How does Atlas ensure NestJS documentation is up-to-date?

Atlas ensures NestJS documentation is always up-to-date by reading directly from your source code using tools like `lsp` and `read`. It analyzes the current implementation and actual usage patterns, guaranteeing that the generated README reflects what the code does today, not what it was intended to do a year ago.

Can Atlas document NestJS DTOs and ValidationPipe usage?

Yes, Atlas can read your NestJS DTOs and understand how they are wired to your `ValidationPipe`. This allows it to accurately document data structures, validation rules, and their application within your module, providing concrete examples in the README.

What NestJS files does Atlas read for module documentation?

Atlas reads key NestJS files such as `nest-cli.json` to identify the project, `app.module.ts` for application context, and specific module files (e.g., `users.module.ts`, `users.controller.ts`, `users.service.ts`) to enumerate exports and understand their implementation details.

How does Atlas verify code examples in a NestJS README?

Atlas verifies every code sample in a NestJS README by executing it with the `bash` tool. This process often leverages your existing `jest` test setup, ensuring that all documented code examples are functional and accurate, eliminating the risk of outdated or incorrect snippets.

Is Atlas compatible with my existing NestJS `prettier` setup?

Absolutely. Atlas is designed to integrate with your existing NestJS `prettier` setup. After making any edits, Atlas can run `prettier` across the touched files, including the generated `README.md`, to ensure all changes adhere to your project's established formatting standards.

Does Atlas integrate with `jest` for NestJS documentation?

Yes, Atlas integrates with `jest` by leveraging your test runner to verify code samples. When Atlas executes code examples with `bash`, it can utilize your `jest` test harness to confirm the functionality and correctness of the documented code, enhancing the reliability of your READMEs.

How does Atlas handle security and permissions for NestJS projects?

Atlas prioritizes security and permissions. Every tool call is permission-gated against allow, ask, and deny rules. It drafts plans in a read-only agent and requires explicit approval before making any changes. All file edits are presented as unified diffs for review, and changes can be rolled back via git patches, ensuring full control over your NestJS project.

Document a NestJS Module with a README using Atlas in 2026

In 2026, NestJS developers can use Atlas to generate precise README documentation for modules by directly analyzing source code, ensuring the documentation reflects the current implementation rather than outdated specifications. Atlas leverages your existing `jest` tests, `pnpm` dependencies, and `prettier` configurations to produce accurate, verifiable documentation that describes what the code actually does today, integrating direct with your established NestJS toolchain.

How does Atlas ensure NestJS module documentation is accurate?

Atlas ensures NestJS module documentation is accurate by directly analyzing the codebase in 2026, rather than relying on outdated comments or memory. It uses the `lsp` tool's `documentSymbol` operation to enumerate every public API export, guaranteeing that no part of your module's surface is missed or invented, providing a 100% traceable account of your code.

To produce documentation that describes what the code actually does today, Atlas employs a rigorous, source-driven approach. For each NestJS module, Atlas first uses the `lsp` tool's `documentSymbol` operation to precisely identify all exported components, such as controllers, providers, and DTOs. This ensures a complete and accurate representation of the module's public API. Following this, Atlas utilizes the `read` tool to examine the implementation details of each export. To understand real-world usage patterns, it then performs a `codebase_search` to find how callers actually interact with these exports within your NestJS project. This combination of direct code analysis and usage context allows Atlas to generate documentation that is not merely plausible, but verifiably traceable to the current state of your NestJS codebase, indexed efficiently by AST declarations using tree-sitter and local Ollama embeddings.

What NestJS tools and files does Atlas integrate with?

Atlas integrates deeply with the NestJS ecosystem, recognizing key files like `nest-cli.json` and `app.module.ts` in 2026. It leverages your project's `jest` test runner for code sample verification, `pnpm` for package management context, and `prettier` for consistent formatting, ensuring generated documentation aligns with your existing development practices.

Atlas is designed to be a native extension of the NestJS developer's workflow. It starts by recognizing the presence of a `nest-cli.json` file, which signals a NestJS project, and `app.module.ts` as the application's root. Atlas can read your `@Module` imports and exports, understand provider scopes, and even analyze DTOs wired to your `ValidationPipe` to accurately describe data structures and validation rules. When generating documentation, Atlas uses `grep` to find existing `README.md` files within your repository, allowing it to match the established heading structure and tone, rather than inventing a new format. Crucially, every code sample Atlas includes in the documentation is verified by running it with `bash`, often leveraging your `jest` test setup to confirm functionality. After any edits, Atlas can run `prettier` across touched providers or documentation files, maintaining your project's formatting standards.

How does Atlas generate and verify a NestJS module README?

Generating a NestJS module README with Atlas involves a multi-step process in 2026, culminating in a document that accurately reflects your code. Atlas first gathers information using `lsp` and `read`, then drafts the README with the `write` tool, quoting real signatures and file paths, and finally verifies every code sample using `bash` to ensure 100% accuracy.

