dependency-upgrade

dependency-upgrade is a skill for Claude Code from rpraharaj/forward-deployed-engineer. It costs 105 tokens per session (2,182 once invoked), scanned A, original, MIT.

A guided process for upgrading a runtime, framework, database, operating system, or vendor product when its version or support deadline is fixed. It maps related dependencies and manages the change in stages.

In plain words
What is it for?
Use it for end-of-life upgrades, major-version changes, security updates with cascading effects, and library upgrades that affect transitive dependencies.
Why use it?
It prevents the direct upgrade from hiding compatibility problems in other libraries and systems. It helps distinguish real failures from warnings before the deadline.

Skill for Claude Code

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

Part of the fde-migration plugin — 4 skills shipped together

Good fit Use it for end-of-life upgrades, major-version changes, security updates with cascading effects, and library upgrades that affect transitive dependencies.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rpraharaj/forward-deployed-engineer/dependency-upgrade
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 rpraharaj/forward-deployed-engineer --skill dependency-upgrade
Clone the repo
git clone --depth 1 https://github.com/rpraharaj/forward-deployed-engineer

Made for: Claude Code.

Or install fde-migration, the plugin that ships this one along with the rest of its 4 skills.

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 dependency-upgrade

README.md
[![agentmods](https://agentmods.dev/badge/skills/rpraharaj/forward-deployed-engineer/dependency-upgrade.svg)](https://agentmods.dev/skills/rpraharaj/forward-deployed-engineer/dependency-upgrade)
Your own site
<a href="https://agentmods.dev/skills/rpraharaj/forward-deployed-engineer/dependency-upgrade"><img src="https://agentmods.dev/badge/skills/rpraharaj/forward-deployed-engineer/dependency-upgrade.svg" alt="Measured on agentmods" height="20"></a>
Per session 105 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,182 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 $0.00105 $0.02182
Opus 5 $0.00053 $0.01091
Sonnet 5 $0.00021 $0.00436
Haiku 4.5 $0.00011 $0.00218

Measured 7d ago against content hash 2e8620ea2f53, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

dependency-upgrade 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 7d 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.

fde-migration/skills/dependency-upgrade/SKILL.md · 182 lines

How it starts

The opening of the file, as written. The whole thing — 182 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Dependency upgrade

Work where you don't get to choose the scope or the date.

Why this exists

EOL-driven work — a runtime going out of support, a framework major version, a database version, an expiring vendor contract — is an enormous share of enterprise IT and it behaves unlike feature work in three ways:

  • Scope is fixed. You can't descope your way out of Java 8 losing support.
  • The deadline is external. Nobody in the organization can move it.
  • The risk is transitive. The library you're upgrading is fine; the four things depending on it are the problem, and they surface one at a time.

Planned like a feature, it goes wrong predictably: an estimate based on the direct change, then weeks of cascading incompatibilities nobody sized. The work isn't the upgrade. It's the fallout.

The compensating advantage: it's unusually amenable to systematic treatment. The compatibility matrix is knowable up front, and most of the pain comes from not building one.

When this applies

  • End-of-life: runtime, framework, database, OS, vendor product
  • Major version jumps
  • Security-driven bumps that cascade
  • A library upgrade pulling in more than expected

When it doesn't

  • Routine patch bumps handled by automation
  • The upgrade is genuinely one line and the tests pass — just do it
  • Replacing rather than upgrading — that's refactor-seams or a migration

Prerequisites

  • Locate the workspace: FDE_WORKSPACE, else the charter Location, else .fde/, else ../<repo>-fde/
  • .fde/02-system-map.md
  • .fde/01-environment.md — you need a working build before changing what it builds with
  • characterization-tests where coverage is thin. An upgrade with no tests is a rewrite you can't verify.

Procedure

1. Establish the real deadline and what happens after it

"End of life" means different things and the difference matters enormously to how much leverage you have:

  • No more feature releases — soft
  • No more security patches — hard for most compliance regimes
  • Vendor refuses support tickets — hard operationally
  • Service actively stops working — hard, absolute

Read the full file on GitHub · 182 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. 7d ago First seen · 182 lines · 105 tokens per session scan A 2e8620ea2f53

Subscribe to this mod's changes

dependency-upgrade is a skill published in the GitHub repository rpraharaj/forward-deployed-engineer (6 stars, last pushed 20d ago), licensed MIT. It adds 105 tokens to every session and 2,182 once invoked, about $0.0005 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 2026-08-31.