hermes-agent/website/docs/user-guide
Teknium 850413f120 feat(computer-use): cua-driver backend, universal any-model schema
Background macOS desktop control via cua-driver MCP — does NOT steal the
user's cursor or keyboard focus, works with any tool-capable model.

Replaces the Anthropic-native `computer_20251124` approach from the
abandoned #4562 with a generic OpenAI function-calling schema plus SOM
(set-of-mark) captures so Claude, GPT, Gemini, and open models can all
drive the desktop via numbered element indices.

- `tools/computer_use/` package — swappable ComputerUseBackend ABC +
  CuaDriverBackend (stdio MCP client to trycua/cua's cua-driver binary).
- Universal `computer_use` tool with one schema for all providers.
  Actions: capture (som/vision/ax), click, double_click, right_click,
  middle_click, drag, scroll, type, key, wait, list_apps, focus_app.
- Multimodal tool-result envelope (`_multimodal=True`, OpenAI-style
  `content: [text, image_url]` parts) that flows through
  handle_function_call into the tool message. Anthropic adapter converts
  into native `tool_result` image blocks; OpenAI-compatible providers
  get the parts list directly.
- Image eviction in convert_messages_to_anthropic: only the 3 most
  recent screenshots carry real image data; older ones become text
  placeholders to cap per-turn token cost.
- Context compressor image pruning: old multimodal tool results have
  their image parts stripped instead of being skipped.
- Image-aware token estimation: each image counts as a flat 1500 tokens
  instead of its base64 char length (~1MB would have registered as
  ~250K tokens before).
- COMPUTER_USE_GUIDANCE system-prompt block — injected when the toolset
  is active.
- Session DB persistence strips base64 from multimodal tool messages.
- Trajectory saver normalises multimodal messages to text-only.
- `hermes tools` post-setup installs cua-driver via the upstream script
  and prints permission-grant instructions.
- CLI approval callback wired so destructive computer_use actions go
  through the same prompt_toolkit approval dialog as terminal commands.
- Hard safety guards at the tool level: blocked type patterns
  (curl|bash, sudo rm -rf, fork bomb), blocked key combos (empty trash,
  force delete, lock screen, log out).
- Skill `apple/macos-computer-use/SKILL.md` — universal (model-agnostic)
  workflow guide.
- Docs: `user-guide/features/computer-use.md` plus reference catalog
  entries.

44 new tests in tests/tools/test_computer_use.py covering schema
shape (universal, not Anthropic-native), dispatch routing, safety
guards, multimodal envelope, Anthropic adapter conversion, screenshot
eviction, context compressor pruning, image-aware token estimation,
run_agent helpers, and universality guarantees.

469/469 pass across tests/tools/test_computer_use.py + the affected
agent/ test suites.

- `model_tools.py` provider-gating: the tool is available to every
  provider. Providers without multi-part tool message support will see
  text-only tool results (graceful degradation via `text_summary`).
- Anthropic server-side `clear_tool_uses_20250919` — deferred;
  client-side eviction + compressor pruning cover the same cost ceiling
  without a beta header.

- macOS only. cua-driver uses private SkyLight SPIs
  (SLEventPostToPid, SLPSPostEventRecordTo,
  _AXObserverAddNotificationAndCheckRemote) that can break on any macOS
  update. Pin with HERMES_CUA_DRIVER_VERSION.
- Requires Accessibility + Screen Recording permissions — the post-setup
  prints the Settings path.

Supersedes PR #4562 (pyautogui/Quartz foreground backend, Anthropic-
native schema). Credit @0xbyt4 for the original #3816 groundwork whose
context/eviction/token design is preserved here in generic form.
2026-05-08 11:07:38 -07:00
..
features feat(computer-use): cua-driver backend, universal any-model schema 2026-05-08 11:07:38 -07:00
messaging docs(msgraph): webhook listener setup page + env var reference 2026-05-08 10:29:58 -07:00
skills feat(skills/linear): add Documents support + Python helper script (#20752) 2026-05-06 08:27:21 -07:00
_category_.json feat: add documentation website (Docusaurus) 2026-03-05 05:24:55 -08:00
checkpoints-and-rollback.md feat(checkpoints): v2 single-store rewrite with real pruning + disk guardrails (#20709) 2026-05-06 05:44:35 -07:00
cli.md docs: resync reference, user-guide, developer-guide, and messaging pages against code (#17738) 2026-04-29 20:55:59 -07:00
configuration.md docs: register triage_specifier in the aux-models enumerations (#21494) 2026-05-07 13:07:18 -07:00
configuring-models.md docs: document custom model aliases for /model command (#20475) 2026-05-05 19:11:20 -07:00
docker.md fix(docker): refuse root gateway runs in official image 2026-05-07 05:59:25 -07:00
git-worktrees.md docs: restructure site navigation — promote features and platforms to top-level (#4116) 2026-03-30 18:39:51 -07:00
profiles.md Revert "fix(cli): CLI/TUI on local backend always uses launch directory, ignores terminal.cwd (#19242)" (#19329) 2026-05-04 00:43:58 +05:30
security.md docs: resync reference, user-guide, developer-guide, and messaging pages against code (#17738) 2026-04-29 20:55:59 -07:00
sessions.md docs: add Microsoft Teams to platform lists across docs 2026-05-04 20:59:18 -07:00
tui.md docs: two-week gap sweep — platforms, CLI, config, TUI, hooks, providers (#17727) 2026-04-29 20:32:37 -07:00
windows-wsl-quickstart.md docs(wsl2): expand Windows (WSL2) guide — filesystem, networking, services, pitfalls (#20748) 2026-05-06 06:45:32 -07:00