Sync Claude Code upstream changes (9582ad4 -> da80366)

[github-actions]

Detected upstream updates in anthropics/claude-code affecting Claude Code CLI surface tracking.

Runtime source of truth for this SDK is the real print-mode CLI contract:

• claude -p --output-format json

• claude -p --output-format stream-json --verbose

• Submodule path: submodules/anthropic-claude-code

• Published CLI package used in CI: @anthropic-ai/claude-code

• Watched branch: main

• Current pinned commit: 9582ad480f687bbeaf0025852ac4f020b07f20bb

• Latest upstream commit: da80366c484698e6370ad9e8abf121f33f8f79e0

• Compare: anthropics/claude-code@9582ad4...da80366

• Latest commit: anthropics/claude-code@da80366

Changed files (CLI-relevant)

• CHANGELOG.md

Potential CLI flag changes from diff

• --git
• --resume

Potential model changes from diff

• (no model tokens detected from diff)

Potential feature changes from diff

• (no feature tokens detected from diff)

Commits

• da80366 chore: Update CHANGELOG.md (2026-03-06)

Action required

• Pull the new anthropics/claude-code submodule commit into this repository
• Validate latest claude --help output and representative non-interactive runtime behavior
• Re-check claude -p --output-format json and claude -p --output-format stream-json --verbose payload shape
• Sync C# SDK constants/options/models with upstream CLI changes
• Add or update tests for new flags/models/features
• Update docs (README + docs/Features + docs/Architecture if needed)

Opened automatically by scheduled workflow 'Claude Code Upstream Watch'.

[github-actions]

Could not auto-assign @copilot. Please assign manually.

[KSemenenko]

Synced the submodule to and revalidated the current Claude Code CLI contract against the local/CI runtime (Usage: claude [options] [command] [prompt]

Claude Code - starts an interactive session by default, use -p/--print for
non-interactive output

Arguments:
prompt Your prompt

Options:
-d, --debug [filter] Enable debug mode with optional category filtering (e.g., "api,hooks" or "!statsig,!file")
--verbose Override verbose mode setting from config
-p, --print Print response and exit (useful for pipes). Note: The workspace trust dialog is skipped when Claude is run with the -p mode. Only use this flag in directories you trust.
--output-format Output format (only works with --print): "text" (default), "json" (single result), or "stream-json" (realtime streaming) (choices: "text", "json", "stream-json")
--json-schema JSON Schema for structured output validation. Example: {"type":"object","properties":{"name":{"type":"string"}},"required":["name"]}
--include-partial-messages Include partial message chunks as they arrive (only works with --print and --output-format=stream-json)
--input-format Input format (only works with --print): "text" (default), or "stream-json" (realtime streaming input) (choices: "text", "stream-json")
--mcp-debug [DEPRECATED. Use --debug instead] Enable MCP debug mode (shows MCP server errors)
--dangerously-skip-permissions Bypass all permission checks. Recommended only for sandboxes with no internet access.
--allow-dangerously-skip-permissions Enable bypassing all permission checks as an option, without it being enabled by default. Recommended only for sandboxes with no internet access.
--max-budget-usd Maximum dollar amount to spend on API calls (only works with --print)
--replay-user-messages Re-emit user messages from stdin back on stdout for acknowledgment (only works with --input-format=stream-json and --output-format=stream-json)
--allowedTools, --allowed-tools <tools...> Comma or space-separated list of tool names to allow (e.g. "Bash(git:) Edit")
--tools <tools...> Specify the list of available tools from the built-in set. Use "" to disable all tools, "default" to use all tools, or specify tool names (e.g. "Bash,Edit,Read"). Only works with --print mode.
--disallowedTools, --disallowed-tools <tools...> Comma or space-separated list of tool names to deny (e.g. "Bash(git:) Edit")
--mcp-config <configs...> Load MCP servers from JSON files or strings (space-separated)
--system-prompt System prompt to use for the session
--append-system-prompt Append a system prompt to the default system prompt
--permission-mode Permission mode to use for the session (choices: "acceptEdits", "bypassPermissions", "default", "delegate", "dontAsk", "plan")
-c, --continue Continue the most recent conversation
-r, --resume [value] Resume a conversation by session ID, or open interactive picker with optional search term
--fork-session When resuming, create a new session ID instead of reusing the original (use with --resume or --continue)
--no-session-persistence Disable session persistence - sessions will not be saved to disk and cannot be resumed (only works with --print)
--model Model for the current session. Provide an alias for the latest model (e.g. 'sonnet' or 'opus') or a model's full name (e.g. 'claude-sonnet-4-5-20250929').
--agent Agent for the current session. Overrides the 'agent' setting.
--betas <betas...> Beta headers to include in API requests (API key users only)
--fallback-model Enable automatic fallback to specified model when default model is overloaded (only works with --print)
--settings Path to a settings JSON file or a JSON string to load additional settings from
--add-dir <directories...> Additional directories to allow tool access to
--ide Automatically connect to IDE on startup if exactly one valid IDE is available
--strict-mcp-config Only use MCP servers from --mcp-config, ignoring all other MCP configurations
--session-id Use a specific session ID for the conversation (must be a valid UUID)
--agents JSON object defining custom agents (e.g. '{"reviewer": {"description": "Reviews code", "prompt": "You are a code reviewer"}}')
--setting-sources Comma-separated list of setting sources to load (user, project, local).
--plugin-dir <paths...> Load plugins from directories for this session only (repeatable)
--disable-slash-commands Disable all slash commands
--chrome Enable Claude in Chrome integration
--no-chrome Disable Claude in Chrome integration
-v, --version Output the version number
-h, --help Display help for command

Commands:
mcp Configure and manage MCP servers
plugin Manage Claude Code plugins
setup-token Set up a long-lived authentication token (requires Claude subscription)
doctor Check the health of your Claude Code auto-updater
update Check for updates and install if available
install [options] [target] Install Claude Code native build. Use [target] to specify version (stable, latest, or specific version), print-mode flags, unauthenticated behavior, solution tests, smoke tests, packaging). The upstream diff for this sync window was changelog-only, so no upstream-driven SDK surface delta was required beyond updating the tracked reference and keeping tests/docs/constants aligned. Included in release : https://github.com/managedcode/ClaudeCodeSharpSDK/releases/tag/v0.1.1

[KSemenenko]

Synced the anthropics/claude-code submodule to da80366c484698e6370ad9e8abf121f33f8f79e0 and revalidated the current Claude Code CLI contract against the local and CI runtime: claude --help, print-mode flags, unauthenticated behavior, solution tests, smoke tests, and packaging. The upstream diff for this sync window was changelog-only, so no upstream-driven SDK surface delta was required beyond updating the tracked reference and keeping tests, docs, and constants aligned. Included in release v0.1.1: https://github.com/managedcode/ClaudeCodeSharpSDK/releases/tag/v0.1.1