AI Context Extensions: Carry Useful Context Between Chats
An AI context extension should help you choose, review, and transfer the material a new chat needs. Compare capture tools and shared work records by the handoff they support.
Updated 8 min read
An AI context extension helps collect or move the information an assistant needs for a task, such as selected pages, instructions, and a project handoff. Choose one by how well it lets you select the right material, review the result, and deliver it to the next chat. Capturing more information is useful only when the next assistant can identify what matters.
For changing project work, fenbs offers a shared record outside the extension: tasks, Decisions and rules, and Where we left off. A browser extension may help gather reference material, while that record explains what you are actually trying to finish. You can use both without making each saved page a standing instruction.
What needs to cross from one chat to the next?
A useful transfer answers five questions: what is the goal, what is settled, what constraints apply, what has been checked, and what should happen next? Start there before collecting a transcript. Many messages explain how an answer was reached without being necessary for the next action.
Say you are preparing a website accessibility review. The next session needs the chosen pages, the agreed scope, the checks already performed, and the unresolved issues. It probably does not need every draft explanation from the first session. It does need to know whether a claim came from a source, an assistant inference, or your approval.
Keep exact requirements in their original wording when accuracy depends on wording. Summaries are useful for orientation, but a summary of an instruction can accidentally broaden it. The same applies to a source excerpt: preserve the qualification beside the conclusion rather than moving it into a separate note that may not travel.
- Goal: the outcome this session should help produce.
- Current work: completed steps, unresolved questions, and the next action.
- Authority: rules and decisions approved by people, with their scope.
- Evidence: links or selected excerpts needed to check important claims.
- Exclusions: information that should stay in its original system or should not reach this assistant.
The context window guide explains how much material an assistant can work with at once. For an extension trial, focus on whether the material crossing the boundary is the material you intended.
Which capture and transfer approach should you choose?
An extension can collect pages, assemble a text packet, or insert saved material into an AI interface. Those are separate capabilities. A product that performs the first well may leave you responsible for the other two. Test the complete trip from a source page to a new chat, not just the save button.
| Option | Best fit | Important boundary |
|---|---|---|
| Obsidian Web Clipper | Selecting web references for a note collection you maintain. | Saving a source does not automatically supply it to every AI app. |
| A context-transfer browser helper | Moving a reviewed packet into the AI websites you use. | Verify its supported sites, insertion behavior, and exported format yourself. |
| A manually maintained handoff file | Small projects that need explicit review and easy copying. | You must update the file and provide it when the next session starts. |
| fenbs | Keeping current project decisions, tasks, and progress available to supported connected assistants. | It does not collect browser tabs or import chat transcripts. |
Obsidian Web Clipper (opens in a new tab) documents selected web capture to a local vault. That can be useful when the missing context is reference material. It should not be mistaken for an automatic transfer of your whole project into a new AI conversation.
Choose a manually maintained file if copy and paste is already reliable and you mainly need clearer content. Choose a transfer helper if repeated assembly is the costly part. Choose a shared record when several sessions need the same changing project truth. The strongest option is the smallest setup that covers your actual handoff.
Can you review the packet before it is sent?
A review screen should make omissions and unwanted inclusions easy to see. Ask whether you can remove a page, shorten an excerpt, change the order, and distinguish an instruction from source material. If the extension silently inserts text, inspect the first few transfers in a test chat before relying on it.
Put the current goal and binding instructions near the start. Follow them with the minimum reference material needed for the task. A long packet in which the key instruction appears between copied menus and outdated drafts may be complete in a storage sense but poor as a working brief.
For repeatable source capture, Obsidian documents clipper templates (opens in a new tab) that organize captured page data. A template is useful when it consistently preserves the fields you check, such as title and source location. It still needs review when a site changes or the selected page is unusual.
Use an invented source with a visible warning, a date, a conclusion, and an exception. Capture it and inspect which parts survive. If the exception disappears, shorten the capture deliberately or adjust the method before using the extension for research that affects real decisions.
The problem of stale material is covered in AI context rot. For this selection decision, favor a tool that makes the current packet visible enough to spot an old draft before it reaches another assistant.
