# Telvine

> Telvine is the platform for building, measuring, and managing agent plugins. Plugins are installable apps for agent harnesses; Telvine measures the `SKILL.md` capabilities inside them so builders can see usage, errors, latency, outcomes, and version-over-version impact.

Agent harnesses such as Claude Cowork, Claude Code, and Codex are becoming the operating system for knowledge work, and plugins are the apps installed on them. Skills are capabilities inside those plugins. Telvine is the analytics, versioning, and management layer for that ecosystem.

## What is an agent plugin?

An agent plugin is an installable package of capabilities for an agent harness. It can contain Skills, tools, connectors, hooks, and other integrations. A Skill is a task-specific capability - commonly a `SKILL.md` plus optional scripts and references - that executes within the plugin.

## What Telvine does

- Analytics & observability: invocations, error rates, latency percentiles, activation funnels, and retention for the Skills inside a plugin.
- Version comparison: side-by-side comparison of capability versions on error rate, latency, and user rating, with statistical-significance testing so you know whether a release helped, regressed, or did nothing.
- Outcomes & autonomy: outcome mix (completed / partial / blocked), autonomy rate (share of runs needing no human step-in), downstream actions triggered, and per-script reliability.
- Pipe it anywhere: a typed, closed event envelope (no prompts or user content) that streams to Telvine, fans out via webhooks, exports to CSV, or lands in your warehouse or PostHog.
- CLI: wrap a `SKILL.md` inside a plugin and start emitting events with a single command.

## Key facts

- Category: agent plugin analytics, observability, and management platform.
- Supported runtimes: runtime-agnostic; models Claude Cowork, Claude Code, and Codex CLI today.
- Privacy: the event schema carries only typed metadata (counts, durations, enums, ratings) — never prompts, file contents, or other user content.
- Pricing: free to start.

## Links

- Product / dashboard: https://app.telvine.com
- Learn (agent plugin and Skill guides): https://telvine.com/learn
- Documentation: https://telvine.com/docs
- Full LLM context: https://telvine.com/llms-full.txt
- Home: https://telvine.com

## FAQ

- What is an agent plugin? An installable package of Skills, tools, and integrations for an agent harness; plugins are the apps of the agent operating system.
- What is Telvine? The platform for building, measuring, and managing agent plugins through capability-level telemetry.
- Which agents does it support? Any agent that can run a plugin capability and emit an event; the schema already models Claude Cowork, Claude Code, and Codex CLI.
- Does it collect user content? No — only a closed envelope of typed metadata, never prompts or file contents.
- Why now? Agent harnesses are becoming the operating system for knowledge work and plugins are the apps; the builders who measure iterate fastest as the wave arrives.