Recommended Free Tools
An AI coding agent’s view of your project depends on the product, the active session, its tools and settings, and where it is running. It may use workspace files, IDE context, tool results, search results, URLs, or connected services—but that does not mean it sees every file or uploads the entire project. Before handing it a task, check both what information can enter its context and what it is permitted to change, run, or send.
What can an AI coding agent see?
There is no universal answer. An agent may read project files directly, use IDE-provided context such as indexed symbols, or receive information through tools, URLs, and connected services. The available sources can differ even between modes of one product. Google’s Gemini Code Assist agent-mode documentation, for example, describes context sources that vary by IDE and settings.
As an Amazon Associate I earn from qualifying purchases.
It is useful to separate four questions that are often conflated:
Free tools Windows power users keep installed
One-click scans. No signup required.
- Context: What files, prompt details, tool results, or other information can inform the response?
- Read access: Which files or locations can the agent inspect when it needs more information?
- Action authority: Can it edit files, run commands, use the network, or invoke connected tools—and does each action require approval?
- Data handling: What information does the product send to its service, and what do the applicable product and organization terms say about handling it?
One answer does not settle the others. A file may be readable without being writable; a tool may return information to the agent without granting it unrestricted access to your machine. Conversely, a narrow-looking prompt does not establish that no other context or tool is available.
#1 Best Overall
- Compatible Model(s): Magicmoon brand filter only for 24 inch -diagonally measured - widescreen monitor - aspect ratio 16:9 - filter size: width: 20 15/16", Height: 11 13/16" (531mm x 298mm)
- Superior Privacy: The computer privacy filter makes the screen appear dark when looking at it from an angle (the angle is about 30 to 60 degree), but bright when looking directly at it. To change the privacy level - simply adjust your monitor’s brightness accordingly
- Eye and Screen Protection: Privacy Filter does not only protect your private life but also protects your eyes by blocking 30% of blue light , blocking the harmful blue light between 380 to 495 nm, it filters out the blue light and relieves eye strain
- Perfect For Open Workspaces: Great for maintaining screen privacy in open work spaces
- Includes Two Options: Option 1 uses clear adhesive strips that securely attach to any computer screen. Option 2 (for computer screens with a raised bezel only) uses slide mount tabs that easily stick to the display frame, allowing you to slide the privacy screen filter on and off as needed
Check the live session before assigning work
- Identify the product and surface. Note whether you are using a terminal CLI, an IDE agent mode, a desktop app, or a cloud task. Check the active version, organization settings, and session configuration rather than relying on a general description of the product.
- Inspect the available context and tools. Look for the open workspace, attached files, IDE context, context drawer, tool list, configured MCP servers, URLs, and app integrations. In Gemini Code Assist, the context drawer shows the context available to the agent in agent mode. Google’s documentation lists different context sources for VS Code and IntelliJ.
- Check read and write boundaries. Find out which paths can be read, which locations can be written, whether commands need approval, and whether network access is allowed. In Codex CLI, use
/permissionsto inspect the active sandbox and writable roots. Claude Code supports read-deny rules for specified files. - Confirm where the agent runs. Establish whether it is operating on your local machine, in a container, or in a provider-managed cloud environment. Check which repositories, credentials, tools, and network routes are available in that environment. A cloud task does not necessarily share your local session’s filesystem.
- Begin with a narrow task, then inspect activity. Review proposed or completed commands, tool activity, and file diffs. Expand access only when the task calls for it. Approval prompts are useful controls, not proof that every possible data exposure has been prevented.
How the checks differ by product
Codex CLI and Codex Cloud
The Codex CLI guide describes inspecting code, making changes, running commands, and using local development tools. It says users can steer tasks, inspect commands and diffs, and use /permissions to choose what Codex may do. The permissions interface shows the active sandbox and writable roots. Defaults can depend on the CLI version and configuration, so check the session you are using instead of assuming a fixed permission profile.
Codex Cloud is a separate runtime: coding tasks run on OpenAI-managed computers in reusable cloud environments. According to OpenAI’s Codex plan and workspace guidance, workspace cloud-access settings determine whether a member can use cloud tasks; creating or editing shared environments requires an additional workspace-management permission. A local CLI session and a cloud task should therefore be checked independently.
Rank #2
![[2 Pack] 24 Inch Computer Privacy Screen Filter for 16:9 Widescreen Monitor](https://m.media-amazon.com/images/I/41SBKw3J4ML._SL160_.jpg)
- 【24 PRIVACY FILTER DIMENSIONS】 Width: 20 15/16" (20.9 inches/532 mm), Height: 11 13/16" (11.8 inches/299 mm) - 16:9 Aspect Ratio. Mamol computer privacy filters are designed to be perfectly compatible with HP, Samsung, Dell, Lenovo, Acer, Asus, LG, ViewSonic and other brands of monitors. Please check the width and height dimensions of your computer screen before ordering. If you have any questions about the dimensions, please contact us.
