AHP Swift Package v0.7.0

[0.7.0] — 2026-07-31

Implements AHP 0.7.0.

Added

• Capability-gated side chats can start from a chat turn and return bounded chat transcripts as message attachments.
• Multiroot session support: AgentCapabilities.multipleWorkingDirectories capability (with immutablePrimary, which pins workingDirectories[0] as a fixed primary root that clients MUST NOT remove or reorder), CreateSessionParams.workingDirectories and SessionMetadata.workingDirectories (equal-peer set, mirrored onto SessionState/SessionSummary), CreateChatParams.workingDirectories and ChatState/ChatSummary.workingDirectories (a subset of the session's set), and the client-dispatchable session/workingDirectorySet / session/workingDirectoryRemoved and chat/workingDirectorySet / chat/workingDirectoryRemoved actions for mutating those sets. (#337)
• AHPClient.completions() and AHPClient.sessionConfigCompletions() convenience methods, plus AHPCommands.completions(id:) / AHPCommands.sessionConfigCompletions(id:) request factories, giving the generated Completions* / SessionConfigCompletions* types a typed entry point. (#340)
• result on ToolResultTerminalContent (exitCode, preview, truncated), present once the command exits. (#323)
• Optional isPty metadata on ToolResultTerminalContent and TerminalState indicating whether a terminal resource is PTY-backed. (#322)
• Side-chat sources and origins can now carry an immutable selected-text snapshot with optional response-part provenance.

Changed

• Side-chat sources and origins now carry stable turnId references instead of nested active/completed turn snapshots.
• MessageChatAttachment.endTurn is optional; hosts pin the latest completed turn when it is omitted, and chat attachments may reference chats in other sessions.
• chat/toolCallReady may finalize a tool call's provisional contributor and intention without changing client execution ownership.
• Final tool input may be inline or a lazy ContentRef, and streaming deltas may include partial parameters.

Removed

• ToolResultTerminalCompleteContent; command completion data now lives on ToolResultTerminalContent. (#322, #323)
• Non-standard resource_encryption_alg_values_supported and resource_encryption_enc_values_supported fields from ProtectedResourceMetadata. (#368)

Fixed

• createChat.source is once again a fully discriminated union: fork and side-chat sources both require a kind, and missing or unknown kinds are rejected.
• Restored authentication documentation in the authenticate command and McpAuthRequirement that a secret-scanner had redacted, including a corrupted WWW-Authenticate: Bearer scope="…" header example.