Agent skill

Gradle Build Performance

by rcosteira79 in rcosteira79/android-skills

Install Gradle Build Performance

skills CLI

$ npx skills add rcosteira79/android-skills --skill gradle-build-performance -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install rcosteira79/android-skills gradle-build-performance --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/rcosteira79/android-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/android-skills/skills/gradle-build-performance .claude/skills/gradle-build-performance && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "gradle-build-performance" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/gradle-build-performance into .claude/skills/gradle-build-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gradle-build-performance", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/gradle-build-performance

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add rcosteira79/android-skills --skill gradle-build-performance -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install rcosteira79/android-skills gradle-build-performance --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/rcosteira79/android-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/android-skills/skills/gradle-build-performance .agents/skills/gradle-build-performance && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "gradle-build-performance" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/gradle-build-performance into .agents/skills/gradle-build-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gradle-build-performance", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add rcosteira79/android-skills --skill gradle-build-performance -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install rcosteira79/android-skills gradle-build-performance --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/rcosteira79/android-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/android-skills/skills/gradle-build-performance .cursor/skills/gradle-build-performance && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "gradle-build-performance" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/gradle-build-performance into .cursor/skills/gradle-build-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gradle-build-performance", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/rcosteira79/android-skills.git --path plugins/android-skills/skills/gradle-build-performance

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add rcosteira79/android-skills --skill gradle-build-performance -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install rcosteira79/android-skills gradle-build-performance --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/rcosteira79/android-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/android-skills/skills/gradle-build-performance .gemini/skills/gradle-build-performance && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "gradle-build-performance" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/gradle-build-performance into .gemini/skills/gradle-build-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gradle-build-performance", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install rcosteira79/android-skills gradle-build-performance

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add rcosteira79/android-skills --skill gradle-build-performance -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/rcosteira79/android-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/android-skills/skills/gradle-build-performance .github/skills/gradle-build-performance && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "gradle-build-performance" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/gradle-build-performance into .github/skills/gradle-build-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gradle-build-performance", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add rcosteira79/android-skills --skill gradle-build-performance -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install rcosteira79/android-skills gradle-build-performance --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/rcosteira79/android-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/android-skills/skills/gradle-build-performance .opencode/skills/gradle-build-performance && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "gradle-build-performance" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/gradle-build-performance into .opencode/skills/gradle-build-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gradle-build-performance", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: gradle-build-performance
GitHub stars: 153
Token cost: ~720 tokens
SKILL.md length: 276 words
Files: 1
Skills in repo: 21
Repo updated: Sep 19, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Android/Gradle builds are slow — diagnosing bottlenecks with build scans
SKILL.md covers Configuration phase — the…, kapt → KSP (mandatory on AGP 9), Dependency resolution and A reasonable gradle.properties…
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
Enabling configuration cache

What it does

Gradle Build Performance is an agent skill from rcosteira79/android-skills. Use when Android/Gradle builds are slow — diagnosing bottlenecks with build scans, enabling configuration cache, migrating kapt to KSP, fixing cache misses, and optimizing CI/CD build times.

Its SKILL.md is about 720 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in DevOps & Cloud, covering CI/CD. It works with Gradle, Android and Kotlin. The repository describes itself as: Claude Code skills for Android & KMP development. The licence is MIT.

When your agent uses it

Android/Gradle builds are slow — diagnosing bottlenecks with build scans
Enabling configuration cache
Migrating kapt to KSP
Fixing cache misses

Example prompts

“/gradle-build-performance”

What it can do on your machine

Read from SKILL.md and the folder at commit 0f9af5a. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are properties).
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
- github.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Gradle Build Performance loads about 720 tokens when it runs. Until then it costs about 54 tokens; SKILL.md has 276 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~54
When it runs · the whole SKILL.md, loaded when a task matches: ~720

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from rcosteira79/android-skills at commit 0f9af5a, republished under its MIT licence (© rcosteira79). 276 words, ~720 tokens.

Download SKILL.mdSave it as .claude/skills/gradle-build-performance/SKILL.md (or your agent's skills folder).

name: gradle-build-performance
description: Use when Android/Gradle builds are slow — diagnosing bottlenecks with build scans, enabling configuration cache, migrating kapt to KSP, fixing cache misses, and optimizing CI/CD build times.

Gradle Build Performance

This reference covers the workflow discipline plus the patterns that move the needle and are easy to get wrong, not the standard knobs (org.gradle.caching, org.gradle.parallel, org.gradle.jvmargs, android.nonTransitiveRClass, kapt → ksp).

Workflow: measure a baseline (clean + incremental) → ./gradlew assembleDebug --scan (or --profile for a no-upload report) → find the slow phase (configuration / execution / dependency resolution) in the Build Scan timeline → apply one optimization at a time → measure again. Batching changes means you never learn what helped.