- 【ENHANCED PRIVACY PROTECTION】Mamol 24 inch computer privacy filter keeps your electronic information confidential, making it excellent for use in high traffic areas. the computer privacy screen 24 inch is designed with advanced microlouver technology to block visibility at around 30 degrees and black out screens completely near 60 degrees.
- 【EYES PROTECTION】 This blackout privacy screen greatly reduces eye strain and minimizes potential hazards to vision. It filters 99.9% of UV rays and suppresses 98% of blue light. As a reversible 24-inch privacy screen filter: The glossy side of the protector provides extra clarity and greater privacy, and the matte side minimizes glare and distracting reflections. Satisfy your different daily uses as needed.
- 【BETTER HD CLARTIY】Mamol 24 inch computer privacy screen Shield adds an extra layer of AR Ultra HD light transmission compared to others. It maintains the high definition of the screen without sacrificing too much screen brightness. It won't reduce the brightness and cause eye fatigue because of the privacy screen installed on the screen.
- 【ANTI SCRATCH & WASHABLE 】Our privacy anti-glare Monitor film has a surface enhancement layer to protect the privacy filter from scratches and fingerprints. It is washable and reusable. Even after prolonged use, you will get a brand new privacy screen for your desktop computer monitor after cleaning. Very Durable!
OpenAI’s description of its own Codex deployment explains sandbox boundaries for write locations, network access, and protected paths. It also describes agent-oriented logging that can include prompts, approval decisions, execution results, MCP use, and network-policy events. These are OpenAI’s descriptions of its platform, not a feature list that applies to other agents. See Running Codex safely at OpenAI.
Claude Code
Claude Code’s official FAQ says: “Source files are read locally, and only the portions needed for the current task are sent to the API to generate a response.” It also says Claude Code does not scan the whole repository. That is a product-specific statement, not a general rule for coding agents.
Rank #3
- 【Privacy Filter Dimensions】- Width: 20 15/16" (532 mm), Height: 11 13/16" (299 mm), Diagonal: 24" (609.6 mm) - SightPro Blackout Privacy Screen Filter is engineered to be compatible with HP, Dell, Samsung, Lenovo, LG, Acer, ASUS, ViewSonic, and other monitor brands. Please verify your computer screen's width and height measurements before ordering. It's not recommended to make your selection based solely on your computer screen's diagonal size.
- 【Two Attachment Options】- Installs in minutes. Option 1 uses clear adhesive strips that securely attach to any computer screen. Option 2 (for computer screens with a raised bezel only) uses slide mount tabs that easily stick to the display frame, allowing you to slide the privacy screen filter on and off as needed.
- 【Superior Privacy and Anti Glare】- Our advanced multi-layered film filter blacks out your computer screen when viewing from the side, while maintaining a crystal clear screen straight-on. It also protects your eyes from harmful glare, UV, and blue light. [Note: It does not block visibility directly behind you, regardless of the distance.]
- 【Perfect for Travel and Open Workspaces】- Our computer screen privacy filter is the ideal solution for healthcare providers, mobile workers, commuters, students, and business travelers. Now you can stay compliant and safeguard sensitive corporate information while working in airplanes, subways, airports and public areas.
- 【Package Contents】- Each package includes one privacy screen shield filter, two sets of clear adhesive strips, two sets of slide mount tabs, and a microfiber cleaning cloth. Buy with confidence – located in the US, Sight Pro specializes in providing best-in-class privacy solutions to individuals, small businesses, corporations, government, and educational institutions. Our privacy screens are Section 889 and TAA compliant.
The FAQ explains that a Read deny rule in .claude/settings.json can block specified files, including when the agent is asked to read them. It also distinguishes permission modes: in acceptEdits, file edits proceed without a prompt, while shell commands, network calls, and actions outside the working directory still require a prompt. The FAQ recommends default mode for tighter control. Check the current settings and documentation for the session in use.
Gemini Code Assist agent mode
Google’s Agent mode overview describes context from IDE files, local system folders, tool responses, and prompt details, with available context depending on IDE and settings. For VS Code, the documented sources include workspace information, built-in tool responses, Google Search responses, URL content, and Markdown context files. For IntelliJ, they include project files, indexed symbols and usages, tool responses, version control, configured MCP servers, and context files.
Rank #4
- 【PRIVACY FILTER DIMENSIONS】- Width: 20 15/16" (532 mm), Height: 11 13/16" (299 mm), Diagonal: 24" (609.6 mm) - Peslv Dark 24 inch Privacy Screen Filter is engineered to be compatible with 24in Dell, HP, Samsung, Lenovo, LG, Acer, ASUS, Toshiba, ViewSonic, Aoc, Sceptre, PHILIPS, ViewSonic and other brands monitors with 16:9 aspect ratio. Please verify your computer screen's width and height measurements before ordering. It is not recommended to select a size based solely on the diagonal.
- 【HIGH-CLASS PRIVACY ABLE】Peslv collected suggestions from more than 2000 computer users and performed 22188 anti-peep angle corrections on the micro-blind optical technology to ensure that any line of sight beyond +-30° facing the screen will be shielded. With a Peslv computer privacy screen 24 inch, Protect the privacy of your computer monitor screen and no longer leak any confidential data.
