CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Added

• Telegram (sven-node): scaffolding for Telegram integration.

1.9.0 - 2026-03-22

Added

• sven-frontend: shared agent-wiring layer extracted from sven-tui for reuse across frontends.
• sven-gui: Slint desktop GUI; sven-ui merged into sven --gui (single binary).
• GUI: session persistence; lazy chat loading; per-session token usage persisted; full markdown in the chat view; markdown in thinking and tool result bubbles; scrollable tool bubbles; todo tool results in chat; vertical chat layout; sidebar search filter; SearchInput/SearchBar styling; Slint GUI skill.
• Channels (sven-channels): Channel trait and multi-platform adapters; E2E integration tests for channel → manager → reply.
• Scheduler (sven-scheduler): cron, interval, and one-shot jobs.
• Integrations (sven-integrations): email, calendar, and voice.
• Memory (sven-memory): SQLite store with FTS5 semantic search.
• Config: schema for channels, scheduler, email, calendar, voice, memory, and webhooks.
• Node: generic webhook endpoints; proactive agent integrations wired through bootstrap and tool registry.
• Skills: load system-installed skills from /usr/share and /usr/local; always reload skill content from disk when the agent loads a skill.

Fixed

• GUI: nested-runtime panic on --gui; Slint layout, interaction, display, ask-question UX, picker, queue, spinners, markdown wrapping, session list busy indicator, completion, errors, clear, highlighting (multiple rounds of fixes).
• TUI: markdown aligned with GUI (block quote vs list); first completed todo item no longer shows a stray bullet.

Changed

• GUI: large UI refactor; removed standalone “current tool” display in favor of clearer chat-centric UX.
• Docs: README condensed and expanded with accurate feature lists; user guides for channels, scheduler, email, calendar, voice, memory, webhooks, and use cases; AGENTS.md updated for sven-frontend, sven-gui, and dual-binary layout.

1.8.1 - 2026-03-15

Added

• Tests (sven-model): coverage that the full MCP tool schema is passed through to the model API.

Fixed

• MCP: omit null capabilities in initialize for strict servers; show disabled status when enabled: false in config.
• MCP: wait for tools in headless mode and refresh on ToolsChanged.
• TUI: compile fixes for ratatui 0.30; CompletionOverlay viewport now driven by ListState (removed fixed max_visible).

1.8.0 - 2026-03-14

Added

• MCP client: broad client-side MCP server support (SSE, sessions, OAuth integration).
• MCP OAuth: PKCE flow with auto-auth, token lifecycle, and scope discovery (no manual scope lists).
• CLI: sven mcp auth flow; default OAuth redirect sven://sven.mcp with container fallback; cursor:// support.
• Release: make release targets accept --no-confirm for non-interactive runs.

Fixed

• MCP / OAuth: RFC-compliant PKCE; stop perpetual auth loops; trigger OAuth on 401; skip OAuth flows in headless/CI; improved SSE and session handling.
• Config: recognize mcp_servers; fix SKILL.md frontmatter parsing.

Changed

• Headless: apply settings on startup; reduce unlabelled noise; show context path.
• TUI: focus the input pane when it is clicked.

1.7.5 - 2026-03-13

Added

• TUI: conversation cost in the status bar.
• GDB: gdb_start_server Makefile target made target-agnostic.
• Docs: AGENTS.md added.

Fixed

• Tokens / UI: status bar token display; subagents run at correct depth; restore subagent chat hierarchy on restart with new chat at top; suppress noisy tracing when a subagent runs acp serve.
• Subagents & sessions: subagent UX, agent error handling, and background session completeness.
• sven-config: default model auto-detection priority (OpenRouter first) with regression test.

Changed

• CLI: auto-enable headless mode when a positional prompt is provided.
• TUI: focus the chat list on click so keyboard navigation applies immediately.

1.7.4 - 2026-03-12

Added

• OpenRouter Auto & Free routers: openrouter/auto and openrouter/free are registered in the model catalog and resolvable via --model openrouter/auto / --model openrouter/free. openrouter/auto is the default out-of-the-box model (replacing openai/gpt-4o) when OPENROUTER_API_KEY is available. auto_router_allowed_models in driver_options maps to the nested plugins structure expected by the OpenRouter Auto Router API.
• Benchmark: Terminal-Bench 2.0 evaluation via Harbor.

Fixed

• TUI drag/resize: unified system — SplitPrefs extracted from LayoutCache for durable split dimensions; anchor_offset on ResizeDrag so borders track the grab point; PeersSplitBorder in HitArea; single hit_test() path.
• Peers-split border drag: use peers_pane.y + peers_pane.height as the sidebar bottom (fixes upward-drag snap to minimum).
• Subagents: inherit the live model from the parent.
• Cache / tokens: cache hit rate capped near ~49% from double-counted tokens — corrected.
• CI: record resolved model in chat output documents.

Changed

• Model catalog: models.yaml parsed once per process via OnceLock catalog_ref(); lookups use the cached slice instead of cloning on every call.
• Model provider: check_api_key_requirement and transform_openrouter_options split into private helpers in lib.rs.
• Repository: .gitignore extended for Python __pycache__ paths.

