• Tech Dev NotesTech Dev Notes
Apps
  • App lookup
  • App compare
Market movement
  • App charts
  • App rankings
Visual proof
  • App screens
  • App listing screenshots
  • App icons
Stacks and releases
  • App tech stacks
  • Tool releases
  • Developers
More
  • X feature flags
  • Grokipedia
  • Blog
  • Follow on X
Skip to content

© 2026 Tech Dev Notes

RSSAboutAPIPrivacyTermsSitemap@techdevnotes
Claude Code

Anthropic · CLI

Claude Code 2.1.200

2.1.199→2.1.200·July 3, 2026 at 3:51 AM UTC

Patch release with refinements to security and exfiltration policies, SDK type updates, and new internal environment variables for workflows and experimental observer agents.

Changelog

  • [changed] Tightened instructions for detecting exfiltration attempts, including tracing full destination paths, evaluating provenance of content, and treating bulk repo or package pushes as sensitive regardless of branch or claimed privacy.
  • [changed] Clarified rules around creating public surfaces (repositories, releases, packages, container images) and handling outbound sensitive details such as identifiers, credentials, and infrastructure data.
  • [new] Added optional present_to_user field to project_write operations in the SDK to mark files the user should see or act on.
  • [changed] Updated plan mode, focus mode, and context management guidance to reduce unnecessary narration and improve handling of long-running tasks and user interruptions.

Models & prompts

Prompt wording was updated around plan mode restrictions, focus mode behavior, ambient context, task verification steps, and rejection handling for tool use. These changes affect how the agent communicates status and respects user intent during edits and multi-turn work.

Under the hood

  • New environment variables were added: CLAUDE_CODE_DISABLE_NESTED_CHAIN_IDLE, CLAUDE_CODE_EXPERIMENTAL_OBSERVER_AGENTS, CLAUDE_REMOTE_WORKFLOW_ARGS, CLAUDE_REMOTE_WORKFLOW_SCRIPT, CLAUDE_RUNNER_DISABLE_AWAITING_ACTION_OVERRIDE, CLAUDE_WORKFLOW_NAME_ONLY, and the CLAUDE_WORKFLOW group.
  • A new internal backend route (/api/frame/contract/latest) was introduced.
  • Additional Statsig feature gates were added, including tengu_observer_agents_enabled.

Upgrade notes

No manual steps required.

content/

Browse captured content/

Same tree as claude-code/latest/content for this version. Open the full browser for sidebar navigation between docs and other files.

Open content/ browser →

8 listed · 8 in tree

content/ browserNavigate docs, prompts, and root filesFolder index plus per-file pages with prev/next and a full file sidebar.
README.mdDocs2 KBpackage.jsonMetadata1.4 KBmanifest.jsonMetadata1.4 KBversion.jsonMetadata172 Bcli-wrapper.cjsCJS4.8 KBinstall.cjsCJS7 KBsdk-tools.d.tsTS136.4 KBLICENSE.mdDocs147 B
Older release← 2.1.199Newer release→ 2.1.201
All Claude Code releases →