The end of the prompt: how to get the best answers out of AI

The best answer starts before the question. How to organize context, sources, skills and tools to work better with AI agents.

· 5 min read
Guilherme Silveira


The best answer from AI starts before the question. It starts with the information you organized, the references you left available and the rules you set for the work. Whoever puts everything into the sentence typed in the chat is leaving an important part of the operation out.

The end of the prompt, here, is the end of depending on one isolated request to explain everything, every time. Instructions still exist. It's just that they can be spread across the project, the documents, the reusable procedures and the tools the agent can consult.

The leap is not finding a better sentence. It's preparing an environment where a simple request can trigger well-guided work.

01

The request stops carrying the whole company

The starting point for this reflection was a video by Chiara Costa about changing the way you use Claude. The video was used from translated text content, without audiovisual checking or literal quotes. I consulted these sources on 8 Nov 2026. The idea that matters here is explaining the goal, providing context and showing useful references, instead of trying to control every move the model makes.

My proposal is to take that into how the work is organized. If every conversation starts with the same explanation about the company, the audience and the format of the deliverable, that information deserves a permanent place. If every proposal requires the same check, that procedure deserves to be reused.

It's not about storing everything anywhere. It's about separating what stays, what changes, how the work should be done and what access it requires. Those are different functions.

02

Stable context goes in the project. Price stays in the current source.

Imagine a services company preparing sales proposals. This is a hypothetical example.

The audience served, the brand's tone, the services offered and who approves exceptions form a relatively stable base. In products that offer project instructions, that base can be recorded to guide new conversations, without depending on someone copying it every time.

The Claude Code documentation, for example, describes persistent instruction files to give the project context. That documentation describes specific product features and standards, not an independent performance guarantee. That is not a universal setting of every AI. The feature and how it works depend on the product.

The current price, that client's need and the requested deadline, on the other hand, are variable data. They need to come from the current source, not from a memory from three months ago. A memory can help preserve a format preference; it should not become the authority on the price list.

Files and documents come in as verifiable references: sales policy, service price list, contract, approved examples. Identify the valid version and ask for the deliverable to state the sources used. When there is search over these materials, the agent can retrieve the passage it needs, instead of receiving every file in every conversation.

This selection of information is a central part of Anthropic's guidance on context for agents. More information is not automatically better. What matters is having the right information available at the right time.

And documents get old. Without someone responsible for updating the sources, you're just organizing better access to a wrong rule.

03

Skills: the procedure leaves copy and paste behind

A skill is an organized package of instructions and resources for a task. It can bring together a script, examples, references and a document template. In tools compatible with the Agent Skills standard, the details are loaded as the task calls for them. There's no need to put every manual into the conversation from the start.

In the proposal example, a skill can guide checking the client's request, applying the sales policy, assembling the document and flagging exceptions. An approved example shows what is expected from the deliverable. A checklist reminds you of what needs to be checked.

The difference is simple: stable context explains the company; the skill explains how to carry out a recurring task.

This does not automatically train the model or create a universal memory. Someone has to write, review and maintain the procedure. And the skill has to be tested: having been triggered does not prove it worked.

04

Tools give access. They don't give carte blanche.

A tool or connector lets you look up information or run operations in another system. In the proposal, it can be used to fetch the record from the customer management system, the CRM, read a price spreadsheet or generate the final file.

The Claude Code documentation on integrations via MCP describes this kind of access and recommends care with the connected servers and their permissions. MCP is an integration standard, not the name of every available connector.

Looking up the CRM does not authorize offering a discount. Generating a proposal does not authorize sending it to the client. To start, prefer read-only access when that is enough. Important limits also need permission controls, not just a sentence asking for care.

05

So what do you ask the agent?

With that base in place, the request can trigger the work:

Prepare a draft proposal for this client. Check the client record and the current price list, apply the sales proposal skill and follow the project instructions. Show the sources and versions used, check the totals and highlight exceptions that depend on approval. If information that changes the scope or the price is missing, ask. Do not change the CRM, do not grant discounts and do not send anything to the client.

This request assumes the resources exist and are accessible. Without that, the agent should point out what is missing, not pretend to look something up.

The quality criterion also becomes concrete: did it use the correct price? Did it respect the scope? Did it cite the policy? Did it separate open items? A person checks the proposal before it is sent. Verification should match the risk, even when the agent does its own review.

06

Where to start in your company

Pick a recurring, low-risk task. Separate the stable instructions, point to the up-to-date sources and turn the repeated procedure into a skill, if the tool supports it. Connect only what is necessary, with the least access possible.

Test common cases and cases with exceptions. Compare the deliverables with and without this organization. Fix the source, the instruction or the procedure that caused the error, instead of making the prompt longer by reflex.

That is the change worth pursuing: less dependence on one brilliant command, more usable context. The question is still important. It just doesn't have to work alone anymore.

This article was produced with the support of artificial intelligence.

Sources

Chiara Costa. https://www.youtube.com/watch?v=OhCXEo3lE4A

Anthropic, 29 Sep 2025. https://www.anthropic.com/research/effective-context-engineering-for-ai-agents

Agent Skills. https://agentskills.io/specification

Claude Code. https://code.claude.com/docs/en/memory

Claude Code. https://code.claude.com/docs/en/mcp

Claude Code. https://code.claude.com/docs/en/skills