vscode-copilot-chat: Skill for Claude Code

.agents/skills/anthropic-sdk-upgrader/SKILL.md

anthropic-sdk-upgrader is a skill for Claude Code, Codex from microsoft/vscode-copilot-chat. It costs 102 tokens per session (2,337 once invoked), scanned C, original, MIT.

A coding skill for updating Anthropic's software-development packages, including the Anthropic SDK and Claude Agent SDK. An SDK is a code library that helps an application use a service.

In plain words
What is it for?
Use it to upgrade these packages, review release notes, summarize changes, handle breaking changes, and resolve dependency or type conflicts.
Why use it?
It reduces the risk of missed release changes, incompatible package versions, broken types, and migration problems during an SDK upgrade.

Skill for Claude CodeCodex ✓ vendor

Written for no agent in particular: nothing here depends on one. Also seen: model in frontmatter; installed under .agents/ (shared by several agents); mentions AGENTS.md.

This is microsoft/vscode-copilot-chat's own configuration. It tells Claude Code and Codex how to work on vscode-copilot-chat itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything vscode-copilot-chat configures →

Reuse

Borrowing it

Nothing to install: this file belongs to microsoft/vscode-copilot-chat. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/microsoft/vscode-copilot-chat/main/.agents/skills/anthropic-sdk-upgrader/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/microsoft/vscode-copilot-chat

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 anthropic-sdk-upgrader

README.md
[![agentmods](https://agentmods.dev/badge/skills/microsoft/vscode-copilot-chat/anthropic-sdk-upgrader.svg)](https://agentmods.dev/skills/microsoft/vscode-copilot-chat/anthropic-sdk-upgrader)
Your own site
<a href="https://agentmods.dev/skills/microsoft/vscode-copilot-chat/anthropic-sdk-upgrader"><img src="https://agentmods.dev/badge/skills/microsoft/vscode-copilot-chat/anthropic-sdk-upgrader.svg" alt="Measured on agentmods" height="20"></a>
Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,337 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00102 $0.02337
Opus 5 $0.00051 $0.01169
Sonnet 5 $0.00020 $0.00467
Haiku 4.5 $0.00010 $0.00234

Measured 7d ago against content hash daf2ca06622e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade C, and why

anthropic-sdk-upgrader scanned grade C 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 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf /tmp/anthropic-sdk-old
.agents/skills/anthropic-sdk-upgrader/SKILL.md · 256 lines

How it starts

The opening of the file, as written. The whole thing — 256 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an expert at upgrading Anthropic SDK packages in the vscode-copilot-chat project.

Packages

Package Description
@anthropic-ai/claude-agent-sdk Official Claude Agent SDK - provides the core agent runtime, tools, hooks, sessions, and message streaming
@anthropic-ai/sdk Anthropic API SDK - provides base types, API client, and message structures used by the agent SDK

Upgrade Process

Follow these steps exactly:

1. Check Current Versions and Changelog

Before upgrading, review the current versions in package.json and check the release notes:

2. Summarize All Changes

Create a consolidated summary of changes between the current version and the target version. Group changes by category, not by individual version:

Summary Format:

### `@anthropic-ai/package-name` (oldVersion → newVersion)

#### Features
- **Category:** Description of new feature or capability

#### Bug Fixes
- Description of what was fixed

#### Breaking Changes
- **Old API → New API**: Description of what changed and how to migrate

How to Create the Summary:

  1. Read the GitHub Release Notes: Go through each release between your versions
  2. Consolidate by Category: Group all features together, all bug fixes together, etc.
  3. Identify Breaking Changes: Look for:
    • Removed or renamed exports
    • Changed function signatures
    • Modified type definitions
    • Deprecated APIs that have been removed
  4. Document Migration Steps: For breaking changes, include the old and new patterns
  5. Check Peer Dependencies: Note if the new version requires different peer dependencies

3. List Important Changes

Categorize changes by impact level:

Critical (Must Address Before Merge):

  • Breaking API changes that will cause compilation errors
  • Removed types or functions currently in use
  • Changed behavior of core functionality (sessions, streaming, tools)

Read the full file on GitHub · 256 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 · 256 lines · 102 tokens per session scan C daf2ca06622e

Subscribe to this mod's changes

anthropic-sdk-upgrader is a skill published in the GitHub repository microsoft/vscode-copilot-chat (9,970 stars, last pushed 3mo ago), licensed MIT. It adds 102 tokens to every session and 2,337 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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