The process of generating a README for a NestJS module with Atlas is systematic and verifiable. After enumerating the module's public API with `lsp` and understanding its implementation and usage with `read` and `codebase_search`, Atlas prepares to write the documentation. It first uses the `grep` tool to search the repository for an existing `README.md` file. This step is critical for matching the established heading structure, tone, and overall style of your project's documentation, ensuring consistency. Once the context is gathered, Atlas employs the `write` tool to emit the new or updated `README.md`. This generated documentation is rich with concrete details, quoting real NestJS code signatures, actual file paths, and specific configuration examples. A non-negotiable final step is the verification of every code sample within the generated document. Atlas executes these samples using `bash`, treating any sample that was never executed as a liability. This rigorous verification process, often leveraging your `jest` test environment, guarantees that the documentation provides runnable, correct examples for your NestJS module.

What are Atlas's safety and review mechanisms for NestJS documentation?

Atlas incorporates robust safety and review mechanisms for NestJS documentation edits in 2026, ensuring developers maintain full control. Every Atlas tool call is permission-gated, and all proposed changes are presented as a unified diff for approval, preventing unintended modifications to your `app.module.ts` or other critical files.

Safety and developer control are paramount when Atlas interacts with your NestJS codebase. Every Atlas tool call, whether it's `lsp`, `read`, `write`, or `bash`, is permission-gated against allow, ask, and deny rules configured by the developer. Before any modifications are made, Atlas drafts a comprehensive plan in a read-only plan agent and explicitly asks for approval before switching to a build agent that can make changes. For every file edit, including updates to `README.md` or even `app.module.ts` if Atlas were to register a new guard, Atlas computes a unified diff and surfaces it for your review and explicit approval before writing. This granular control extends to versioning, as Atlas snapshots file changes as git patches, allowing edits to be easily diffed and rolled back if necessary. Furthermore, Atlas can read git branches, status, and diffs, and can stage and create commits on your behalf, all behind explicit permission prompts, ensuring a secure and transparent documentation workflow for your NestJS projects.

Step by step

01Run Atlas in your NestJS project, ensuring `nest-cli.json` and `app.module.ts` are present for context.
02Ask Atlas to "Document the `UsersModule` with a README" to initiate the documentation process.
03Atlas uses the `lsp` tool's `documentSymbol` operation to enumerate the public API of your `users.module.ts`.
04Atlas employs the `read` tool to analyze the implementation of each export and `codebase_search` to find its practical usage within your NestJS project.
05Atlas uses `grep` to locate an existing `README.md` in your repository to match its heading structure and tone.
06Atlas drafts the new or updated `README.md` using the `write` tool, quoting real NestJS code signatures and file paths.
07Atlas verifies every code sample in the drafted `README.md` by executing it with `bash`, often leveraging your `jest` test setup.
08Review the unified diff presented by Atlas, which includes any `prettier`-formatted changes to the `README.md`.
09Approve the changes to allow Atlas to write the accurate, verified `README.md` to your NestJS module.

Frequently asked questions

How does Atlas ensure NestJS documentation is up-to-date?: Atlas ensures NestJS documentation is always up-to-date by reading directly from your source code using tools like `lsp` and `read`. It analyzes the current implementation and actual usage patterns, guaranteeing that the generated README reflects what the code does today, not what it was intended to do a year ago.
Can Atlas document NestJS DTOs and ValidationPipe usage?: Yes, Atlas can read your NestJS DTOs and understand how they are wired to your `ValidationPipe`. This allows it to accurately document data structures, validation rules, and their application within your module, providing concrete examples in the README.
What NestJS files does Atlas read for module documentation?: Atlas reads key NestJS files such as `nest-cli.json` to identify the project, `app.module.ts` for application context, and specific module files (e.g., `users.module.ts`, `users.controller.ts`, `users.service.ts`) to enumerate exports and understand their implementation details.
How does Atlas verify code examples in a NestJS README?: Atlas verifies every code sample in a NestJS README by executing it with the `bash` tool. This process often leverages your existing `jest` test setup, ensuring that all documented code examples are functional and accurate, eliminating the risk of outdated or incorrect snippets.
Is Atlas compatible with my existing NestJS `prettier` setup?: Absolutely. Atlas is designed to integrate with your existing NestJS `prettier` setup. After making any edits, Atlas can run `prettier` across the touched files, including the generated `README.md`, to ensure all changes adhere to your project's established formatting standards.
Does Atlas integrate with `jest` for NestJS documentation?: Yes, Atlas integrates with `jest` by leveraging your test runner to verify code samples. When Atlas executes code examples with `bash`, it can utilize your `jest` test harness to confirm the functionality and correctness of the documented code, enhancing the reliability of your READMEs.
How does Atlas handle security and permissions for NestJS projects?: Atlas prioritizes security and permissions. Every tool call is permission-gated against allow, ask, and deny rules. It drafts plans in a read-only agent and requires explicit approval before making any changes. All file edits are presented as unified diffs for review, and changes can be rolled back via git patches, ensuring full control over your NestJS project.

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