hypothesis-machine/CHANGELOG.md

Changelog

Unreleased

• Fixed the research loop and agent tree getting permanently stuck after research_control stop: start now restarts a stopped/completed run in the same session (AgentTree.restart revives the run, archives old branches, and resets the root), ResearchLoop.start resets iteration counters, and goal changes are allowed after stop/completion.
• Cancelled/failed/archived children no longer count toward the per-agent child limit, and archived agents are ignored by the duplicate-task guard.
• cancel() no longer overwrites an already recorded agent result.
• Added a per-agent execution timeout (agent_timeout_seconds, default 1800) so a hung agent session fails instead of blocking wait forever.
• Full-text search now prefix-matches tokens (tolerates Russian/English inflections without stemming) and safely handles punctuation and FTS5 metacharacters instead of throwing or returning false negatives.
• Hardened the web gateway against SSRF TOCTOU: outbound downloads now resolve DNS once, validate the address, and connect to the validated IP directly (pinned resolution), so DNS rebinding cannot redirect the connection to a private target; malformed search results no longer break the whole query; the web cache is bounded (oldest entries evicted past 500 files).
• Experiment review is now truly independent: the reviewer must not be a descendant of the experiment author (in addition to not being the author).
• Experiment stdout/stderr are capped at 512 KB so runaway container output cannot exhaust memory or disk.
• Verified that Pi's extension tool registry is per-extension-instance, so reload re-registration is safe (no fix required).
• research_control pause/resume no longer desync the agent tree from the loop: pausing a non-running loop now errors instead of silently marking the tree as paused, and resume requires the loop to actually be paused.
• read_artifact now resolves symlinks before the confinement check, so a symlink inside the project cannot leak files from outside it.
• Added a live subagent dashboard: a TUI widget above the editor shows the research run id, loop status, iteration, active agents with elapsed time, and recently finished agents (updated every 1.5 s, hidden when idle).
• Subagents no longer stall the main chat on serial model backends: new agent_concurrency (default 3) caps how many subagent sessions stream at once, and optional subagent_model routes subagents to a different model/backend (e.g. a local Ollama model) so they never contend with the main session.
• New /agents command opens an interactive overlay with the full agent tree: tree glyphs (├─/└─/│), colored statuses and icons, live elapsed time, keyboard navigation (↑/↓), and a detail pane (Enter) showing each agent's task and result. The live widget header now hints at /agents.
• New /agents-panel command toggles a persistent OpenCode-style right-side panel with the live agent tree: non-capturing (typing keeps working), auto-refreshed every 1.5 s, hidden on terminals narrower than 100 columns, and closed automatically on shutdown.
• The right-side panel now fills the whole right column (width 40%, full height) and shows each running subagent's most recent activity under its row — the last tool call with its query or the last assistant text — read from the tail of the agent's session file (cached by file size).

0.1.1 — 2026-07-31

• Added GitHub CI, CodeQL, Dependabot, contribution/security templates, and the local release checklist.
• Updated the development toolchain to ESLint 10 and aligned the minimum Node.js version with Pi 0.83 (22.19+).
• Added the official ModelRegistry compatibility path for Pi 0.78 while retaining shared ModelRuntime behavior on Pi 0.83+.
• Added agent_end continuation fallback for Pi versions predating agent_settled.
• Improved startup diagnostics and verified /team through Pi 0.78 RPC mode.
• Fixed Redis container capabilities and verified a live Firecrawl v2 scrape.

0.1.0 — 2026-07-31

• Initial Pi extension package.
• Recursive persistent AgentSessions and dynamic Markdown agent factory.
• Tree limits, replication, messaging, cancellation, recovery, and /team.
• Markdown/SQLite research memory and source provenance.
• Local SearXNG/Firecrawl gateway with SSRF controls and cache.
• Explicit bounded research loop.
• Docker-only reproducible experiment runner.
• Unit, integration, and extension smoke tests.