frogo-sdk: Skill for Claude Code

.agents/skills/agp-9-upgrade/SKILL.md

agp-9-upgrade is a skill for Claude Code, Codex from frogobox/frogo-sdk. It costs 30 tokens per session (726 once invoked), scanned A, a copy of agp-9-upgrade, Apache-2.0.

A migration guide for moving an Android project to Android Gradle Plugin 9, the build tool version used to package Android applications. It also covers related changes to Kotlin, Gradle, KSP, and the Android build configuration.

In plain words
What is it for?
Use it to check the current AGP version and, when the project is already on version 9 or newer, migrate Kotlin setup, the Gradle configuration, annotation processing, and BuildConfig usage.
Why use it?
It helps identify the required version checks and migration steps for changes that may break an older Android project.

Skill for Claude CodeCodex

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

This is frogobox/frogo-sdk's own configuration. It tells Claude Code and Codex how to work on frogo-sdk 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 frogo-sdk configures →

Reuse

Borrowing it

Nothing to install: this file belongs to frogobox/frogo-sdk. 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/frogobox/frogo-sdk/master/.agents/skills/agp-9-upgrade/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/frogobox/frogo-sdk

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 agp-9-upgrade

README.md
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Your own site
<a href="https://agentmods.dev/skills/frogobox/frogo-sdk/agp-9-upgrade"><img src="https://agentmods.dev/badge/skills/frogobox/frogo-sdk/agp-9-upgrade/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for agp-9-upgrade

Your own site · 80×15
<a href="https://agentmods.dev/skills/frogobox/frogo-sdk/agp-9-upgrade"><img src="https://agentmods.dev/badge/skills/frogobox/frogo-sdk/agp-9-upgrade.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 726 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 86% copy Near-identical to another mod 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 $0.00030 $0.00726
Opus 5 $0.00015 $0.00363
Sonnet 5 $0.00006 $0.00145
Haiku 4.5 $0.00003 $0.00073

Measured 10d ago against content hash 657a5ff92d29, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

agp-9-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 10d 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

This is a copy

86% identical to agp-9-upgrade — 37 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/agp-9-upgrade/SKILL.md · 89 lines

How it starts

The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Migration guide

See the AGP 9 migration guide for the major changes, many breaking, in AGP 9 compared to AGP 8.

Requirements

If the user requests to update or migrate to AGP 9, first check the AGP version used in the project. If it is lower than 9, stop and ask the user to run the AGP Upgrade Assistant in Android Studio, and confirm when done.

Each version of AGP has its own set of compatibilities with other tools, such as Gradle, JDK, and Kotlin. The release notes for each of these versions will include a Compatibility table indicating the minimum versions for these tools.

Steps

If AGP is already at 9 or higher, then do the following:

Step 1: Migrate to built-in Kotlin.

See the guide for detailed information.

Step 2. Migrate to the new AGP DSL.

See the guide for detailed information.

See also gradle-recipes for examples on how to migrate old code to code that is compatible with AGP 9 and the new DSL.

Step 3. Migrate kapt to KSP or legacy-kapt

If KSP (com.google.devtools.ksp) is used in the project, ensure it is on version 2.3.6 or higher.

See KSP, kapt, and legacy-kapt for detailed information.

Step 4. BuildConfig

If any Android module contains custom BuildConfig fields, see BuildConfig for detailed information.

Step 5. Update gradle.properties

After the migration, check gradle.properties. Remove the following flags:

  1. android.builtInKotlin
  2. android.newDsl
  3. android.uniquePackageNames
  4. android.enableAppCompileTimeRClass

Additionally, delete all temporary files you've created.

Guidelines

  • Never write or run python scripts.
  • Only search the Gradle dependency cache when inspecting external dependencies, and only as a last resort.
  • Never add android.disallowKotlinSourceSets=false to gradle.properties.
  • When verifying changes, don't run the clean task. This is a waste of time.

Read the full file on GitHub · 89 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 10d ago First seen · 89 lines · 30 tokens per session scan A 657a5ff92d29

Subscribe to this mod's changes

agp-9-upgrade is a skill published in the GitHub repository frogobox/frogo-sdk (21 stars, last pushed 7d ago), licensed Apache-2.0. It adds 30 tokens to every session and 726 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to agp-9-upgrade, differing in 37 lines, and is treated as a copy.

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