Lightrion Skills

Claude Agent Skills for Android development, powered by the Lightrion AOSP MCP server.

These skills teach Claude how to work effectively with Android source code — both AOSP platform work and Android app development. They turn Claude from a general-purpose assistant into a domain expert that knows when to query Lightrion, how to read the results, what to flag, and how to cite findings precisely.

Available skills

Skill	Audience	What it does
aosp-platform-development	Framework engineers, OEM platform teams, AAOS automotive devs, ROM developers	Teaches Claude the MCP-and-local workflow for AOSP work, version-anchored citations, safety-pattern detection, and cs.android.com integration
android-app-development	Android app developers using Kotlin/Java + Jetpack	Teaches Claude when to look at AOSP source for app-dev questions (Doze, broadcasts, services, permissions, behavior changes), how to translate platform code back to app-developer language

Both skills use the same Lightrion MCP server. They differ in audience, depth, and trigger conditions — Claude auto-selects the right one based on the context of your work.

Installation in Claude Code

Option A: Clone into your global skills directory

cd ~/.claude/skills/
git clone https://github.com/Lightrion/skills.git lightrion-skills

# Verify
ls ~/.claude/skills/lightrion-skills/
# Should show: aosp-platform-development/  android-app-development/

The skills are picked up automatically by Claude Code on the next session. No manual loading needed — Claude reads the frontmatter at startup and activates each skill when its description matches your current context.

Option B: Project-local

If you want the skills active only in a specific project (e.g., your AOSP checkout):

cd /path/to/your/project
mkdir -p .claude/skills
cd .claude/skills
git clone https://github.com/Lightrion/skills.git lightrion-skills

Setting up the Lightrion MCP server

Both skills depend on having the Lightrion AOSP MCP server connected in Claude Code. Free, rate-limited, no signup beyond the token.

1. Get a token at https://aosp-rag.lightrion.com
2. Add to your Claude Code MCP config (~/.claude.json or via the Claude Code UI):

{
  "mcpServers": {
    "lightrion-aosp-public": {
      "url": "https://aosp-rag.lightrion.com/mcp/",
      "headers": {
        "Authorization": "Bearer <your-token>"
      }
    }
  }
}

3. Restart Claude Code. The MCP tools search_code, get_chunk, get_file, and list_versions should now be available.

How the skills work together

Claude loads both skills' descriptions into its system prompt at the start of each session (a few hundred tokens total — negligible). When you give Claude a task, it reads the descriptions and activates the one matching your context:

• Working in an AOSP checkout, asking about CarService internals? → aosp-platform-development activates.
• Working in your app's MainActivity.kt, asking why a broadcast isn't delivered? → android-app-development activates.

Only the activated skill's full content is loaded, keeping context usage low.

What the skills don't do

These skills do not include the Lightrion MCP server itself — they're just instructions for Claude on how to use it well. You need to install both: the MCP server (one config line) and the skills (one clone).

These skills also don't replace cs.android.com for symbol navigation (jump-to-definition, call hierarchy, xref). Lightrion is for semantic retrieval. Both skills explicitly suggest linking to cs.android.com when navigation is what the user wants.

Versioning

These skills are versioned together with the indexed AOSP releases they expect on the Lightrion server:

Version	Indexed AOSP releases
0.1.0	13.0.0_r84, 14.0.0_r75, 15.0.0_r36, 16.0.0_r4

When the Lightrion server bumps to newer release tags (e.g., r5 for quarterly maintenance), the skills' references/version-conventions.md will be updated.

Contributing

Open an issue or PR at https://github.com/Lightrion/skills if:

• You hit a question where the skill should have helped but didn't — share the prompt so we can tighten the description.
• You have a workflow pattern that would benefit other Android developers using Claude.
• You spot an error in the safety patterns or version map.

License

Apache 2.0. You're free to fork, adapt, redistribute. Attribution appreciated.

See also

• Lightrion homepage
• search.lightrion.com — web UI to try the MCP search interactively (free, rate-limited)
• Anthropic's Agent Skills docs
• Agent Skills open standard