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tai/CHANGELOG.md

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Changelog

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

The format is based on Keep a Changelog.

[Unreleased]

Added

  • Tier 3 core session memory implementation:
    • new src/tai/session_store.py persistent ChromaDB store
    • --session-memory option on tai run
    • prior-session retrieval injected into analysis/follow-up prompts
    • final response indexing at session end
  • Planner enhancements for broader service detection:
    • generic service candidate extraction from free text
    • package presence probes in plans (rpm -q and dpkg-query -W)
  • SSH read-only allowlist expanded to permit package presence commands (rpm, dpkg-query)
  • Session memory tests in tests/test_session_store.py

Changed

  • Documentation alignment updates in README and ROADMAP to reflect implemented session memory and package-presence capabilities.

[0.4.0] - 2026-05-06

Added

  • runbooks/ corpus with service troubleshooting guides: ssh, nginx, postgres, disk, kernel, docker, sssd, xorg, wayland, x2go, selinux, apparmor
  • Runbook knowledge store module src/tai/runbook_store.py (persistent ChromaDB-backed index and query)
  • Chroma telemetry no-op client src/tai/chroma_telemetry.py to suppress noisy local telemetry errors
  • tai runbooks command group with:
    • sync for indexing all Markdown runbooks
    • list for listing indexed metadata
    • add for indexing a single runbook file
  • --runbooks option on tai run to enable Tier 2 runbook retrieval
  • Initial analysis RAG path using retrieved diagnostic chunks (build_analysis_message_with_chunks)
  • Follow-up RAG path updates with tighter top_k and runbook context injection
  • AI runtime controls:
    • --ai-timeout-seconds
    • --ai-max-tokens
  • Non-streaming AI completion path for improved local backend reliability
  • Service/subsystem presence probes in collection plans:
    • unit-file checks
    • expected binary path checks
    • status/journal/config probes for recognized services including sssd
  • Prompt instruction for "component absent or not installed" interpretation when presence signals are missing
  • Runbook store unit tests in tests/test_runbook_store.py
  • CLI tests updated for tai run subcommand and non-streaming completion mocks
  • README refreshed with current CLI, architecture layout, RAG/runbook workflow, and usage examples
  • docs/ARCHITECTURE.md with end-to-end flow, module responsibilities, safety boundaries, and fallback behavior

Removed

  • .github/workflows/ci.yml — GitHub Actions workflow removed; CI is now Gitea-only

Decided

  • Implementation language: Python
  • Distribution strategy: single distributable binary via Nuitka (PyInstaller as fallback)
  • SSH authentication: keypair only (ed25519/RSA); auto-accept new hosts; hard reject on host key change with MITM warning
  • SSH bastion support: --jump-host flag using SSH native ProxyJump
  • SSH config behavior: use ~/.ssh/config by default; allow override via --ignore-ssh-config
  • Interface: interactive REPL for v0.1; textual-based TUI (split-pane) for v0.2+
  • RAG Tier 1 strategy: semantic diagnostic chunk retrieval with local embeddings
  • RAG Tier 2 strategy: Markdown runbooks persisted in embedded ChromaDB