codebase-migration

codebase-migration is a skill for Claude Code, Codex from tinh2/skills-hub-registry. It costs 60 tokens per session (1,752 once invoked), scanned A, original, no licence file.

A four-phase method for planning and carrying out large changes across a codebase, meaning a project's complete collection of source files.

In plain words
What is it for?
Use it to create an impact map, plan migration batches, coordinate coding agents, and validate a large codebase migration.
Why use it?
Large migrations can affect many connected parts, so the method maps those effects and checks the result across the project.

Skill for Claude CodeCodex

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 skills/tinh2/skills-hub-registry/codebase-migration
Any agent
npx skills add tinh2/skills-hub-registry --skill codebase-migration
Clone the repo
git clone --depth 1 https://github.com/tinh2/skills-hub-registry

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 codebase-migration

README.md
[![agentmods](https://agentmods.dev/badge/skills/tinh2/skills-hub-registry/codebase-migration.svg)](https://agentmods.dev/skills/tinh2/skills-hub-registry/codebase-migration)
Your own site
<a href="https://agentmods.dev/skills/tinh2/skills-hub-registry/codebase-migration"><img src="https://agentmods.dev/badge/skills/tinh2/skills-hub-registry/codebase-migration.svg" alt="Measured on agentmods" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,752 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00060 $0.01752
Opus 5 $0.00030 $0.00876
Sonnet 5 $0.00012 $0.00350
Haiku 4.5 $0.00006 $0.00175

Measured 5d ago against content hash 3895f0ba5e31, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

codebase-migration 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 5d 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.

analysis/codebase-migration/SKILL.md · 213 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. 5d ago First seen · 213 lines · 60 tokens per session scan A 3895f0ba5e31

Subscribe to this mod's changes

codebase-migration is a skill published in the GitHub repository tinh2/skills-hub-registry (15 stars, last pushed yesterday), with no licence file. It adds 60 tokens to every session and 1,752 once invoked, about $0.0003 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 2026-08-30.

Related

Other skills, from other repositories

Malware Analysis & Sandboxing

Static and dynamic malware analysis, YARA rule generation, sandbox configuration, behavioral profiling, and malware family classification.

Masriyan/Claude-Code-CyberSecurity-Skill · 28 tokens

audience-feedback-summarizer

Takes a batch of reader comments, survey responses, or audience messages and returns a structured summary organized by theme, sentiment, and actionable takeaways — turning scattered feedback into a clear editorial brief.

ur-grue/autopunk-media-skills · 46 tokens

basic-statistics-calculator

Performs and explains basic statistical calculations — percentages, percentage changes, per-capita rates, averages, medians, and ratios — from data you provide, showing the working so you can verify it and use the figures confidently in a story.

ur-grue/autopunk-media-skills · 54 tokens

weekly-performance-advisor

Generate your Weekly Performance Advisor dashboard from your La Growth Machine data: a two-tab cockpit (To do + Weekly performance) that flags campaigns to fix, sorts replies by urgency, and tracks reply volume week over week. It pulls only YOUR live LGM data, scores each running campaign against baked 3-zone…

LaGrowthMachine/gtm-system · 215 tokens

objection-analyzer

Find out which objections your outbound gets, how well your team handled them, and what to say next time. Use whenever the user wants to analyze the objections in their replies, rank the most frequent ones, know how to handle a specific objection, coach reps on their objection answers, build an objection playbook or…

LaGrowthMachine/gtm-system · 215 tokens

audience-icp-filter

Filter an existing audience or lead list against your ICP and split it into ready-to-sequence segments. Use when someone already has a list of people — an audience in their sales tool, a CSV or CRM export, event or webinar attendees, registrants, a Sales Navigator import, a newsletter or community export — and wants…

LaGrowthMachine/gtm-system · 228 tokens