Add sheldon plugin for agent shell function

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Entire-Checkpoint: 5215fbfb326a

Author: Syati

README.md

@@ -43,7 +43,14 @@ Use `docker compose exec` (not `docker attach`). Each `exec` spawns an independe
 
 ## Shell Function (no compose.yml needed)
 
-Add to your `~/.zshrc` to run from any project directory:
+With [sheldon](https://github.com/rossmacarthur/sheldon), add to `~/.config/sheldon/plugins.toml`:
+
+```toml
+[plugins.agent-stack]
+github = "Syati/agent-stack"
+```
+
+Or add the function directly to your `~/.zshrc`:
 
 ```bash
 agent() {

agent-stack.plugin.zsh

@@ -0,0 +1,12 @@
+agent() {
+  docker run -it \
+    -v $(pwd):/workspace \
+    -v /var/run/docker.sock:/var/run/docker.sock \
+    -v ${HOME}/.gitconfig:/home/agent/.gitconfig:ro \
+    -v agent-claude-home:/home/agent/.claude \
+    -v agent-codex-home:/home/agent/.codex \
+    -v agent-mise-data:/home/agent/.local/share/mise \
+    --env-file ${HOME}/.agent-stack.env \
+    --add-host host.docker.internal:host-gateway \
+    ghcr.io/syati/agent-stack zsh
+}