Add Exoclaw scheduled task harness

README.md

@@ -107,12 +107,49 @@ and recursive-language-model harness experiments.
 For the coding-agent setup commands, see
 [docs/coding-agent-harnesses.md](./docs/coding-agent-harnesses.md).
 
+## Exoclaw Long-Running Harness
+
+Exoclaw is the TypeScript harness example for long-running local agents. It uses
+the same TypeScript runner path as the minimal harness, but opts into scheduled
+task tools and scheduler-aware sandbox policy.
+
+Start a local Exoclaw REPL with:
+
+```bash
+scripts/exoclaw-repl
+```
+
+Scheduled tasks can be created, listed, cancelled, and deleted by the agent. The
+corresponding CLI commands are under:
+
+```bash
+./target/debug/exo --harness exoclaw schedule --help
+```
+
+By default, Exoclaw uses an agent-scoped sandbox for shell commands and scheduled
+tasks, so setup done through the REPL is shared by future tasks and conversations
+for that agent while the warm sandbox is alive, including across normal REPL
+restarts. Conversation-scoped and task-scoped sandboxes are available for
+isolation. The sandbox filesystem is not yet durable across warm container
+cleanup; use a prepared image or task `setupCommand` for dependencies that must
+survive host/container cleanup.
+
+To make a conversation use its own sandbox for shell commands instead of the
+agent sandbox, create or update it with `--sandbox-scope conversation`:
+
+```bash
+./target/debug/exo --harness exoclaw conversation create exoclaw-agent "Isolated Dev" --sandbox-scope conversation
+scripts/exoclaw-repl --conversation isolated-dev --sandbox-scope conversation
+```
+
 ## Repository Layout
 
 - `crates`: Rust workspace for the CLI, exoharness substrate, and executors.
 - `typescript`: TypeScript harness runtime, model-runtime helpers, and
   adapter-specific support code.
 - `examples/typescript`: runnable TypeScript harness examples.
+- `examples/exoclaw`: long-running TypeScript harness example with scheduled
+  task support.
 - `containers`: sandbox images used by the coding-agent harness examples.
 - `spec`: core architecture and terminology.
 - `docs`: design notes for in-progress directions.

crates/cli/Cargo.toml

@@ -15,6 +15,7 @@ clap.workspace = true
 executor = { path = "../executor" }
 lingua.workspace = true
 rustyline = "15.0.0"
+serde.workspace = true
 serde_json.workspace = true
 tokio.workspace = true
 tokio-stream.workspace = true