An analyzer for Android build files and R8 rules. R8 is the Android tool that shrinks, optimizes, and protects release apps.

Use it to review ProGuard or R8 configuration, find redundant keep rules, troubleshoot release settings, and choose an analysis method based on the installed Android build tools.

It identifies duplicate or overly broad rules that can make builds harder to maintain or prevent the app from being reduced effectively.

How arindamxd/camerax-android configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to arindamxd/camerax-android. 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/arindamxd/camerax-android/master/.agents/skills/r8-analyzer/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/arindamxd/camerax-android

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/arindamxd/camerax-android/r8-analyzer/github.svg)](https://agentmods.dev/skills/arindamxd/camerax-android/r8-analyzer)

Your own site

<a href="https://agentmods.dev/skills/arindamxd/camerax-android/r8-analyzer"><img src="https://agentmods.dev/badge/skills/arindamxd/camerax-android/r8-analyzer/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/arindamxd/camerax-android/r8-analyzer"><img src="https://agentmods.dev/badge/skills/arindamxd/camerax-android/r8-analyzer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,149 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 97% 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.

Model	Per session	Once invoked
Fable 5.1	$0.00060	$0.01149
Opus 5.5	$0.00024	$0.00460
Sonnet 5.5	$0.00012	$0.00230
Haiku 4.5	$0.00006	$0.00115

Measured 2mo ago against content hash 0578f4f75159, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

r8-analyzer 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 2mo 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

97% identical to r8-analyzer — 58 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/r8-analyzer/SKILL.md · 69 lines

How it starts

The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Step 1. Setup and configuration check

Inspect build.gradle, build.gradle.kts, and gradle.properties.
Use references/CONFIGURATION.md to identify missing optimizations.
AGP : If version is lower than 9.0, suggest migration to 9.0 for build-time performance improvement.
Full Mode : Verify android.enableR8.fullMode=false is removed from gradle.properties.

Step 2. Analysis path selection

Inspect build.gradle, build.gradle.kts, and gradle.properties and libs.versions.toml to get the AGP and R8 versions.
If AGP >= 9.3.0 : Proceed to Path A (Standalone Task).
If AGP < 9.3.0 and R8 >= 9.3.7-dev : Proceed to Path B (Quantitative).
If none of the conditions are met, proceed to Path C (Heuristic).

Path A: Standalone Gradle task (AGP >= 9.3.0)

Step 1: Run standalone task : Run ./gradlew :app:analyzeReleaseR8Config to evaluate the R8 configuration. You MUST wait for this command to finish before proceeding.
Step 2: Convert to JSON : The report is generated at app/build/reports/r8/r8-config-analyzer-release.pb. You MUST explicitly run the conversion script by executing: python3 .agents/skills/r8-analyzer/scripts/convert_pb_to_json.py. Wait for this command to finish.
Step 3: Analyze : You MUST explicitly run the analysis script by executing: python3 .agents/skills/r8-analyzer/scripts/analyze.py. This outputs tmp/keepradius/analysis_result.txt. Wait for this command to finish.

Path B: Quantitative data generation (R8 >= 9.3.7-dev and AGP < 9.3.0)

Step 1: Check requirements : Python and protobuf package are mandatory.
Step 2: Generate and analyze : You MUST run the shell commands described in references/CONFIGURATION-ANALYZER.md to generate the proto file using R8 configuration analyzer, convert it to JSON and analyze the result.
Step 3: Analyze : You MUST ensure the analysis produces tmp/keepradius/analysis_result.txt for scores and rule impact metrics.

Read the full file on GitHub · 69 lines

Files

What ships with it

8 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.

2mo ago First seen · 69 lines · 60 tokens per session scan A 0578f4f75159

Subscribe to this mod's changes

r8-analyzer is a skill published in the GitHub repository arindamxd/camerax-android (132 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 60 tokens to every session and 1,149 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 97% identical to r8-analyzer, differing in 58 lines, and is treated as a copy.

Mobile android camerax jetpack kotlin

r8-analyzer next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
r8-analyzerarindamxd/camerax-android	Skill	132	1mo ago	Apache-2.0	A	60	Claude Code, Codex
sceneview-iossceneview/sceneview	Skill	1.4k	yesterday	Apache-2.0	A	148	Codex
sceneviewsceneview/sceneview	Skill	1.4k	yesterday	Apache-2.0	A	156	Codex
compose-animationschrisbanes/skills	Skill	1.1k	yesterday	Apache-2.0	A	64	Claude Code
compose-focus-navigationchrisbanes/skills	Skill	1.1k	yesterday	Apache-2.0	A	41	Claude Code
kotlin-androidericrisco/rsc-harness	Skill	503	2d ago	MIT	A	78	Claude Code, Codex
compose-multiplatformericrisco/rsc-harness	Skill	503	2d ago	MIT	A	80	Claude Code, Codex

camerax-android: Skill for Claude Code