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Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.250 Feeds RSS JSON llms.txt

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Week 15 · April 6–10, 2026

whats-new/2026-w15

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whats-new/2026-w15 First recorded · 115 lines, first recorded

# Week 15 · April 6–10, 2026

The first capture of this source. The page was already there, and this is what it said.

# Week 15 · April 6–10, 2026

> Ultraplan cloud planning, the Monitor tool with self-pacing /loop, /team-onboarding for packaging your setup, and /autofix-pr from your terminal.

<div className="digest-meta">
  <span>Releases <a href="/docs/docs/en/changelog#2-1-92">v2.1.92 → v2.1.101</a></span>
  <span>4 features · April 6–10</span>
</div>

<div className="digest-feature">
  <div className="digest-feature-header">
    <span className="digest-feature-title">Ultraplan</span>
    <span className="digest-feature-pill">research preview</span>
  </div>

  <p className="digest-feature-lede">Kick off plan mode in the cloud from your terminal, then review the result in your browser. Claude drafts the plan in a Claude Code on the web session while your terminal stays free; when it's ready you comment on individual sections, ask for revisions, and choose to execute remotely or send it back to your CLI. As of v2.1.101 the first run auto-creates a default cloud environment, so there's no web setup step before you can try it.</p>

  <Frame>
    <video autoPlay muted loop playsInline className="w-full" src="https://mintcdn.com/claude-code/aFXPQxiBOW99MHS3/images/whats-new/ultraplan.mp4?fit=max&auto=format&n=aFXPQxiBOW99MHS3&q=85&s=e8f2f23730c6a5c289dbf3e7b13eadf6" data-path="images/whats-new/ultraplan.mp4" />
  </Frame>

  <p className="digest-feature-try">Run the command, or just include the keyword in any prompt:</p>

  ```text title="Claude Code" wrap theme={null}
  /ultraplan migrate the auth service from sessions to JWTs
  ```

  <a className="digest-feature-link" href="/docs/docs/en/ultraplan">Ultraplan guide</a>
</div>

<div className="digest-feature">
  <div className="digest-feature-header">
    <span className="digest-feature-title">Monitor tool</span>
    <span className="digest-feature-pill">v2.1.98</span>
  </div>

  <p className="digest-feature-lede">A new built-in tool that spawns a background watcher and streams its events into the conversation: each event lands as a new transcript message that Claude reacts to immediately. Tail a training run, babysit a PR's CI, or auto-fix a dev server crash the moment it happens, all without a Bash sleep loop holding the turn open.</p>

  <Frame>
    <video autoPlay muted loop playsInline className="w-full" src="https://mintcdn.com/claude-code/aFXPQxiBOW99MHS3/images/whats-new/monitor-tool.mp4?fit=max&auto=format&n=aFXPQxiBOW99MHS3&q=85&s=f4156c15a0999de5c5157f54a3117c89" data-path="images/whats-new/monitor-tool.mp4" />
  </Frame>

  <p className="digest-feature-try">Ask Claude to watch something while you keep working:</p>

  ```text title="Claude Code" wrap theme={null}
  Tail server.log in the background and tell me the moment a 5xx shows up
  ```

  <p className="digest-feature-try">This pairs with <code>/loop</code>, which now self-paces: omit the interval and Claude schedules the next tick based on the task, or reaches for the Monitor tool to skip polling altogether.</p>

  ```text title="Claude Code" wrap theme={null}
  /loop check CI on my PR
  ```

  <a className="digest-feature-link" href="/docs/docs/en/tools-reference#monitor-tool">Monitor tool reference</a>
</div>

<div className="digest-feature">
  <div className="digest-feature-header">
    <span className="digest-feature-title">/autofix-pr</span>
    <span className="digest-feature-pill">CLI</span>
  </div>

