Version 2.1.9

You can now specify a custom directory for plan files via the plansDirectory setting.

{
  "plansDirectory": "./plans"
}

• The directory must be within the project root
• If not specified, plans are stored in the default session directory
• Useful for keeping plan files in version control alongside your project

jN() at line 300782 (plans directory resolution, contains "plansDirectory must be within project root")

Users on older Opus 4.x models (Opus 4.0, 4.1) now see a notification suggesting they upgrade to Opus 4.5.

• Only shows for first-party users (claude.ai)
• Displays: "Opus 4.5 is available and is our best model for coding"
• Includes a hint to use /model command to upgrade
• Nudge appears for ~10 seconds then dismisses

vN9() at line 535826 (opus upgrade nudge, contains "opus-45-upgrade-nudge", "Opus 4.5 is available and is our best model for coding")

The ENABLE_TOOL_SEARCH environment variable now supports percentage-based control with the auto:N syntax.

ENABLE_TOOL_SEARCH=auto:50  # 50% tool search probability
ENABLE_TOOL_SEARCH=auto:0   # Equivalent to "tst" (always tool search)
ENABLE_TOOL_SEARCH=auto:100 # Equivalent to standard/mcp-cli modes

• Values are clamped between 0-100
• Invalid values log a warning and fall back to defaults
• Provides fine-grained control over tool search behavior

DX0() at line 292496 (auto percentage parser, contains "Invalid ENABLE_TOOL_SEARCH value", "expected auto:N where N is a number")

Tool search now provides better relevance scoring for MCP tools by parsing server and action names from the tool name format (mcp__server__action_name).

• Server name exact matches: +12 points
• Server name partial matches: +6 points
• Action name exact matches: +8 points
• Action name partial matches: +4 points
• Full name matches: +3 points
• Description word boundary matches: +2 points

EQ7() at line 428976 (MCP tool name parser, uses regex mcp__)

Remote sessions now use a hybrid transport that sends messages via HTTP POST with WebSocket fallback, improving reliability.

• Implements retry logic with exponential backoff (up to 10 attempts)
• Converts WebSocket URLs to HTTP POST endpoints for events API
• Client errors (4xx except 429) are not retried
• Maximum backoff delay of 8 seconds

Yv0 class at line 542866 (HybridTransport, contains "HybridTransport: POST URL", "cli_hybrid_transport_initialized")

Sessions can now properly detect and connect to staging environments (staging.claude.ai) for internal testing.

Q65() at line 298312 (staging detection, contains "_staging_", "https://staging.claude.ai")

New telemetry tracks SSL/TLS certificate configuration for debugging connectivity issues.

• Detects NODE_EXTRA_CA_CERTS environment variable
• Detects CLAUDE_CODE_CLIENT_CERT for mTLS
• Detects --use-system-ca and --use-openssl-ca Node.js options

wT7() at line 545895 (certificate telemetry, contains "has_node_extra_ca_certs", "has_use_system_ca")

Internal support for tracking session phases: planning, implementing, reviewing, verifying.

Vd5() at line 373496 (phase status mapper, contains "planning", "implementing", "reviewing", "verifying")

The terminal rendering system now reuses screen buffers for better memory efficiency, reducing allocations during rendering.

C3B() at line 187260 (resetScreen function, screen buffer management)

• Fixed MCP client cleanup to properly handle timeouts during disconnect (bd() at line 296688, 5-second timeout for cleanup)
• Improved screen array handling to prevent resizing issues in edge cases

Infrastructure for asking quick side questions without interrupting the main conversation.

Stubbed - isEnabled: () => !1 (always returns false)

• Command exists: /btw <question>
• Full UI component exists with loading spinner
• Error handling for failed responses
• Dismiss with Enter or Escape
• The command type changed from "local" to "local-jsx" (JSX component rendering)

eB7 at line 437798 (btw command, isEnabled: () => !1, contains "/btw", "Answering...")