Claude Code plugins from Tessary AI — drop-in tooling for teams building with LLMs.
In any Claude Code session, add this marketplace and install a plugin:
/plugin marketplace add tessaryai/plugins
/plugin install <plugin-name>@tessary
To update later:
/plugin marketplace update tessary
- tessary — self-host the open-source Tessary reliability platform and wire your repo's tracing to it.
- evals — connect your repo to evals.tessary.ai and work with your evals from the coding agent.
- crew — a multi-agent dev harness that triages, implements, reviews, and maintains your repo.
tessary sets up Tessary, the open-source, self-hosted reliability
platform for AI agents in production. /setup installs and starts a local instance; /instrument tags your
repo's model-call spans with tessary.call_site.id and wires OTLP export; /connect registers the
instance's read-only MCP tools (cases, findings, traces, spans) into this Claude Code session.
/plugin install tessary@tessary
Then run /setup in a Claude Code session, or just ask Claude to "set up tessary."
See the plugin README for the full flow.
evals connects your repo to evals.tessary.ai: a one-time device link, OTLP trace wiring, native platform tools in Claude Code, and /evals:instrument to tag your LLM call sites. From there the platform's observer authors and maintains your eval bundle — graders arrive as draft PRs against your repo, grounded in your real traffic.
/plugin install evals@tessary
Then run /evals:connect in a Claude Code session, or just ask Claude to "connect this repo to tessary."
See the plugin README for the full flow.
crew is a multi-agent development harness. Hand it a goal and an orchestrator decides what
needs doing and does it — triaging issues, implementing changes through a deliberative team,
reviewing PRs, responding to review feedback, and keeping docs and knowledge current —
running unattended up to a review-ready PR (it never merges; you do). You can also invoke
any single capability directly.
/plugin install crew@tessary
Then either let it drive — /crew:run "close out the open bugs" — or call a primitive
yourself, e.g. /crew:review-pr 42 or /crew:triage-bug 17. Run /crew:init-config once to
tune it to your repo. This release is local-first (runs in your own Claude Code session);
GitHub Actions packaging is planned.
See the plugin README for the full skill list and configuration.
MIT — see LICENSE.