Adds eval-only benchmark for YC-Bench (collinear-ai/yc-bench), a
deterministic long-horizon benchmark where the agent acts as CEO of an
AI startup over a simulated 1-3 year run.
Key design decisions verified against the official yc-bench repo:
- Uses 'sim init' (NOT 'yc-bench run') to avoid starting a competing
built-in agent loop
- Correct DB table names: 'companies' and 'sim_events'
- Correct 4 domains: research, inference, data_environment, training
- Penalty values are preset-dependent (not hardcoded in system prompt)
- Sequential evaluation (each run is 100-500 turns)
- Follows TerminalBench2 patterns: KeyboardInterrupt handling,
cleanup_all_environments(), tqdm logging handler, streaming JSONL
yc-bench added as optional dependency: pip install hermes-agent[yc-bench]
Closes#340
Authored by PercyDikec. Fixes#443. Without re.DOTALL, the regex .*
doesn't match newlines, so multi-line JSON arguments (the normal case)
silently fail to parse. Every other parser in the codebase that matches
across lines already uses re.DOTALL.
Add daytona_image to batch_runner per-prompt container image overrides
so batch processing works with the Daytona backend. Update inline
comments in RL environment files (agent_loop, tool_context) and
process_registry docstrings to include Daytona in backend lists.
Introduced a new evaluation script for the OpenThoughts-TBLite environment, enabling users to run evaluations with customizable options. The script includes logging capabilities and real-time output, enhancing the evaluation process for terminal agents. This addition complements the existing benchmarking tools and improves usability for users.
Introduced a new evaluation environment for OpenThoughts-TBLite, including the main evaluation script, configuration YAML, and README documentation. This environment provides a faster alternative to Terminal-Bench 2.0, featuring 100 difficulty-calibrated tasks for terminal agents. The setup allows for easy evaluation and configuration, enhancing the benchmarking capabilities for terminal agents.
- Enhanced tool registration process by implementing a self-registering mechanism in each tool file via `tools/registry.py`.
- Updated `model_tools.py` to serve as a thin orchestration layer, simplifying tool discovery and registration.
- Revised documentation to clarify the steps for adding new tools, emphasizing the importance of schema, handler, and registration consistency.
- Improved dependency resolution in environments by ensuring toolsets are queried from `tools/registry.py`.
- Updated the tool name from "search" to "search_files" across multiple files to better reflect its functionality.
- Adjusted related documentation and descriptions to ensure clarity in usage and expected behavior.
- Enhanced the toolset definitions and mappings to incorporate the new naming convention, improving overall consistency in the codebase.
Two-part implementation:
Part A - Curated Bounded Memory:
- New memory tool (tools/memory_tool.py) with MEMORY.md + USER.md stores
- Character-limited (2200/1375 chars), § delimited entries
- Frozen snapshot injected into system prompt at session start
- Model manages pruning via replace/remove with substring matching
- Usage indicator shown in system prompt header
Part B - SQLite Session Store:
- New hermes_state.py with SessionDB class, FTS5 full-text search
- Gateway session.py rewritten to dual-write SQLite + legacy JSONL
- Compression-triggered session splitting with parent_session_id chains
- New session_search tool with Gemini Flash summarization of matched sessions
- CLI session lifecycle (create on launch, close on exit)
Also:
- System prompt now cached per session, only rebuilt on compression
(fixes prefix cache invalidation from date/time changes every turn)
- Config version bumped to 3, hermes doctor checks for new artifacts
- Disabled in batch_runner and RL environments
Single `todo` tool that reads (no params) or writes (provide todos array
with merge flag). In-memory TodoStore on AIAgent, no system prompt
mutation, behavioral guidance in tool description only. State re-injected
after context compression events. Gateway sessions hydrate from
conversation history. Added to all platform toolsets.
Also wired into RL agent_loop.py with per-run TodoStore and fixed
browser_snapshot user_task passthrough from first user message.
New process registry and tool for managing long-running background processes
across all terminal backends (local, Docker, Singularity, Modal, SSH).