1.7.3 - 2026-03-11

Added

• Compound system tools: built-in tools consolidated into action-dispatched compound tools for cleaner tool surface and fewer tool slots.

Fixed

• Live timestamp removed from stable system prompt to avoid unnecessary prompt churn and improve caching.
• Model and mode transitions now apply immediately in the TUI instead of waiting for the next user message.
• OpenRouter: Anthropic prompt caching enabled for Anthropic models.
• switch_model takes effect in the next model turn (correct staging behavior).
• Mode upgrades from within a conversation are now allowed (tools no longer block mode changes).
• Grey-on-grey rendering artifacts in pager and chat view eliminated.
• Command prompt for /command is loaded from disk on each run so edits are picked up without restart.
• Modifier+click on chat content is ignored so the terminal can open links.
• OpenSSL cross-compilation for macOS and Linux aarch64 in CI.

1.7.2 - 2026-03-11

Fixed

• E2E tests: replaced hardcoded local paths and forward context_open args in CI.

1.7.1 - 2026-03-11

Fixed

• Clippy: remove empty line after doc comment in task_tool.rs.
• CI: centralize build commands via Makefile and fix macOS OpenSSL cross-compilation.

1.7.0 - 2026-03-10

Added

• ACP (Agent Client Protocol): full protocol compliance across server and client roles; --model/--provider for acp serve, model inheritance.
• Unified todo tool: replaces todo_write with a single tool supporting read/add/update/set actions.
• Chat tree view: subagent sessions shown as children in the TUI.
• ToolDisplay trait: chat view tool labels and summaries use shared display logic.
• LLM-generated chat titles and delete-active-chat; animation updates.
• Compound tools: 42 built-in tools consolidated into 14 compound tools.
• P2P peers pane in TUI; keyboard-first segment actions (per-line icons removed).
• Website: overhauled copy, SEO, and section SVGs; logo and hero font (JetBrains Mono).
• Comprehensive adversarial test suite (64 Rust + 25 Bats tests).

Fixed

• Peers pane resize drag, peer list population, and P2P dial noise.
• Subagent exit code, chat pane keybindings, peers-split drag direction.
• Full tool result shown at expand level 2 in TUI.
• Task tool returns result immediately when PromptResponse arrives.
• Thought block display and subagent user message.
• Subagent inactivity timeout during long tool calls (bootstrap).
• Chat display and welcome screen after streaming refactor.
• Tool rendering, shell intent, subagent blocking, and character width (CJK ambiguous).
• Chat title race so LLM-generated title is used when available.
• Merge positional prompt with stdin in CI runner (not in main); workflow only for -f.
• File deletion (sven-input); trailing empty lines in segments; delete as default button.
• Build errors: From<anyhow::Error> for FileModifiedError, ToolDisplayInfo export.
• Pre-commit runs clippy only on staged files.

Changed

• Streaming seasoning/thinking shown without backticks in gray dim text; thinking content preview instead of word count; tool scan animation sinusoidal; streaming cursor blink ~500ms; timeouts to prevent indefinite hangs.
• ACP used for subagent communication with structured streaming.
• Refactor: eliminate duplication and decouple crate architecture.

1.6.0 - 2026-03-09

Added

• Multi-session TUI: run several conversations simultaneously without restarting sven. Collapsible chat list sidebar (toggle with Ctrl+B) with live status; n new session, Enter switch, d delete, a archive.
• Background sessions: switching away does not interrupt the agent; spinner shows running sessions; events buffered when you return.
• YAML persistence: sessions saved to ~/.config/sven/history/<id>.yaml, restored on launch; last active session restored on startup.
• Per-session model and mode; mouse drag to resize chat list sidebar.
• Inspector overlay: skills, subagents, peers, context; /tools inspector with node-proxy support.
• Parallel tool slots (sven-core): streaming dispatch with multiple concurrent tool slots.
• Vim-style pane navigation (focus chat list / main pane).

Fixed

• /new now creates a proper new session in the sidebar with isolated agent (no bleed from old session).
• Per-session /model and /mode state; queued messages and abort_pending cleared on new session; message-edit state cleared on new session.
• JSONL log path tracked per-session; state leakage on new sessions fixed (input, queue, edit state, agent state isolated).
• Chat list click no longer triggers wrong session’s segment actions (HitArea hit-test); duplicate agent on initial session removed; message loss on exit fixed (session state saved).
• wait_for_message no longer drops replies when peer responds before waiter registers.
• Neovim double-response bug; inspector and pager UX improved.
• TodoUpdate segment ordering in tool output; chat pane selection and scrollbar ghost/stuck rendering.

Changed

• Chat document formatting (sven-input); mouse routing centralized (HitArea); inspector overlay dead kind field removed; docs for parallel tool slots and multi-session TUI.

1.5.0 - 2026-03-09

Added

• Team orchestration in sven-node with layered tool architecture (sven-team crate + TUI).

Fixed

• Team tool confusion that caused the model to duplicate work and misuse APIs.
• Teammate task execution and node restart resilience.

