Add MCP sampling/createMessage capability allowing MCP servers to request
LLM completions through the Hermes agent during tool execution. Enables
agent-in-the-loop workflows (data analysis, content generation, decision
making) where servers can leverage the LLM as needed.
Implementation as SamplingHandler class (per-server instance, no globals):
- Text-only sampling: server asks LLM a question, gets text back
- Tool use in sampling: server provides tools, LLM can use them in a
multi-turn loop with configurable max_tool_rounds governance
- Rate limiting (sliding window, configurable max_rpm per server)
- Model resolution (config override > server hint > default)
- Model whitelist (allowed_models per server)
- Token cap (max_tokens_cap per server)
- LLM timeout with asyncio.wait_for
- Credential stripping on responses
- Per-server audit metrics (requests, errors, tokens_used, tool_use_count)
- Configurable log_level for audit verbosity
- Non-blocking: LLM calls offloaded via asyncio.to_thread()
- Proper MCP SDK types: CreateMessageResult for text responses,
CreateMessageResultWithTools + ToolUseContent for tool use responses
- SamplingCapability with SamplingToolsCapability advertised to servers
- Backward compatible: silently disabled if MCP SDK lacks sampling types
Config (all optional, zero breaking changes):
mcp_servers:
my_server:
sampling:
enabled: true # default
model: 'gemini-3-flash'
max_tokens_cap: 4096
timeout: 30
max_rpm: 10
allowed_models: []
max_tool_rounds: 5
log_level: 'info'
Based on the sampling concept from PR #366 by eren-karakus0. Restructured
as a class-based design, fixed critical bugs (wrong return types for tool
use, missing capability advertisement, broken Pydantic validation), and
added tests using real MCP SDK types.
50 new tests, full suite passes (2600 tests).
New browser capabilities and a built-in skill for agent-driven web QA.
## New tool: browser_console
Returns console messages (log/warn/error/info) AND uncaught JavaScript
exceptions in a single call. Uses agent-browser's 'console' and 'errors'
commands through the existing session plumbing. Supports --clear to reset
buffers. Verified working in both local and Browserbase cloud modes.
## Enhanced tool: browser_vision(annotate=True)
New boolean parameter on browser_vision. When true, agent-browser overlays
numbered [N] labels on interactive elements — each [N] maps to ref @eN.
Annotation data (element name, role, bounding box) returned alongside the
vision analysis. Useful for QA reports and spatial reasoning.
## Config: browser.record_sessions
Auto-record browser sessions as WebM video files when enabled:
- Starts recording on first browser_navigate
- Stops and saves on browser_close
- Saves to ~/.hermes/browser_recordings/
- Works in both local and cloud modes (verified)
- Disabled by default
## Built-in skill: dogfood
Systematic exploratory QA testing for web applications. Teaches the agent
a 5-phase workflow:
1. Plan — accept URL, create output dirs, set scope
2. Explore — systematic crawl with annotated screenshots
3. Collect Evidence — screenshots, console errors, JS exceptions
4. Categorize — severity (Critical/High/Medium/Low) and category
(Functional/Visual/Accessibility/Console/UX/Content)
5. Report — structured markdown with per-issue evidence
Includes:
- skills/dogfood/SKILL.md — full workflow instructions
- skills/dogfood/references/issue-taxonomy.md — severity/category defs
- skills/dogfood/templates/dogfood-report-template.md — report template
## Tests
21 new tests covering:
- browser_console message/error parsing, clear flag, empty/failed states
- browser_console schema registration
- browser_vision annotate schema and flag passing
- record_sessions config defaults and recording lifecycle
- Dogfood skill file existence and content validation
Addresses #315.
browser_vision now saves screenshots persistently to ~/.hermes/browser_screenshots/
and returns the screenshot_path in its JSON response. The model can include
MEDIA:<path> in its response to share screenshots as native photos.
Changes:
- browser_tool.py: Save screenshots persistently, return screenshot_path,
auto-cleanup files older than 24 hours, mkdir moved inside try/except
- telegram.py: Add send_image_file() — sends local images via bot.send_photo()
- discord.py: Add send_image_file() — sends local images via discord.File
- slack.py: Add send_image_file() — sends local images via files_upload_v2()
(WhatsApp already had send_image_file — no changes needed)
- prompt_builder.py: Updated Telegram hint to list image extensions,
added Discord and Slack MEDIA: platform hints
- browser.md: Document screenshot sharing and 24h cleanup
- send_file_integration_map.md: Updated to reflect send_image_file is now
implemented on Telegram/Discord/Slack
- test_send_image_file.py: 19 tests covering MEDIA: .png extraction,
send_image_file on all platforms, and screenshot cleanup
Partially addresses #466 (Phase 0: platform adapter gaps for send_image_file).
Add a 'platforms' field to SKILL.md frontmatter that restricts skills
to specific operating systems. Skills with platforms: [macos] only
appear in the system prompt, skills_list(), and slash commands on macOS.
Skills without the field load everywhere (backward compatible).
Implementation:
- skill_matches_platform() in tools/skills_tool.py — core filter
- Wired into all 3 discovery paths: prompt_builder.py, skills_tool.py,
skill_commands.py
- 28 new tests across 3 test files
New bundled Apple/macOS skills (all platforms: [macos]):
- imessage — Send/receive iMessages via imsg CLI
- apple-reminders — Manage Reminders via remindctl CLI
- apple-notes — Manage Notes via memo CLI
- findmy — Track devices/AirTags via AppleScript + screen capture
Docs updated: CONTRIBUTING.md, AGENTS.md, creating-skills.md,
skills.md (user guide)
Authored by rovle. Adds Daytona as the sixth terminal execution backend
with cloud sandboxes, persistent workspaces, and full CLI/gateway integration.
Includes 24 unit tests and 8 integration tests.
New docs page covering clipboard image paste across all platforms:
- Platform compatibility table (macOS, Linux X11/Wayland, WSL2, VSCode, SSH)
- Setup instructions per platform (xclip, wl-paste, powershell.exe)
- Explanation of terminal paste limitations and why /paste exists
- SSH workarounds (file upload, URLs, X11 forwarding, messaging)
- Keybinding reference (Alt+V, Ctrl+V, /paste) with when each works
Also updates CLI commands reference with /paste command and
Alt+V keybinding documentation.
- 25 documentation pages covering Getting Started, User Guide, Developer Guide, and Reference
- Docusaurus with custom amber/gold theme matching the landing page branding
- GitHub Actions workflow to deploy landing page + docs to GitHub Pages
- Landing page at root, docs at /docs/ on hermes-agent.nousresearch.com
- Content extracted and restructured from existing repo docs (README, AGENTS.md, CONTRIBUTING.md, docs/)
- Auto-deploy on push to main when website/ or landingpage/ changes
teknium1
tars90percent
rovle