diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 0a3e0354..0afef2d9 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -153,7 +153,7 @@ hermes-agent/
 │   ├── skill_tools.py            # Skill search, load, manage
 │   └── environments/             # Terminal execution backends
 │       ├── base.py                   # BaseEnvironment ABC
-│       ├── local.py, docker.py, ssh.py, singularity.py, modal.py
+│       ├── local.py, docker.py, ssh.py, singularity.py, modal.py, daytona.py
 │
 ├── gateway/                  # Messaging gateway
 │   ├── run.py                    # GatewayRunner — platform lifecycle, message routing, cron
diff --git a/README.md b/README.md
index d19f455b..831c40bb 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ Use any model you want — [Nous Portal](https://portal.nousresearch.com), [Open
 <tr><td><b>Grows the longer it runs</b></td><td>Persistent memory across sessions. When it solves a hard problem, it writes a skill document for next time. Skills are searchable, shareable, and compatible with the <a href="https://agentskills.io">agentskills.io</a> open standard.</td></tr>
 <tr><td><b>Scheduled automations</b></td><td>Built-in cron scheduler with delivery to any platform. Daily reports, nightly backups, weekly audits — all in natural language, running unattended.</td></tr>
 <tr><td><b>Delegates and parallelizes</b></td><td>Spawn isolated subagents for parallel workstreams. Write Python scripts that call tools via RPC, collapsing multi-step pipelines into zero-context-cost turns.</td></tr>
-<tr><td><b>Real sandboxing</b></td><td>Five terminal backends — local, Docker, SSH, Singularity, and Modal — with persistent workspaces and container security hardening.</td></tr>
+<tr><td><b>Real sandboxing</b></td><td>Six terminal backends — local, Docker, SSH, Singularity, Modal, and Daytona — with persistent workspaces and container security hardening.</td></tr>
 <tr><td><b>Research-ready</b></td><td>Batch trajectory generation, Atropos RL environments, trajectory compression for training the next generation of tool-calling models.</td></tr>
 </table>
 
diff --git a/website/docs/developer-guide/architecture.md b/website/docs/developer-guide/architecture.md
index 89d255bc..24913caf 100644
--- a/website/docs/developer-guide/architecture.md
+++ b/website/docs/developer-guide/architecture.md
@@ -55,7 +55,7 @@ hermes-agent/
 │   ├── skill_manager_tool.py      # Skill management
 │   └── environments/             # Terminal execution backends
 │       ├── base.py                   # BaseEnvironment ABC
-│       ├── local.py, docker.py, ssh.py, singularity.py, modal.py
+│       ├── local.py, docker.py, ssh.py, singularity.py, modal.py, daytona.py
 │
 ├── gateway/                  # Messaging gateway
 │   ├── run.py                    # GatewayRunner — platform lifecycle, message routing
diff --git a/website/docs/index.md b/website/docs/index.md
index 7a5a3ad3..6849e3ad 100644
--- a/website/docs/index.md
+++ b/website/docs/index.md
@@ -42,7 +42,7 @@ It's not a coding copilot tethered to an IDE or a chatbot wrapper around a singl
 - **Grows the longer it runs** — Persistent memory and self-created skills
 - **Scheduled automations** — Built-in cron with delivery to any platform
 - **Delegates & parallelizes** — Spawn isolated subagents for parallel workstreams
-- **Real sandboxing** — 5 terminal backends: local, Docker, SSH, Singularity, Modal
+- **Real sandboxing** — 6 terminal backends: local, Docker, SSH, Singularity, Modal, Daytona
 - **Full web control** — Search, extract, browse, vision, image generation, TTS
 - **MCP support** — Connect to any MCP server for extended tool capabilities
 - **Research-ready** — Batch processing, trajectory export, RL training integration
diff --git a/website/docs/reference/environment-variables.md b/website/docs/reference/environment-variables.md
index 8da1954e..32133aa4 100644
--- a/website/docs/reference/environment-variables.md
+++ b/website/docs/reference/environment-variables.md
@@ -48,7 +48,7 @@ All variables go in `~/.hermes/.env`. You can also set them with `hermes config
 
 | Variable | Description |
 |----------|-------------|
-| `TERMINAL_ENV` | Backend: `local`, `docker`, `ssh`, `singularity`, `modal` |
+| `TERMINAL_ENV` | Backend: `local`, `docker`, `ssh`, `singularity`, `modal`, `daytona` |
 | `TERMINAL_DOCKER_IMAGE` | Docker image (default: `python:3.11`) |
 | `TERMINAL_DOCKER_VOLUMES` | Additional Docker volume mounts (comma-separated `host:container` pairs) |
 | `TERMINAL_SINGULARITY_IMAGE` | Singularity image or `.sif` path |
diff --git a/website/docs/user-guide/configuration.md b/website/docs/user-guide/configuration.md
index df2e868e..0a30f3aa 100644
--- a/website/docs/user-guide/configuration.md
+++ b/website/docs/user-guide/configuration.md
@@ -108,7 +108,7 @@ Configure which environment the agent uses for terminal commands:
 
 ```yaml
 terminal:
-  backend: local    # or: docker, ssh, singularity, modal
+  backend: local    # or: docker, ssh, singularity, modal, daytona
   cwd: "."          # Working directory ("." = current dir)
   timeout: 180      # Command timeout in seconds
 ```
diff --git a/website/docs/user-guide/features/tools.md b/website/docs/user-guide/features/tools.md
index 5ad1d8d8..1f1036fb 100644
--- a/website/docs/user-guide/features/tools.md
+++ b/website/docs/user-guide/features/tools.md
@@ -62,7 +62,7 @@ The terminal tool can execute commands in different environments:
 ```yaml
 # In ~/.hermes/config.yaml
 terminal:
-  backend: local    # or: docker, ssh, singularity, modal
+  backend: local    # or: docker, ssh, singularity, modal, daytona
   cwd: "."          # Working directory
   timeout: 180      # Command timeout in seconds
 ```