Process Registry (tools/process_registry.py):
- ProcessSession tracking with rolling 200KB output buffer
- spawn_local() with optional PTY via ptyprocess for interactive CLIs
- spawn_via_env() for non-local backends (runs inside sandbox, never on host)
- Background reader threads per process (Popen stdout or PTY)
- wait() with timeout clamping, interrupt support, and transparent limit reporting
- JSON checkpoint to ~/.hermes/processes.json for gateway crash recovery
- Module-level singleton shared across agent loop, gateway, and RL
Process Tool (model_tools.py):
- 7 actions: list, poll, log, wait, kill, write, submit
- Paired with terminal in all toolsets (CLI, messaging, RL)
- Timeout clamping with transparent notes in response
Terminal Tool Updates (tools/terminal_tool.py):
- Replaced nohup background mode with registry spawn (returns session_id)
- Added workdir parameter for per-command working directory
- Added check_interval parameter for gateway auto-check watchers
- Added pty parameter for interactive CLI tools (Codex, Claude Code)
- Updated TERMINAL_TOOL_DESCRIPTION with full background workflow docs
- Cleanup thread now respects active background processes (won't reap sandbox)
Gateway Integration (gateway/run.py, session.py, config.py):
- Session reset protection: sessions with active processes exempt from reset
- Default idle timeout increased from 2 hours to 24 hours
- from_dict fallback aligned to match (was 120, now 1440)
- session_key env var propagated to process registry for session mapping
- Crash recovery on gateway startup via checkpoint probe
- check_interval watcher: asyncio task polls process, delivers updates to platform
RL Safety (environments/):
- tool_context.py cleanup() kills background processes on episode end
- hermes_base_env.py warns when enabled_toolsets is None (loads all tools)
- Process tool safe in RL via wait() blocking the agent loop
Also:
- Added ptyprocess as optional dependency (in pyproject.toml [pty] extra + [all])
- Fixed pre-existing bug: rl_test_inference missing from TOOL_TO_TOOLSET_MAP
- Updated AGENTS.md with process management docs and project structure
- Updated README.md terminal section with process management overview
- Updated task filter descriptions for clarity and added a new skip task feature to exclude incompatible tasks.
- Introduced a set of modal incompatible tasks to prevent execution errors in cloud environments.
- Implemented streaming JSONL logging for task results, preserving data even on interruptions.
- Refactored task evaluation logic to include skipped task reporting and improved error handling.
- Implemented a cleanup process to terminate any remaining sandboxes after evaluation, addressing issues with orphaned thread pool workers.
- Enhanced logging to inform users about the cleanup process, ensuring better resource management and user awareness.
- Added task_timeout parameter to enforce a maximum wall-clock time for each task, automatically scoring as FAIL if exceeded.
- Introduced terminal_timeout and tool_pool_size parameters to improve command execution and concurrency management.
- Updated logging to provide detailed task execution times and timeout handling, enhancing overall monitoring.
- Removed outdated evaluate_config.yaml file to streamline configuration management.
- Introduced terminal_timeout and terminal_lifetime parameters to control command execution and sandbox inactivity.
- Updated environment variable handling to allow configuration overrides for terminal settings.
- Enhanced logging to provide detailed information about terminal settings during initialization.
- Added tool_pool_size parameter to dynamically resize the thread pool for tool execution, improving concurrency management.
- Increased thread pool size for tool execution from 8 to 128 to improve concurrency and prevent starvation.
- Added a function to resize the tool executor dynamically based on configuration.
- Enhanced logging to track API call durations and tool execution times, including warnings for slow tools.
- Improved overall performance monitoring by logging detailed information for each turn in the agent loop.
- Increased max_token_length from 16000 to 32000 to allow for longer inputs.
- Adjusted agent_temperature from 0.6 to 0.8 for more varied responses.
- Extended test_timeout from 180 to 600 seconds to accommodate longer evaluations.
- Updated data directory path for saving evaluations to ensure proper organization.
- Introduced new environments: Terminal Test Environment and SWE Environment, each with default configurations for testing and software engineering tasks.
- Added TerminalBench 2.0 evaluation environment with comprehensive setup for agentic LLMs, including task execution and verification.
- Enhanced ToolContext with methods for uploading and downloading files, ensuring binary-safe operations.
- Updated documentation across environments to reflect new features and usage instructions.
- Refactored existing environment configurations for consistency and clarity.
- Updated `.gitignore` to exclude `testlogs` directory.
- Refactored `handle_web_function_call` in `model_tools.py` to support running async functions in existing event loops, improving compatibility with Atropos.
- Introduced a thread pool executor in `agent_loop.py` for running synchronous tool calls that internally use `asyncio.run()`, preventing deadlocks.
- Added `ToolError` class to track tool execution errors, enhancing error reporting during agent loops.
- Updated `wandb_log` method in `hermes_base_env.py` to log tool error statistics for better monitoring.
- Implemented patches in `patches.py` to ensure async-safe operation of tools within Atropos's event loop.
- Enhanced `ToolContext` and `terminal_tool.py` to utilize the new async handling, improving overall tool execution reliability.
- Added new environments for reinforcement learning, including `HermesSweEnv` for software engineering tasks and `TerminalTestEnv` for inline testing.
- Introduced `ToolContext` for unrestricted access to tools during reward computation.
- Updated `.gitignore` to exclude `wandb/` directory.
- Enhanced `README.md` with detailed architecture and usage instructions for Atropos environments.
- Added configuration files for SWE and terminal test environments to streamline setup.
- Removed unnecessary compiled Python files from `__pycache__`.
