ClaudSkills / Engineering / observability

Tracing Recompositions At Runtime

Q: What is a Claude Code skill and how does the Tracing Recompositions At Runtime skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Tracing Recompositions At Runtime is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: observability · Last updated: 2026-05-27

lang:java type:debug

Use this skill to instrument a Jetpack Compose composable with `@TraceRecomposition` from `skydoves/compose-stability-analyzer` so per-recomposition diffs (which state or parameter changed, what value transition) print to logcat under the `Recomposition` tag. Works in release-with-debug-symbols builds where Android Studio Layout Inspector cannot reach, and feeds the IntelliJ / Android Studio plugin's live recomposition heatmap (green under 10, yellow 10–50, red 50+). Covers the Gradle plugin setup, the `ComposeStabilityAnalyzer.setEnabled(BuildConfig.DEBUG)` runtime gate that keeps the instrumentation out of production, and the handoff to debug-time Layout Inspector and CI `stabilityCheck`. Use when the user mentions `@TraceRecomposition`, "trace recomposition", "compose-stability-analyzer", "recomposition logcat", "recomposition heatmap", "release-mode recomposition counts", or needs to confirm a stability fix in a release-like build.

About this skill (catalog notes)

Tracing Recompositions At Runtime includes explicit scope boundaries (an explicit 'when not to use' or 'out of scope' section); a dedicated installation section; pricing or quota commentary. At roughly 2,071 words the SKILL.md is on the longer end of the catalog distribution.

License: Apache-2.0
Original author: skydoves
Indexed lastmod: 2026-05-27
Catalog position: Engineering · observability
Indexed related skills: 10

How Tracing Recompositions At Runtime fits the catalog

Tracing Recompositions At Runtime sits in the Engineering category under the observability sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

Layout Inspector counts recompositions and surfaces Argument Change Reasons, but it works only in debug, where Live Literals and the interpreted Compose runtime inflate counts. @TraceRecomposition from skydoves/compose-stability-analyzer instruments a composable at compile time and emits per-recomposition diffs (which state changed, what value transition) to logcat under the Recomposition tag. The instrumentation works in any build the developer enables it for — including release-with-debug-symbols — and feeds the IntelliJ / Android Studio plugin's live recomposition heatmap.

What this skill does

Tracing Recompositions At Runtime is a community-contributed Claude Code skill in the observability sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/tracing-recompositions-at-runtime/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user mentions `@TraceRecomposition`, "trace recomposition", "compose-stability-analyzer", "recomposition logcat", "recomposition heatmap", "release-mode recomposition counts", or needs to confirm a stability fix in a release-like build.

Who uses this skill

The Tracing Recompositions At Runtime Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 93,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/tracing-recompositions-at-runtime
curl -L https://claudskills.com/skills/tracing-recompositions-at-runtime/SKILL.md \
  -o ~/.claude/skills/tracing-recompositions-at-runtime/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/tracing-recompositions-at-runtime/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/tracing-recompositions-at-runtime/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\tracing-recompositions-at-runtime\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Tracing Recompositions At Runtime Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/tracing-recompositions-at-runtime/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Tracing Recompositions At Runtime skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Tracing Recompositions At Runtime skill?

Use Tracing Recompositions At Runtime when your Claude Code task falls under the Engineering category — specifically in the observability area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Tracing Recompositions At Runtime" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Tracing Recompositions At Runtime skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Tracing Recompositions At Runtime is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/skydoves/compose-performance-skills/blob/HEAD/measurement/tracing-recompositions-at-runtime/SKILL.md
License: Apache-2.0
Author: skydoves

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

skydoves. (2026). Tracing Recompositions At Runtime [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/tracing-recompositions-at-runtime/

BibTeX

@misc{tracing-recompositions-at-runtime-2026,
  author    = {skydoves},
  title     = {Tracing Recompositions At Runtime [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/tracing-recompositions-at-runtime/}
}

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