1.4.0 - 2026-03-08

Added

• ACP (Agent Client Protocol) server for IDE integration (e.g. Zed).
• Agent team orchestration (sven-team crate + TUI); multi-agent orchestration roadmap.
• Site: install script at install route; install action and package updates.

Fixed

• ACP bridge: drop TextComplete/ThinkingComplete to prevent double output.
• Chat view display and find_file glob matching; subagent model wiring.
• Team picker keys through dispatch and missing key bindings.
• Clippy lints; pre-commit fails on format changes.
• CI and installation route fixes.

Changed

• Docs: Zed ACP config snippet (agent_servers, not assistant.provider); README mentions ACP IDE integration.

1.3.2 - 2026-03-07

Added

• sven tool list and sven tool call commands for direct tool invocation from the CLI
• Support for executing inline <invoke> tool calls emitted by MiniMax and similar models
• Subagent streaming via process-based TaskTool (replaces in-process execution)
• /clear and /new TUI commands for conversation management
• Cache hit percentage displayed inline after token counts in the status bar
• Cumulative session token totals shown instead of per-turn counts
• Context percentage now uses cumulative tokens for accuracy

Fixed

• Unicode corruption when multi-byte characters span SSE chunk boundaries
• Token tracking for multi-call turns; simplified completion menu
• Correct ctx% denominator; exact provider token counts shown in status bar
• Grouped segment rendering and hardcoded test paths in TUI
• /install endpoint now served as plain text instead of SPA fallback

Changed

• Site container runtime switched from nginx to serve
• Built-in tools refactored into categorised modules
• Types hardened and boilerplate eliminated across the core agent codebase
• Site placeholder images replaced with real sven SVG illustrations

1.3.0 - 2026-03-05

Added

• RLM context tools: memory-mapped large-content analysis with context_query, per-sub-query timeouts, and real-time UI drain
• TUI UX overhaul: clean hierarchical agentic interface with improved input handling, multiline paste, and rendering fixes
• Clock-driven animations for thinking indicator, tool-scan, and stream cursor in TUI
• Shell-style input history in TUI
• Markdown table rendering in TUI
• Mouse drag selection in TUI
• max_output_tokens and max_input_tokens config fields per model
• Provider-first config structure with environment variable expansion
• React marketing landing page for agentsven.com
• Install script served at /install from the site container
• Latest release version injected at site build time
• 70 integration tests for RLM context tools on real data
• 39-test end-to-end suite for edit_file tool
• bats end-to-end tests for context tools and error handling

Fixed

• Garbled welcome logo — normalised row widths and fixed connector colours
• Welcome screen logo colours and tagline URL
• Multiline paste display, completion double-slash, and rendering artefacts
• Mid-turn mode consistency and mode display in status bar
• aarch64 OpenSSL build in CI (non-fatal fallback)

1.2.3 - 2026-03-03

Fixed

• TUI node-proxy mode: connect, stream, and lock model/mode to node correctly
• Node-proxy TUI now forwards Resubmit events to the node (streamed responses)
• Stale waiter slots in the session multiplexer
• Session depth accumulation regression; aarch64 release build

Changed

• Renamed gateway → node across the entire codebase for naming consistency

1.2.2 - 2026-03-03

Fixed

• All circular message-loop paths across P2P channels (three separate loop vectors closed)
• Infinite session echo loops and delegation chain corruption in P2P network
• Dual-delivery of messages on the P2P session bus

Changed

• Removed model auto-nudge from sven-core
• Updated dependency versions across Cargo workspace

1.2.1 - 2026-03-03

Fixed

• Node model defaults, error messages, and CLI ergonomics improvements

1.2.0 - 2026-03-03

Added

• Agent-to-agent collaboration via libp2p session messaging and named rooms
• Browser web terminal on sven-node with WebAuthn passkey authentication and PTY sessions
• Plug-and-play TLS for sven-node using Tailscale and a local CA

Changed

• Complete overhaul of sven-tui with a modern ratatui architecture

1.1.0 - 2026-03-01

Added

• MCP server support via sven mcp serve
• Node-proxy mode for sven mcp serve (proxies MCP requests through a remote node)

Changed

• Updated SPDX licence tags across all crates

1.0.4 - 2026-03-01

Fixed

• macOS OpenSSL build linkage

1.0.3 - 2026-03-01

Fixed

• CI pipeline and release workflow errors

1.0.2 - 2026-03-01

Added

• Initial public release
• Multi-arch release pipeline with CI builds for Linux x86_64/aarch64 and macOS, plus curl-pipe install script
• Codified context infrastructure: three-tier knowledge base for large codebases
• Agent-to-agent task routing over P2P with named rooms
• sven-node heartbeat, separate control-plane configuration, and configurable agent listen address
• Peer allow-list and mDNS local discovery for P2P networks
• find_file tool (unified from glob / glob_file_search)
• Apache 2.0 licence

Fixed

• 12 P2P security vulnerabilities for hostile network deployment
• Circular delegation false-positive caused by empty peer ID in P2P
• Agent stall nudge firing on legitimate single-tool-call + answer patterns