README: add ollie-9p client section, fix stale pkg/ paths

README.md

@@ -70,7 +70,47 @@ Session IDs are Unix nanosecond timestamps with a random suffix (e.g. `174427668
 mk
 ```
 
-Installs `olliesrv` to `$HOME/bin`.
+Installs `olliesrv` and `ollie-9p` to `$HOME/bin`.
+
+## ollie-9p
+
+`ollie-9p` is the 9P client used internally by agents and tool scripts to interact with the server. It auto-discovers the server via `$NAMESPACE` and identifies the caller via `$OLLIE_UNAME`.
+
+```
+ollie-9p [-a addr] <command> <path>
+```
+
+| Command | Description |
+|---|---|
+| `read path` | Read file contents to stdout |
+| `write path` | Write stdin to file |
+| `rdwr path` | Write stdin then read response (request-response files) |
+| `stat path` | Print file metadata |
+| `ls [-l] [-d] path` | List directory contents |
+| `create path` | Create a file |
+| `remove path` | Remove a file/directory |
+| `mkdir path` | Create a directory |
+
+Examples:
+
+```sh
+# Submit a prompt
+echo "explain this code" | ollie-9p write s/ollie/prompt
+
+# Load a tool
+echo 'file_edit' | ollie-9p rdwr tools
+
+# Route a task to a model
+echo 'implement login page' | ollie-9p rdwr route
+
+# Create a session
+echo "cwd=$PWD" | ollie-9p write s/new
+
+# Read session state
+ollie-9p read s/ollie/state
+```
+
+Tool scripts use `ollie-9p` rather than the FUSE mount so they work in sandboxed environments where the mount may not be visible.
 
 ## Usage
 
@@ -283,8 +323,8 @@ $ tail -f chat &
 $ echo "list the go files in $PWD" > prompt
 user: list the go files in /home/lkn/src/ollie
 assistant: -> shell({"cmd":"find . -name '*.go'"})
-= pkg/agent/core.go
+= agent/core.go
-  pkg/agent/loop.go
+  agent/loop.go
   ...
 assistant: The Go source files are: core.go, loop.go, ...
 $ cat state