diff --git a/arc/workflows/playwright-demo/browse-prompt.md b/arc/workflows/playwright-demo/browse-prompt.md
new file mode 100644
index 000000000..4f63f1311
--- /dev/null
+++ b/arc/workflows/playwright-demo/browse-prompt.md
@@ -0,0 +1,14 @@
+You have Playwright MCP tools available. Do the following:
+
+1. First, call the `browser_install` tool to ensure the browser is installed.
+2. Create the screenshots directory: `mkdir -p /home/daytona/workspace/screenshots`
+3. Use `browser_navigate` to go to https://news.ycombinator.com
+4. Use `browser_snapshot` to capture the page content
+5. Use `browser_take_screenshot` to save a screenshot to `/home/daytona/workspace/screenshots/01-hn-front-page.png`
+6. Click on the first story link
+7. Use `browser_take_screenshot` to save a screenshot to `/home/daytona/workspace/screenshots/02-first-story.png`
+8. Use `browser_navigate_back` to go back to the front page
+9. Click on the "new" link in the nav bar
+10. Use `browser_take_screenshot` to save a screenshot to `/home/daytona/workspace/screenshots/03-newest.png`
+
+After capturing screenshots, write a brief summary of what you found on Hacker News today.
diff --git a/arc/workflows/playwright-demo/workflow.dot b/arc/workflows/playwright-demo/workflow.dot
new file mode 100644
index 000000000..0908162fa
--- /dev/null
+++ b/arc/workflows/playwright-demo/workflow.dot
@@ -0,0 +1,13 @@
+digraph PlaywrightDemo {
+    graph [goal="Use Playwright MCP to browse Hacker News and take screenshots", model_stylesheet="* { llm_model: claude-sonnet-4-6; llm_provider: anthropic }"]
+    rankdir=LR
+
+    start [shape=Mdiamond, label="Start"]
+    exit  [shape=Msquare, label="Exit"]
+
+    install_browser [label="Install Browser", shape=parallelogram, script="npx playwright install --with-deps chromium 2>&1 || true"]
+
+    browse [label="Browse Hacker News", prompt="@browse-prompt.md"]
+
+    start -> install_browser -> browse -> exit
+}
diff --git a/arc/workflows/playwright-demo/workflow.toml b/arc/workflows/playwright-demo/workflow.toml
new file mode 100644
index 000000000..e78ff8309
--- /dev/null
+++ b/arc/workflows/playwright-demo/workflow.toml
@@ -0,0 +1,28 @@
+version = 1
+goal = "Browse Hacker News with Playwright MCP and capture screenshots"
+graph = "workflow.dot"
+
+[llm]
+model = "claude-sonnet-4-6"
+
+[sandbox]
+provider = "daytona"
+
+[sandbox.daytona]
+auto_stop_interval = 30
+
+[sandbox.daytona.labels]
+project = "playwright-demo"
+
+[sandbox.daytona.snapshot]
+name = "daytona-medium"
+
+[assets]
+include = ["screenshots/**"]
+
+[mcp_servers.playwright]
+type = "sandbox"
+command = ["npx", "@playwright/mcp@latest", "--port", "3100", "--headless", "--browser", "chromium"]
+port = 3100
+startup_timeout_secs = 60
+tool_timeout_secs = 120
diff --git a/lib/crates/arc-api/src/demo/mod.rs b/lib/crates/arc-api/src/demo/mod.rs
index a682e1c7e..b96aebc92 100644
--- a/lib/crates/arc-api/src/demo/mod.rs
+++ b/lib/crates/arc-api/src/demo/mod.rs
@@ -1295,6 +1295,7 @@ mod runs {
             checkpoint: Default::default(),
             pull_request: None,
             assets: None,
+            mcp_servers: Default::default(),
         })
         .unwrap()
     }
@@ -1447,6 +1448,7 @@ mod workflows {
                     checkpoint: Default::default(),
                     pull_request: None,
                     assets: None,
+                    mcp_servers: Default::default(),
                 }),
                 graph: r#"digraph fix_build {
     graph [
@@ -1516,6 +1518,7 @@ mod workflows {
                     checkpoint: Default::default(),
                     pull_request: None,
                     assets: None,
+                    mcp_servers: Default::default(),
                 }),
                 graph: r#"digraph implement {
     graph [
@@ -1597,6 +1600,7 @@ mod workflows {
                     checkpoint: Default::default(),
                     pull_request: None,
                     assets: None,
+                    mcp_servers: Default::default(),
                 }),
                 graph: r#"digraph sync {
     graph [
@@ -1667,6 +1671,7 @@ mod workflows {
                     checkpoint: Default::default(),
                     pull_request: None,
                     assets: None,
+                    mcp_servers: Default::default(),
                 }),
                 graph: r#"digraph expand {
     graph [
diff --git a/lib/crates/arc-workflows/Cargo.toml b/lib/crates/arc-workflows/Cargo.toml
index d3daae560..614f6a571 100644
--- a/lib/crates/arc-workflows/Cargo.toml
+++ b/lib/crates/arc-workflows/Cargo.toml
@@ -22,6 +22,7 @@ anyhow.workspace = true
 dotenvy.workspace = true
 arc-agent = { path = "../arc-agent" }
 arc-exe = { path = "../arc-exe", optional = true }
+arc-mcp = { path = "../arc-mcp" }
 arc-github = { path = "../arc-github" }
 arc-util = { path = "../arc-util" }
 arc-git-storage = { path = "../arc-git-storage" }
diff --git a/lib/crates/arc-workflows/src/cli/backend.rs b/lib/crates/arc-workflows/src/cli/backend.rs
index 8ae83871f..e6bf8b6ff 100644
--- a/lib/crates/arc-workflows/src/cli/backend.rs
+++ b/lib/crates/arc-workflows/src/cli/backend.rs
@@ -109,6 +109,7 @@ pub struct AgentApiBackend {
     fallback_chain: Vec<FallbackTarget>,
     sessions: Mutex<HashMap<String, Session>>,
     env: HashMap<String, String>,
+    mcp_servers: Vec<arc_mcp::config::McpServerConfig>,
 }
 
