shellmcp: README and ollmcp config

README.md

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+# shellmcp
+
+An MCP server (stdio, Python stdlib only) with one tool, `run`: a bash command, its exit code
+and its output. Gives any MCP client's model a terminal.
+
+    python3 shellmcp.py [--mode readonly|all] [--cwd DIR] [--timeout 60] [--max-output 8000] [--hide PATH]...
+
+- `--mode readonly` (default): every command runs in bubblewrap. The filesystem is read-only
+  except a private /tmp; no network; no other processes visible; ~/.ssh, ~/.gnupg and each
+  `--hide PATH` look empty. Needs `bwrap`.
+- `--mode all`: the user's full permissions (here: wheel and docker, so effectively root).
+  Use it only with a client that asks before each tool call.
+
+The tool description names the host, user, directory, limits and which modern tools
+(rg, fd, jq, ...) are installed, so the model prefers them.
+
+## Where commands run
+
+Wherever this process runs. The client starts it (stdio), so with `"command": "python3"` the
+commands run on the client's machine. To act on the GPU host from any machine, start it
+over ssh (key login needed):
+
+    "command": "ssh", "args": ["fabian@192.168.2.169", "python3", "/home/fabian/coding/misc/shellmcp/shellmcp.py", "--mode", "readonly"]
+
+## Clients
+
+ollmcp with gemma4 on vLLM (`examples/ollmcp.json` registers `shell` and `shell-rw`):
+
+    ollmcp -p openai -H http://127.0.0.1:8000/v1 -m gemma4 -j examples/ollmcp.json
+
+Claude Code:
+
+    claude mcp add shell -- python3 /home/fabian/coding/misc/shellmcp/shellmcp.py --mode readonly
+
+OpenAI-API apps without MCP (Open WebUI and the like): wrap it as an OpenAPI server with
+`uvx mcpo --port 8001 -- python3 shellmcp.py --mode readonly`.
+
+## Test
+
+    python3 -m unittest -v test_shellmcp

examples/ollmcp.json

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+{
+  "mcpServers": {
+    "shell": {
+      "command": "python3",
+      "args": ["/home/fabian/coding/misc/shellmcp/shellmcp.py", "--mode", "readonly", "--cwd", "/home/fabian", "--max-output", "4000"]
+    },
+    "shell-rw": {
+      "command": "python3",
+      "args": ["/home/fabian/coding/misc/shellmcp/shellmcp.py", "--mode", "all", "--cwd", "/home/fabian", "--max-output", "4000"]
+    }
+  }
+}