Crash Instrumentation
nexus-labs-automation/mobile-observability
Set up crash instrumentation with actionable context. An agent skill from nexus-labs-automation/mobile-observability.
A skill your agent uses when setting up or working with Retrofit in Android — service interface definitions, coroutines integration, OkHttp configuration, Hilt module setup, and error handling in…
Install Android Retrofit
$ npx skills add rcosteira79/android-skills --skill android-retrofit -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install rcosteira79/android-skills android-retrofit --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/rcosteira79/android-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/android-skills/skills/android-retrofit .claude/skills/android-retrofit && 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 "android-retrofit" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/android-retrofit into .claude/skills/android-retrofit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "android-retrofit", 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/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/android-retrofitType 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 rcosteira79/android-skills --skill android-retrofit -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install rcosteira79/android-skills android-retrofit --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ 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/android-retrofit .agents/skills/android-retrofit && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "android-retrofit" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/android-retrofit into .agents/skills/android-retrofit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "android-retrofit", 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 rcosteira79/android-skills --skill android-retrofit -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install rcosteira79/android-skills android-retrofit --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ 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/android-retrofit .cursor/skills/android-retrofit && 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 "android-retrofit" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/android-retrofit into .cursor/skills/android-retrofit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "android-retrofit", 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/rcosteira79/android-skills.git --path plugins/android-skills/skills/android-retrofit--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 rcosteira79/android-skills --skill android-retrofit -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install rcosteira79/android-skills android-retrofit --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ 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/android-retrofit .gemini/skills/android-retrofit && 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 "android-retrofit" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/android-retrofit into .gemini/skills/android-retrofit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "android-retrofit", 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 rcosteira79/android-skills android-retrofitInstalls 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 rcosteira79/android-skills --skill android-retrofit -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ 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/android-retrofit .github/skills/android-retrofit && 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 "android-retrofit" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/android-retrofit into .github/skills/android-retrofit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "android-retrofit", 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 rcosteira79/android-skills --skill android-retrofit -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install rcosteira79/android-skills android-retrofit --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ 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/android-retrofit .opencode/skills/android-retrofit && 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 "android-retrofit" agent skill from https://github.com/rcosteira79/android-skills/tree/main/plugins/android-skills/skills/android-retrofit into .opencode/skills/android-retrofit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "android-retrofit", 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
android-retrofit- GitHub stars
- 153
- Token cost
- ~942 tokens
- SKILL.md length
- 343 words
- Files
- 1
- Skills in repo
- 21
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when setting up or working with Retrofit in Android — service interface definitions, coroutines integration, OkHttp configuration, Hilt module setup, and error handling in…
- Working with Retrofit in Android — service interface definitions
- SKILL.md covers Service interface, OkHttp & JSON, Auth: interceptor, and the… and Error handling, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Coroutines integration
What it does
Android Retrofit is an agent skill from rcosteira79/android-skills. Use when setting up or working with Retrofit in Android — service interface definitions, coroutines integration, OkHttp configuration, Hilt module setup, and error handling in the repository layer.
Its SKILL.md is about 940 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 Development, covering Error handling. It works with Android. The repository describes itself as: Claude Code skills for Android & KMP development. The licence is MIT.
When your agent uses it
- Working with Retrofit in Android — service interface definitions
- Coroutines integration
- OkHttp configuration
- Hilt module setup
Example prompts
- “/android-retrofit”
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 kotlin).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
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
Android Retrofit loads about 942 tokens when it runs. Until then it costs about 54 tokens; SKILL.md has 343 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.
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). 343 words, ~942 tokens.
Download SKILL.mdSave it as
.claude/skills/android-retrofit/SKILL.md (or your agent's skills folder).- name
- android-retrofit
- description
- Use when setting up or working with Retrofit in Android — service interface definitions, coroutines integration, OkHttp configuration, Hilt module setup, and error handling in the repository layer.
Android Networking with Retrofit
Modern Retrofit setup for Android using coroutines, kotlinx.serialization, and Hilt. This reference covers the decisions that are easy to get wrong, not the standard boilerplate of service interfaces, Hilt module wiring, and the converter setup.
Service interface
Declare every endpoint as a suspend function. Return the body type directly — Retrofit throws HttpException on non-2xx, giving a clean try/catch at the repository boundary. Use Response<T> only when you need the status code, headers, or error body (e.g. server-side validation messages):
// Direct body — throws HttpException on non-2xx; the common case
@GET("users/{user}/repos")
suspend fun listRepos(@Path("user") user: String): List<Repo>
// Response wrapper — only when you need code/headers/error body
@GET("users/{user}")
suspend fun getUser(@Path("user") user: String): Response<User>Wrapping every endpoint in Response<T> "just in case" forces callers to check isSuccessful and handle a nullable body even when only the body matters — don't.
