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Amazon CodeWhisperer is now part of Amazon Q Developer: AWS says the transition took effect on April 30, 2024. Its inline suggestions use code and comments available in your IDE, but that does not mean ordinary completion reads and understands every file in your repository. Organization-specific patterns from private repositories require a separate, administrator-configured customization.
How does CodeWhisperer know what I’m trying to write?
As you work in an IDE, inline suggestions can draw on the code and comments around your current task. AWS describes CodeWhisperer as interpreting natural-language comments and analyzing code and comments as a developer writes. The service can suggest code ranging from a small expression to a function or logical block. The current AWS Toolkit for VS Code page directs developers to the Amazon Q Developer IDE extension for inline suggestions and security scans: AWS Toolkit for VS Code: Amazon Q.
Think of this as contextual completion, not a deterministic lookup or proof that the model has mapped your entire project. AWS also notes that suggestions can vary even when the surrounding context stays the same. For better results, put relevant code close to the task: imports, related classes and functions, and a useful skeleton can all make the intended approach clearer.
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Does CodeWhisperer read my whole codebase?
Ordinary inline completion uses context available in the IDE, but the cited AWS guidance does not establish that it automatically ingests every file in a repository for each suggestion. Do not assume that a completion has whole-project awareness just because it refers to a nearby function or familiar pattern.
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There is a separate path for organization-specific recommendations: an administrator can configure a customization using company code. This distinction matters when deciding what context to provide, what capabilities to expect, and who controls the setup. For current product behavior and data policies, consult the Amazon Q Developer documentation.
What should I put in comments to get better suggestions?
Write a specific, focused instruction that states the desired behavior, relevant constraints, and expected result. A comment such as “Validate the request, reject a missing account ID, and return a structured error” gives more direction than “handle request.” The suggestion is still a draft, not a promise that the requirements have been understood perfectly.
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- Include relevant imports and nearby code rather than asking for a solution detached from the surrounding task.
- Establish the class, function, or code skeleton where the new logic belongs.
- Keep a script focused; separate distinct functionality into appropriate modules.
- If output misses the mark, check whether the relevant libraries, classes, and functions are visible in context, then make the prompt more precise or modularize the task.
These practices follow AWS Prescriptive Guidance on supplying context and improving inline suggestions: Provide context for Amazon CodeWhisperer.
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How do I customize Amazon Q Developer with my company’s code?
Customization is a separate, administrator-led workflow—not a prompt setting for an individual completion. An AWS walkthrough published in 2023 describes connecting repositories through AWS CodeStar Connections or supplying code from Amazon S3, creating a customization, reviewing its evaluation, and activating it for selected users. Treat that as a description of the CodeWhisperer-era process, not guaranteed current screen names or requirements; check current Amazon Q Developer documentation before configuring a service.
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- Choose the organizational code source. The 2023 walkthrough describes connecting GitHub, GitLab, or Bitbucket through CodeStar Connections, or uploading code to an S3 bucket and providing its URI.
- Create the customization. The administrator configures a customization using the selected code source.
- Review its evaluation. The walkthrough describes an evaluation score intended to measure accuracy against repository code. It recommends activation at 6 or higher on its scale, whose categories are Very Good (7–10), Fair (4–7), and Poor (0–4). These thresholds and labels come from that 2023 article; confirm that the current product uses them before relying on them.
- Activate it for users. The walkthrough says an administrator manually activates the customization for selected team members; creation alone does not make it available to everyone.
The walkthrough lists Java, JavaScript, TypeScript, and Python for the customization it describes. Because this is older CodeWhisperer material, those languages should not be treated as a definitive list of current Amazon Q Developer limits. It also discusses optional customer-managed AWS KMS encryption and says customization data is deleted after the job finishes; verify current encryption and retention terms with AWS rather than assuming those statements still describe the service.
How ordinary suggestions and customization differ
| Aspect | Inline suggestions | Organization customization |
|---|---|---|
| Source of context | Code and comments available in the IDE | Organizational code connected or uploaded by an administrator, as described in AWS’s 2023 walkthrough |
| Setup and control | Developer provides relevant nearby code and comments while working | Administrator creates and activates a customization for selected users |
| Intended scope | The current coding task and its available IDE context | Organization-specific code patterns and APIs represented by the configured code source |
| Language and data terms | Check current Amazon Q Developer documentation for applicable support and policies | The 2023 walkthrough lists Java, JavaScript, TypeScript, and Python and discusses optional customer-managed KMS encryption; verify current support and terms |
Can I trust or accept the generated code?
Review suggestions before accepting them, then test and adapt them to your requirements. AWS documentation cautions: “Always review a code suggestion before accepting them, and you may need to edit it to do what you intended.” Suggestions can change over time even with the same context, so do not treat a previous result as a guaranteed repeatable answer.
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AWS says suggestions that may resemble open-source training code can be flagged with repository, file, and license information, and users can filter such suggestions. That information can help with review, but it is not a guarantee that every licensing concern will be identified or resolved. Check the relevant project’s license and your organization’s policies.
A separate AWS Security Blog walkthrough from November 2023 describes manually scanning code in open IDE tabs and linked third-party libraries: the code is archived, uploaded to S3, and scanned through CodeWhisperer and CodeGuru. That is the walkthrough’s scan flow, not a general description of how all inline suggestions handle data or a statement of current Amazon Q Developer privacy terms. Use current AWS documentation for those terms and the current scan process.
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