Camoufox MCP Server

browse_session_navigate

Navigate an existing browsing session to a specified URL with controls for content extraction, wait conditions, and CAPTCHA handling.

Instructions

Navigate an existing browser session.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`url`	Yes	The URL to navigate to. Must be a fully qualified http or https URL.
`timeout`	No	Optional timeout override for this navigation.
`maxChars`	No	Maximum text or HTML characters to return.
`selector`	No	Optional CSS selector to limit extraction.
`sessionId`	Yes	Session ID returned by browse_session_start.
`outputMode`	No	Response content mode.	text
`waitStrategy`	No	Optional wait strategy override for this navigation.
`captchaPolicy`	No	Challenge handling policy. 'detect' reports signals, 'pause' returns state for human action, 'fail' returns an error, 'attempt' returns enhanced challenge metadata, interactive elements, a bounded screenshot, and a suggested strategy. When CAPTCHA_AUTONOMOUS=true, responses are marked for LLM-assisted handling and include provider-specific challengePlaybook context when known.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`url`	Yes
`html`	No
`text`	No
`title`	No
`status`	No
`message`	No
`maxChars`	Yes
`selector`	No
`expiresAt`	Yes
`sessionId`	Yes
`truncated`	Yes
`outputMode`	Yes
`contentType`	No
`diagnostics`	No
`challengeType`	No
`selectorFound`	No
`captchaIframes`	No
`captchaDetected`	No
`challengeSignals`	No
`challengeHandling`	No
`challengePlaybook`	No
`challengeProvider`	No
`suggestedStrategy`	No
`requiresUserAction`	No
`interactiveElements`	No

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

Changed27 schema fields changedv2.5.0Aug 8, 2026

changedOutput schema / additionalProperties
```
Previous value: -{}New value: +false
```
addedOutput schema / properties / captchaDetected
```
Added value: +{
+  "type": "boolean"
+}
```

addedOutput schema / properties / captchaIframes

Added value: +{
+  "items": {
+    "additionalProperties": false,
+    "properties": {
+      "selector": {
+        "type": "string"
+      },
+      "src": {
+        "type": "string"
+      },
+      "title": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "selector",
+      "src"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}

addedOutput schema / properties / challengeHandling

Added value: +{
+  "enum": [
+    "manual",
+    "llm_assisted"
+  ],
+  "type": "string"
+}

addedOutput schema / properties / challengePlaybook
```
Added value: +{
+  "type": "string"
+}
```

addedOutput schema / properties / challengeProvider

Added value: +{
+  "enum": [
+    "recaptcha",
+    "hcaptcha",
+    "turnstile",
+    "cloudflare",
+    "text_captcha",
+    "generic"
+  ],
+  "type": "string"
+}

addedOutput schema / properties / challengeSignals

Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}

addedOutput schema / properties / challengeType

Added value: +{
+  "const": "captcha_or_bot_check",
+  "type": "string"
+}

addedOutput schema / properties / contentType
```
Added value: +{
+  "type": "string"
+}
```

addedOutput schema / properties / diagnostics

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "console": {
+      "items": {
+        "additionalProperties": false,
+        "properties": {
+          "location": {
+            "additionalProperties": false,
+            "properties": {
+              "columnNumber": {
+                "type": "number"
+              },
+              "lineNumber": {
+                "type": "number"
+              },
+              "url": {
+                "type": "string"
+              }
+            },
+            "type": "object"
+          },
+          "text": {
+            "type": "string"
+          },
+          "type": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "type",
+          "text"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "consoleTruncated": {
+      "type": "boolean"
+    },
+    "network": {
+      "items": {
+        "additionalProperties": false,
+        "properties": {
+          "contentType": {
+            "type": "string"
+          },
+          "errorText": {
+            "type": "string"
+          },
+          "failed": {
+            "type": "boolean"
+          },
+          "method": {
+            "type": "string"
+          },
+          "resourceType": {
+            "type": "string"
+          },
+          "status": {
+            "type": "number"
+          },
+          "url": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "url",
+          "method",
+          "resourceType"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "networkTruncated": {
+      "type": "boolean"
+    }
+  },
+  "type": "object"
+}

