Changelog

0.9.0 2026-03-27

Netclaw v0.9.0 — Two-phase streaming timeout, FTS5 memory recall, turn-based distillation, and streaming performance fix

Features

• Added two-phase streaming timeout for LLM calls — introduces separate FirstTokenTimeout and StreamIdleTimeout settings, replacing the single monolithic timeout. The first-token window catches provider failures fast while the idle timeout tolerates long-running tool-use streams without premature cancellation. (#460)
• Added turn-based memory distillation trigger alongside idle timeout — sessions now trigger memory distillation at turn boundaries in addition to the existing 90-second idle timer, so busy multi-turn conversations no longer defer all memory formation until the session goes quiet. (#442, #463)
• Migrated memory recall search from LIKE to SQLite FTS5 full-text search with BM25 scoring — recall queries now use a dedicated FTS5 virtual table for relevance-ranked results instead of substring matching, significantly improving recall quality for multi-word queries. (#436)
• Added token delta and cumulative logging to LoggingChatClient — each streaming chunk now logs its individual token delta alongside the running cumulative total, making it easier to diagnose token consumption during long tool-use loops. (#443, #445)

Bug Fixes

• Fixed daemon restarting active sessions during config reload — the config restart path now drains all active sessions gracefully before applying the new configuration, preventing mid-turn interruptions. (#468)
• Fixed web_fetch saving binary content with incorrect extensions and corrupted bytes — binary responses (images, PDFs, etc.) are now saved with the correct file extension derived from the Content-Type header, and raw bytes are written without text encoding round-trips. (#386, #461)
• Enforced HTTPS by default in the web_fetch tool — requests to plain HTTP URLs are now rejected unless explicitly allowed, hardening the default security posture for outbound fetches. (#458)
• Fixed netclaw init auto-detecting Slack webhook format from URL — the init wizard now inspects the webhook URL to determine whether it is a Slack incoming webhook and sets "Format": "Slack" automatically, eliminating a common misconfiguration. (#401, #462)
• Stopped persisting system prompt in Akka journal — the full system prompt was previously included in persisted session state, bloating the journal and slowing recovery. It is now excluded from persistence and reconstructed on recovery. (#451)
• Enforced record-class storage for evidence memories — evidence memory proposals that arrived as plain strings are now normalized into the expected record-class format before storage, preventing downstream deserialization failures. (#446, #452)
• Added TurnOutcome to prevent quick-exit paths from inflating turn count — tool-only and no-op turns that exit early without an LLM response no longer increment the turn counter, giving more accurate turn-based metrics. (#450)
• Added singleton guard and PID file watchdog to prevent duplicate daemons — launching a second daemon instance now fails fast with a clear error instead of silently competing for resources. A PID file watchdog detects stale lock files from crashed processes. (#433)
• Fixed console output leaks in CLI and daemon — stray Console.Write calls that bypassed the structured logging pipeline are now routed through the proper output channels. (#425)

Performance

• Fixed O(n^2) ToolCallTextFilter scanning during streaming — replaced the quadratic per-chunk scan with incremental delta detection, eliminating a hot path that caused visible latency on long tool-call sequences. (#454, #457)

Diagnostics

• Unified daemon uptime into a single DaemonStartClock singleton — previously uptime was computed from multiple inconsistent sources. All uptime queries now read from one authoritative clock. (#456)
• Surfaced diagnostic detail when update check fails — netclaw update and background update checks now log the specific HTTP status and error body instead of a generic "check failed" message. (#431)

Dependencies

• Bumped ModelContextProtocol.Core from 1.0.0 to 1.1.0. (#434)