diff --git a/doc/env.sample b/doc/env.sample
new file mode 100644
index 0000000..e2deba8
--- /dev/null
+++ b/doc/env.sample
@@ -0,0 +1,44 @@
+# ollie environment variables
+# Copy relevant lines to ~/.config/ollie/env (KEY=VALUE, one per line)
+# Lines beginning with # and blank lines are ignored.
+# Inline comments are supported: KEY=value # comment
+
+# Mount path for the 9P filesystem (default: ~/mnt/ollie)
+#OLLIE=~/mnt/ollie
+
+# Default backend (default: ollama)
+# Supported: ollama, openai, openrouter, anthropic, copilot, kiro
+#OLLIE_BACKEND=ollama
+
+# Default model name (backend-specific default if unset)
+#OLLIE_MODEL=
+
+# Tool scripts directory, colon-separated (default: ~/.config/ollie/tools)
+#OLLIE_TOOLS_PATH=~/.config/ollie/tools
+
+# Skills directory, colon-separated (default: ~/.config/ollie/skills)
+#OLLIE_SKILLS_PATH=~/.config/ollie/skills
+
+# Plans directory (default: ~/.config/ollie/plans)
+#OLLIE_PLAN_PATH=~/.config/ollie/plans
+
+# Memory directory (default: ~/.config/ollie/memory)
+#OLLIE_MEMORY_PATH=~/.config/ollie/memory
+
+# Backend-specific settings
+
+# ollama
+#OLLIE_OLLAMA_URL=http://localhost:11434
+
+# openai / openrouter
+#OLLIE_OPENAI_URL=
+#OLLIE_OPENAI_KEY=
+
+# anthropic
+#OLLIE_ANTHROPIC_KEY=
+
+# copilot
+#OLLIE_COPILOT_TOKEN=
+
+# kiro / codewhisperer (bearer token or sqlite:// path)
+#OLLIE_KIRO_TOKEN=
diff --git a/doc/help.md b/doc/help.md
index 7956a77..f31ff58 100644
--- a/doc/help.md
+++ b/doc/help.md
@@ -20,16 +20,20 @@ ollie/
   a/              agent configs (r/w)        ls, cat, cp, mv, rm
   backends        available backends (ro)    cat
   help            this file (ro)             cat
-  p/              prompt templates (r/w)     ls, cat, edit  (rebuilt on new session, /cwd, /agent)
+  m/              memories (r/w)             ls, cat, edit
+    idx           memory index (ro)          cat
+  p/              prompt templates (ro)      ls, cat  (rebuilt on new session, /cwd, /agent)
   pl/             plans (r/w)                ls, cat, edit
   s/              sessions                   ls
+    idx           session index (ro)         cat: id state cwd backend model, one per line
     new           create session (r/w)       cat: KV template; echo "cwd=/path" >
-    <id>/         session directory           rm -r to kill; mv to rename
+    <id>/         session directory          rm -r to kill; mv to rename
       agent       active agent (r/w)
       backend     active backend (r/w)
       chat        conversation log (ro)
       ctl         control (w)                stop, kill, clear, compact, rn <name>
       ctxsz       context size (ro)
+      cwd         working directory (r/w)
       dequeue     pop queued prompt (ro)
       enqueue     queue a prompt (w)
       mcp         MCP servers (ro)
@@ -40,9 +44,11 @@ ollie/
       state       agent state (ro)           idle | thinking | calling: <tool>
       systemprompt rendered system prompt (ro)
       usage       token counts (ro)
-      cwd         working directory (r/w)
   sk/             skills (r/w)               ls, cat, edit
+    idx           skill index (ro)           cat
+    <name>.md     skill content (r/w)
   t/              tool scripts (r/w)         ls, cat, edit, chmod
+    idx           tool index (ro)            cat
 ```
 
 ## Session management
@@ -58,7 +64,7 @@ echo stop > ~/mnt/ollie/s/<id>/ctl                   # interrupt current turn
 
 ```sh
 cat ~/mnt/ollie/backends                             # list backends
-cat ~/mnt/ollie/s/<id>/models                        # list models
+cat ~/mnt/ollie/s/<id>/models                        # list models for current backend
 echo ollama > ~/mnt/ollie/s/<id>/backend
 echo qwen3:8b > ~/mnt/ollie/s/<id>/model
 echo myagent > ~/mnt/ollie/s/<id>/agent
@@ -69,11 +75,20 @@ Writes to backend, model, and agent are rejected while the agent is running.
 ## Environment
 
 ```
-OLLIE_BACKEND       ollama | openai | openrouter | anthropic | copilot | kiro
-OLLIE_MODEL         default model name
-OLLIE_9MOUNT        mount path (default: ~/mnt/ollie)
-OLLIE_TOOLS_PATH    tool scripts directory (default: ~/.config/ollie/tools)
-OLLIE_SKILLS_PATH   skills directory (default: ~/.config/ollie/skills)
+OLLIE_BACKEND           ollama | openai | openrouter | anthropic | copilot | kiro
+OLLIE_MODEL             default model name
+OLLIE                   mount path (default: ~/mnt/ollie)
+OLLIE_TOOLS_PATH        tool scripts directory (default: ~/.config/ollie/tools)
+OLLIE_SKILLS_PATH       skills directory (default: ~/.config/ollie/skills)
+OLLIE_PLAN_PATH         plans directory (default: ~/.config/ollie/plans)
+OLLIE_MEMORY_PATH       memory directory (default: ~/.config/ollie/memory)
+
+OLLIE_OLLAMA_URL        base URL for ollama (default: http://localhost:11434)
+OLLIE_OPENAI_URL        base URL for openai-compatible backends
+OLLIE_OPENAI_KEY        API key (openai, openrouter)
+OLLIE_ANTHROPIC_KEY     API key (anthropic)
+OLLIE_COPILOT_TOKEN     bearer token (copilot)
+OLLIE_KIRO_TOKEN        bearer token or sqlite:// path (kiro)
 ```
 
 Set defaults in `~/.config/ollie/env` (KEY=VALUE, one per line).