diff --git a/docs/src/content/docs/reference/glossary.md b/docs/src/content/docs/reference/glossary.md
index 779627891b8..6f4f8bf6fd2 100644
--- a/docs/src/content/docs/reference/glossary.md
+++ b/docs/src/content/docs/reference/glossary.md
@@ -125,6 +125,14 @@ Configuration field in the `create-pull-request` safe output specifying which br
 
 A safe output capability for hiding or minimizing GitHub comments without requiring write permissions. When minimized, comments are classified as SPAM. Requires GraphQL node IDs to identify comments. Useful for content moderation workflows.
 
+### Assign to Agent
+
+A safe output capability (`assign-to-agent:`) that programmatically assigns the GitHub Copilot coding agent to existing issues or pull requests. Automates the standard GitHub workflow for delegating implementation tasks to Copilot. Supports cross-repository PR creation via `pull-request-repo` and agent model selection via `model`. See [Assign to Copilot](/gh-aw/reference/assign-to-copilot/).
+
+### Custom Safe Outputs
+
+An extension mechanism for safe outputs that enables integration with third-party services beyond built-in GitHub operations. Defined under `safe-outputs.jobs:`, custom safe outputs separate read and write operations: agents use read-only MCP tools for queries, while custom jobs execute write operations with secret access after agent completion. Supports services like Slack, Notion, Jira, or any external API. See [Custom Safe Outputs](/gh-aw/reference/custom-safe-outputs/).
+
 ### Unassign from User
 
 A safe output capability for removing user assignments from issues or pull requests. Supports an `allowed` list to restrict which users can be unassigned, and a `blocked` list using glob patterns to prevent unassignment of specific users regardless of the allow list. Configured via `unassign-from-user:` in `safe-outputs`.
@@ -155,6 +163,10 @@ Optional workflow metadata for categorization and organization. Enables filterin
 
 Controls over external domains and services a workflow can access. Configured via `network:` section with options: `defaults` (common infrastructure), custom allow-lists, or `{}` (no access).
 
+### Stop After
+
+A workflow configuration field (`stop-after:`) that automatically prevents new runs after a specified time limit. Accepts absolute dates (`YYYY-MM-DD`, ISO 8601) or relative time deltas (`+48h`, `+7d`). Minimum granularity is hours. Useful for trial periods, experimental features, and cost-controlled schedules. Recompile with `gh aw compile --refresh-stop-time` to reset the deadline. See [Ephemerals](/gh-aw/guides/ephemerals/).
+
 ### Triggers
 
 Events that cause a workflow to run, defined in the `on:` section of frontmatter. Includes issue events, pull requests, schedules, manual runs, and slash commands.
@@ -237,6 +249,10 @@ Settings limiting how many workflow instances can run simultaneously. Configured
 
 Specialized instructions customizing AI agent behavior for specific tasks or repositories. Stored as agent files (`.github/agents/*.agent.md`) for Copilot Chat or instruction files (`.github/copilot/instructions/`) for path-specific Copilot instructions.
 
+### Ephemerals
+
+A category of features for automatically expiring workflow resources to reduce repository noise and control costs. Includes workflow stop-after scheduling, safe output expiration (auto-closing issues, discussions, and pull requests), and hidden older status comments. See [Ephemerals](/gh-aw/guides/ephemerals/).
+
 ### Environment Variables (env)
 
 Configuration section in frontmatter defining environment variables for the workflow. Variables can reference GitHub context values, workflow inputs, or static values. Accessible via `${{ env.VARIABLE_NAME }}` syntax.