 impl AgentApiBackend {
@@ -120,6 +121,7 @@ impl AgentApiBackend {
             fallback_chain,
             sessions: Mutex::new(HashMap::new()),
             env: HashMap::new(),
+            mcp_servers: Vec::new(),
         }
     }
 
@@ -129,6 +131,12 @@ impl AgentApiBackend {
         self
     }
 
+    #[must_use]
+    pub fn with_mcp_servers(mut self, servers: Vec<arc_mcp::config::McpServerConfig>) -> Self {
+        self.mcp_servers = servers;
+        self
+    }
+
     async fn create_session(
         &self,
         node: &Node,
@@ -142,6 +150,7 @@ impl AgentApiBackend {
             sandbox,
             &self.env,
             tool_hooks,
+            self.mcp_servers.clone(),
         )
         .await
     }
@@ -153,6 +162,7 @@ impl AgentApiBackend {
         sandbox: &Arc<dyn Sandbox>,
         env: &HashMap<String, String>,
         tool_hooks: Option<Arc<dyn arc_agent::ToolHookCallback>>,
+        mcp_servers: Vec<arc_mcp::config::McpServerConfig>,
     ) -> Result<Session, ArcError> {
         let client = Client::from_env()
             .await
@@ -164,6 +174,7 @@ impl AgentApiBackend {
             max_tokens: node.max_tokens(),
             reasoning_effort: Some(node.reasoning_effort().to_string()),
             tool_hooks,
+            mcp_servers,
             ..SessionConfig::default()
         };
 