Transfer the project state without rebuilding the story
Save the current tasks, agreed decisions, and Where we left off in fenbs. Connect another supported AI app and ask it to read that same project record before continuing. Keep selected source pages in your research tool and include the references needed for the next action.
Create a free accountFree for one person · No credit card · Works with Claude, ChatGPT, Cursor and more
How do permissions and project boundaries affect the choice?
The extension may be able to read more than the text you intend to transfer. Review its requested site access and the product explanation of collection. A tool used for public research does not automatically belong in the browser profile where you handle private client work.
Chrome documents host permissions and optional permissions (opens in a new tab). Use those distinctions to ask whether the extension needs ongoing access to several websites or can work after you select a page. Permission to access a site and permission from your organization to share its contents are separate questions.
Make project boundaries visible in the transferred material. Put the project name and scope at the start, and avoid including unrelated open tabs simply because the extension offers to gather them. Similar client names, old folder names, and reused templates are easy ways for an otherwise helpful capture step to collect the wrong material.
Check the destination too. The packet might be pasted into a personal conversation, a managed workspace, or an app connected to other services. A browser transfer does not by itself preserve the original document’s audience. Only send material you intend that destination and its users to receive.
For shared work, fenbs shows how project context and member roles fit together. That is useful when continuity depends on several people reading the same work record, rather than one person carrying a private packet around.
What does a useful transfer test look like?
Create a small fictional project and write a reference answer before testing the extension. Include a decision, a rejected proposal, an unresolved question, and a completed check. Ask the destination assistant to explain the next action and the evidence behind it. This reveals more than asking it to repeat a project name.
- Collect two source excerpts and one current project note. Review the outgoing packet and remove unrelated material.
- Open a fresh conversation. Supply the packet using the method you expect to use for real work.
- Ask for the current goal, binding rule, open question, and next step. Check every answer against your reference note.
- Change one decision and repeat the transfer. Verify that the old decision is marked as replaced or excluded.
- Try your second AI app if switching apps is part of the requirement. Check what needs manual copying and what actually follows you.
Record the effort as well as the answer quality. An extension may save a minute collecting information but create several minutes of cleanup. Another may be less automatic while producing a clear, inspectable packet. The better choice depends on your actual mix of repeated setup and review.
Keep a fallback copy that someone can open without the extension. If a website changes its interface or the helper temporarily stops working, a readable handoff should still let the work continue. Avoid making the only copy of an agreed decision depend on a browser button.
How to do this with fenbs
Use fenbs for the project state you want supported assistants to share. The aim is a useful starting record, not a copy of every source and conversation. Begin with one project where you regularly spend time explaining what happened in the previous session.
- Create a free account, free for one person with no credit card, and add your project.
- Add its current tasks, the decisions a person has approved, and the rules that should continue to apply.
- Connect the AI apps you use through the supported setup guides in Integrations. The connection uses MCP, a standard way for an AI app to use an outside tool, and browser sign-in.
- Ask your assistant to read the project context before acting. Provide selected reference material separately when it needs that material for the task.
- Before stopping, save what changed, what was checked, what remains, and where the next session should begin. Test the handoff from a new conversation.
fenbs is not the right fit when your main goal is selecting text from browser tabs or assembling a large research export. It does not import ChatGPT chats or capture pages. Keep that collection step in a tool designed for it, and use fenbs when the resulting work needs a shared continuing record.
Start with what is current
Ask your connected assistant to read the project’s Rules, Where we left off, and work in progress from fenbs. Update the record as tasks change and people make decisions. The next session can start from saved work instead of a packet assembled from whichever tabs happen to be open.
Create a free accountFree for one person · No credit card · Works with Claude, ChatGPT, Cursor and more
What should decide the final choice?
Pick the approach that leaves you able to answer three questions: what was sent, why was it included, and where is the current version? A context extension earns its place by making those answers easier. A long feature list is less useful than a transfer you can inspect and repeat.
Use the memory tools hub to compare the surrounding options once you know the missing part of your workflow. Keep capture, project decisions, and session handoff understandable. When each has a clear home, switching chats becomes a deliberate restart from current work.