on Order entity.

  Creating migration: AddOrderShippingAddress
  Reviewing SQL (dotnet ef migrations script --idempotent)...
  - ALTER TABLE "Orders" ADD "ShippingStreet" text NULL
  - ALTER TABLE "Orders" ADD "ShippingCity" text NULL
  No data loss. No locking risk. Safe to apply.

  Applying migration... Done. Build: green. Tests: 34/34 passed.

  Rollback (if needed):
  dotnet ef database update AddOrderTable --project src/Infrastructure --startup-project src/Api

ef-core — entity configuration, query patterns, migration internals
/verify — full verification pipeline after migration work
/checkpoint — commit a safe state before risky migrations

Files

Just SKILL.md in skills/migrate of codewithmukesh/dotnet-claude-kit.

Open the folder on GitHubat commit 2330089

Compare with similar skills

Migrate next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Migrate compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Migrate this skillcodewithmukesh/dotnet-claude-kit	751	—	~1.7k	Automated safety check: Pass	MIT	2 mo ago
Migration WorkflowResgrid/Core	229	—	~2.4k	Automated safety check: Pass	Apache-2.0	today
Update .NET OS Packagesdotnet/core	22k	—	~2.3k	Automated safety check: Pass	MIT	yesterday
GitVersion .NET DevelopmentGitTools/GitVersion	3.1k	—	~1.7k	Automated safety check: Pass	MIT	yesterday
OBS Plugin Dependency Upgradesorayuki/obs-multi-rtmp	5.1k	—	~609	Automated safety check: Pass	GPL-2.0	5 days ago
Dependency UpdaterAsvarox/allkaraoke	261	4 repos	~3.5k	Automated safety check: Pass	MIT	today

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Questions about Migrate

What does Migrate do?

Guided, safe migration workflow covering EF Core schema migrations, .NET version upgrades, and NuGet dependency updates — each with rollback strategies and verification steps. Migrate is an agent skill from codewithmukesh/dotnet-claude-kit.NET version upgrades, and NuGet dependency updates — each with rollback strategies and verification steps.

When should I use Migrate?

Migrate fits situations like: tasks that involve Code migrations; tasks that involve Dependency management; tasks that involve Database migrations.

How do I install Migrate in Claude Code?

Run `npx skills add codewithmukesh/dotnet-claude-kit --skill migrate -a claude-code`. Or copy the skill folder (skills/migrate in codewithmukesh/dotnet-claude-kit) into .claude/skills/migrate in your project. Claude Code loads it when a task matches its description.

How do I install Migrate in Codex?

Run `npx skills add codewithmukesh/dotnet-claude-kit --skill migrate -a codex`. Or copy the skill folder (skills/migrate in codewithmukesh/dotnet-claude-kit) into .agents/skills/migrate in your project. Codex loads it when a task matches its description.

Can I use Migrate in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add codewithmukesh/dotnet-claude-kit --skill migrate -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/migrate, .gemini/skills/migrate, .github/skills/migrate and .opencode/skills/migrate in your project.

What does Migrate need to run?

Going by SKILL.md and its folder, Migrate needs the command-line tools its instructions call (dotnet).

Does Migrate access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Migrate safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Migrate use?

Migrate is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Migrate use?

About 1.7k tokens (SKILL.md is roughly 6.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Migrate?

Skills that share tags, products or a category with Migrate: Migration Workflow (Resgrid/Core, 229 stars), Update .NET OS Packages (dotnet/core, 22k stars), GitVersion .NET Development (GitTools/GitVersion, 3.1k stars) and OBS Plugin Dependency Upgrade (sorayuki/obs-multi-rtmp, 5.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Migrate?

codewithmukesh (a GitHub organization) maintains it in codewithmukesh/dotnet-claude-kit, which has 751 GitHub stars. The repository holds 47 skills in this directory. The repository was last updated on August 7, 2026.

Source: codewithmukesh/dotnet-claude-kit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Migrate

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

/migrate

What

When

How

Flow A: EF Core Schema Migration (primary)

Flow B: .NET Version Upgrade

Flow C: NuGet Package Updates

MCP Tools Used

Example

Related

Files

Compare with similar skills

Similar skills

More from codewithmukesh/dotnet-claude-kit

Related

Questions about Migrate