Skip to main content
Glama

record_and_extract

Record a screen target for a fixed duration and automatically extract frames into a separate directory in one call.

Instructions

Record a target for a fixed duration and extract frames in one call.

Use this when the recording length is known up front and no interactive
manual stop is needed. duration_seconds is required.

output_dir receives the captured recording file (recording.mov for macOS and
iOS Simulator, recording.mp4 for Android) and a frames/ directory containing
extracted images.

options are forwarded to start_recording. extract_options are forwarded to
extract_frames, including mode, scene_threshold, fps, max_frames,
inline_images, and rotate_degrees.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
targetYesSame vocabulary as start_recording.target.
duration_secondsYesRequired. This tool has no manual-stop path; use start_recording + stop_recording for unknown-duration captures.
output_dirYesAbsolute directory. Receives recording.mov (macOS/iOS) or recording.mp4 (Android) plus a frames/ subdir.
optionsNoForwarded to start_recording.options.
extract_optionsNoForwarded to extract_frames. Accepts mode, scene_threshold, fps, max_frames, inline_images, rotate_degrees.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior3/5

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

No annotations provided, so description carries the full burden. It describes output files and forwarding of options, but lacks details on blocking behavior, permissions needed, or whether it kills existing recordings. More behavioral details would improve score.

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?

Description is concise with 6 sentences, front-loaded with purpose, followed by usage and output details. No wasted words, well structured.

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

Completeness4/5

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

Given the tool's complexity (combines recording and extraction) and that output schema exists (though not shown), description covers key aspects. Lacks error handling or timeout details, but is largely complete for typical use.

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 coverage is 100% (all parameters have descriptions in schema). Description adds context like output directory structure and forwarded options, but does not add substantial new meaning beyond the schema. Adequate but not exceptional.

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?

Description clearly states the tool records a target for a fixed duration and extracts frames in one call. It distinguishes from siblings like start_recording, stop_recording, and extract_frames by combining both actions.

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

Usage Guidelines4/5

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

Explicitly says to use when recording length is known upfront and no interactive stop needed, and mentions start_recording + stop_recording for unknown durations. Could be slightly improved by explicitly stating not to use when recording length is unknown.

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

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/Corvus400/video-capture-mcp'

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