  <p className="digest-feature-lede">PR auto-fix landed on the web in Week 13. Now you can turn it on without leaving your terminal: <code>/autofix-pr</code> infers the open PR for your current branch and enables auto-fix for it on Claude Code on the web in one step. Push your branch, run the command, walk away; Claude watches CI and review comments and pushes fixes until it's green.</p>

  <Frame>
    <video autoPlay muted loop playsInline className="w-full" src="https://mintcdn.com/claude-code/aFXPQxiBOW99MHS3/images/whats-new/autofix-pr.mp4?fit=max&auto=format&n=aFXPQxiBOW99MHS3&q=85&s=95f191eb4711130a128aec3f6b720527" data-path="images/whats-new/autofix-pr.mp4" />
  </Frame>

  <p className="digest-feature-try">Run it from the PR's branch:</p>

  ```text title="Claude Code" wrap theme={null}
  /autofix-pr
  ```

  <a className="digest-feature-link" href="/docs/docs/en/claude-code-on-the-web#auto-fix-pull-requests">Auto-fix pull requests</a>
</div>

<div className="digest-feature">
  <div className="digest-feature-header">
    <span className="digest-feature-title">/team-onboarding</span>
    <span className="digest-feature-pill">v2.1.101</span>
  </div>

  <p className="digest-feature-lede">Generates a teammate ramp-up guide from your local Claude Code usage. Run it in a project you know well and hand the output to a new teammate so they can replay your setup instead of starting from defaults.</p>

  <p className="digest-feature-try">Run it from a project you've spent real time in:</p>

  ```text title="Claude Code" wrap theme={null}
  /team-onboarding
  ```

  <a className="digest-feature-link" href="/docs/docs/en/commands">Commands reference</a>
</div>

<div className="digest-wins">
  <p className="digest-wins-title">Other wins</p>

  <div className="digest-wins-grid">
    <div>Focus view: press <code>Ctrl+O</code> in flicker-free mode to collapse the view to your last prompt, a one-line tool summary with diffstats, and Claude's final response</div>
    <div>Guided <a href="/docs/docs/en/amazon-bedrock">Amazon Bedrock</a> and <a href="/docs/docs/en/google-vertex-ai">Google Cloud's Agent Platform</a> setup wizards on the login screen: pick "3rd-party platform" for step-by-step auth, region, credential check, and model pinning</div>
    <div><code>/agents</code> gets a tabbed layout: a Running tab shows live subagents with a <code>● N running</code> count, plus Run agent and View running instance actions in the Library tab</div>
    <div>Default effort level is now <code>high</code> for API-key, Amazon Bedrock, Google Cloud's Agent Platform, Microsoft Foundry, Team, and Enterprise users (control with <code>/effort</code>)</div>
    <div><code>/cost</code> shows a per-model and cache-hit breakdown for subscription users</div>
    <div><code>/release-notes</code> is now an interactive version picker</div>
    <div>Status line: new <code>refreshInterval</code> setting re-runs the command every N seconds, and <code>workspace.git\_worktree</code> in the JSON input</div>
    <div><code>CLAUDE\_CODE\_PERFORCE\_MODE</code>: Edit/Write fail on read-only files with a <code>p4 edit</code> hint instead of silently overwriting</div>
    <div>OS CA certificate store is now trusted by default, so enterprise TLS proxies work without extra setup (<code>CLAUDE\_CODE\_CERT\_STORE=bundled</code> to opt out)</div>
    <div>Amazon Bedrock powered by Mantle: set <code>CLAUDE\_CODE\_USE\_MANTLE=1</code></div>
    <div>Hardened Bash tool permissions: backslash-escaped flags, env-var prefixes, <code>/dev/tcp</code> redirects, and compound commands now prompt correctly</div>
    <div><code>UserPromptSubmit</code> hooks can set the session title via <code>hookSpecificOutput.sessionTitle</code></div>
  </div>
</div>

[Full changelog for v2.1.92–v2.1.101 →](/docs/en/changelog#2-1-92)