Audits Jetpack Compose screens for performance problems, from recomposition scope and stability to lazy list keys and effects, and proposes minimal fixes with ways to verify them.
$ npx skills add ModinMobileSTS/SlayTheAmethystModded --skill compose-performance-audit -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install ModinMobileSTS/SlayTheAmethystModded compose-performance-audit --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/ModinMobileSTS/SlayTheAmethystModded.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.opencode/skills/compose-performance-audit .claude/skills/compose-performance-audit && rm -rf skills-srcUse ~/.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/
Install the "compose-performance-audit" agent skill from https://github.com/ModinMobileSTS/SlayTheAmethystModded/tree/main/.opencode/skills/compose-performance-audit into .claude/skills/compose-performance-audit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "compose-performance-audit", 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 install https://github.com/ModinMobileSTS/SlayTheAmethystModded/tree/main/.opencode/skills/compose-performance-auditType 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.
$ npx skills add ModinMobileSTS/SlayTheAmethystModded --skill compose-performance-audit -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install ModinMobileSTS/SlayTheAmethystModded compose-performance-audit --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ModinMobileSTS/SlayTheAmethystModded.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.opencode/skills/compose-performance-audit .agents/skills/compose-performance-audit && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "compose-performance-audit" agent skill from https://github.com/ModinMobileSTS/SlayTheAmethystModded/tree/main/.opencode/skills/compose-performance-audit into .agents/skills/compose-performance-audit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "compose-performance-audit", 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.
$ npx skills add ModinMobileSTS/SlayTheAmethystModded --skill compose-performance-audit -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install ModinMobileSTS/SlayTheAmethystModded compose-performance-audit --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ModinMobileSTS/SlayTheAmethystModded.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.opencode/skills/compose-performance-audit .cursor/skills/compose-performance-audit && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "compose-performance-audit" agent skill from https://github.com/ModinMobileSTS/SlayTheAmethystModded/tree/main/.opencode/skills/compose-performance-audit into .cursor/skills/compose-performance-audit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "compose-performance-audit", 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 https://github.com/ModinMobileSTS/SlayTheAmethystModded.git --path .opencode/skills/compose-performance-audit--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add ModinMobileSTS/SlayTheAmethystModded --skill compose-performance-audit -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install ModinMobileSTS/SlayTheAmethystModded compose-performance-audit --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ModinMobileSTS/SlayTheAmethystModded.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.opencode/skills/compose-performance-audit .gemini/skills/compose-performance-audit && rm -rf skills-srcUse ~/.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/
Install the "compose-performance-audit" agent skill from https://github.com/ModinMobileSTS/SlayTheAmethystModded/tree/main/.opencode/skills/compose-performance-audit into .gemini/skills/compose-performance-audit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "compose-performance-audit", 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.
$ gh skill install ModinMobileSTS/SlayTheAmethystModded compose-performance-auditInstalls 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).
$ npx skills add ModinMobileSTS/SlayTheAmethystModded --skill compose-performance-audit -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/ModinMobileSTS/SlayTheAmethystModded.git skills-src && mkdir -p .github/skills && cp -r skills-src/.opencode/skills/compose-performance-audit .github/skills/compose-performance-audit && rm -rf skills-srcUse ~/.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/
Install the "compose-performance-audit" agent skill from https://github.com/ModinMobileSTS/SlayTheAmethystModded/tree/main/.opencode/skills/compose-performance-audit into .github/skills/compose-performance-audit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "compose-performance-audit", 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.
$ npx skills add ModinMobileSTS/SlayTheAmethystModded --skill compose-performance-audit -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install ModinMobileSTS/SlayTheAmethystModded compose-performance-audit --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ModinMobileSTS/SlayTheAmethystModded.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.opencode/skills/compose-performance-audit .opencode/skills/compose-performance-audit && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "compose-performance-audit" agent skill from https://github.com/ModinMobileSTS/SlayTheAmethystModded/tree/main/.opencode/skills/compose-performance-audit into .opencode/skills/compose-performance-audit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "compose-performance-audit", 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.
compose-performance-auditAudits Jetpack Compose screens for performance problems, from recomposition scope and stability to lazy list keys and effects, and proposes minimal fixes with ways to verify them.
The agent starts from the reported symptom, such as slow first render, scrolling jank, excess recomposition, input lag, animation stutter, memory churn or battery and CPU pressure, and inspects the smallest relevant surface first: a screen composable, state holder, list item, animation or custom layout. It keeps measured problems apart from theoretical risks and prefers evidence from traces, compiler reports, the layout inspector, recomposition counts, macrobenchmarks or profiler captures. Fixes should be minimal, keep behavior and fit the project's architecture, and the answer ends with commands or manual checks that prove the improvement.
The workflow locates the hot path, looking for state reads that invalidate wide parts of the tree and expensive work in composition, layout, draw or effects. It then audits recomposition scope, moving volatile reads lower and using `derivedStateOf` only where it really reduces work, and checks stability: mutable collections, unstable data classes, changing lambdas and premature `@Stable` or `@Immutable` annotations that can leave the UI stale. For lazy layouts it looks at stable keys, `contentType` and per-item allocations. The excerpt ends partway through that section.
5 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit a2733f0. It shows what the files ask for, not the result of running them.
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.
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Compose Performance Audit loads about 1.2k tokens when it runs. Until then it costs about 90 tokens; SKILL.md has 612 words of instructions outside code blocks.
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.
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.
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 612 words (~1,239 tokens).