@@ -481,6 +492,7 @@ impl CodergenBackend for AgentApiBackend {
                         sandbox,
                         &self.env,
                         tool_hooks.clone(),
+                        self.mcp_servers.clone(),
                     )
                     .await
                     {
diff --git a/lib/crates/arc-workflows/src/cli/run.rs b/lib/crates/arc-workflows/src/cli/run.rs
index fc4d4c25a..6b731ff92 100644
--- a/lib/crates/arc-workflows/src/cli/run.rs
+++ b/lib/crates/arc-workflows/src/cli/run.rs
@@ -893,16 +893,28 @@ pub async fn run_command(
         .and_then(|c| c.sandbox.as_ref())
         .and_then(|s| s.env.clone())
         .unwrap_or_default();
+    let mcp_servers: Vec<arc_mcp::config::McpServerConfig> = run_cfg
+        .as_ref()
+        .map(|c| {
+            c.mcp_servers
+                .clone()
+                .into_iter()
+                .map(|(name, entry)| entry.into_config(name))
+                .collect()
+        })
+        .unwrap_or_default();
     let registry = default_registry(interviewer.clone(), {
         let sandbox_env = sandbox_env.clone();
         let model = model.clone();
+        let mcp_servers = mcp_servers.clone();
         move || {
             if dry_run_mode {
                 None
             } else {
                 let api =
                     AgentApiBackend::new(model.clone(), provider_enum, fallback_chain.clone())
-                        .with_env(sandbox_env.clone());
+                        .with_env(sandbox_env.clone())
+                        .with_mcp_servers(mcp_servers.clone());
                 let cli = AgentCliBackend::new(model.clone(), provider_enum)
                     .with_env(sandbox_env.clone());
                 Some(Box::new(BackendRouter::new(Box::new(api), cli)))
@@ -2119,6 +2131,7 @@ mod tests {
             checkpoint: Default::default(),
             pull_request: None,
             assets: None,
+            mcp_servers: Default::default(),
         };
         let (model, provider) = resolve_model_provider(
             Some("gpt-5.2"),
@@ -2162,6 +2175,7 @@ mod tests {
             checkpoint: Default::default(),
             pull_request: None,
             assets: None,
+            mcp_servers: Default::default(),
         };
         let (model, provider) = resolve_model_provider(None, None, Some(&cfg), &defaults, &graph);
         assert_eq!(model, "toml-model");
@@ -2240,6 +2254,7 @@ mod tests {
             checkpoint: Default::default(),
             pull_request: None,
             assets: None,
+            mcp_servers: Default::default(),
         };
         let (model, provider) = resolve_model_provider(None, None, Some(&cfg), &defaults, &graph);
         assert_eq!(model, "toml-model");
@@ -2268,6 +2283,7 @@ mod tests {
             checkpoint: Default::default(),
             pull_request: None,
             assets: None,
+            mcp_servers: Default::default(),
         };
         let defaults = RunDefaults::default();
         assert!(resolve_preserve_sandbox(true, Some(&cfg), &defaults));
@@ -2295,6 +2311,7 @@ mod tests {
             checkpoint: Default::default(),
             pull_request: None,
             assets: None,
+            mcp_servers: Default::default(),
         };
         let defaults = RunDefaults {
             sandbox: Some(run_config::SandboxConfig {
@@ -2365,6 +2382,7 @@ mod tests {
             checkpoint: Default::default(),
             pull_request: None,
             assets: None,
+            mcp_servers: Default::default(),
         };
         let defaults = RunDefaults::default();
         assert_eq!(
@@ -2418,6 +2436,7 @@ mod tests {
             checkpoint: Default::default(),
             pull_request: None,
             assets: None,
+            mcp_servers: Default::default(),
         };
         let defaults = RunDefaults {
             sandbox: Some(run_config::SandboxConfig {
diff --git a/lib/crates/arc-workflows/src/cli/run_config.rs b/lib/crates/arc-workflows/src/cli/run_config.rs
index 756b9e5a7..808762e7e 100644
--- a/lib/crates/arc-workflows/src/cli/run_config.rs
+++ b/lib/crates/arc-workflows/src/cli/run_config.rs
@@ -6,6 +6,8 @@ use serde::{Deserialize, Serialize};
 
 use tracing::debug;
 
+use arc_mcp::config::{McpServerConfig, McpTransport};
+
 use crate::daytona_sandbox::{DaytonaConfig, DockerfileSource};
 
 const SUPPORTED_VERSION: u32 = 1;
@@ -51,6 +53,29 @@ pub struct WorkflowRunConfig {
     pub checkpoint: CheckpointConfig,
     pub pull_request: Option<PullRequestConfig>,
     pub assets: Option<AssetsConfig>,
+    #[serde(default)]
+    pub mcp_servers: HashMap<String, McpServerEntry>,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub struct McpServerEntry {
+    #[serde(flatten)]
+    pub transport: McpTransport,
+    #[serde(default = "arc_mcp::config::default_startup_timeout_secs")]
+    pub startup_timeout_secs: u64,
+    #[serde(default = "arc_mcp::config::default_tool_timeout_secs")]
+    pub tool_timeout_secs: u64,
+}
+
+impl McpServerEntry {
+    pub fn into_config(self, name: String) -> McpServerConfig {
+        McpServerConfig {
+            name,
+            transport: self.transport,
+            startup_timeout_secs: self.startup_timeout_secs,
+            tool_timeout_secs: self.tool_timeout_secs,
+        }
+    }
 }
 
 #[derive(Clone, Debug, Deserialize, PartialEq, Serialize)]