addedOutput schema / properties / expiresAt
```
Added value: +{
+  "type": "string"
+}
```
addedOutput schema / properties / html
```
Added value: +{
+  "type": "string"
+}
```

addedOutput schema / properties / interactiveElements

Added value: +{
+  "items": {
+    "additionalProperties": false,
+    "properties": {
+      "frame": {
+        "type": "string"
+      },
+      "label": {
+        "type": "string"
+      },
+      "selector": {
+        "type": "string"
+      },
+      "type": {
+        "enum": [
+          "checkbox",
+          "input",
+          "button",
+          "image"
+        ],
+        "type": "string"
+      }
+    },
+    "required": [
+      "selector",
+      "type"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}

addedOutput schema / properties / maxChars
```
Added value: +{
+  "type": "number"
+}
```
addedOutput schema / properties / message
```
Added value: +{
+  "type": "string"
+}
```

addedOutput schema / properties / outputMode

Added value: +{
+  "enum": [
+    "text",
+    "html",
+    "metadata"
+  ],
+  "type": "string"
+}

addedOutput schema / properties / requiresUserAction
```
Added value: +{
+  "type": "boolean"
+}
```
addedOutput schema / properties / selector
```
Added value: +{
+  "type": "string"
+}
```
addedOutput schema / properties / selectorFound
```
Added value: +{
+  "type": "boolean"
+}
```
addedOutput schema / properties / sessionId
```
Added value: +{
+  "type": "string"
+}
```
addedOutput schema / properties / status
```
Added value: +{
+  "type": "number"
+}
```
addedOutput schema / properties / suggestedStrategy
```
Added value: +{
+  "type": "string"
+}
```
addedOutput schema / properties / text
```
Added value: +{
+  "type": "string"
+}
```
addedOutput schema / properties / title
```
Added value: +{
+  "type": "string"
+}
```
addedOutput schema / properties / truncated
```
Added value: +{
+  "type": "boolean"
+}
```
addedOutput schema / properties / url
```
Added value: +{
+  "type": "string"
+}
```

addedOutput schema / required

Added value: +[
+  "sessionId",
+  "expiresAt",
+  "url",
+  "outputMode",
+  "truncated",
+  "maxChars"
+]

First observedv2.4.0Aug 5, 2026

TDQS

C2.8/5.0

Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The description adds no behavioral context beyond what the annotations already imply. It does not disclose that navigation may trigger side effects (annotations indicate readOnlyHint=false), what happens to the session, or that it may encounter CAPTCHAs. The parameter descriptions cover some behaviors, but the description itself is nearly a restatement of the tool name.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single concise sentence, free of filler or redundancy. It is front-loaded and immediately states the core purpose. While very brief, this dimension rewards conciseness, and the sentence earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite having a rich schema with 8 parameters and an output schema, the tool description is a single sentence that does not provide an overview of the tool's capabilities, such as returning page content, supporting selectors, or handling CAPTCHAs. It fails to place the tool within the session lifecycle or explain its relationship to sibling tools, leaving the agent without sufficient context for correct invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3. The description itself provides no parameter information, but the schema's detailed parameter descriptions fully document the URL, timeout, selector, output mode, and other options. No additional parameter semantics are needed.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action ('Navigate') and the resource ('an existing browser session'), which distinguishes it from session start/close tools. However, it does not explicitly differentiate from the sibling 'browse' tool, which could also imply navigation, so it lacks full sibling differentiation.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It does not mention prerequisites (e.g., an existing session from browse_session_start), exclusions, or any comparison to other browsing tools. The agent receives no usage context beyond the tool's name.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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