PicassoWeb

Extract website animations

extract_animations

Read-onlyIdempotent

Use this when you need static motion definitions and replication-ready CSS. Avoid it when you need to observe JS-driven movement over time; use capture_motion.

Instructions

Use this when you need static motion definitions and replication-ready CSS. Avoid it when you need to observe JS-driven movement over time; use capture_motion. Extract declared keyframes, transitions, timings, scroll effects, WAAPI records, and generated CSS. Cost: standard. Session: uses one browser page for one URL. Does not write files. Possible follow-ups if evidence is still missing: capture_motion, compare_replica.

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 scan for motion styles.
`viewportWidth`	No	Browser viewport width in CSS pixels.
`viewportHeight`	No	Browser viewport height in CSS pixels.
`interactionStates`	No	Reveal transition target values for these forced pseudo states.
`maxWaapiAnimations`	No	Maximum live Web Animations records to return.
`allowPrivateNetwork`	No	Allow localhost and private-network URLs. Enable only for trusted sites.
`includeGeneratedCss`	No	Include paste-ready CSS for declared keyframes, animations, and transitions.
`includeScrollEffects`	No	Scroll the page and report elements whose motion styles change on reveal.

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": "extract_animations",
+      "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: +{
+  "animatedElements": {
+    "items": {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    "type": "array"
+  },
+  "generatedCss": {
+    "type": "string"
+  },
+  "keyframes": {
+    "items": {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    "type": "array"
+  },
+  "libraries": {
+    "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"
+  },
+  "scrollReveals": {
+    "items": {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    "type": "array"
+  },
+  "stateTransitions": {
+    "items": {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    "type": "array"
+  },
+  "waapiAnimations": {
+    "items": {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    "type": "array"
+  },
+  "warnings": {
+    "description": "Non-fatal limitations or incomplete evidence from this run.",
+    "items": {
+      "type": "string"
+    },
+    "type": "array"
+  }
+}

addedOutput schema / properties / result / required

Added value: +[
+  "metadata",
+  "keyframes",
+  "animatedElements",
+  "scrollReveals",
+  "libraries",
+  "warnings"
+]

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

changedOutput schema / required

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

Changed3 schema fields changedv0.10.0Aug 21, 2026

addedInput schema / properties / includeGeneratedCss

Added value: +{
+  "default": true,
+  "description": "Include paste-ready CSS for declared keyframes, animations, and transitions.",
+  "type": "boolean"
+}

addedInput schema / properties / interactionStates

Added value: +{
+  "default": [],
+  "description": "Reveal transition target values for these forced pseudo states.",
+  "items": {
+    "enum": [
+      "hover",
+      "focus"
+    ],
+    "type": "string"
+  },
+  "maxItems": 2,
+  "type": "array"
+}

addedInput schema / properties / maxWaapiAnimations

Added value: +{
+  "default": 60,
+  "description": "Maximum live Web Animations records to return.",
+  "maximum": 200,
+  "minimum": 1,
+  "type": "integer"
+}

First observedv0.8.0Aug 3, 2026

TDQS

A4.7/5.0

Behavior5/5

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

Annotations already mark the tool as read-only, idempotent, and non-destructive, and the description adds useful operational context: standard cost, one browser page per URL, no file writes, and a limitation note about missing evidence. This goes beyond the structured metadata and matches the annotations.

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 concise and well-structured: usage guidance is front-loaded, followed by extraction scope, then operational constraints and follow-up tools. Every sentence earns its place without redundancy.

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?

Despite the tool's 14 parameters, the schema and output schema cover the technical details, and the description covers purpose, exclusions, operational limits, and follow-up paths. An agent has everything needed for correct selection and 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 description is not responsible for documenting individual parameters. It references output categories like generated CSS and WAAPI records that map to includeGeneratedCss and maxWaapiAnimations, but it does not add parameter-level meaning beyond what the schema already provides.

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 opens with a specific verb and resource: extracting static motion definitions and replication-ready CSS. It enumerates concrete artifacts (keyframes, transitions, timings, scroll effects, WAAPI records, generated CSS) and explicitly distinguishes itself from capture_motion, so an agent can disambiguate without reading schemas.

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?

Gives an explicit when-to-use condition, an explicit avoidance condition, and names the correct alternative (capture_motion). It also lists possible follow-up tools if evidence is missing, providing complete routing guidance.

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

Install Server

Other Tools

Latest Blog Posts

Who's Calling? MCP Hosts Are an Identity Blind Spot (And the Spec Knows It)
By Om-Shree-0709 on July 25, 2026.
mcp
Agent Identity
OAuth 2.1
Your AI Chatbot Just Exposed Your CEO's Salary to an Intern
By Om-Shree-0709 on July 2, 2026.
Agent Identity
MCP Security
OAuth Delegation
Why MCP Servers Need Execution Sandboxing (And Why Your Current Stack Isn't Enough)
By Om-Shree-0709 on June 30, 2026.
Agentic Ai
Prompt Injection
WebAssembly

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/blackridder22/PicassoWeb'

If you have feedback or need assistance with the MCP directory API, please join our Discord server