Learn the IT-English vocabulary for handling big pull requests: splitting, stacked PRs, scoping comments and requesting smaller diffs.
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A reviewer writes: 'This PR is too large to review effectively — could you split it?' What is the underlying concern?
Big PRs reduce review quality; smaller, focused diffs are easier to reason about.
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What are 'stacked PRs'?
Stacked (chained) PRs break a big change into a sequence of small, dependent reviews.
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A reviewer says: 'Let's scope this PR to the API change and move the UI work to a follow-up.' What does 'scope' mean?
Scoping a PR limits it to one logical change, deferring unrelated work to a follow-up.
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Which phrase appropriately requests a smaller change?
Suggesting the author split unrelated work keeps each PR focused and reviewable.
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A reviewer does a 'high-level pass' first. What does that mean?
A high-level pass evaluates architecture and approach before drilling into line-level details.
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Sarah: 'Okay, this PR is a bit overwhelming. Before I dive into the details, could you give me a quick summary of the *intended* outcome and the main technical areas covered?'
What is Sarah asking for specifically?
Sarah is requesting a summary, not a deep dive. She's concerned about the size and complexity of the PR and wants to understand the overall purpose before spending significant time reviewing individual changes. Option A asks for an exhaustive line-by-line review, which is often impractical. Options C and D are focused on potential problems rather than understanding the *why* behind the change – a crucial element when assessing a large pull request.
7 / 22
Reviewer: 'I'm seeing a lot of changes in this PR. To help me understand the bigger picture, could you provide a concise overview of the *reason* for these modifications and how they relate to the overall project goals?'
What is the reviewer primarily requesting?
The reviewer isn't asking for a line-by-line explanation (option A) or detailed specs (option C). They're requesting a summary of the *purpose* behind the changes – the 'reason' – and how it fits within the project's broader goals. This demonstrates they want to understand the context and value of the PR, not just the technical details. Option D is incorrect because a documentation update would be a consequence, not the initial request.
8 / 22
Sarah: 'Okay, this PR is a bit overwhelming. Before I dive into the details, could you give me a quick summary of the *intended* outcome and the main technical areas covered?'
What is Sarah asking for specifically?
Sarah is requesting a summary, not a deep dive. She's concerned about the size and complexity of the PR and wants to understand the overall purpose before spending significant time reviewing individual changes. Option A asks for an exhaustive line-by-line review, which is often impractical. Options C and D are focused on potential problems rather than understanding the *why* behind the change – a crucial element when assessing a large pull request.
9 / 22
Reviewer: 'I'm seeing a lot of changes in this PR. To help me understand the bigger picture, could you provide a concise overview of the *reason* for these modifications and how they relate to the overall project goals?'
What is the reviewer primarily requesting?
The reviewer isn't asking for a line-by-line explanation (option A) or detailed specs (option C). They're requesting a summary of the *purpose* behind the changes – the 'reason' – and how it fits within the project's broader goals. This demonstrates they want to understand the context and value of the PR, not just the technical details. Option D is incorrect because a documentation update would be a consequence, not the initial request.
10 / 22
Sarah: 'Okay, this PR is a bit overwhelming. Before I dive into the details, could you give me a quick summary of the *intended* outcome and the main technical areas covered?'
What is Sarah asking for specifically?
Sarah is requesting a summary, not a deep dive. She's concerned about the size and complexity of the PR and wants to understand the overall purpose before spending significant time reviewing individual changes. Option A asks for an exhaustive line-by-line review, which is often impractical. Options C and D are focused on potential problems rather than understanding the *why* behind the change – a crucial element when assessing a large pull request.
11 / 22
Reviewer: 'I'm seeing a lot of changes in this PR. To help me understand the bigger picture, could you provide a concise overview of the *reason* for these modifications and how they relate to the overall project goals?'
What is the reviewer primarily requesting?
The reviewer isn't asking for a line-by-line explanation (option A) or detailed specs (option C). They're requesting a summary of the *purpose* behind the changes – the 'reason' – and how it fits within the project's broader goals. This demonstrates they want to understand the context and value of the PR, not just the technical details. Option D is incorrect because a documentation update would be a consequence, not the initial request.
12 / 22
Sarah: 'Okay, this PR is a bit overwhelming. Before I dive into the details, could you give me a quick summary of the *intended* outcome and the main technical areas covered?'
What is Sarah asking for specifically?
Sarah is requesting a summary, not a deep dive. She's concerned about the size and complexity of the PR and wants to understand the overall purpose before spending significant time reviewing individual changes. Option A asks for an exhaustive line-by-line review, which is often impractical. Options C and D are focused on potential problems rather than understanding the *why* behind the change – a crucial element when assessing a large pull request.
13 / 22
Reviewer: 'I'm seeing a lot of changes in this PR. To help me understand the bigger picture, could you provide a concise overview of the *reason* for these modifications and how they relate to the overall project goals?'
What is the reviewer primarily requesting?
