docs: record agent-skills setup (Gitea+tea tracker, triage labels, domain docs)

AGENTS.md

@@ -67,3 +67,17 @@ hidden, color?, steps?, request{settings,headers,body}, permissions[{action,reso
   injected content must have frontmatter stripped; serve prints its Basic-auth password.
 - Agent `steps` replaces `maxSteps`; `temperature`/`top_p` go under `request.body` (not yet sent by
   the runner — avoid).
+
+## Agent skills
+
+### Issue tracker
+
+Issues live in this repo's Gitea Issues (`git.arthurerlich.de`), driven via the `tea` CLI; relations are body conventions (`Part of #`, `Blocked by:`) since Gitea has no sub-issues. See `docs/agents/issue-tracker.md`.
+
+### Triage labels
+
+Default five-role vocabulary (`needs-triage`, `needs-info`, `ready-for-agent`, `ready-for-human`, `wontfix`), label strings equal to role names. See `docs/agents/triage-labels.md`.
+
+### Domain docs
+
+Single-context: one `GLOSSARY.md` + `docs/adr/` at the repo root. See `docs/agents/domain.md`.