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HomeDocsClaude Code CLI 7 Oct 2026
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How Claude Code works changedhow-claude-code-works

Nearest release: v2.1.293, published 9 hours after upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 7 Oct 2026 07:30 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 20 Oct 2026 18:37 UTC.

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First seen 14 Aug 2026 this site's first read of the page
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1111When you give Claude a task, it works through three phases: **gather context**, **take action**, and **verify results**. These phases blend together. Claude uses tools throughout, whether searching files to understand your code, editing to make changes, or running tests to check its work.
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13<img src="https://mintcdn.com/claude-code/ikqp3_70mqIahteV/images/agentic-loop.svg?fit=max&auto=format&n=ikqp3_70mqIahteV&q=85&s=4a30fb7ce2815012a9f27c955e2c6bb0" className="dark:hidden" alt="Diagram of the agentic loop: Your prompt leads to Claude gathering context, taking action, verifying results, and repeating until task complete. You can interrupt at any point." width="720" height="280" data-path="images/agentic-loop.svg" />
13![Diagram of the agentic loop: Your prompt leads to Claude gathering context, taking action, verifying results, and repeating until task complete. You can interrupt at any point.](https://mintcdn.com/claude-code/ikqp3_70mqIahteV/images/agentic-loop.svg?fit=max\&auto=format\&n=ikqp3_70mqIahteV\&q=85\&s=4a30fb7ce2815012a9f27c955e2c6bb0)
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15<img src="https://mintcdn.com/claude-code/_xqph1dUOslCOwsj/images/agentic-loop-dark.svg?fit=max&auto=format&n=_xqph1dUOslCOwsj&q=85&s=75e1d55ed76857a952f9a2dffbab02df" className="hidden dark:block" alt="Diagram of the agentic loop: Your prompt leads to Claude gathering context, taking action, verifying results, and repeating until task complete. You can interrupt at any point." width="720" height="280" data-path="images/agentic-loop-dark.svg" />
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1715The loop adapts to what you ask. A question about your codebase might only need context gathering. A bug fix cycles through all three phases repeatedly. A refactor might involve extensive verification. Claude decides what each step requires based on what it learned from the previous step, chaining dozens of actions together and course-correcting along the way.
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1917You're part of this loop too. You can interrupt at any point to steer Claude in a different direction, provide additional context, or ask it to try a different approach. Claude works autonomously but stays responsive to your input.
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107105Resuming a session with `claude --continue` or `claude --resume` reopens it under the same session ID and appends new messages to the existing conversation. Forking with `--fork-session` or `/branch` copies the history into a new session ID, leaving the original unchanged.
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109<img src="https://mintcdn.com/claude-code/ikqp3_70mqIahteV/images/session-continuity.svg?fit=max&auto=format&n=ikqp3_70mqIahteV&q=85&s=04ed0984a58e4127e05b3640265241a3" className="dark:hidden" alt="Diagram of session continuity: resume continues the same session, fork creates a new branch with a new ID." width="560" height="280" data-path="images/session-continuity.svg" />
107![Diagram of session continuity: resume continues the same session, fork creates a new branch with a new ID.](https://mintcdn.com/claude-code/ikqp3_70mqIahteV/images/session-continuity.svg?fit=max\&auto=format\&n=ikqp3_70mqIahteV\&q=85\&s=04ed0984a58e4127e05b3640265241a3)
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111<img src="https://mintcdn.com/claude-code/_xqph1dUOslCOwsj/images/session-continuity-dark.svg?fit=max&auto=format&n=_xqph1dUOslCOwsj&q=85&s=886a384bce8298594e43f124617ea665" className="hidden dark:block" alt="Diagram of session continuity: resume continues the same session, fork creates a new branch with a new ID." width="560" height="280" data-path="images/session-continuity-dark.svg" />
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113109For the resume flags, the `/resume` picker, naming, and what happens when the same session is open in two terminals, see [Manage sessions](/docs/en/sessions).
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115111### The context window
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224220## What's next
225221 
226<CardGroup cols={2}>
227 <Card title="Extend with features" icon="puzzle-piece" href="/docs/en/features-overview">
228 Add skills and MCP connections
229 </Card>
222> **[Extend with features](/docs/en/features-overview)**
223>
224> Add skills and MCP connections
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231 <Card title="Common workflows" icon="graduation-cap" href="/docs/en/common-workflows">
232 Step-by-step guides for typical tasks
233 </Card>
234</CardGroup>
226> **[Common workflows](/docs/en/common-workflows)**
227>
228> Step-by-step guides for typical tasks
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