Claude Code vs Google Jules: Coding Workflow Differences
Claude Code and Google Jules are both AI coding assistants, but they work in different environments and handle tasks differently. Here is how they compare on execution, review and handoff, and how to keep requirements and checkpoints independent of either tool.
Updated 5 min read
Claude Code runs in your local terminal and edits files in your repository. Google Jules runs in a cloud sandbox, clones your repository and opens a pull request when it finishes. Both are AI coding assistants, but the execution environment and review workflow are fundamentally different. Tools like fenbs keep requirements, decisions and checkpoints outside both tools so your work stays portable regardless of which one you use.
This comparison covers execution environment, review process, task handoff, and who each tool suits best.
How they run: local versus cloud sandbox
Claude Code installs in your terminal via npm. It reads and writes files in your working directory, runs shell commands, and operates inside your existing development environment — your installed tools, your secrets manager, your file system. You see every change as it happens.
Jules runs in a Google-managed cloud environment. When you assign Jules a task (via GitHub), it clones the repository into its own sandbox, makes changes, and submits a pull request. Your local machine is not involved during the work. You review the PR when Jules is done.
The practical difference: Claude Code is an interactive tool you control turn-by-turn. Jules is an asynchronous agent that works independently and brings results back for review.
| Claude Code | Google Jules | |
|---|---|---|
| Execution | Local terminal, your environment | Cloud sandbox, isolated environment |
| Trigger | You start each session manually | GitHub issue or task assignment |
| Visibility | Live, turn-by-turn | Async; you review the PR when done |
| Review | Check as you go | PR review after completion |
| Environment access | Full local access | Repository only, in sandbox |
| Interruption | You can steer mid-task | Limited mid-task correction |
| Best fit | Interactive, exploratory, complex tasks | Well-defined, self-contained tasks |
What the review process looks like
With Claude Code, you review changes as they happen. You can ask it to explain a change before it applies, check the diff after each edit, and redirect it if the approach is wrong. The feedback loop is immediate.
With Jules, you review the finished pull request. Jules writes a description of what it changed and why. You check the diff, run the tests, and approve or request changes. If the approach is fundamentally wrong, you either request a revision or discard the PR and start over.
Neither approach is better in all situations. Interactive review suits exploratory or complex work where requirements are not fully settled before you start. Asynchronous PR review suits well-defined, self-contained tasks where you trust the model to find the right approach.
Task handoff and context
Claude Code's context is the current conversation. It knows what was said and done in this session. When the session ends, the context is gone unless you save it somewhere.
Jules gets its context from the GitHub issue or task description you provide. It reads the repository, the issue text and any linked materials. When it opens the PR, the context lives in the PR description and commit messages.
In both cases, the quality of the output depends heavily on the quality of the input. A vague issue gives Jules a vague starting point. A vague prompt gives Claude Code a vague starting point. Precise requirements produce better results from both tools.
Write requirements once, use them in either tool
Write the task in fenbs: the goal, the acceptance criteria, the constraints and any decisions that apply. When you use Claude Code, ask it to read the task context first. When you use Jules, copy the task into the GitHub issue. The same record drives both, and the outcome — a PR or a set of edits — gets linked back to the task so you know what was done and why.
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Switching between tools and keeping context
You might use Jules for the first draft of a feature (async, PR-based) and then Claude Code to fix the remaining test failures (interactive, turn-by-turn). The context handoff between them is the challenge.
Jules' PR gives you the code changes and the PR description. Claude Code needs to know which of those changes is relevant to the current task. Without an outside record, you are reading two sources — the PR and the conversation — to piece together what was agreed.
An outside task record gives both tools the same starting point. Claude Code reads the task context and understands where the Jules PR left off. The record is the handoff, not the transcript.
For how Claude Code compares to Gemini CLI rather than Jules, see Gemini CLI vs Claude Code. For a broader Claude vs Gemini comparison, see Claude vs Gemini.
Strengths and limits of each tool
Claude Code is stronger when the task requires judgment at each step: interpreting requirements, navigating an unfamiliar codebase, fixing an ambiguous bug, or making architecture decisions. You are present, you can steer, and you can correct.
Jules is stronger when the task is well-specified and you want to hand it off entirely: add a typed function, fix a lint error, generate tests for a specific module. You write the issue, Jules does the work, you review the PR.
Jules' cloud sandbox means it cannot reach internal services, use local secrets, or interact with your local development server. Tasks that require those things need Claude Code or another locally-running tool.
Claude Code does not have Google Jules' GitHub integration out of the box. Jules creates PRs automatically; Claude Code creates commits that you push yourself.
Store the task requirements and any mid-task checkpoints in fenbs rather than in a tool-specific format. When you switch from Jules to Claude Code, or back again, the task context is already there. Connect Claude Code from Integrations or copy the task into the next GitHub issue — either way the record stays consistent.
Which to choose
Choose Claude Code when: you need to explore the problem interactively, the task is complex or ambiguous, you need access to local services or secrets, or you want fine-grained control at each step.
Choose Jules when: the task is well-defined, you want an async workflow, the task only needs the repository (no local services), and you are comfortable reviewing a PR rather than watching the work happen.
Using both is practical for a development team. The key is to write requirements in a form that works for either: precise, testable, and not dependent on a specific tool's format. For more on Claude Code, see what Claude Code is and how to install Claude Code.
How to do this with fenbs
- Create a free account and add the project.
- Write each task with a clear goal, acceptance criteria and any relevant decisions. Keep it tool-agnostic.
- When using Claude Code, connect it from Integrations and ask it to read the task context before it starts.
- When using Jules, paste the task description into the GitHub issue. Link the resulting PR back to the task in fenbs.
- After any session — Claude Code or Jules — update the task with what was completed, what was tested, and what the next step is.