Claude Code v2.0.55

What: Organizations can now restrict which external marketplaces users can install via the strictKnownMarketplaces policy setting.

How it works:

• Administrators set allowed marketplace sources in enterprise policy settings
• When users attempt to install a marketplace, the source is validated against the allowlist
• Blocked sources show clear error messages indicating the policy restriction

Details:

• Supports multiple source types: GitHub repos, URLs, git repos, npm packages, file paths, and directories
• Clear error messaging: "Marketplace source 'X' is blocked by enterprise policy. Allowed sources: ..."
• Evidence: pEA() at line ~164954, apA() at line ~164985, So() at line ~165393 in v2.0.55

What: New mandatoryDenySearchDepth setting controls how deep the sandbox scans for dangerous files and directories.

Details:

• Default value: 3 levels deep
• Configurable via policy settings
• Improves performance in large repositories by limiting recursive scanning
• Evidence: Ye8() at line ~188483, with default value of 3

What: Claude Code now generates an anonymized hash identifier for repositories to improve telemetry without exposing actual repository URLs.

How it works:

• Parses git remote URLs (supports both SSH and HTTPS formats)
• Normalizes the URL to host/path format
• Generates a SHA-256 hash and uses the first 16 characters
• Included in telemetry events as rh property

Details:

• Supports formats like [email protected]:org/repo.git and https://github.com/org/repo
• Evidence: pA6() at line ~192113, V7B() at line ~192122

What: A new system that predicts and suggests the user's next prompt based on conversation context.

Details:

• Generates 3-8 word suggestions for natural follow-ups (e.g., "run the tests", "now fix the linting errors")
• Only triggers for main REPL thread queries
• Includes telemetry for suggestion display and acceptance tracking
• Evidence: Functions at lines ~409868-409929, telemetry event tengu_prompt_suggestion_shown

What: Specific error detection and messaging when uploaded images exceed API size limits.

Details:

• Detects API 400 errors containing "image exceeds" and "maximum"
• Returns dedicated image_too_large error type
• User-friendly message: "Image was too large. Double press esc to go back and try again with a smaller image."
• Evidence: Error detection at line ~345176, message constant FF5 at line ~345069

What: Improved compatibility checking for Ghostty and iTerm terminals using semantic versioning.

Before: Simple environment variable check (TERM === "xterm-ghostty")

After:

• Uses proper semver comparison via TERM_PROGRAM and TERM_PROGRAM_VERSION
• Ghostty: requires version >= 1.2.0
• iTerm.app: requires version >= 3.6.6

Details:

• Evidence: New function e46() at line ~222505 with semver checking via mUA.gte()

What: The async agent monitoring panel now shows significantly more information about running agents.

New features:

• Real-time task progress tracking with completion counters
• Token usage display (total tokens consumed)
• Tool use count tracking
• Recent activity feed showing current agent operations
• Increased prompt preview from 200 to 300 characters

Details:

• Integrates with todo state for task tracking
• Shows "Tasks (X/Y)" with completion progress
• Displays token and tool counts in status line
• Evidence: O29() at line ~468985 replaces older PQ9() function

What: The sed command validator now supports explicit file write permission control.

How it works:

• New allowFileWrites parameter controls whether in-place editing is permitted
• When in "acceptEdits" mode, -i and --in-place flags are allowed
• Otherwise, sed write operations require explicit approval

Details:

• Function signature changed to accept options object with allowFileWrites
• Evidence: h92() at line ~314399 with parameter G?.allowFileWrites

What: Pipe segmentation for bash commands now uses tree-sitter parsing for more accurate command analysis.

Details:

• Uses getPipeSegments() method for reliable pipe detection
• Better handles complex shell syntax
• Falls back to basic parsing if tree-sitter unavailable
• Evidence: R92() at line ~313655 with u01.parse() integration

• repository_id and repository_owner_id for GitHub Actions metadata
• wsl_version for Windows Subsystem for Linux environments
• is_claubbit flag for internal tooling detection
• swe_bench_run_id, swe_bench_instance_id, swe_bench_task_id for benchmark tracking
• queryChainId and queryDepth for fork agent query tracking
• Cache hit rate metrics for forked agent queries

• tengu_fork_agent_query: Tracks forked agent query performance and token usage
• tengu_prompt_suggestion_shown: When prompt suggestions are displayed
• tengu_prompt_suggestion_accepted: When users accept suggested prompts

What: Fixed the order of permission checks for bash commands to ensure dangerous file checks happen before subcommand evaluation.

Details:

• Dangerous file check (ct1) now runs after subcommand parsing
• Returns early if dangerous patterns detected, before proceeding to subcommand analysis
• Evidence: Function et1() at line ~314794 with reordered checks

What: Removed the standalone session-memory agent type that was unused.

Details:

• Function SS3() removed from v2.0.54
• Memory extraction handled through other mechanisms