- 【2 MOUNTING OPTIONS FOR EASY INSTALLATION】The Peslv 24 inch privacy screen for monitor supply 2 installation options, Various installation options, are Compatible with both 24" computer monitors with raised bezels and full-screen 24" computer monitors without raised bezels, and convenient installation allows you to complete the installation in 9 seconds. NOTE: Monitors without raised bezels are only available with mounting option 2.
- 【EXCLUSIVE DOUBLE-SIDED TECHNOLOGY】24-inch monitor privacy filter has a double-sided surface technology developed by Peslv. Matte or Glossy. With the matte surface facing outward, you can experience the advanced AG anti-glare technology from Germany while maintaining a 30-degree privacy angle, softening the strong light outdoors, and making the screen content clearly visible. With the glossy side facing outward, you can get a super anti-peeping effect with a privacy angle of 26 degrees.
- 【PROTECT SCREEN ALSO EYES】Filtering optical materials imported from Japan can reduce 92% of blue light and 98% of UV light, and filter all harmful light emitted from the screen to protect your eyes. The high-transparent and reinforced built-in protective layer not only presents high-definition picture quality but also protects your screen from scratches. Hurry up and place an order, own a privacy screen for a computer monitor 24 inch, and protect your monitor screen and your eyes.
Google says users can see the available context in the agent-mode chat’s context drawer. The agent can also request tools, whose results are returned to the Gemini API as part of its action-and-evaluation cycle. Check both the context shown and the tools enabled for your particular IDE and settings.
How to assess an agent’s access
If you are configuring or comparing agents, evaluate the actual setup—not just the model or product name. These checks help distinguish a useful coding assistant from a session with broader access than the task needs.
Best Value
- [How To Determine The Screen Size]: Before Purchasing Our 24 inch privacy screen for monitor, Please Measure The Size Of Your Computer Screen First. Our computer privacy screen 24 inch Is Suitable For Computer Screens With A Width Of 20.92 Inches (53.13 Cm), A Height Of 11.77 Inches (29.89 Cm), And A Diagonal Length Of 24 Inches (60.96 Cm). (It Is Not Recommended To Choose The Size Only Based On The Diagonal Length.) The ZOEGAA 24-Inch 16:9 computer privacy screen Is Compatible With HP, Samsung, Dell, Lenovo, Acer, ASUS, Viewsonic And Other 24-Inch 16:9 Computer Monitors. Welcome To Your Purchase!
- [Outstanding Privacy Effect]: The Engineer Team Of ZOEGAA Has Collected Suggestions From Over 5,000 Computer Users And Corrected The Anti-Peep Viewing Angle Of The Micro-Blind Optical Technology For 35,462 Times To Ensure That The View Beyond ±30 Degrees Will Be Hidden. People On Your Left And Right Will See A Black Screen.
- [How To Install]: ZOEGAA 24 inch monitor privacy screen Supports 2 Installation Methods. The First One Is The Insert Type Installation, Which Is removable. The Second One Is The Mounting Adhesive Installation, Which Is Non-Detachable. For Detailed Installation Methods, Please Refer To The Pictures Or Videos In The Listing.
- [Better Clarity]: ZOEGAA privacy screen 24 inch monitor. It Has Added An AR High-Definition Light-Transmitting Layer, Which Enables The computer monitor privacy screen To Maintain Its Original Clarity While Achieving The Anti-Spy Effect; It Will Not Cause Eye Fatigue Due To The Installation Of The privacy screen for monitor.
- [Reversible Glossy And Matte Surfaces]: The 24 in privacy screen for monitor Of ZOEGAA Has Two Different Surface Textures - The Glossy Surface Offers Better Anti-Peeping Effect, While The Matte Surface Provides Better Anti-Glare Performance. The Matte Surface Is Suitable For Use In Strong Light Environments. This 24 inch monitor privacy screen Also Has Anti-scratch And Anti-Fingerprint Functions, Ensuring That You Won't Worry About Being Damaged By sharp Objects During Use. It Is Washable And Can Achieve A Brand-New Appearance After Being Washed.
- Context sources: Are workspace files, indexed symbols, attachments, prompt content, tool results, URLs, MCP servers, or app integrations available?
- File boundaries: Which paths are readable? Which are writable? Can you set explicit read-deny rules?
- Execution authority: Can the agent run shell commands or access the network? Which actions require approval, and what sandbox applies to commands it starts?
- Runtime location: Is it local or provider-managed? Which repositories, credentials, tools, and network routes are available there?
- Inspection and audit: Can you inspect context, permissions, commands, diffs, and activity logs?
- Data handling: What does the vendor say is read locally, sent to its service, retained, or handled under your plan and organization’s terms?
Documentation describes product capabilities and stated behavior; it does not by itself verify the configuration of your current session. Interfaces and controls can change, so use the live session and current product documentation as the source for its active boundaries.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