The reviewer isn't asking for a line-by-line explanation (option A) or detailed specs (option C). They're requesting a summary of the *purpose* behind the changes – the 'reason' – and how it fits within the project's broader goals. This demonstrates they want to understand the context and value of the PR, not just the technical details. Option D is incorrect because a documentation update would be a consequence, not the initial request.
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Mark replies to a PR review comment: 'This PR introduces several new features and refactors some existing code. It's quite extensive. Could you perhaps suggest a smaller, more manageable change I could address first?' What is Mark primarily requesting?
Mark isn't simply pointing out the size; he's explicitly requesting a division. He's acknowledging the complexity and asking for a more digestible approach. The correct answer reflects this proactive request for segmentation of the work.
15 / 22
During a standup meeting, Alex says: 'I'm working on a large PR that includes a new authentication flow and updates to the user profile page. I've been trying to tackle it all at once, but it's proving difficult.' What does 'tackling it all at once' likely refer to in this context?
When someone says they're 'tackling it all at once,' they usually mean combining multiple related changes into a single, large PR. This is often discouraged due to the difficulty in reviewing and understanding such expansive changes. The other options represent more granular approaches.
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Lisa sends a Slack message to her team: 'Hey everyone, before I start digging into this PR, could someone give me a quick rundown of the problem we're trying to solve and the key technical decisions made?' What is Lisa seeking?
Lisa is asking for context. She needs to understand *why* the changes were made before diving into the code details. The question explicitly requests a 'rundown' focusing on the problem and decisions, not just the implementation.
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A developer notices a PR with numerous changes. They write in the PR description: 'This PR addresses several bug fixes and minor UI improvements. To ensure clarity, I've included detailed commit messages for each change.' What is the primary benefit of this approach?
Detailed commit messages are crucial for understanding the *evolution* of changes within a PR. They provide a history and rationale that simplifies debugging and maintenance, especially when reviewing large codebases. The other options represent less effective strategies.
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Reviewer David says: 'This PR is impacting performance. Can you provide a detailed breakdown of the changes and their potential impact on latency?' What does 'latency' primarily refer to in this context?
Latency refers to the delay experienced in data transmission. In a software development context, it's the time taken for a request to reach its destination and for the response to return – essentially, how quickly a system reacts. Options A and C are related to code size or lines of code, while option D is irrelevant to performance.
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During a Slack discussion about a large PR, Emily asks: 'Could someone briefly explain the high-level architecture changes introduced in this PR?' What is Emily primarily requesting?
Emily is asking for a high-level understanding of the architectural impact. She wants to grasp *how* the changes affect the system's structure, not necessarily the specifics of every line of code. Option A would be too detailed, and options C and D are tangential requests.
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A PR description reads: 'This change resolves a critical security vulnerability and improves the user experience. Further refinements will be addressed in subsequent PRs.' What is the primary purpose of stating 'further refinements will be addressed in subsequent PRs'?
This phrase is a common tactic used in large PRs to acknowledge that the current change doesn't encompass *all* desired improvements. It manages expectations by signaling that ongoing refinements will be handled separately – preventing confusion and scope creep. Options A and C are about prioritization, while option D is unrelated.
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During a standup meeting, Ben says: 'I'm working on a PR that refactors the database schema and adds a new API endpoint. It's proving difficult to coordinate the changes effectively.' What is Ben primarily struggling with?
Ben's statement indicates a challenge with coordinating *interdependent* changes – specifically, ensuring that the database schema refactor and the new API endpoint are compatible. This is a common problem in large PRs where different parts of the system need to be adjusted together. Options A, C and D represent other potential difficulties.
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A reviewer comments: 'This PR introduces a significant amount of new functionality. To ensure it aligns with the broader product roadmap, could you elaborate on how these changes contribute to achieving key business objectives?' What is the reviewer primarily assessing?
The reviewer is checking whether the new functionality *supports* the product roadmap. They want to understand how the PR contributes to achieving strategic business goals – not just whether the code works correctly. Options A and D are about technical details, while option B is about alignment.
What does the "Reviewing Large Pull Requests" exercise practise?
Learn the IT-English vocabulary for handling big pull requests: splitting, stacked PRs, scoping comments and requesting smaller diffs.
How many questions are in this exercise?
This exercise has 22 questions, each multiple-choice with a full explanation shown after you answer.
What English level is this exercise for?
This exercise is tagged Intermediate. If the vocabulary feels difficult, browse the Code Review Language category page for an easier module to start with.
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Do I get feedback if I answer incorrectly?
Yes — whichever option you choose, right or wrong, you'll immediately see an explanation clarifying the correct term and why the other options don't fit.
Can I retry this exercise?
Yes — once you finish all the questions, a "Try again" button on the results screen resets the exercise so you can practise as many times as you like.
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Is "Reviewing Large Pull Requests" part of a larger series?
Yes — it's one exercise in the Code Review Language category on CoderSlingo. See the category page for the full list of related exercises on similar terminology.
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Where can I find more exercises like this one?
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