diff --git a/docs/src/content/docs/reference/glossary.md b/docs/src/content/docs/reference/glossary.md
index 848868b5972..858fc93cae7 100644
--- a/docs/src/content/docs/reference/glossary.md
+++ b/docs/src/content/docs/reference/glossary.md
@@ -615,10 +615,18 @@ A compilation target allowing the gh-aw compiler to run in browser environments
 
 A GitHub Next project that builds on GitHub Agentic Workflows to enable continuous, metric-driven optimization. Define a goal, a set of files the agent may modify, and an evaluation command that outputs a numeric metric — Autoloop runs on a schedule, proposes changes, and retains only those that improve the metric. Useful for continuously improving test coverage, bundle size, build times, or custom research objectives. See [Autoloop on GitHub](https://github.com/githubnext/autoloop).
 
+### ARC (Actions Runner Controller)
+
+A Kubernetes operator that manages GitHub Actions self-hosted runners as pods. When combined with the Docker-in-Docker (DinD) sidecar pattern, the runner container and the Docker daemon container have separate `/tmp` filesystems. AWF detects this topology at runtime by inspecting `DOCKER_HOST` and automatically passes `--docker-host-path-prefix` to bridge the split mount paths. No manual configuration is required for `v0.25.43`+ of AWF. See the [AWF sandbox reference](/gh-aw/reference/sandbox/).
+
 ### AWF (Agent Workflow Firewall)
 
 The default coding agent sandbox that isolates AI agent execution in a container with network egress control through domain-based access lists. AWF makes the host filesystem and environment variables available inside the container while restricting outbound network access to configured domains. Enabled with `sandbox.agent: awf` (the default when `sandbox` is not specified). Use `sandbox.agent.version` to pin a specific AWF release for reproducible builds. See [Sandbox Configuration](/gh-aw/reference/sandbox/).
 
+### AWF Reflect Route (`/reflect`)
+
+A runtime HTTP endpoint exposed by the AWF API proxy at `http://api-proxy:10000/reflect`. Returns the currently configured inference providers and their model availability for the active run. Use this route in shared workflows or tools that need to discover gateway endpoints, check provider availability, or select a model dynamically at runtime without hardcoding upstream API URLs. The response includes an `endpoints` array (with `provider`, `base_url`, `configured`, and `models` fields) and a `models_fetch_complete` flag. See [AWF Reflect Route](/gh-aw/reference/awf-reflect/).
+
 ### Bridge Pattern
 
 A cross-repository event forwarding architecture for [SideRepoOps](#siderepoops) workflows. Because GitHub Actions only delivers webhook events to the repository where they occur, `slash_command:` triggers cannot fire directly in a side repository. The bridge pattern solves this with two workflows: a thin relay workflow in the main repository that receives the slash command and forwards it to the side repository via `workflow_dispatch`, and a worker workflow in the side repository that performs the actual work. See [Slash Commands in SideRepoOps](/gh-aw/patterns/side-repo-ops/#slash-commands).