SKILL.md and 1 other file in .opencode/skills/compose-performance-audit of ModinMobileSTS/SlayTheAmethystModded.
Open the folder on GitHubat commit a2733f0
Compose Performance Audit 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Compose Performance Audit this skillModinMobileSTS/SlayTheAmethystModded | 402 | — | ~1.2k | Automated safety check: Pass | Custom licence | |
| Testing Compose In Release ModerosuH/EasyWatermark | 1.9k | 1 repos | ~4.2k | Automated safety check: Pass | Apache-2.0 | |
| Deferring State ReadsrosuH/EasyWatermark | 1.9k | 1 repos | ~3.8k | Automated safety check: Pass | Apache-2.0 | |
| Diagnosing Compose StabilityrosuH/EasyWatermark | 1.9k | 1 repos | ~3.3k | Automated safety check: Pass | Apache-2.0 | |
| Generating Baseline ProfilesrosuH/EasyWatermark | 1.9k | 1 repos | ~5k | Automated safety check: Pass | Apache-2.0 | |
| Compose UIMoustachauve/WLED-Android | 169 | 3 repos | ~676 | Automated safety check: Pass | Apache-2.0 |
rosuH/EasyWatermark
A skill your agent uses to ensure Jetpack Compose performance numbers reflect production reality by measuring against a release variant with R8 enabled, Live Literals disabled, and Compose Compiler…
rosuH/EasyWatermark
A skill your agent uses to push frequently-changing Jetpack Compose state reads (scroll position, animation values, drag offsets) out of the Composition phase and down into Layout or Draw using…
rosuH/EasyWatermark
A skill your agent uses to diagnose Jetpack Compose stability problems by enabling and reading the Compose Compiler Reports (classes.txt, composables.txt, composables.csv, module.json).
rosuH/EasyWatermark
A skill your agent uses to generate and measure Jetpack Compose Baseline Profiles end-to-end with the AGP 8.2+ Baseline Profile Generator module and the Macrobenchmark harness.
Moustachauve/WLED-Android
Best practices for building UI with Jetpack Compose, focusing on state hoisting, detailed performance optimizations, and theming.
nekomangaorg/Neko
Identifies and implements micro-level Kotlin, Jetpack Compose, Coroutine, and Room database performance optimizations.
ModinMobileSTS/SlayTheAmethystModded
Reads Slay the Amethyst diagnostics bundles to decide whether a problem comes from the launcher, a mod or the device, citing exact files and lines.
ModinMobileSTS/SlayTheAmethystModded
Designs and reviews Android screens with attention to touch ergonomics, adaptive layouts, accessibility, state handling and an implementation handoff.
ModinMobileSTS/SlayTheAmethystModded
Applies practical Jetpack Compose patterns to Android UI code: state hoisting, one-way data flow, side effects, modifiers, theming and testable composables.
ModinMobileSTS/SlayTheAmethystModded
Design system imported from the SlayTheAmethyst Android Jetpack Compose launcher: Material 3 surfaces, user-selected seed colors, light and dark themes and typography rules.
Works with
Categories
Audits Jetpack Compose screens for performance problems, from recomposition scope and stability to lazy list keys and effects, and proposes minimal fixes with ways to verify them. The agent starts from the reported symptom, such as slow first render, scrolling jank, excess recomposition, input lag, animation stutter, memory churn or battery and CPU pressure, and inspects the smallest relevant surface first: a screen composable, state holder, list item, animation or custom layout. It keeps measured problems apart from theoretical risks and prefers evidence from traces, compiler reports, the layout inspector, recomposition counts, macrobenchmarks or profiler captures.
Compose Performance Audit fits situations like: diagnosing a slow or janky Compose screen; reviewing Compose code for recomposition and stability problems; checking lazy lists for missing keys or expensive item work; planning verification steps for a Compose performance fix.
Run `npx skills add ModinMobileSTS/SlayTheAmethystModded --skill compose-performance-audit -a claude-code`. Or copy the skill folder (.opencode/skills/compose-performance-audit in ModinMobileSTS/SlayTheAmethystModded) into .claude/skills/compose-performance-audit in your project. Claude Code loads it when a task matches its description.
Run `npx skills add ModinMobileSTS/SlayTheAmethystModded --skill compose-performance-audit -a codex`. Or copy the skill folder (.opencode/skills/compose-performance-audit in ModinMobileSTS/SlayTheAmethystModded) into .agents/skills/compose-performance-audit in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ModinMobileSTS/SlayTheAmethystModded --skill compose-performance-audit -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/compose-performance-audit, .gemini/skills/compose-performance-audit, .github/skills/compose-performance-audit and .opencode/skills/compose-performance-audit in your project.
SKILL.md names no scripts, command-line tools or credentials: Compose Performance Audit is instructions for the agent only.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
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.
Compose Performance Audit has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
About 1.2k tokens (SKILL.md is roughly 5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Compose Performance Audit: Testing Compose In Release Mode (rosuH/EasyWatermark, 1.9k stars), Deferring State Reads (rosuH/EasyWatermark, 1.9k stars), Diagnosing Compose Stability (rosuH/EasyWatermark, 1.9k stars) and Generating Baseline Profiles (rosuH/EasyWatermark, 1.9k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
ModinMobileSTS (a GitHub organization) maintains it in ModinMobileSTS/SlayTheAmethystModded, which has 402 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on October 7, 2026.
Source: ModinMobileSTS/SlayTheAmethystModded on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.