Configuration phase — the cheapest wins

Configuration cache (org.gradle.configuration-cache=true, AGP 8+) skips the entire configuration phase when inputs are unchanged. Start with org.gradle.configuration-cache.problems=warn, move to fail once clean.
No I/O during configuration. A file("version.txt").readText(), a network call, or exec {} at configuration time breaks the configuration cache and slows every build — defer it to execution: providers.fileContents(layout.projectDirectory.file("version.txt")).asText.
Lazy task registration — tasks.register("x") { … } (configured only if it's in the execution graph), never tasks.create("x") { … } (eager).
Convention plugins, not subprojects {} / allprojects {} — those root-build blocks eagerly evaluate every subproject. Move shared config into convention plugins (see android-skills:android-gradle-logic).

kapt → KSP (mandatory on AGP 9)

KSP is ~2× faster than kapt, and AGP 9 makes the migration mandatory — it has built-in Kotlin support and org.jetbrains.kotlin.kapt is incompatible with it. Migrate to KSP (requires KSP 2.3.1+ on AGP 9; Hilt / Room / Moshi all support it), or fall back to com.android.legacy-kapt (same version as AGP) for annotation processors with no KSP equivalent. See JetBrains' kotlin-tooling-agp9-migration skill for the broader AGP 9 mechanics.

Dependency resolution

Pin versions — a dynamic 1.0.+ or -SNAPSHOT forces a network resolution check on every build. Pin 1.2.3.
Repository order — Gradle checks repositories in declaration order; put the most-used first (google() then mavenCentral(), third-party last).

A reasonable `gradle.properties` baseline

properties

org.gradle.configuration-cache=true
org.gradle.caching=true
org.gradle.parallel=true
org.gradle.jvmargs=-Xmx4g -XX:+UseParallelGC
android.nonTransitiveRClass=true

Files

Just SKILL.md in plugins/android-skills/skills/gradle-build-performance of rcosteira79/android-skills.

Open the folder on GitHubat commit 0f9af5a

Compare with similar skills

Gradle Build Performance next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Gradle Build Performance compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Gradle Build Performance this skillrcosteira79/android-skills	153	—	~720	Automated safety check: Pass	MIT	21 days ago
Gradle Build PerformanceMoustachauve/WLED-Android	169	3 repos	~2k	Automated safety check: Pass	Apache-2.0	yesterday
Enforcing Stability In CIrosuH/EasyWatermark	1.9k	1 repos	~4k	Automated safety check: Pass	Apache-2.0	yesterday
Gplay Gradle Buildhanamizuki/solopreneur	152	—	~1.2k	Automated safety check: Pass	MIT	14 days ago
Upgrade Notesgetknit/knit	133	—	~1.2k	Automated safety check: Pass	GPL-3.0	yesterday
Levyra CI WorkflowsLUC4N3X/Levyra-deepsound	591	—	~2k	Automated safety check: Pass	GPL-3.0	today

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Works with

Questions about Gradle Build Performance

What does Gradle Build Performance do?

A skill your agent uses when Android/Gradle builds are slow — diagnosing bottlenecks with build scans, enabling configuration cache, migrating kapt to KSP, fixing cache misses, and optimizing CI/CD…. Gradle Build Performance is an agent skill from rcosteira79/android-skills. Use when Android/Gradle builds are slow — diagnosing bottlenecks with build scans, enabling configuration cache, migrating kapt to KSP, fixing cache misses, and optimizing CI/CD build times.

When should I use Gradle Build Performance?

Gradle Build Performance fits situations like: android/Gradle builds are slow — diagnosing bottlenecks with build scans; enabling configuration cache; migrating kapt to KSP; fixing cache misses.

How do I install Gradle Build Performance in Claude Code?

Run `npx skills add rcosteira79/android-skills --skill gradle-build-performance -a claude-code`. Or copy the skill folder (plugins/android-skills/skills/gradle-build-performance in rcosteira79/android-skills) into .claude/skills/gradle-build-performance in your project. Claude Code loads it when a task matches its description.

How do I install Gradle Build Performance in Codex?

Run `npx skills add rcosteira79/android-skills --skill gradle-build-performance -a codex`. Or copy the skill folder (plugins/android-skills/skills/gradle-build-performance in rcosteira79/android-skills) into .agents/skills/gradle-build-performance in your project. Codex loads it when a task matches its description.

Can I use Gradle Build Performance in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add rcosteira79/android-skills --skill gradle-build-performance -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/gradle-build-performance, .gemini/skills/gradle-build-performance, .github/skills/gradle-build-performance and .opencode/skills/gradle-build-performance in your project.

What does Gradle Build Performance need to run?

SKILL.md names no scripts, command-line tools or credentials: Gradle Build Performance is instructions for the agent only.

Does Gradle Build Performance access the network?

SKILL.md names 1 domain. As links in the text: github.com. This is read from the text; nothing was executed.

Is Gradle Build Performance safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Gradle Build Performance use?

Gradle Build Performance is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Gradle Build Performance use?

About 720 tokens (SKILL.md is roughly 2.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Gradle Build Performance?

Skills that share tags, products or a category with Gradle Build Performance: Gradle Build Performance (Moustachauve/WLED-Android, 169 stars), Enforcing Stability In CI (rosuH/EasyWatermark, 1.9k stars), Gplay Gradle Build (hanamizuki/solopreneur, 152 stars) and Upgrade Notes (getknit/knit, 133 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Gradle Build Performance?

rcosteira79 (a GitHub user) maintains it in rcosteira79/android-skills, which has 153 GitHub stars. The repository holds 21 skills in this directory. The repository was last updated on September 19, 2026.

Source: rcosteira79/android-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Gradle Build Performance

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Gradle Build Performance

Configuration phase — the cheapest wins

kapt → KSP (mandatory on AGP 9)

Dependency resolution

A reasonable gradle.properties baseline

Files

Compare with similar skills

Similar skills

More from rcosteira79/android-skills

Related

Questions about Gradle Build Performance

A reasonable `gradle.properties` baseline