OkHttp & JSON
Standard wiring (in a Hilt @Module/@Provides @Singleton): HttpLoggingInterceptor with its level gated on BuildConfig.DEBUG, sensible connect/read timeouts, and the kotlinx.serialization converter (json.asConverterFactory("application/json".toMediaType())). For an API that's loose with its payloads, configure:
Json { ignoreUnknownKeys = true; coerceInputValues = true; isLenient = true }Auth: interceptor, and the throw-vs-proceed decision
Attach the token via an Interceptor, not a per-endpoint @Header — a single missed @Header parameter is an unauthenticated request that fails at runtime, not compile time. The part most often gotten wrong is what to do when the token is absent:
class AuthInterceptor @Inject constructor(
private val tokenProvider: TokenProvider,
) : Interceptor {
override fun intercept(chain: Interceptor.Chain): Response {
val token = tokenProvider.getToken()
?: throw IOException("Auth token unavailable") // fail fast — see note below
val request = chain.request().newBuilder()
.header("Authorization", "Bearer $token")
.build()
return chain.proceed(request)
}
}Throw vs proceed: Throw when all endpoints require auth — a missing token should surface immediately rather than silently producing a confusing 401. Proceed without the header only if the same
OkHttpClientis shared between authenticated and public endpoints:?: return chain.proceed(chain.request()). Silently proceeding when every call needs auth is a common mistake.
Error handling
The repository is the error boundary: catch HttpException/IOException there and map them to a domain error type — never let Retrofit/OkHttp exception types reach the ViewModel, and never expose Retrofit DTOs to it. Don't redefine the error hierarchy here; see android-skills:android-data-layer for the repository pattern and the shared DataError taxonomy.
Checklist
- All service functions are
suspend -
Response<T>only when you need the status code, headers, or error body -
OkHttpClientlogging gated behindBuildConfig.DEBUG; sensible timeouts set - Auth applied via an
Interceptor, with the token-absent policy chosen (throw vs proceed) - Network exceptions mapped to domain types at the repository; DTOs never reach the ViewModel
© rcosteira79, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in plugins/android-skills/skills/android-retrofit of rcosteira79/android-skills.
Open the folder on GitHubat commit 0f9af5a
Compare with similar skills
Android Retrofit 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 |
|---|---|---|---|---|---|---|
| Android Retrofit this skillrcosteira79/android-skills | 153 | — | ~942 | Automated safety check: Pass | MIT | |
| Crash Instrumentationnexus-labs-automation/mobile-observability | 116 | — | ~744 | Automated safety check: Pass | MIT | |
| Quality Test Pilotnekomangaorg/Neko | 2.8k | — | ~1.1k | Automated safety check: Pass | Apache-2.0 | |
| Mole Bug Patternstw93/Mole | 70k | — | ~2k | Automated safety check: Pass | GPL-3.0 | |
| Native Data FetchingCherryHQ/cherry-studio-app | 4k | 6 repos | ~2.9k | Automated safety check: Notes | MIT | |
| Android UI Visual Reviewpermissionlesstech/bitchat-android | 7.8k | — | ~2.6k | Automated safety check: Pass | GPL-3.0 |
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Related
Works with
Categories
Questions about Android Retrofit
What does Android Retrofit do?
A skill your agent uses when setting up or working with Retrofit in Android — service interface definitions, coroutines integration, OkHttp configuration, Hilt module setup, and error handling in…. Android Retrofit is an agent skill from rcosteira79/android-skills. Use when setting up or working with Retrofit in Android — service interface definitions, coroutines integration, OkHttp configuration, Hilt module setup, and error handling in the repository layer.
When should I use Android Retrofit?
Android Retrofit fits situations like: working with Retrofit in Android — service interface definitions; coroutines integration; okHttp configuration; hilt module setup.
How do I install Android Retrofit in Claude Code?
Run `npx skills add rcosteira79/android-skills --skill android-retrofit -a claude-code`. Or copy the skill folder (plugins/android-skills/skills/android-retrofit in rcosteira79/android-skills) into .claude/skills/android-retrofit in your project. Claude Code loads it when a task matches its description.
How do I install Android Retrofit in Codex?
Run `npx skills add rcosteira79/android-skills --skill android-retrofit -a codex`. Or copy the skill folder (plugins/android-skills/skills/android-retrofit in rcosteira79/android-skills) into .agents/skills/android-retrofit in your project. Codex loads it when a task matches its description.
Can I use Android Retrofit 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 android-retrofit -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/android-retrofit, .gemini/skills/android-retrofit, .github/skills/android-retrofit and .opencode/skills/android-retrofit in your project.
What does Android Retrofit need to run?
SKILL.md names no scripts, command-line tools or credentials: Android Retrofit is instructions for the agent only.
Does Android Retrofit access the network?
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.
Is Android Retrofit 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 Android Retrofit use?
Android Retrofit 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 Android Retrofit use?
About 942 tokens (SKILL.md is roughly 3.8k 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 Android Retrofit?
Skills that share tags, products or a category with Android Retrofit: Crash Instrumentation (nexus-labs-automation/mobile-observability, 116 stars), Quality Test Pilot (nekomangaorg/Neko, 2.8k stars), Mole Bug Patterns (tw93/Mole, 70k stars) and Native Data Fetching (CherryHQ/cherry-studio-app, 4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Android Retrofit?
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.