# New Analyzer > Guide for adding a new AI coding agent analyzer to Splitrail. Use when implementing support for a new tool like Copilot, Cline, or similar. Use when this capability is needed. - Skill: `tomevault-io/new-analyzer` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/new-analyzer` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/new-analyzer/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: AI & ML - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/new-analyzer --- # Adding a New Analyzer Splitrail tracks token usage from AI coding agents. Each agent has its own "analyzer" that discovers and parses its data files. ## Checklist 1. Add variant to `Application` enum in `src/types.rs` 2. Create `src/analyzers/{agent_name}.rs` implementing `Analyzer` trait from `src/analyzer.rs` 3. Export in `src/analyzers/mod.rs` 4. Register in `src/main.rs` 5. Add tests in `src/analyzers/tests/{agent_name}.rs`, export in `src/analyzers/tests/mod.rs` 6. Update README.md 7. (Optional) Add model pricing to `src/models.rs` if agent doesn't provide cost data Test fixtures go in `src/analyzers/tests/source_data/`. See `src/types.rs` for message and stats types. ## VS Code Extensions Use `discover_vscode_extension_sources()` and `get_vscode_extension_tasks_dirs()` helpers from `src/analyzer.rs`. ## Reference Analyzers - **Simple JSONL CLI**: `src/analyzers/pi_agent.rs`, `src/analyzers/piebald.rs` - **VS Code extension**: `src/analyzers/cline.rs`, `src/analyzers/roo_code.rs` - **Complex with dedup**: `src/analyzers/claude_code.rs` - **External data dirs**: `src/analyzers/opencode.rs` --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/piebald-ai) — claim your Tome and manage your conversions.