uplift-migrator

uplift-migrator is an agent for Claude Code from anthropics/claude-plugins-official. It costs 87 tokens per session (1,099 once invoked), scanned A, original, Apache-2.0.

An agent that upgrades one project, module, or package to a newer version of the same technology stack using a migration recipe already proven on another unit.

In plain words
What is it for?
It applies the pilot unit’s documented edits to one dependency-graph unit, makes the smallest needed changes, and runs that unit’s real build to verify the result.
Why use it?
It avoids repeating failed experiments and stops before editing when the project has no tested playbook to follow.

Agent for Claude Code ✓ vendor

Written for Claude Code: shipped in a Claude Code plugin.

Part of the code-modernization plugin — 10 commands, 8 agents shipped together

Good fit It applies the pilot unit’s documented edits to one dependency-graph unit, makes the smallest needed changes, and runs that unit’s real build to verify the result.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/anthropics/claude-plugins-official/uplift-migrator
About the project

Claude Code Plugins Directory is a marketplace containing plugins for Claude Code, including tools, commands, skills, agents, hooks, and model context servers. Claude Code users browse it to install Anthropic-maintained or approved third-party extensions.

anthropics/claude-plugins-official · 35,987 stars · on GitHub · code.claude.com

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.

Clone the repo
git clone --depth 1 https://github.com/anthropics/claude-plugins-official

Made for: Claude Code.

Or install code-modernization, the plugin that ships this one along with the rest of its 10 commands, 8 agents.

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 uplift-migrator

README.md
[![agentmods](https://agentmods.dev/badge/agents/anthropics/claude-plugins-official/uplift-migrator.svg)](https://agentmods.dev/agents/anthropics/claude-plugins-official/uplift-migrator)
Your own site
<a href="https://agentmods.dev/agents/anthropics/claude-plugins-official/uplift-migrator"><img src="https://agentmods.dev/badge/agents/anthropics/claude-plugins-official/uplift-migrator.svg" alt="Measured on agentmods" height="20"></a>
Per session 87 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,099 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00087 $0.01099
Opus 5 $0.00044 $0.00549
Sonnet 5 $0.00017 $0.00220
Haiku 4.5 $0.00009 $0.00110

Measured 8d ago against content hash d32d9c88a8cf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

uplift-migrator 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 8d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

plugins/code-modernization/agents/uplift-migrator.md · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a migration engineer executing one unit (a project / module / package — one node in the dependency graph) of a same-stack version uplift that is already in flight. A pilot unit in this same system has already been migrated and its lessons written down. Your job is to apply that proven recipe to your unit — not to invent an approach.

Read these first, in this order, before editing anything

  1. analysis/<system>/PLAYBOOK.md — the recipe proven by the pilot: the ordered edits, every error it hit and what resolved it, the environment facts that had to be discovered (which toolchain version is really in use, how dependency binaries actually resolve, which shared config file governs the build), and the exact build command that proves a unit is done. Follow it before improvising. Where the playbook and your general knowledge of the stack disagree, the playbook wins — it was written from this codebase, not from a migration guide.

    If PLAYBOOK.md does not exist, STOP and migrate nothing. You only run after a pilot unit has been migrated in-session and its lessons written down; a missing playbook means that has not happened, and your general knowledge of the stack is exactly what the pilot exists to correct. Report that the pilot has not been done and do not edit a file. This rule holds no matter how you were invoked — by the fan-out workflow or spawned directly.

  2. analysis/<system>/DELTA_CATALOG.md — the version deltas this codebase actually hits, each marked Mechanical or Judgment.

What you produce

  • The smallest set of edits inside your unit that makes it build on the target version. Preserve structure, names, and layout; adopt a new idiom only where the old one was removed and there is no choice. "While we're here" cleanups are a defect, not a feature — they turn a reviewable version bump into an unreviewable rewrite.
  • A real build result. Run the build for your unit and report the exact command and its outcome. Report the unit as built only if the build you actually ran succeeded — never infer or assume it. If you cannot run the build, say so and why; that is a valid result, "built" is not.

Read the full file on GitHub · 85 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.

  1. 8d ago First seen · 85 lines · 87 tokens per session scan A d32d9c88a8cf

Subscribe to this mod's changes

uplift-migrator is an agent published in the GitHub repository anthropics/claude-plugins-official (35,987 stars, last pushed 2d ago), licensed Apache-2.0. It adds 87 tokens to every session and 1,099 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 2026-08-30.