PicassoWeb

Analyze website design

analyze_site

Read-onlyIdempotent

Use this when you need a design-system overview of one page without creating a replication folder. Avoid it when you need a complete full-page build package; use create_replication_kit once instead.

Instructions

Use this when you need a design-system overview of one page without creating a replication folder. Avoid it when you need a complete full-page build package; use create_replication_kit once instead. Extract design tokens, typography, CSS variables, primitives, and reusable component families. Cost: standard. Session: uses one browser page for one URL. Does not write files. Possible follow-ups if evidence is still missing: inspect_component, clone_section, extract_responsive.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`url`	Yes	Absolute http:// or https:// URL to analyze.
`timeoutMs`	No	Navigation timeout in milliseconds.
`userAgent`	No	Optional browser user-agent override.
`waitUntil`	No	Page lifecycle event to await before extraction.	domcontentloaded
`autoScroll`	No	Scroll through the page before extraction to trigger lazy-rendered content.
`maxScrolls`	No	Maximum viewport-sized scroll steps when autoScroll is enabled.
`maxElements`	No	Maximum DOM elements to analyze.
`includeHidden`	No	Include elements hidden by CSS or layout.
`viewportWidth`	No	Browser viewport width in CSS pixels.
`viewportHeight`	No	Browser viewport height in CSS pixels.
`allowPrivateNetwork`	No	Allow localhost and private-network URLs. Enable only for trusted sites.
`maxComponentExamples`	No	Example selectors returned for each component type.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`result`	Yes
`guidance`	Yes

Schema Changelog

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

Changed6 schema fields changedv0.10.1Aug 28, 2026

addedOutput schema / properties / guidance

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "cost": {
+      "enum": [
+        "light",
+        "standard",
+        "heavy"
+      ],
+      "type": "string"
+    },
+    "nextTools": {
+      "description": "Candidate follow-ups; do not call them automatically or in parallel.",
+      "items": {
+        "enum": [
+          "analyze_site",
+          "analyze_html",
+          "inspect_component",
+          "capture_screenshot",
+          "extract_assets",
+          "extract_animations",
+          "extract_layout",
+          "clone_section",
+          "capture_interactions",
+          "extract_responsive",
+          "compare_replica",
+          "create_replication_kit",
+          "capture_motion",
+          "crawl_site"
+        ],
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "sessionPolicy": {
+      "enum": [
+        "offline-document",
+        "single-url",
+        "multi-viewport",
+        "dual-page",
+        "site-crawl"
+      ],
+      "type": "string"
+    },
+    "summary": {
+      "minLength": 1,
+      "type": "string"
+    },
+    "tool": {
+      "const": "analyze_site",
+      "type": "string"
+    },
+    "warnings": {
+      "description": "Non-fatal limitations or incomplete evidence from this run.",
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "writesFiles": {
+      "type": "boolean"
+    }
+  },
+  "required": [
+    "tool",
+    "summary",
+    "nextTools",
+    "warnings",
+    "cost",
+    "writesFiles",
+    "sessionPolicy"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / result / additionalProperties
```
Added value: +{}
```

addedOutput schema / properties / result / properties

Added value: +{
+  "colors": {
+    "items": {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    "type": "array"
+  },
+  "components": {
+    "items": {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    "type": "array"
+  },
+  "metadata": {
+    "additionalProperties": {},
+    "properties": {
+      "analyzedAt": {
+        "type": "string"
+      },
+      "finalUrl": {
+        "type": "string"
+      },
+      "requestedUrl": {
+        "type": "string"
+      },
+      "title": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "requestedUrl",
+      "finalUrl",
+      "title",
+      "analyzedAt"
+    ],
+    "type": "object"
+  },
+  "primitives": {
+    "additionalProperties": {},
+    "properties": {},
+    "type": "object"
+  },
+  "tokens": {
+    "items": {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    "type": "array"
+  },
+  "typography": {
+    "additionalProperties": {},
+    "properties": {},
+    "type": "object"
+  },
+  "warnings": {
+    "description": "Non-fatal limitations or incomplete evidence from this run.",
+    "items": {
+      "type": "string"
+    },
+    "type": "array"
+  }
+}

addedOutput schema / properties / result / required

Added value: +[
+  "metadata",
+  "colors",
+  "typography",
+  "components",
+  "tokens",
+  "primitives",
+  "warnings"
+]

addedOutput schema / properties / result / type
```
Added value: +"object"
```

changedOutput schema / required

Previous value: -[
-  "result"
-]New value: +[
+  "result",
+  "guidance"
+]

First observedv0.8.0Aug 3, 2026

TDQS

A4.5/5.0

Behavior4/5

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

Annotations already establish readOnly, idempotent, and non-destructive behavior, and the description adds complementary operational details: it uses one browser page for one URL, has standard cost, does not write files, and can lead to follow-up tools if extraction is incomplete. This goes beyond simply restating annotations by explaining session impact and boundary behavior.

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 compact and front-loaded, putting the main use case and primary alternative in the first two sentences. The remaining sentences add meaningful behavioral, cost, session, and follow-up context without filler or redundant repetition.

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

Completeness5/5

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

Given a rich output schema, fully documented parameters, and annotations covering safety and idempotency, the description supplies the remaining operational and routing context an agent needs. It does not need to explain return values because an output schema exists, and the key exclusion (create_replication_kit) is explicitly addressed.

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?

The input schema has 100% description coverage across all 12 parameters, including defaults, ranges, and enums, so the schema already carries the semantic load. The description's extraction targets are outputs rather than parameter clarifications, but no parameter remains unexplained and the description does not need to compensate for a coverage gap.

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

Purpose5/5

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

The description uses a specific verb and resource ('design-system overview of one page') and lists concrete extraction targets: design tokens, typography, CSS variables, primitives, and reusable component families. It explicitly distinguishes itself from create_replication_kit by stating it does not create a replication folder, so an agent can tell it apart from siblings.

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

Usage Guidelines5/5

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

The description explicitly says when to use it ('design-system overview of one page') and when to avoid it ('complete full-page build package'), naming the alternative create_replication_kit. It also suggests follow-up tools (inspect_component, clone_section, extract_responsive) when evidence is missing, giving the agent clear routing guidance beyond a single binary choice.

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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